Which of the following is an odd function?
f(x) = x3 + 5x2 + x
O F(x)= √x
Of(x) = x2 + x
O f(x) = -x

Answers

Answer 1

Option 4

f(x) = -x is an odd function

Solution:

A function is odd if and only if f(–x) = –f(x)

Option 1

[tex]f(x) = x^3 + 5x^2 + x[/tex]

Substitute x = -x in above equation

[tex]f(-x) = (-x)^3 + 5(-x)^2 + (-x)[/tex]

Cubes always involve multiplying a number by itself three times, so if the number is negative the cube will always be negative

Ans squaring results in positive

[tex]f(-x) = -x^3 + 5x -x[/tex]  --- eqn 1

[tex]-f(x) = -(x^3 + 5x^2 + x)\\\\-f(x) = -x^3 - 5x^2 - x[/tex]  ---- eqn 2

Comparing eqn 1 and eqn 2,

[tex]f(-x) \neq -f(x)[/tex]

Therefore not an odd function

Option 2

[tex]f(x) = \sqrt{x}[/tex]

[tex]f(-x) = \sqrt{-x}[/tex]

[tex]-f(x) = - \sqrt{x}[/tex]

Therefore,

[tex]f(-x) \neq -f(x)[/tex]

Therefore not an odd function

Option 3

[tex]f(x) = x^2 + x\\\\f(-x) = (-x)^2 + (-x)\\\\f(-x) = x^2 - x[/tex]

[tex]-f(x) = -(x^2 + x) = -x^2 - x[/tex]

[tex]f(-x) \neq -f(x)[/tex]

Therefore not an odd function

Option 4

[tex]f(x) = -x\\\\f(-x) = -(-x) = x[/tex]

[tex]-f(x) = -(-x) = x[/tex]

[tex]f(-x) = -f(x)[/tex]

Thus option 4 is correct and it is an odd function

Answer 2

Answer:

D

Step-by-step explanation:

just took test on edge


Related Questions

Sarah is buying a pair of jeans that regularly cost $60. They are on sale for 40% off. What is the sales price of the jeans?


Answers

The answer is $36. $60 - 40% = $36 (60•.40)

what is the y intercept pf y=5

Answers

Answer:

The y-intercept is the point (0,5)

Step-by-step explanation:

we know that

The y-intercept is the value of y when the value of x is equal to zero

In this problem the value of y is a constant for all values of x

so

For x=0

The value of y=5

therefore

The y-intercept is the point (0,5)

Kyle scored 4 points in his sixth basketball game of the season, bringing his average for the season down to 9 points a game. What is the minimum and maximum that his median points per game may be at this point in the season? PLEASE ANSWER!! 25 POINTS!!!

Answers

Answer:

The minimum is 9, meaning he continued to score an avg of 9 points per game. The maximum could be infinity, because not enough info is given.

Step-by-step explanation:

Original: 9

Possible: 9, infinite

Is anyone good with this? I need help finding the answer.

Answers

to solve this problem, we have to find the perimeter of the shape.
we already know that two of the sides are 82m, all we need to do is find the circumference of the semicircles.
to find circumference, you multiply the diameter of a circle by pi. since we have two identical semicircles, we have one full circle. 66•3.14=207.24
207.24+82+82=371.24
the answer is 371.24m

Aliyah has 75 candy canes and 45 holiday cookies. She wants to divide them into gift bags, so that each bag has an equal number of candy canes and each bag has the same number of cookies as all the other bags. What is the greatest number of gift bags that Aliyah can make? How many candy canes will be in each bag? How many cookies will be in each bag?

Answers

Answer:

1) 15 gift bags2) 3 holiday cookies

Explanation:

1) Find the greatest number that divides exactly both 75 (candy canes) and 45 (holiday cookies).

That is, find the GCF (greatest common factor) of 75 and 45.

45 = 3² × 575 = 3 × 5²GCF = common factors each raised to its least exponent: 3×5 = 15

Then, the greatest number of gift bags, so that each bag has an equal number of candy canes and same number of cookies that Aliyah can make is 15.

2) How many cookies will be in each bag?

To find the number of cookies that will be in each bag, you divide the number of holiday cookies by the number of gift bags:

45 holiday cookies / 15 gift bags = 3 holiday cookies per bag.

Thus, each bag will contain 3 holiday cookies.

Use the equation below to answer the question.
y = 3x + 6
Which equivalent equation is correctly matched with a key feature of the graph of the function it represents?

Answers

Answer:

The signa notation to represent the first five ten f(x) is given by [tex] f(x)=\sum\limits^{5}_{n=1}a_n[/tex]

Step-by-step explanation:

Given sequence is -5, -9, 13...

Let f(x) be the given sequence and is denoted by

[tex]f(x)=\{-5,-9,-13,...\}[/tex]

Let the first term be [tex]a_1, 2^{\textrm{nd}}[/tex]  term be [tex]a_3,...[/tex]

ie, [tex]a_1=-5,a_2=-9, a_3=-13,...[/tex]

To find the common difference d:

[tex]d=a_2-a_1[/tex]

[tex]=-9-(-5)[/tex]

[tex]=-9-(+5)[/tex]

[tex]d=-4[/tex]

[tex]d=a_3-a_2[/tex]

[tex]=-13-(-9)[/tex]

[tex]=-13+9[/tex]

[tex]d=-4[/tex]

Therefore the common difference d is -4 for given sequence f(x) with [tex]a_1=-5[/tex] and d=-4, the seqence f(x) is an arithmetic sequence

By defintion of arithmetic sequence

[tex]a_n=a+(n-1)d\hfill(1)[/tex]

Now to find [tex]a_4, a_5[/tex]:

put n=4 in equation (1)

[tex]a_4=a+(4-1)d[/tex]

[tex]a_4=-5+(3)(-4)[/tex]        [since a=-5, d=-4]

[tex]=-5-12[/tex]

[tex]a_4=-17[/tex]

in equation (1)

[tex]a_5=a+(5-1)d[/tex]

[tex]a_5=-5+(4)(-4)[/tex]       [since a=-5, d=-4]

[tex]=-5-16[/tex]

[tex]a_5=-21[/tex]

Therefore [tex]a_4=-17[/tex] and [tex]a_5=-21[/tex]

Therefore [tex]f(x)=\{-5,-9,-13,-17,-21,...\}[/tex]

Now to represent the sum of the first five terms of f(x) using sigma notation as below

[tex]f(x)=\sum_{n=1}^5 a_n[/tex]

where [tex]\sum_{n=1}^5 a_n=a_1+a_2+a_3+a_4+a_5[/tex]

           [tex]-5-9-13-17-21[/tex]

[tex]\sum_{n=1}^5 a_n=-65[/tex]

What is the domain and range of the function y = 2x2 - 4x - 10?

Answers

Answer:

Step-by-step explanation:

The domain of all polynomials is all real numbers.  To find the range, let's solve that quadratic for its vertex.  We will do this by completing the square.  To begin, set the quadratic equal to 0 and then move the -10 over by addition. The first rule is that the leading coefficient has to be a 1; ours is a 2 so we factor it out.  That gives us:

[tex]2(x^2-2x)=10[/tex]

The second rule is to take half the linear term, square it, and add it to both sides.  Our linear term is 2 (from the -2x).  Half of 2 is 1, and 1 squared is 1.  So we add 1 into the parenthesis on the left.  BUT we cannot ignore the 2 sitting out front of the parenthesis.  It is a multiplier.  That means that we didn't just add in a 1, we added in a 2 * 1 = 2.  So we add 2 to the right as well, giving us now:

[tex]2(x^2-2x+1)=10+2[/tex]

The reason we complete the square (other than as a means of factoring) is to get a quadratic into vertex form.  Completing the square gives us a perfect square binomial on the left.

[tex]x^2-2x+1=(x-1)^2[/tex] and on the right we will just add 10 and 2:

[tex]2(x-1)^2=12[/tex]

Now we move the 12 back over by subtracting and set the quadratic back to equal y:

[tex]2(x-1)^2-12=y[/tex]

From this vertex form we can see that the vertex of the parabola sits at (1,-12).  This tells us that the absolute lowest point of the parabola (since it is positive it opens upwards) is -12.  Therefore, the range is R={y|y ≥ -12}

The melting point of the chemical bromine is -7.2 C. The boiling point of bromine is 58.8 C. Write and solve an equation to find how much greater the boiling point of bromine is than the melting point. Hurry answers NOW!!!

Answers

Answer:

58.8- -7.2= 51.6

Step-by-step explanation:

Because it asked for how much greater, I subtracted.

Answer:

7.2-58.8=51.6

Step-by-step explanation:

14. a. Find the prime factorization of 180.
b. Explain why every natural number with a
zero in the ones place is a composite
number.

Answers

Answer:

a. 2² * 3² * 5; b. All numbers with a zero in the ones place is even.

Step-by-step explanation:

Final answer:

The prime factorization of 180 is 2 × 2 × 3 × 3 × 5. Every natural number with a zero in the ones place is a composite number because it can be divided evenly by 2 and at least one other number.

Explanation:

a. Prime factorization of 180:

To find the prime factorization of 180, we need to find the prime numbers that divide 180 evenly. Start by dividing 180 by the smallest prime number, 2. We get 180 ÷ 2 = 90. Then divide 90 by 2 again: 90 ÷ 2 = 45. Now, divide 45 by 3: 45 ÷ 3 = 15. Finally, divide 15 by 5: 15 ÷ 5 = 3. Therefore, the prime factorization of 180 is 2 × 2 × 3 × 3 × 5.

b. Explanation of why every natural number with a zero in the ones place is a composite number:

A composite number is a number that has more than two factors. Any natural number with a zero in the ones place can be divided evenly by 2 and at least one other number, making it a composite number. For example, 10 is divisible by 2 and 5, and 20 is divisible by 2 and 10. So, every natural number with a zero in the ones place is a composite number.

table
Camillo is making gourmet peanut butter and jelly sandwiches for a food challenge. What is the unit price of a loaf of bread at each store?

Store A:
Store B:
Store C:
Store D:

Answers

Answer:

Store A:  

$1.98 per loaf

Store B:  

$1.95 per loaf

Store C:  

$2.01 per loaf

Store D:  

$2.02 per loaf

Step-by-step explanation:

5.94 divided by 3 = 1.98

7.80 divided by 4 = 1.95

10.05 divided by 5 = 2.01

12.12 divided by 6 = 2.02

Answer:

Store A:  

$1.98 per loaf

Store B:  

$1.95 per loaf

Store C:  

$2.01 per loaf

Store D:  

$2.02 per loaf

Step-by-step explanation:

:)

-5 * 1/-7 * 4/8
........................

Answers

Answer:

5/14

Step-by-step explanation:

-5*-1/7*4/8=5/7*4/8=20/56=5/14

The average of five weights is 13 grams. This set of of five weights is then increased by another weight of 7 grams. What is the average of the 6 weights?

Answers

Answer:

the answer is 12

Step-by-step explanation:

You just find the total weight and divide it by the number of weights

hope this helped ;3

Answer:

12 g

Step-by-step explanation:

Recall that

Average Weight = Sum of All weights  ÷ Number of Weights

in the first case we are given that average of 5 weights is 13g

i.e Average weight (of 5 weights) = 13g and number of weights = 5

or, using the formula above,

13 = sum of 5 weights ÷ 5   (rearranging)

sum of 5 weights = 13 x 5 = 65 g

we are subsequently told that one more weight of 7 g is added,

hence, new number of weights = 6

and,

sum of 6 weights = sum of original 5 weights + sum of 6th weight

= 65 g + 7 g = 72 g

once again using the first formula

Average Weight (of 6 weights) = Sum of All weights  ÷ Number of Weights

= 72  ÷ 6

= 12g

What does [tex]4![/tex] equal?

Answers

Answer:

4! = 24

Step-by-step explanation:

The "!" in math is a factorial.

A product in a four factorial is the product of all the numbers from one to 4.

[tex]4!= 1*2*3*4=24[/tex]

Two trains leave Stations 396 miles apart at the same time and travel towards each other. One train travels at 95 mph while other travels 85 mph. How long will it take two trains to meet?

Answers

It will take 2.2 hours for the trains to meet.

Step-by-step explanation:

Given,

Distance between two trains = 396 miles

Speed of one train = 95 mph

Speed of other train = 85 mph

Combined speed of trains = 95+85 = 180 mph

Distance = Speed * Time

Time = [tex]\frac{Distance}{Speed}[/tex]

Time = [tex]\frac{396}{180}[/tex]

Time = 2.2 hours

It will take 2.2 hours for the trains to meet.

Keywords: speed, distance

Learn more about distance at:

brainly.com/question/13219835brainly.com/question/1836777

#LearnwithBrainly

Final answer:

The two trains will take approximately 2.2 hours to meet.

Explanation:

To find the time it takes for the two trains to meet, we can use the formula:

Time = Distance/Speed

In this case, the distance between the two trains is 396 miles. The combined speed of the two trains is 95 mph + 85 mph = 180 mph. Substituting these values into the formula, we get:

Time = 396/180 = 2.2 (rounded to the nearest tenth)

So it will take approximately "2.2 hours" for the two trains to meet.

Learn more about Time taken for trains to meet here:

https://brainly.com/question/35551989

#SPJ3

Look at the following numbers
-6 0 6 12
Which pair of numbers has a sum of 0?

Answers

Answer:

-6, 6

Step-by-step explanation:

-6+6=0

Find the volume of a right circular cone that has a height of 10.4 m and a base with a
radius of 6.2 m. Round your answer to the nearest tenth of a cubic meter.

Answers

Answer:

16327.1 m^3

Step-by-step explanation:

V=13pi*r^2*h

V=13pi*(6.2)^2*(10.4)

V=16327.1

A concrete patio is
[tex]5 \frac{2}{3} [/tex]
feet wide. It has an area of
[tex]36 \frac{2}{3} [/tex]
square feet. is the concrete slab long enough to fit a 7-foot picnic table without placing the table along the diagonal of the patio? Explain. ​

Answers

The length of concrete patio is 6.5 feet which is less than given 7 foot picnic table. So the concrete slab is not enough to fit a 7 foot picnic table

Solution:

Given that concrete patio is [tex]5\frac{2}{3}[/tex] feet wide

Area of concrete patio = [tex]36\frac{2}{3}[/tex] square feet

Therefore,

[tex]\texttt{Width of concrete patio = }5\frac{2}{3}=\frac{5\times 3+2}{3}=\frac{17}{3}feet\\\\\text{Area of concrete patio = }36\frac{2}{3}=\frac{36\times 3+2}{3}=\frac{110}{3}feet^2[/tex]

Let us find the length of concrete patio

Concrete patio is usually of shape rectangle

Area of concrete patio = length x width

[tex]\frac{110}{3} = length \times \frac{17}{3}\\\\length = \frac{110}{3} \times \frac{3}{17}\\\\length = \frac{110}{17} = 6.4705 \approx 6.5[/tex]

Therefore length of concrete patio is 6.5 feet

So it cannot fit the 7 foot picnic table. Since the length of concrete patio is 6.5 feet which is less than given 7 foot picnic table

What is the percent of change if 40 is increased to 50?

Answers

Answer:

25%.

Step-by-step explanation:

As a fraction it will be (50 - 40)/ 40 = 10/40 = 1/4.

% change  1/4 * 100 = 25%.

Which expression is equivalent to 4x -7-4y + 18-x-y

Answers

Answer:

3x-5y+11

Step-by-step explanation:

4x-7-4y+18-x-y

4x-x-4y-y-7+18

3x-5y+11



Priya Wants to buy three tickets for a concert she has earned 135 and each ticket cost 50 she borrows the rest of the money she needs from a bank and buys the tickets how can you represent them out of money that Priyahas after buying the tickets

Answers

Answer:

y=50x-135

Step-by-step explanation:

If each ticket costs 50 then for three tickets, Priya needs 3*50=150

However, since she earned 135, then she's less 150-135=15

The best way to present the money she borrowed is

y=50x-135

Where x is the number of tickets bought

Final answer:

Given the info, Priya needs to borrow $15 from the bank to afford all 3 tickets, so after purchasing, she's out of her own money and in debt to the bank.

Explanation:

Essentially the question asks us how much money Priya has left after buying three concert tickets. Each ticket is priced at $50. She has earned $135 herself, so let's subtract the cost of the tickets from what she has earned.

We find that Priya needs to borrow $15 from the bank in order to purchase all three tickets (because $50 * 3 - $135 = $15).

So after buying the tickets, she would be out of her own money and $15 in debt to the bank.

Learn more about Money Management here:

https://brainly.com/question/33446099

#SPJ11

Imagine you were shopping in the city of Los Angeles and purchased the following:
Shoes: $64.99
Shirt: $34.99
Bag: $45.50
What would the subtotal be BEFORE taxes? (Be sure to use $ sign and a decimal.)​

Answers

Answer:

Subtotal = $145.48

Step-by-step explanation:

Products purchased:

Shoes, Shirt and bag.

Cost of shoes = $64.99

Cost of shirt = $34.99

Cost of bag = $45.50

The subtotal of the the products purchased before taxes can be calculated by finding the sum of all the costs.

[tex]Subtotal = \textrm{Cost of shoes + Cost of shirt + Cost of bag}[/tex]

[tex]Subtotal =\$64.99+\$34.99+\$45.50 [/tex]

[tex]Subtotal = \$145.48[/tex] (Answer)

Please help me this is urgent.!

Answers

V= 3.14• 5^2•4
V= 3.14 •25•4
V= 78.5•4
V=314

Sorry I couldn’t give a more detailed explanation but here is the original equation for volume of a cylinder:

V=πr2h

Hope this helps comment below for more questions :)

Answer:

V = 314 mm³

Step-by-step explanation:

The volume (V) of a cylinder is calculated as

V = πr²h ( r is the radius and h the height )

Here diameter = 10, hence r = 10 ÷ 2 = 5 and h = 4, thus

V = π × 5² × 4

   = 3.14 × 25 × 4 = 3.14 × 100 = 314 mm³

What is the volume of the triangular prism?

Answers

Answer:

A

Step-by-step explanation:

The volume of the triangular prism is

[tex]V=A_{base}\cdot h,[/tex]

where

h = height

Base = triangle.

In your case,

[tex]A_{base}=\dfrac{1}{2}\cdot 4\cdot 4=8\ ft^2\\ \\h=1\ ft,[/tex]

then

[tex]V=8\cdot 1=8\ ft^3[/tex]

1/4d + 5 Please show work too

Answers

Answer:

5 1/4

Step-by-step explanation:

add 1/4 to 5 and you get 5 1/4

Show My Work:

1/4 + 5 =

5 1/4

Answer:

1/4(d+20)

Step-by-step explanation:

1/4d+5=1/4(d+20)

Which shows the expression x^2-1/x^2-x in simplest form

Answers

Answer:

[tex]\large\boxed{\dfrac{x+1}{x}=1+\dfrac{1}{x}}[/tex]

Step-by-step explanation:

[tex]\dfrac{x^2-1}{x^2-x}=(*)\\\\x^2-1=x^2-1^2\qquad\text{use}\ a^2-b^2=(a-b)(a+b)\\=(x-1)(x+1)\\\\x^2-x=(x)(x)-(x)(1)\qquad\text{use the distributive property}\\=x(x-1)\\\\(*)=\dfrac{(x-1)(x+1)}{x(x-1)}\qquad\text{cancel}\ (x-1)\\\\=\dfrac{x+1}{x}=\dfrac{x}{x}+\dfrac{1}{x}=1+\dfrac{1}{x}[/tex]

The expression x^2-1 / x^2-x in its simplest form is 1 + 1/x.

How to simplify a given expression?

The given expression can be simplified by eliminating the common terms from the denominator and numerator. By doing this, the expression can be simplified.

The given expression is:

[tex]\frac{x^{2}-1 }{x^{2}-x}[/tex]

It can be simplified as shown below:

[tex]\frac{x^{2}-1 }{x^{2}-x} = \frac{(x+1)(x-1 )}{x(x-1)}[/tex]

The numerator is split using the identity :

[tex]a^{2} -b^{2} =(a+b)(a-b)[/tex]

It can be further simplified as follows:

[tex]\frac{x^{2}-1 }{x^{2}-x} = \frac{(x+1)(x-1 )}{x(x-1)}\\= \frac{x+1}{x} \\=\frac{x}{x} +\frac{1}{x} \\= 1+\frac{1}{x}[/tex]

We have simplified the given expression into 1 + 1/x.

Thus, the expression x^2-1 / x^2-x in its simplest form is 1 + 1/x.

Learn more about simplifying here: https://brainly.com/question/723406

#SPJ2

how many seconds are in a day?

Answers

Answer:

86400 seconds

Step-by-step explanation:

1 year consists of 365 days. 1 day has 24 hours, each hour has 60 minutes and each minute has 60 seconds. 1 day = (24 hours/day) × (60 minutes/hour)(60 seconds/minute) = 86400 seconds

HOPE THIS HELPED ;3

6.3 - 9.5 wroten as a fraction in simplest form

Answers

Answer:

-3 2/4

Step-by-step explanation:

I calculated so I am correct and it's not -32

its 3  2/4

Ethan borrowed $1,200 from a loan company at 15% simple interest for 6 months. How much did he have to pay each month on the installment plan?

Answers

Answer: 1080

Step-by-step explanation: pls mark

brainliest

2 tanx/1 - tan2x + 1/ 2 cos2x -1= cosx + sinx/ cosx - sinx​

Answers

[tex]\frac{2 \tan x}{1-\tan ^{2} x}+\frac{1}{2 \cos ^{2} x-1}=\frac{\cos x+\sin x}{\cos x-\sin x}[/tex] is proved

Solution:

Given that,

[tex]\frac{2 \tan x}{1-\tan ^{2} x}+\frac{1}{2 \cos ^{2} x-1}=\frac{\cos x+\sin x}{\cos x-\sin x}[/tex]

Let us first solve the L.H.S

[tex]\text { L. H.S }=\frac{2 \tan x}{1-\tan ^{2} x}+\frac{1}{2 \cos ^{2} x-1}[/tex]  --- (1)

By trignometric identities,

[tex]\tan 2 x=\frac{2 \tan x}{1-\tan ^{2} x}[/tex]

[tex]\cos 2 x=2 \cos ^{2} x-1=\cos ^{2} x-\sin ^{2} x[/tex]

By using these in (1) we get,

[tex]\text { L. H.S }=\tan 2 x+\frac{1}{\cos 2 x}[/tex]

By definition of tan,

[tex]tan x = \frac{sinx}{cosx}[/tex]

Therefore,

[tex]L. H.S =\frac{\sin 2 x}{\cos 2 x}+\frac{1}{\cos 2 x}\\\\L. H . S=\frac{1+\sin 2 x}{\cos 2 x}$[/tex]  --- (ii)

By trignometric identities,

[tex]\cos 2 x=2 \cos ^{2} x-1=\cos ^{2} x-\sin ^{2} x[/tex]

[tex]\begin{aligned}&\sin 2 x=2 \sin x \cos x\\\\&\cos ^{2} x+\sin ^{2} x=1\end{aligned}[/tex]

By using these in (ii)

[tex]\text { L. H.S }=\frac{\cos ^{2} x+\sin ^{2} x+2 \sin x \cos x}{\cos ^{2} x-\sin ^{2} x}[/tex]  ----- (iii)

We know that,

[tex](a+b)^2 = a^2 + 2ab + b^2[/tex]

Similarly,

[tex](cosx + sinx)^2 = cos^2x + 2cosxsinx + sin^2x[/tex]

Also,

[tex]a^2 - b^2 = (a+b)(a-b)[/tex]

Similarly,

[tex]cos^2x - sin^2x = (cosx+sinx)(cosx-sinx)[/tex]

Therefore apply these in (iii)

[tex]\begin{aligned}&\text { L. } H . S=\frac{(\cos x+\sin x)^{2}}{\cos ^{2} x-\sin ^{2} x}\\\\&\text { L. H.S }=\frac{(\cos x+\sin x)(\cos x+\sin x)}{(\cos x+\sin x)(\cos x-\sin x)}\end{aligned}[/tex]

Cancel out (cos x + sin x) on numerator and denominator

[tex]\text { L. H.S }=\frac{\cos x+\sin x}{\cos x-\sin x}[/tex]

[tex]\frac{2 \tan x}{1-\tan ^{2} x}+\frac{1}{2 \cos ^{2} x-1}=\frac{\cos x+\sin x}{\cos x-\sin x}[/tex]

Thus L.H.S = R.H.S

Thus proved

The calculator shows the result that Enrique got after evaluating the expression 56 + 7 × (34 – 17) – 16 . He checked his work by rounding all of the values to the nearest ten and comparing it to the calculator result. Which is true regarding his estimate and the accuracy of his calculator result?

The estimated result is 140, which suggests the calculator is correct.
The estimated result is 240, which suggests the calculator is incorrect.
The estimated result is 320, which suggests the calculator is incorrect.
The estimated result is 680, which suggests the calculator is incorrect.

Answers

Answer:

The estimated result is 680, which suggests the calculator is incorrect.

Final answer:

The estimated result when rounding to the nearest ten is 130, while the exact calculator result is 159. Therefore, the given options for estimation are all incorrect. The calculator is accurate, but the estimate is lower.

Explanation:

The calculator results for the expression 56 + 7 * (34 - 17) u2013 16 can be checked by estimation. To estimate, we round the numbers to the nearest ten and perform the operations. Here are the steps for estimation:

Round 56 to the nearest ten: 60

Round 34 to the nearest ten: 30

Round 17 to the nearest ten: 20

Perform the rounded operation: 60 + 7 * (30 - 20) u2013 10

The simplified expression would be 60 + 7 * 10 u2013 10

This simplifies further to 60 + 70 u2013 10, which is 130

The exact calculator result would be:

Calculate the parentheses first: 34 - 17 = 17

Multiply by 7: 7 * 17 = 119

Add 56: 56 + 119 = 175

Subtract 16: 175 u2013 16 = 159

The estimated result is 130, and the accurate calculator result is 159. Therefore, none of the options provided are correct as the estimate should be 130, suggesting that while the calculator is accurate, the given estimate options are incorrect.

Other Questions
he expression $130-60t$13060t represents the distance, in miles, the counselor still needs to drive after $t$t hours.What does the $60$60 in the expression represent? For many purposes we can treat ammonia as an ideal gas at temperatures above its boiling point of . Suppose the pressure on a sample of ammonia gas at is tripled. Is it possible to change the temperature of the ammonia at the same time such that the volume of the gas doesn't change? A. yes B. no If you answered yes, calculate the new temperature of the gas. Round your answer to the nearest C. Your company leases a very fast internet connection and pays for it based on usage. You have been asked by the company president to reduce internet line lease costs. You want to reduce the amount of web pages that are downloaded over the leased connection without decreasing performance. What is the best way to do this? a. Install modems in employees' computers b. Implement NAT c. Install a proxy server d. Install a packet-filtering firewall The balanced reaction equation for combustion of heptane, C 7 H 16 , is C 7 H 16 + 11 O 2 7 CO 2 + 8 H 2 O If the reaction produced 23.5 g CO 2 , how many grams of heptane were burned? mass: g C 7 H 16 The reaction of limestone with hydrochloric acid is CaCO 3 + 2 HCl CaCl 2 + CO 2 + H 2 O If the reaction produced 23.5 g CO 2 , how many grams of HCl reacted? mass: g HCl Michelle collected 7 more than twice the number of newspaper David collected. Michelle collected 33 newspaper. How many did David collect A gas in a cylinder is held at a constant pressure of 1.80 * 105 Pa and is cooled and compressed from 1.70 m3 to 1.20 m3 . The internal energy of the gas decreases by 1.40 * 105 J. (a) Find the work done by the gas. (b) Find the absolute value |Q| of the heat flow into or out of the gas, and state the direction of the heat flow. (c) Does it matter whether the gas is ideal? Why or why not Active continental margins are characterized by which of the following?A) No sediment accumulation B) Shallow coastal waters C) Deep-sea trenches D) Sparse earthquake activity E) Broad continental shelves . The number -13 can be classified as:real and naturalreal and wholereal and integerreal and irrational Resourced Minerals Inc. agrees to deliver ten tons of coal to Static Energy Corporation. The agreement states that delivery is to be within "9" days, although the parties intend "90" days. Resourced Minerals cannot convince Static Energy to amend the contract. Resourced Minerals should seekA) Specific performanceB) RescissionC) DamagesD) Reformation Although she prepared well in advance for her speaking assignment, Becky's high-pitched, squeaky voice became a distraction to her classmates. In this example, Becky is struggling with _________.A) communication apprehension.B) enunciation.C) intelligibility.D) vocal rate.E) vocal quality. Why does a cell need to make RNA Iron could be manufactured more easily after the discovery of A. coal for fuelB.charcoal for fuelC.hardwood for fuelD.electricity for fuel The common laboratory solvent diethyl ether (ether) is often used to purify substances dissolved in it. The vapor pressure of diethyl ether, CH3CH2OCH2CH3, is 463.57 mm Hg at 25C.1. In a laboratory experiment, students synthesized a new compound and found that when 21.47 grams of the compound were dissolved in 233.8 grams of diethyl ether, the vapor pressure of the solution was 455.55 mm Hg. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight of this compound? Bob drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 8 hours. When Bob drove home, there was no traffic and the trip only took 5 hours. If his average rate was 21 miles per hour faster on the trip home, how far away does Bob live from the mountains? Do not do any rounding. laboratory testing has improved doctors ability to do what? x/2=1 what is the answer of x You set out to reproduce Thomsons e/m experiment with an accelerating potential of 150 V and adeflecting electric field of magnitude 6.0 106 N/C(a) At what fraction of the speed of light do the electrons move?(b) What magnetic-field magnitude will yield zero beam deflection?(c) With this magnetic field, how will the electron beam behave if you increase the acceleratingpotential above 150 V? 6. Read the statement from a scientific researcher. Many organisms depend on other organisms to live,such as bacteria that live inside cells, and fungi that form parasitic relationships. These organisms arereliant on their hosts to complete their life cycles. Viruses also rely on host cells in a similar manner.Which argument about viruses is supported by the researcher's statement?(a) Viruses create new host cells.(b) Viruses respond to their environments.(c) Viruses are nonliving.(d) Viruses are living. Determine the identity of the daughter nuclide from the beta decay of 8938Sr.9039Y8536Kr8734Se9038Sr8939Y In a paragraph evaluate the social changes woman experienced on the homefront as a result of World War I