What is the circumference of a circle whose area is 121 pi square meters?
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Evaluate the function rule for the given value.
y = 8 ∙ 3^x for x = 4
A: 96
B: 1944
C: 647
D: 648
Answers
y(x) = 8 * 3^x where x = 4:
y(x) = 8 * 3^4 = 8 * 81
y(x) = 648
The Function Rule then being that for every value of x there is one and only one value of y. y is the dependent variable and x is the independent variable.
Laura is baking a cake. The recipe says that she has to mix 64 grams of chocolate powder to the flour. Laura knows that 1 cup of that particular chocolate powder has a mass of 128 grams. She added two over three of a cup of chocolate powder to the flour. Should Laura add more chocolate powder to make the exact recipe or did she go over and by what amount?
She went over by one over three of a cup
She needs to add one over three of a cup
She needs to add one over six of a cup
She went over by one over six of a cup
Answers
1 cup of that particular chocolate powder has a mass of 128 grams: 1c = 128g
64 grams of chocolate powder is x cups.
1c = 128g
x = 64g
1c : 128 g = x : 64g
x = 1c : 128 g * 64 g
x = 0.5 c
64 grams of chocolate powder is 0.5 cups = 1/2 cups
She added two over three of a cup of chocolate powder: 2/3 cups
She need to add 1/2 cups: 1/2 = 3/6 cups
She added 2/3 cups: 2/3 = 4/6 cups
So she added 4/6 - 3/6 = 1/6 cups more.
A projectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 640t. After how many seconds does the projectile take to reach its maximum height? Show your work for full credit.
Answers
h(1)=−16(1^2)+(640)(1)
After simplification, the answer would be h = 624.
If you substituted 2 for t, you would see that h would get smaller. Each time you increased t, h would get smaller.
The product of a number and 3, increased by 5, is 7 less than twice the number. which equation can be used to find this number, n?
Answers
The equation which can determine the number n for the given condition is 3n + 5 = 2n - 7 and that number will be -12.
How to form an equation?Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.
Given that,
The product of a number and 3 = 3n
Increased by 5 = 3n + 5
7 less than twice the number = 2n - 7
Therefore,
3n + 5 = 2n - 7
3n - 2n = -7 - 5
n = -12
Hence "The equation which can determine the number n for the given condition is 3n + 5 = 2n - 7 and that number will be -12".
For more about the equation,
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mehek14 i would love for you to be the one the help me other ppl u try 2 c:
QUESTION 1
(-3X) + 40 = 38
QUESTION 2
5(X + 6) = 50
QUESTION 3
(1/4)X + 24 = 36
QUESTION 4
(-3/4) X + 2 = (½ )X + 6
QUESTION 5
3X + 14 = 6X +11
QUESTION 6
Using substitution, determine if the given value is the solution to the equation.
(2/3)X + 20 = 100 ; X = 120
Yes
No
QUESTION 7
(-16X) - 34 = 30 ; X = 4
Yes
No
QUESTION 8
3X - 72 = (-2) + X; x=70
yes
no
QUESTION 9
Tony and Kara were keeping track of the ball game. At the end of the game, Tony thought that the home team had scored 5 runs, but Kara thought that they scored 3 runs. The announcer said that the home team's final score was the same as the solution to the equation: 45X - 16 = 5X +104.
Who has the correct score?
Tony
Kara
Neither
QUESTION 10
Michelle wanted to buy a small bag of popcorn. There were two signs by the popcorn bin. One sign said that the large popcorn BAG cost $1.50. The other sign listed the small popcorn bag but the price was missing. The price of the small popcorn bag is the same as the solution to the equation: 4(X + 7) = 30.
What is the price of the small popcorn bag?
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Question 2: X = 4
Question 3: X = 48
Question 4: ?
Question 5: X = 1
Question 6: Yes
Question 7: No
Question 8: No
Question 9: Kara (Danvers is always right) < ignore that
Question 10: X = 0.5
Hope this helped!
let f(x) = x 8 and g(x) = x2 - 6x - 7. find f(g(2)). select one:a. -7b. -3c. 10d. 33
Answers
x=2
g (2)=2^2-6.2-7
g (2)=4-12-7
g (2)= -15
f (g (2))=f (-15)= -15+8
f (-15)= -7
logarithm equation. Show the steps to solve. 400/1+e^-x=350
Answers
1 + e^(-x) = 400/350
1 + e^(-x) = 8/7
e^(-x) = 8/7 - 1
e^(-x) = 1/7
1/e^(x) = 1/7
e^(x) = 7
x = log ( base e ) 7 or:
x = ln 7
x = 1.94591
According to the diagram, a 13-foot ladder leans against a 12-foot wall. The distance from the base of the ladder to the base of the wall is 5 feet. Based on this information, which trigonometric ratio has the value 125?
tan C
cos C
tan A
sin A
Answers
The correct answer is tan A
Answer:
tan A
Step-by-step explanation:
Using the notation SOH CAH TOA
sin = opp/hyp
cos = adj/hyp
tan = opp/adj
from the triangle,
hyp = 13 while opp and adj are 12 and 5 respectively
therefore, the ratio 12:5
= tan = opp/adj = 12/5
What is the solution to this system: y=2x+3 and -4x+2y=6
No Solutions
Infinite Solutions
(2,4)
(3,5)
Answers
-4x+2(2x+3) = 6 ... replace y with 2x+3
-4x+4x+6 = 6
0x+6 = 6
0+6 = 6
6 = 6
The last equation is always true regardless of what you pick for x. So there are infinitely many solutions.
I need help on geometry proofs<br />
Answers
1L. line AS congruent line DS 1R. Given
2L. line BS congruent line Cs 2R. Given
3L. Angle ASB congruent Angle DSC 3R. VAT or Vertical Angle Theorem
4L. Triangle ABS congruent Triangle DCS 4R. SAS or Side-angle-side Postulate
5L. angle A congruent angle D 5R. CPCTC
(Corresponding Parts of Congruent Triangles are Congruent)
Please!!!!!!!!! I need this answers ASAP Pleas !!!!!!!!
Question 1
If y varies directly with x and y = 4 when x = 12, then what is the value of y when x = 60?
Question 2
If y varies directly with x and y = 3 when x = 12, then what is the value of y when x = 40?
Question 3
Suppose p varies directly with d, and p = 7 when d = 3. What is the value of d when p = 28?
Question 4
What is the direct variation equation for the table of ordered pairs?
x y
80 56
90 63
100 70
Question 5
What is the direct variation equation for the table of ordered pairs?
x y
60 48
70 56
80 64
Answers
2) 10
3) 12
4) y = 0.7x
5) y = 0.8x
Answer:
1) 20
2) 20
3) 12
4) 0.7
5)0.8
Step-by-step explanation:
when it asks questions like question 1 and 2 and 3 just take what the number is multiplied by
Which expression has the most number of significant figures?
A. 190
B. 1.8
C. 26
D. 206
Answers
190 has 2 sig figs
1.8 has 2 sig figs
26 has 2 sig figs
206 has 3 sig figs
thus, the answer is 206
Which of these is the first step in constructing a congruent segment?
a.
draw a ray
c.
label two points
b.
draw a point
d.
measure the segment
Answers
Answer:
d. measure the segment
Step-by-step explanation:
Two segment is said to be congruent segment if the measure of both segments are same and identical to each other.
So, for drawing congruent segments firstly we have to measure the segment.
Then draw a point.
Then label two points
and lastly draw a ray.
Henry initially has 523 baseball cards. He buys 24 cards each month.
What is a explicit rule for the number of baseball cards Henry has in n months?
Answers
Answer:
I know I am answering 5 years late but...
the correct answer is
an= 24n + 499
I go to k12 and got this correct on my test :))
Please mark brainlyiest if possible because I just need 2 more brainlyiest until I reach Virtuoso. Also leave a thanks if you found this helpful!
Which polynomial expression represents the area of the outermost square tile, shown below?
A square shaped tile with length x plus three is shown
x2 + 6x + 6
x2 + 9x + 6
x2 + 6x + 9
x2 − 6x + 9
Answers
Answer:
The correct answer is C, "x2 + 6x + 9."
Step-by-step explanation:
I just got it correct on the test.
Final answer:
To find the area of a square tile with sides of length x + 3, we square the binomial, resulting in the polynomial expression x² + 6x + 9, which represents the area of the square tile.
Explanation:
The question asks which polynomial expression represents the area of a square tile with sides of length x + 3. To find the area of a square, you multiply the length of one side by itself. In this case, the length of each side of the square is (x + 3), so the area of the square is (x + 3)(x + 3), or (x + 3)².
To expand this expression, we use the formula for squaring a binomial: (a + b)² = a² + 2ab + b². Applying this formula to our expression, we get:
a = x
b = 3
(x + 3)² = x² + 2(3)x + 3²
(x + 3)² = x² + 6x + 9
Therefore, the correct polynomial expression that represents the area of the square tile is x² + 6x + 9.
help me please i dont know how to solve this
Answers
Which shows the conversion of 0.56 mm to inches?
There is 0.03937 inch in 1 millimeter.
A.
0.56 mm × 0.03937 in./mm = 0.022 inches
B.
0.56 mm × 0.03937 in./mm = 2.2 × 10^-3 inches
C.
0.56 mm + 0.03937 in./mm = 0.59937 inches
D.
0.56 mm ÷ 0.03937 in./mm = 14.22 inches
Answers
You can round it 0.022 inches
what does the expression 15 - 3[2+6 (-3] simplify to?
Answers
Solve the inequality W > Y plus H all divided by P for H.
Answers
So in order to solve this, let us eliminate the denominator by multiplying both sides by P so we get Wp > y + H. So to get the value of H, we are going to transfer y and it would look like this. Wp - y > H. So this is the final answer. Hope this helps.
Answer:
WP − Y > H
Step-by-step explanation:
I did the test and got it right
Which is larger 5 miles or 26,300 ft?
Answers
1 mile = 5,280 ft.
5,280 × 5 = 26,400 ft.
So 5 miles is bigger.
Leaving hints or clues about the future events would be considered:
symbolism
metaphor
irony
foreshadowing < this one right?
Answers
graph of y=3 tan x ...?
Answers
will look like a stretched tan (x) by a factor of 3
It's not horizontal line
hope this helps
Simplify (10 + 3i)(5 – 2i) ...?
Answers
50 - 20i + 15i - 6i²
i² = -1
50 - 5i - 6*(-1) =
50 - 5i + 6 =
56 - 5i
why must s-phase occur before mitosis?
...?
Answers
S phase happens after G1 phase and this is a crucial period because this is when DNA is copied. G2 phase then happens, which is prior to mitosis. Once this is complete, this then mitosis happens wherein the cells divides the contents of the nucleus between two daughter cells. Hope this answer helps.
What is the common difference between the elements of the arithmetic sequence below?
–18, –22.5, –27, –31.5, –36
Answers
for example:
1+8=9
2+2+5=9
2+7=9
.....
Convert 96.5 decaliters to hectoliters
Answers
96.5 x 0.1 = 9.65
So there are 9.65 hectoliters in 96.5 deciliters
Help!!!!!: Ben opened a credit card at a department store with an APR of 27.99% compounded monthly. What is the APY on this credit card?
2.33%
31.88%
39.27%
55.98%
Answers
Answer:
31.88%
Step-by-step explanation:
The monthly added compound interest will be:
3.89 %
The new APY interest on the credit card = 3.89 + 27.99
= 31.88 %
Write the fraction as a percent. If necessary, round to the nearest tenth of a percent. 18/25
47.3%
48.6%
72%
73.4%
Answers
0.72 = 72%
What is the radius of a sphere that has a surface area of 196π sq ft?
Answers
Jared is 10 years old and Peter is 15 years old. Together they run 150 yards. How far does each brother run.
Answers
Jared = 10(6) = 60
Peter = 15(6) = 90
10x +15x = 150y
x is now 6
So 10(6) and 15(6)
Peter ran 60 yards.
Jared ran 90 yards.