Answer:
%120
Step-by-step explanation:
Step 1: Divide the new weight by the original weight.
24/20 = 1.2
Step 2: Change 1.2 into percent
To make a percent, multiply the number by 100
1.2 * 100 = %120
Answer: %120
A square orange rug has a green square in the center. The side length of the green square is x inches. The width of the orange band that surrounds the green square is 12 in. What is the area of the orange band?
Answer:
The area of the orange band is 576 + 48x square inches
Step-by-step explanation:
Step 1: Area of the green square
The area of the green square =[tex]side^2[/tex]
The area of the green square = [tex]x^2[/tex] square inches
Step 2: Area of the orange square
The area of the orange square =[tex]side^2[/tex]
The side of the orange square = 12+12 + x = 24 +x
Now the area of the orange square =[tex](x+24)^2[/tex]
Step 3: The area of the orange band
Area of the orange band = area of the orange square - area of the green square
Area of the orange band = [tex](x+24)^2 - x^2[/tex]
expanding and solving the equation we get
[tex]x^2 + 24^2 +48x - x^2[/tex]
[tex]576 + 48 x[/tex] square inches
Final answer:
The area of the orange band surrounding the central green square on the rug is found by subtracting the area of the green square from the area of the entire rug. The formula for the area of the orange band is 48x + 576 square inches, where x represents the side length of the green square.
Explanation:
To find the area of the orange band on the rug, we need to calculate the area of the entire rug and subtract the area of the central green square. The width of the orange band is given to be 12 inches. Therefore, each side of the orange rug is increased by 2 times 12 inches (for both the left and the right side of the green square), making the total length of the rug's side x + 2(12) inches.
The area of the entire rug, which is a larger square, is[tex](x + 24)^2[/tex] square inches. The area of the central green square is [tex]x^2[/tex]square inches. To find the area of the orange band, we subtract the area of the green square from the area of the entire rug which is: [tex](x + 24)^2 - x^2[/tex].
Expanding the squared term we get: [tex]x^2 + 48x + 576 - x^2[/tex], which simplifies to 48x + 576 square inches. That's the area of the orange band surrounding the green square.
What is the product of 5x + 3 and 8x2 - 2x + 5?
Answer:
The product of 5x + 3 and 8x2 - 2x + 5 is 3x2 and 8 + 3x + 5
Step-by-step explanation:
Step 1 :
Equation at the end of step 1 :
((5x + (3and8 • x2)) - 2x) + 5
Step 2 :
Trying to factor a multi variable polynomial :
2.1 Factoring 3x2and8 + 3x + 5
Try to factor this multi-variable trinomial using trial and error
Factorization fails
Final result :
3x2and8 + 3x + 5
Processing ends successfully
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Answer:
40X^3 - 34X^2 + 4X + 15
Step-by-step explanation:
Using Algebraic expansion, the first number in bracket with its coefficience multiplies the second bracket. Equally , the second number in the first bracket is also used to multiply the second bracket, taking note of the sign (addition and minus sign)
5x(8x^2 -2x +5) +3 (8x^2 -2x +5)
= 40X3 - 10X^2 + 10X -24X^2 - 6X + 15
= 40X^3 - 34X^2 + 4X + 15
A Hot air balloon is 750 feet high. It descends 325 feet.
Answer:
425
Step-by-step explanation:
just subtract, 750-325
You subtract 750 - 325 = 425. Your answer is 425.
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(ab + 3)(ab - 3)
2262 +9
o alb2-6ab-9
o 2²2²-9
Answer:
a^2b^2 - 3ab + 3ab - 9
a^2b^2 - 9
Step-by-step explanation:
Find the missing values of the variables
Answer:
What
Step-by-step explanation:
What is the missing variables
Which set of integers is NOT a Pythagorean triple and are NOT the side lengths of a right triangle?
A.) 12 ,16 ,20
B.)10 ,24 ,26
C.)14, 48, 50
D.)27, 32, 45
The set of integers 27, 32, 45 is NOT a Pythagorean triple and are NOT the side lengths of a right triangle ⇒ D
Step-by-step explanation:
The Pythagorean triple is:
The sum of the squares of the least two numbers is equal to the square of the greatest numbera, b and c are three integers where c is the greatest one,then if a² + b² = c², then a, b and c are Pythagorean triplePythagorean triple can form side lengths of a right triangleA. 12, 16, 20
∵ 20 is the greatest number
∵ (12)² + (16)² = 144 + 256 = 400
∵ (20)² = 400
∴ (20)² = (12)² + (16)²
∴ The set of integers 12, 16, 20 is a Pythagorean triple
∴ 12, 16, 20 are the side lengths of a right triangle
B. 10, 24, 26
∵ 26 is the greatest number
∵ (10)² + (24)² = 100 + 576 = 676
∵ (26)² = 676
∴ (26)² = (10)² + (24)²
∴ The set of integers 10, 24, 26 is a Pythagorean triple
∴ 10, 24, 26 are the side lengths of a right triangle
C. 14, 48, 50
∵ 50 is the greatest number
∵ (14)² + (48)² = 196 + 2304 = 2500
∵ (50)² = 2500
∴ (50)² = (14)² + (48)²
∴ The set of integers 14, 48, 50 is a Pythagorean triple
∴ 14, 48, 50 are the side lengths of a right triangle
D. 27, 32, 45
∵ 45 is the greatest number
∵ (27)² + (32)² = 729 + 1024 = 1753
∵ (45)² = 2025
∴ (45)² ≠ (27)² + (32)²
∴ The set of integers 27, 32, 45 is NOT a Pythagorean triple
∴ 27, 32, 45 are NOT the side lengths of a right triangle
The set of integers 27, 32, 45 is NOT a Pythagorean triple and are NOT the side lengths of a right triangle
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In the question for exponential functions y=a•b^x how does the a term relate to a key feature of the graph
Answer:
es mi amigos senior le si nueve diez veite treinta Cien si onu fose locas
Step-by-step explanation:
Point A is located at (3,-6) and point A is located at (1-2). What is the scale factor?
Answer:
The scale factor is 3.
Step-by-step explanation:
Let the origin O(0,0) is the reference point and the coordinates of the point A are given by (3,-6).
Therefore, the distance OA is given by [tex]\sqrt{(3 - 0)^{2} + (- 6 - 0)^{2}} = 3\sqrt{5}[/tex] units.
Again, the coordinates of point A' are (1,-2).
Therefore, the distance OA' is given by [tex]\sqrt{(1 - 0)^{2} + (- 2 - 0)^{2}} = \sqrt{5}[/tex] units.
Hence, the scale factor is [tex]\frac{OA}{OA'} = \frac{3\sqrt{5} }{\sqrt{5}} = 3[/tex]. (Answer)
Write f(x)=8x^2-4x+11 in vertex form
Answer:
[tex]f(x)=8(x-\frac{1}{4})^{2}+\frac{21}{2}[/tex]
or
[tex]f(x)=8(x-0.25)^{2}+10.5[/tex]
Step-by-step explanation:
we have
[tex]f(x)=8x^{2}-4x+11[/tex]
This is a vertical parabola open upward (because the leading coefficient is positive)
The vertex is a minimum
Convert to vertex form
Factor the leading coefficient
[tex]f(x)=8(x^{2}-\frac{1}{2}x)+11[/tex]
Complete the square. Remember to balance the equation by adding the same constants to each side.
[tex]f(x)=8(x^{2}-\frac{1}{2}x+\frac{1}{16})+11-\frac{1}{2}[/tex]
[tex]f(x)=8(x^{2}-\frac{1}{2}x+\frac{1}{16})+\frac{21}{2}[/tex]
Rewrite as perfect squares
[tex]f(x)=8(x-\frac{1}{4})^{2}+\frac{21}{2}[/tex] ----> equation in vertex form
or
[tex]f(x)=8(x-0.25)^{2}+10.5[/tex]
The vertex is the point (0.25,10.5)
60 is 5 times as great as k
Determine the measure of the missing angles. Show your work! Be ready to discuss your answer.
For a.
Since there are already two angles given for the triangle, we can measure the last angle using this formula:
90 + 55 + a = 180
Now solve for "a".
90 + 55 + a = 180
145 + a = 180
a = 180 - 145
a = 35°
For b.
From the picture above, the two triangle's tip are touching and having to form vertical angles. This means that the angles are congruent to each other.
Now that we have two angles in the second triangle(35 and 120), we can use the same formula:
35 + 120 + b = 180
Now solve for "b":
35 + 120 + b = 180
155 + b = 180
b = 180 - 155
b = 25°
Answer:
a = 35 b = 25
Step-by-step explanation:
Triangles always add up to 180 degrees. Knowing this we can first solve the triangle with the right angle.
55 + 90 + a = 180
Before we solve this, keep in mind that the reflective property will be used on angle a, giving the answer to the third angle in the second triangle.
145 + a = 180
-145 -145
a = 35
Now that we have a solved use the reflective property to get it on the second triangle.
120 + 35 + b = 180
155 + b = 180
-155 -155
b = 25
There you have your two angles.
Hope this helped you out.
Find the fifth term in the sequence defined as follows An=4+(-1)^n
Answer:
Step-by-step explanation:
[tex]A_{5}=4+(-1)^5=4-1=3[/tex]
The fifth term of the sequence is 3.
What is Arithmetic progression?An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.
Given to us,
Sequence,
An=4+(-1)^n
For fifth term,
n = 5,
now, we have,
Subsituting the value of n we get,
An=4+(-1)^n
A_5 = 4+(-1)^5
A_5 = 4+(-1)
A_5 = 4 -1
A_5 = 3
Hence, the fifth term of the sequence is 3.
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You put $8000 in an account. The account earns $2400 simple interest in 12 years. What is the annual interest rate
Answer:
b
Step-by-step explanation:
bc i just did it
Answer:
The interest rate was 2.5% per year.
Step-by-step explanation:
GIVING BRAINLIEST Write a proportion that could be used to solve for each variable. Then solve. 16 walls in 40 hours 3 walls in h hours a. 16/40 = h/3; h = 1.2 c. 16/h = 3/40; h = 213.3 b. 16/40 = 3/h; h = 7.5 d. 16/40 = 3/h; h = 8.5
The proportion that could be used to solve for the variable is [tex]\frac{16}{40}=\frac{3}{h}[/tex] ; h = 7.5 ⇒ answer b
Step-by-step explanation:
A proportional relationship: one variable is always a constant value times the other, that constant is called the constant of proportionality
y = k x is the equation of the proportional relationshipWe can write the proportional relationship in the form [tex]\frac{y_{1}}{x_{1}}=\frac{y_{2}}{x_{2}}=k[/tex]The number of walls and the number of hours are increased or decreased together
∴ The number of walls and the number of hours are proportion
∵ 16 walls in 40 hours
∵ 3 walls in h hours
- By using the second rule above
∴ [tex]\frac{16}{40}=\frac{3}{h}[/tex]
The proportion that could be used to solve for the variable is [tex]\frac{16}{40}=\frac{3}{h}[/tex]
Let us solve it to find h
∵ [tex]\frac{16}{40}=\frac{3}{h}[/tex]
- By using cross multiplication
∴ 16 × h = 3 × 40
∴ 16 h = 120
- Divide both sides by 16
∴ h = 7.5
The value of h is 7.5 hours
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What is the answer plz help-thank you
Answer:
14.1cm (3s.f.)
Step-by-step explanation:
Please see attached picture for full solution.
sine angle= opp/hyp
cosine angle= adj/hyp
ΔDEF and ΔXYZ are similar isosceles triangles. What is the measure of X?
75°
105°
60°
30°
Answer: Angle X = 30
Step-by-step explanation: First and foremost, we should recognize that an isosceles triangle has two sides equal and the two angles subtended by the two equal sides are also equal in measurement.
This means. In the diagram on the left, line DE = line DF and that is 10cm.
The similar angles are the ones subtended by the lines identified as being equal, that is
Angle E = angle F and that is 75. If both angles measure a combined total of 150 the third angle can be derived simply as
180 - (75+ 75)
{Sum of angles in a triangle = 180}
180 - (150)
= 30
Therefore angle D = 30.
However having been given in the question that both triangles are similar and are isosceles, then
Angle D = Angle X and that is 30
Answer:
30 Good sir or miss sorry if I'm late dear
Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule
A(n) = 5+(n-1) (1/6)
Answer:
First term: 5
Fourth term: 5 1/2
Tenth term: 6 1/2
Step-by-step explanation:
Let's find the first, fourth and tenth terms of the arithmetic sequence described by the given rule:
A(n) = 5 + (n-1) (1/6)
First term:
A(1) = 5 + (1-1) (1/6)
A(1) = 5 + (0) (1/6)
A(1) = 5
Fourth term:
A(4) = 5 + (4-1) (1/6)
A(4) = 5 + (3) (1/6)
A(4) = 5 + 3/6 = 5 3/6 = 5 1/2 (simplifying)
Tenth term:
A(10) = 5 + (10-1) (1/6)
A(10) = 5 + (9) (1/6)
A (10) = 5 + 9/6 = 6 3/6 = 6 1/2 (simplifying)
if f(x)=3x-1 and g(x)= x+2, find (f-g)(x)
Answer:
Step-by-step explanation:
(f-g)(x) = f(x)- g(x)
= 3x - 1 - ( x + 2)
=3x - 1 - x - 2
= 2x - 3
(-10, -10) and (-2, -3) find the slope.
The point P(2, 5) is reflected over the x-axis. What are the coordinates of the resulting point, P′?
Answer:
(2,-5)
Step-by-step explanation:
P(2,5)
(x,y)
Reflection over x-axis so the x coordinate stays the same while the y coordinate changes from a positive to a negative.
The point P(2, 5) reflected over the x-axis will have coordinates (2, -5), as the x-coordinate remains unchanged and the y-coordinate becomes negative.
Explanation:When the point P(2, 5) is reflected over the x-axis, the x-coordinate remains the same while the y-coordinate changes sign. Therefore, the coordinates of the resulting point, P', after reflection would be (2, -5). This is because reflecting over the x-axis means that we keep the horizontal position of the point the same (same x-coordinate), but flip the vertical position (change the sign of the y-coordinate).
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Question 4:
Gregory is x years old. Daisy is 2 years older than Gregory. The sum of their ages is 40.
(a) Form an equation in terms of x.
(b) Solve the equation and work out Gregory's and Daisy's ages.
gregory is 19 years old and daisy is 21 because 21 is two more that 19 but 19 +21=40
The correct answer is:
Gregory is 19 years old and daisy is 21
Applying linear equation
Let,
Age of Gregory = x years
Age of Daisy = (x+2) years
An equation in term of x
x + (x+2) = 40
2x + 2 = 40
2x = 40 - 2
x = [tex]\frac{38}{2}[/tex]
x = 19
∵ 19+21=40
⇒ Gregory is 19 years old
⇒ daisy is 21 years old
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Tricia saved money, but the amount she saved didn't meet both her emergency needs and savings for her goal. Which of these would be best for tricia to do next
Answer:
Look at her flexible expenses and prioritize
Step-by-step explanation:
Take the flexible-expense section of your budget and list the categories in the order of their importance to you.
The best option for Tricia would be look at her flexible expenses and prioritize. The correct option is d.
What is budgeting?Budgeting is the process of developing a financial plan. It entails assessing your income and expenses and deciding how to allocate your resources.
Examine her variable expenses and prioritize. Tricia needs to re-evaluate her budget and see where she can cut costs to save more money for her emergency needs and long-term savings goals.
By examining and prioritizing her flexible expenses, she can identify areas where she can cut back on spending and redirect those funds to her savings goals.
Tricia must avoid incurring additional debt by using a credit card and must continue to cover her basic needs, such as food, by budgeting appropriately.
Thus, the correct option is d.
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Your question seems incomplete, the probable complete question is:
Tricia saved money, but the amount she saved didn't meet both her emergency needs and savings for her goal. Which of these would be BEST for Tricia to do next?
a.) Delete her food budget
b.) Incur more debt and use a credit card
c.) Spend more money on flexible expenses
d.) Look at her flexible expenses and prioritize
Y=2/3x+3
x=-2
-2, -15/2
-2, 5/3
-2,11/6
-2,13/3
Answer:
[tex](-2,\frac{5}{3})[/tex]
Step-by-step explanation:
[tex]Given\ y=\frac{2}{3}x+3,\ and\ x=-2\\\\Substitute\ the\ value\ of\ x\\\\y=\frac{2}{3}\times (-2)+3\\\\y=-\frac{4}{3}+3\\\\y=\frac{-4+9}{3}\\\\y=\frac{5}{3}\\\\Hence\ (-2,\frac{5}{3})\ satisfies\ the\ equation.[/tex]
What is the answer to 2(x+2)+2(x+4)=28 ?
Answer:
x=4
Step-by-step explanation:
2(x+2)+2(x+4)=28
Simplify the equation
2x+4+2x+8=28
4x+12=28
4x=16
x=4
D={[x, f(x)]: (-1,3), (0, 2), (1, 3), (2, 6), (3, 11)]
Write the rule for f(x).
Answer:
f(x) = x² +2
Step-by-step explanation:
x-values are evenly spaced, and y-values decrease to a minimum of 2, then increase again. First differences are -1, 1, 3, 5, and second differences are constant at 2. This means that a 2nd degree polynomial can be used for the rule.
The minimum of f(x) occurs at x=0, so there is no horizontal shift of the vertex of the quadratic function. f(1) -f(0) = 1, so the vertical scale factor for the quadratic is 1.
The quadratic with a vertex of (0, 2) and a vertical scale factor of 1 is ...
f(x) = 1·(x -0)² +2
f(x) = x² +2 . . . . . . simplified
_____
Comment on differences
"First differences" are the differences between successive "y" values when the "x" values are evenly spaced. Here, they are 2-3 = -1, 3-2 = 1, 6-3 = 3, 11-6 = 5. These are not constant, so the function is not a linear function.
"Second differences" are the differences between successive first differences. Here, they are 1-(-1) = 2, 3-1 = 2, 5-3 = 2. These are constant, so the function is a quadratic (2nd-degree). When n-th differences are constant, the sequence can be modeled by a polynomial of degree n.
__
Comment on determining the rule
Once you know the rule is 2nd-degree, there are a number of ways you can find out what it is. One way is to write it as ...
f(x) = ax^2 + bx + c
and fill in three different values for x and f(x). This will give you three linear equations in a, b, and c, which can be solved by any of the usual means for solving systems of linear equations.
Fortunately, this set of data includes the vertex of the function, making it easy to start with the vertex form:
f(x) = a(x -h)^2 +k
where (h, k) is the vertex (minimum, in this case), and "a" is the vertical scale factor. The value of "a" is easily determined as being the difference between f(h+1) and f(h). Here, h=0, so that is f(1) -f(0) = 3-2 = 1.
Answer:
x² +2
Step-by-step explanation:
The town of new London uses about 2,750,000 gallons of water each month. If the population of new London is approximately 61,000, which of the following provides the best estimate of the number of gallons of water used per person each month?
45 gallons of water used per person each month
Solution:
Given that,
The town of new London uses about 2,750,000 gallons of water each month
The population of new London is approximately 61,000
To find: Number of gallons of water used per person each month
From given,
Total gallons of water each month = 2750000
Population = 61000
Therefore,
[tex]Gallons\ of\ water\ per\ person = \frac{\text{Total gallons of water each month}}{population}[/tex]
[tex]Gallons\ of\ water\ per\ person = \frac{2750000}{61000}\\\\Gallons\ of\ water\ per\ person = \frac{2750}{61}\\\\Gallons\ of\ water\ per\ person =45.08 \approx 45[/tex]
Thus 45 gallons of water used per person each month
A game designer must decide how to color five buildings that are in a row. Using only the colors yellow, green, red, and blue, each building must be painted with exactly one color. Any two neighboring buildings must be different colors, and the first, third, and fifth buildings must be different colors. How many ways are there to paint the five buildings?
Answer:
The total of ways the buildings can be painted are = 4 [tex]\times[/tex] 3 [tex]\times[/tex] 2 [tex]\times[/tex] 2 [tex]\times[/tex] 1 = 48 ways.
Step-by-step explanation:
i) color five buildings that are in a row.
ii) any two neighboring buildings must be different colors
iii) the first third and fifth buildings must be different colors.
iv) the number of ways to paint the fist building are 4.
v) the number of ways to paint the second building are 3.
vi) the number of ways to paint the third building are 2.
vii) the number of ways to paint the fourth building are 2.
viii) the number of ways to paint the last building are 1.
ix) therefore the total of ways the buildings can be painted are
= 4 [tex]\times[/tex] 3 [tex]\times[/tex] 2 [tex]\times[/tex] 2 [tex]\times[/tex] 1 = 48 ways.
Answer:
84
Step-by-step explanation:
we can split it into 2 cases: 1 case is when you choose the last building first and the second case is when you choose it last: so it is 4x2x2x3 for the first case and 4x3x3x1 for the last. So it’s 36+48=84 total cases.
The product of two numbers is a ______ of both numbers
Step-by-step explanation:
Given,
The product of two numbers = a
To find, the both numbers = ?
Let the two numbers = x
∴ x × x = a
⇒ [tex]x^{2}[/tex] = a
⇒ [tex]x^{2} =\sqrt{a}^2[/tex]
Comparing the powers, we get
⇒ x = [tex]\sqrt{a}[/tex]
∴ First number = [tex]\sqrt{a}[/tex] and Second number = [tex]\sqrt{a}[/tex]
Thus, the product of two numbers is a, [tex]\sqrt{a}[/tex] of both numbers.
Consider the diagram below. which of the following represents the values x,y and z?
Answer:
[tex]x=4\sqrt{6}\ units[/tex]
[tex]y=4\sqrt{2}\ units[/tex]
[tex]z=4\sqrt{3}\ units[/tex]
Step-by-step explanation:
The picture of the question in the attached figure
step 1
In the right triangle ABD
Applying the Pythagorean Theorem
[tex]x^2=y^2+(12-4)^2[/tex]
[tex]x^2=y^2+64[/tex]
[tex]y^2=x^2-64[/tex] ----> equation A
step 2
In the right triangle BDC
Applying the Pythagorean Theorem
[tex]z^2=y^2+4^2[/tex]
[tex]z^2=y^2+16[/tex]
[tex]y^2=z^2-16[/tex] ----> equation B
step 3
In the right triangle ABC
Applying the Pythagorean Theorem
[tex]12^2=x^2+z^2[/tex]
[tex]144=x^2+z^2[/tex] ----> equation C
step 4
Equate equation A and equation B
[tex]x^2-64=z^2-16[/tex]
[tex]x^2=z^2+48[/tex] -----> equation D
step 5
substitute equation D in equation C
[tex]144=z^2+48+z^2[/tex]
solve for z
[tex]2z^2=144-48[/tex]
[tex]2z^2=96[/tex]
[tex]z^2=48[/tex]
[tex]z=\sqrt{48}\ units[/tex]
simplify
[tex]z=4\sqrt{3}\ units[/tex]
Find the value of x
[tex]x^2=z^2+48[/tex]
[tex]x^2=48+48=96[/tex]
[tex]x=\sqrt{96}\ units[/tex]
[tex]x=4\sqrt{6}\ units[/tex]
Find the value of y
[tex]y^2=z^2-16[/tex]
[tex]y^2=48-16[/tex]
[tex]y^2=32[/tex]
[tex]y=\sqrt{32}\ units[/tex]
[tex]y=4\sqrt{2}\ units[/tex]