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Nikolay [14]
2 years ago
12

A gift box has the shape of a cube with an edge length of 4.5 in.

Mathematics
2 answers:
Gala2k [10]2 years ago
7 0

Answer:

The volume of cube is 91.125 in³.

Step-by-step explanation:

It is given that the shape of gift box is a cube.

The volume of a cube is

V=a\times a\times a

V=a^3

Where, a is the length of edge.

It is given that the length of edge is 4.5 inch. The volume of gift box is

V=(4.5)^3

V=91.125

Therefore the volume of cube is 91.125 in³.

Rzqust [24]2 years ago
5 0
4.5 x 4.5 = 20.25 x 4.5 = 91.125 in
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Factor 10b-25b^3 please answer asap
fredd [130]

Answer:

5b(2 - 5b²)

Step-by-step explanation:

Simply take out GCFs to factor out the expression:

Step 1: Factor out GCF of 5

5(2b - 5b³)

Step 2: Factor out GCF of <em>b</em>

5b(2 - 5b²)

We can't factor the quadratic any further so that is our final answer.

8 0
3 years ago
Let f(x)=7x^2-8. find f(a^2)
strojnjashka [21]

Answer:

\large\boxed{f(a^2)=7a^4-8}

Step-by-step explanation:

f(x)=7x^2-8\\\\f(a^2)\to \text{put}\ x=a^2\ \text{to the equation of the function}\ f:\\\\f(a^2)=7(a^2)^2-8\qquad\text{use}\ (a^n)^m=a^{nm}\\\\f(a^2)=7a^{2\cdot2}-8\\\\f(a^2)=7a^4-8

6 0
3 years ago
About 1.15 million people live in a circular region with a population density of about 18,075 people per square kilometer. Find
Tanzania [10]

Step 1

<u>Find the total area</u>

Total area=(1,150,000/18,075)=63.62 square kilometer

The area of a circle is equal to

A=\pi * r^{2} \\ 63.62= \pi * r^{2}\\r=\sqrt{(63.62/\pi)} \\r=4.5\ km

therefore

the answer is

4.5\ km

7 0
2 years ago
Which of the following is a valid conclusion based on the given argument?
Marysya12 [62]

Answer:

Given that x=5, when we substitute in 5 for 2x + 3 = 13, the equation will turn out to be true.

Step-by-step explanation:

2x + 3 = 13       x=5

2(5)+3=13

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13=13

6 0
2 years ago
Read 2 more answers
Which is it? , 30 points
goldenfox [79]

Answer:

It's choice B.

Step-by-step explanation:

Let's look the one you have chosen (A):

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x-2 / 7 = f(x) - 8

x- 2 = 7(f(x) - 8)

x = 7(f(x) - 8) + 2

The inverse)= 7(x - 8) + 2

So it's not A.

B.  f(x) = 5(x/4) - 3

5x / 4 = f(x) + 3

5x = 4(f(x) + 3)

x = 4(f(x) + 3 / 5

So the inverse is  4(x + 3) / 5

So it is B.

5 0
3 years ago
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