2 years ago

Find the proper answer

Mathematics

1 answer:

Temka [501]2 years ago

8 0

I think the answer is C

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an electrician needs to cut a 49 m piece of wire into two pieces so that one piece is 5 m longer than the other piece. What is t

kumpel [21]

8 would be the length of each piece of wire I think.

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3 years ago

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Two Dimensional Nets and Surface Area - Quiz - Level

Virty [35]

Answer:

$18\ ft^2$

Step-by-step explanation:

The complete question in the attached figure

we know that

The surface area of a cube is equal to the area of its 6 squares faces

The area of one square face is equal to

$A=b^2$

where

b is the length side of the square

we have

$b=1\ ft$

substitute

$A=(1)^2=1\ ft^2$ ---> area of one square face

Find the surface area of three cubes

Multiply the area of one square face by 6 (one cube has 6 faces) and then multiply the result by 3 (3 cubes)

$SA=3[6(1)]=18\ ft^2$

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2 years ago

Use the inverse of the function y = x2 − 18x to find the unknown values.

Lerok [7]

ANSWER

b=1, c=81, and d=9.

EXPLANATION

The given function is:

$y={x}^{2}-18x$

This function is the same as:

$y={(x - 9)}^{2}-81$

To find the inverse of this function, we interchange x and y.

$x={(y-9)}^{2}-81$

Solve for y:

$x+81={(y- 9)}^{2}$

Take square root of both sides:

$\pm \sqrt{x + 81}=y-9$

$y=\pm \sqrt{x + 81}+9$

Hence,

b=1, c=81, and d=9.

7 0

2 years ago

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If the floor of a square office is 225 square units, what is the perimeter of the office?

Makovka662 [10]

Square have 4 equal sides length = a

A = 255
A = a^2

255 = a^2 |sqrt
15 = a

P = 4a
P = 4*15 = 60

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2 years ago

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Martin used three wooden craft sticks in a sculpture design. The first stick was 9.545 millimeters wide. The second stick was 8.

grigory [225]

9.545 + 8.23 = 17.775 mm wide

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2 years ago

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