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3 years ago

Find the perimeter and area of the figure.

Mathematics

1 answer:

iogann1982 [59]3 years ago

8 0

Answer:

perimeter of the figure =32 units

area of the figure=56 units²

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A machinist drilled a conical hole into a cube of metal as shown.

Mnenie [13.5K]

Answer:

512ft³

Step-by-step explanation:

If the cube its sides of all 8 feet, then the length, width, and height is 8 feet. Then, multiply 8 by 8 you get 64 and then multiply 64 by 8 to get 512.

7 0

2 years ago

A personal computer is bought for $2860. A down payment of $520 is made. The remainder of the cost is paid in 20 equal payments.

Zanzabum

Answer:

C.None of these

Step-by-step explanation:

atleast I think

3 0

3 years ago

Read 2 more answers

The length of a rectangle is three inches more than the width. the area of the rectangle is 180 inches. find the width of the re

ch4aika [34]

We have a rectangle with length L that is 3 inches more than the width W. Then we can write this as:

$L=W+3$

The area of the rectangle is 180 square inches.

We have to find the width W.

As the area is equal to the product of the length and the width, we can write this equation and solve for W as:

$\begin{gathered} A=180 \\ L\cdot W=180 \\ (W+3)\cdot W=180 \\ W^2+3W=180 \\ W^2+3W-180=0 \end{gathered}$

We have a quadratic equation. The roots of this equation will be the mathematical solutions.

We can find the roots using the quadratic formula:

$\begin{gathered} W=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ W=\frac{-3\pm\sqrt[]{3^2-4\cdot1\cdot(-180)}}{2\cdot1} \\ W=\frac{-3\pm\sqrt[]{9+720}}{2} \\ W=\frac{-3\pm\sqrt[]{729}}{2} \\ W=\frac{-3\pm27}{2} \\ W_1=\frac{-3-27}{2}=-\frac{30}{2}=-15 \\ W_2=\frac{-3+27}{2}=\frac{24}{2}=12 \end{gathered}$

The solutions are W = -15 and W = 12.

The first one is not valid, as W has to be greater than 0.

Then, the solution to our problem is W = 12 in.

Answer: the width is W = 12 inches.

6 0

1 year ago

2/3÷-4/5 what is two thirds divided by negative four fifths

RUDIKE [14]

I think that this is the resolution
2/3×5/-4 = 10/-12
hope this helps

6 0

3 years ago

Read 2 more answers

Angela has a cube with a length of one yard. Maya has a cube with a length of one meter. What do the two cubes have in common? L

Vlad1618 [11]

<h3><u>1) </u><u>Both cubes have approximately equal sides</u><u>.</u></h3><h3><u>2) The volume of both cubes is approximately equal .</u></h3>

Step-by-step explanation:

Here, let us assume there are two cubes A and B.

The side length of cube A = 1 yard

The side length of cube B = 1 meter

Now,as we know: 1 meter = 1.09361 yards ≈ 1 yard

So, we can say that, approximately, <u>both cubes have equal sides</u>.

Now, Volume of a Cube = (Side)³

Since, both cubes have approximately equal sides,

⇒Volume of cube A ≈ Volume of cube B

Hence, both cubes have approximately equal volume.

8 0

3 years ago