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3 years ago

PLS HELP!!

Mathematics

1 answer:

irakobra [83]3 years ago

3 0

Answer:

3375

Step-by-step explanation:

The formula for volume is

volume = length x height x width

or in simpler terms (only works for cubes i think)

v = a^3

so we know that the side is 15cm long, so we substitute that back into the equation, so,

3375 = 15 x 15 x 15

3375 = 15^3

I hope that this helps you out :)

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Are shape I and shape Il similar? If so, give the dilation that proves they are similar. If not, explain why the shapes are not

joja [24]

Answer:

They are similar.

Step-by-step explanation:

They are similar because, the top triangle has one more square to the height as well as the width. If you take one square away from the height and width the top triangle is the same size as the bottom triangle.

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3 years ago

If an exterior angle of a regular polygon is 21.2Â°, how many sides does the polygon have?

sesenic [268]

360 divided by x = 21.2 recurring
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Which rounds up to 17

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3 years ago

What is the equation of a line that passes through the points (0, 5) and (4, 8)?

Andrew [12]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope - intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 5) and (x₂, y₂ ) = (4, 8)

m = $\frac{8-5}{4-0}$ = $\frac{3}{4}$

Note the line crosses the y- axis at (0, 5) ⇒ c = 5

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6 0

3 years ago

A rectangular pool 6 meters by 4 meters is surrounded by a walkway of width x meters. At what value of x will the area of the wa

steposvetlana [31]

Answer:

x=1 meter

Step-by-step explanation:

step 1

Find the area of the rectangular pool

$A=LW$

we have

$L=6\ m\\W=4\ m$

substitute

$A=6(4)=24\ m^2$

step 2

Find the area of rectangular pool including the area of the walkway

Let

x ----> the width of the walkway

we have

$L=(6+2x)\ m\\W=(4+2x)\ m$

substitute

$A=(6+2x)(4+2x)$

step 3

Find the area of the walkway

To find out the area of the walkway subtract the area of the pool from the area of rectangular pool including the area of the walkway

$A=(6+2x)(4+2x)-24$

step 4

Find the value of x if the area of the walkway equal the area of the pool

$(6+2x)(4+2x)-24=24$

Solve the quadratic equation by graphing

The solution is x=1 meter

see the attached figure

3 0

3 years ago

Read 2 more answers

Helpp Which statement about the inequality `2(1)/(5) < 2(3)/(5)` is true?

lara31 [8.8K]

We are given inequality 2(1)/(5) < 2(3)/(5).

This can be read as : 2(1)/(5) is less than 2(3)/(5).

Therefore, 2(3)/(5) is vertically up than 2(1)/(5).

That is On the vertical number line 2(3)/(5) is up and 2(1)/(5) is located below.

Therefore, correct option is B option.

<h3>B. On the vertical number line, `2(3)/(5)` is located below `2(1)/(5)`.</h3>

All other statements are incorrect.

3 0

4 years ago