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dalvyx [7]
3 years ago
9

Please help me, I don't know what i'm doing.

Mathematics
1 answer:
telo118 [61]3 years ago
6 0
7.50 dollars worth sour straws
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PLEASE HELP ME IM SO CONFUSED The volume of a cube is x³ cubic units. The surface area of the cube is x³ square units. What is t
Tom [10]

Answer: The value of x is 6.

Step-by-step explanation:

TO find the volume of a cube you cube any side length. so if the side  length is 6.

6^3 = 216

To find the surface area of a cube you will square one of the side lengths and multiply it by 6.

so the side length is 6 and 6 squared is 36

36*6 = 216

3 0
4 years ago
3(-4n - 9) = 21 plc solve ​
erma4kov [3.2K]
<h3>Answer:</h3>

\huge{\boxed{n=-4}}

<h3>Explanation:</h3>

\begin{array}{cc}\begin{flushright}\text{Divide both sides of the equation by 3.}\end{flushright}&\begin{flushleft}-4n-9=7\end{flushleft}\\\begin{flushright}\text{Add 9 on both sides.}\end{flushright}&\begin{flushleft}-4n=16\end{flushleft}\\\begin{flushright}\text{Divide both sides by -4.}\end{flushrigh}&n=-4\end{array}

7 0
4 years ago
Read 2 more answers
Judy has a sugar cone and wants to know how many cubic inches of ice cream it will hold if it is filled completely to the top of
Romashka [77]
Recall that the equation to solve for the volume of a cone is 1/3 * area of base * h

Since we have the radius and the height of the cone, we can put these into an equation:

1/3 * π(1.5)^2 * 4.5
(π(1.5)^2 is because we need to use the equation of the area of a circle in order to find the area of the base)

Square the 1.5:
1/3 * 2.25π * 4.5

The value of π is 3.14, so input that value:
1/3 * 2.25(3.14) * 4.5

Multiply 2.25 and 3.14:
1/3 * 7.065 * 4.5

Multiply all the values (You should use a calculator for this last part, since doing this by hand is a bit impractical):

1/3 * 7.065 * 4.5 = 10.5975

The sugar cone must be filled with 10.5975 cubic inches of ice cream.
-T.B.

7 0
4 years ago
Solve for a<br><br> 3a+2&gt; 3a-6/3
RUDIKE [14]

Answer:

a>-2

Step-by-step explanation:

4 0
3 years ago
Give y=3x-5/x+6 Calculate y' and check the sign
jenyasd209 [6]

Answer:

x = -6

-18+4y=0 => 4y=18 =>y=18/4=9/2

Y=5

3x+20=0 => x=3x= -20=> x= -20/3

Step-by-step explanation:

8 0
3 years ago
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