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pav-90 [236]
3 years ago
14

What is the volume of the cube?

Mathematics
1 answer:
DENIUS [597]3 years ago
3 0

Answer:

d) 343 cm^3

Step-by-step explanation:

Because you are talking about volume of a cube, that means all sides are equal. The equation for volume is length x width x height. Since all sides of the cube are equal and you are given the height, 7 cm, you will need to multiply 7 three times. Your equation would be 7 x 7 x 7. Then, 7 x 7 is 49 and 49 x 7 is 343. Don't forget, because we are talking volume, to put the cubed. So, your answer is 343 cm^3.

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Find the surface area of the triangular prism. *
jekas [21]

Answer:

1032 yds

Step-by-step explanation:

Al =(a+b+c)h

5 0
3 years ago
Sqaure root of 5 (u-1)(u^5+u^4+u^3+u^2+u+1)
Anna71 [15]
GIVEN:

5(u - 1)( {u}^{5} + {u}^{4} + {u}^{3} + {u}^{2} + u + 1)

remember:

\sqrt{u} = {u}^{ \frac{1}{2} }

And

{u}^{n} \times {u}^{m} = {u}^{n + m}

SOLVE:

start by multiplying the factors:

5( ({u}^{6} + {u}^{5} + {u}^{4} + {u}^{3} + {u}^{2} + u ) - ( {u}^{5} + {u}^{4} + {u}^{3} + {u}^{2} + u + 1))

simplify by combing like terms. Most terms subtract off, leaving:

5( {u}^{6} - 1)

This can be factored, but it is not a perfect square, which is really what we need to take the square root.

5( {u}^{3} - 1)( {u}^{3} + 1)

I'm not exactly sure what form they want the answer in...

so taking the square root:

\sqrt{5( {u}^{6} - 1) } = {(5( {u}^{6} - 1))}^{ \frac{1}{2} }

so my best answer is:

{5}^{ \frac{1}{2} } \times {( {u}^{6} - 1)}^{ \frac{1}{2} }
or the more factored form:

{5}^{ \frac{1}{2} } { ({u}^{3} - 1)}^{ \frac{1}{2} } { ({u}^{3} + 1 )}^{ \frac{1}{2} }

I'm not sure how else to solve it. Taking the square root doesn't work out super well, so I left it in the most simple form I could.

sorry for not coming to a definitive answer!
7 0
3 years ago
What is the value of x in this triangle?
Dvinal [7]
X=10 the two triangles are the same size just one is scaled down by 1/2. Hope this helps
8 0
3 years ago
Korede and Zahir were comparing their money amounts. Korede had $4.05, and Zahir had $5.04. Who had more money?
RSB [31]

Answer:

Zahir.

Step-by-step explanation:

Zahir has 98p more money than Korede.

5 0
3 years ago
Read 2 more answers
Factorise x2 + 13x + 42
kirill [66]

Answer:

you can use the formula "<em>Cross method" </em>  in which the last number of the equation is the sum of 2 number multiplication that also sums the 2nd num of the equation.

so it becomes

(x +6)(x +7)

WHY?

Bcs when u multiply 6 x 7 = 42 ( the last number of the equation)

      when u sum 6 + 7 = 13 ( the 2nd number of the equation)

Hope this helps :)

8 0
3 years ago
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