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Novay_Z [31]
3 years ago
8

Can someone please help me (25 points)

Mathematics
1 answer:
lora16 [44]3 years ago
6 0

Answer:

V=343\,\,cm^3

Step-by-step explanation:

Recall that fractional exponents are other form of representing roots.

In our case, the formula for the volume of the cube in terms of area of a face, is also written as:

V=A^\frac{3}{2} =(\sqrt{A} )^3

which for the case of a cube with face area of 49 cm^2 becomes:

V=(\sqrt{49} )^3=7^3=343\,\,cm^3

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Solve for the unknown by using the additive inverse. Type the FULL answer in the box, without using any spaces (ex., X=5).
zavuch27 [327]

Answer:

X=16

Step-by-step explanation:

10x-8=9x+8

First you have to simplify.

10x-9x=1x

So now the equation looks like this

x-8=8

Now you have to get x by itself

-8+8=0 and we have to do the same thing on both sides of the equal sign 8+8=16

The equation now looks like this x=16

And that's your answer

3 0
3 years ago
A construction crew is lengthening a road. The road started with a length of 53 miles, and the crew is adding 3 miles to the roa
Sedbober [7]

Answer:

a). L=53+3 D.... equation

b). Total length of the road after the crew has worked 31 days=146 miles

Step-by-step explanation:

Step 1

Find an expression for calculating the total length of a the road as follows;

L=F+(M×D)

where;

L=total length of the road in miles

F=starting length of the road in miles

M=number of miles per day added

D=number of days the crew has worked

In our case;

L=unknown

F=53 miles

M=3 miles per day

D=unknown

L=53+(3×D)

L=53+3 D.... equation

Solve for L when D=31 days

L=53+(3×31)

L=53+93=146

Total length of the road after the crew has worked 31 days=146 miles

7 0
4 years ago
Read 2 more answers
The original piece of a book is $25. the book is on sale for 30% off. what percent are we paying? what is the price you will pay
SSSSS [86.1K]

Answer:

$17.50

Step-by-step explanation:

multiply 25 and 30, the divide the answer by 100, the deduct that result from the original price

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What is 448 28% of?<br> Then, what is 24% f that number?
Tanzania [10]
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4 0
4 years ago
Giving brainliest if answered correctly!
Ksju [112]

Answer:

hello! you didnt put the dimensions. i would love to help but i dont have the info. you can comment the infor below!

5 0
3 years ago
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