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3 years ago

11

I don’t know how to Do this

1 answer:

Debora [2.8K]3 years ago

4 0

Do What? What do you need help with??

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When you have a division problem, what do you do to the exponents?

spayn [35]

Answer:

you work out the exponents before you divide,

Step-by-step explanation:

8 0

3 years ago

The volume of this rectangular prism is 240 cubic centimeters. What is the surface area?

arlik [135]

2 (d(h+w) + h w) is the surface area

3 0

3 years ago

A rectangular pool is to be built on a lot that measures 20 m by 12 m. A wooden deck of uniform width, equal to the area of the

frutty [35]

The length and breadth(width) of the pool are

$l\approx15.7m\text{ and }b\approx7.7m$

Let

$l=\text{length of the side of the pool}\\b=\text{breadth of the pool side}\\w=\text{the width of the strip of deck surrounding the pool}$

From the question, we can build the following relationships

$l+2w=20\\b+2w=12$

subtracting to eliminate $w$ (we do not even need it!)

$l-b=8\\b=l-8$

we can also build another relationship from the question. Since the area of the strip equals the area of the pool:

$lb+lb=2lb=20\times 12\\lb=120$

We have two unknowns, $l$ and $b$ . Eliminate $b$

$lb=120\\l(l-8)=120\\l^2-8l-120=0$

If we solve the quadratic equation for $l$ , we get

$l=4+2\sqrt{34}\approx 15.7m$

and

$b=l-8\\b=(4+2\sqrt{34})-8\\b=2\sqrt{34}-4\approx7.7m$

The length and breadth(width) of the pool are

$l\approx15.7m\text{ and }b\approx7.7m$

Learn more about area here: brainly.com/question/1447350

7 0

2 years ago

What is the algebraic expression for: the quotient of 5 and y added to 3 is at least 5

xenn [34]

Answer:

3

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Pick the correct graph and equation pleasee!

laila [671]

Given:

Amount of flour in a bin = 30 cups

Flour required for each signature cake = $1\dfrac{1}{2}$ cups

To find:

The correct equation and graph for the given situation.

Solution:

Let F be the amount of flour in the bin and c be the number of signature cakes.

Flour required for each signature cake = $1\dfrac{1}{2}$ cups

Flour required for each signature cake = $1.5$ cups

Flour required for c signature cakes = $1.5c$ cups

Amount of flour in a bin is 30 cups and it is reduced by 1.5c cups. So, the amount of flour in the bin is:

$F=30-1.5c$

At $c=0$ , we get

$F=30-1.5(0)$

$F=30$

At $F=0$ , we get

$0=30-1.5c$

$1.5c=30$

$c=\dfrac{30}{1.5}$

$c=20$

Therefore, the required equation is $F=30-1.5c$ and the 4th graph is correct.

5 0

3 years ago