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mariarad [96]
3 years ago
7

I NEED HELP PLEASE WILL MARK BRAINLIEST IF I CANNNNN

Mathematics
2 answers:
choli [55]3 years ago
8 0

Answer:153.9

Step-by-step explanation:

Advocard [28]3 years ago
6 0

Answer:

Step-by-step explanation:

formula:

pi * radius^2

so

22/7 * 7^2 = 154 cm^2

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P(k)=k/7+k^4+3<br> What is the coefficient of k?
vova2212 [387]

Answer:the coefficient of k is 1/7

Step-by-step explanation:

The given expression is

P(k)=k/7+k^4+3

The coefficient of k is the number before the term k. The number before the term, k is 1/7

4 0
3 years ago
which expressions represents a 20% discount off the price of an item that originally cost D dollars ​
Charra [1.4K]

Answer:

D - (D/5)

Step-by-step explanation:

Let's imagine that D equals 100 dollars -

Well, we know that to get 20% of an amount, we need to divide the amount by five. So let's do that -

100 / 5 = 20

We now know that 20% of 100 dollars is equal to 20 dollars. We have now finished the first part. On to the second part.

We now need to take away 20% of 100 dollars off of 100 dollars - this is the price of the item after the discount.

100 - 20 = 80 dollars.

We now fit in D instead of 100 dollars -

D - (D/5)

6 0
3 years ago
Read 2 more answers
A radio telescope array is in an unpopulated desert region. The array covers a rectangular area that is one fourth square kilome
kramer

Answer:

  3 km

Step-by-step explanation:

The area of a rectangle is given by the formula ...

  A = LW

Filling in the given information, we can solve for the length.

  1/4 = L·(1/12)

Multiplying by 12, we see that ...

  3 = L

The array is 3 kilometers long.

3 0
3 years ago
Find the slope<br> 5x - 2y = 10<br><br> M=_______
Eva8 [605]

Answer:

Slope is 5/2

Step-by-step explanation:

5x-2y=10

subtract 5x from both sides

-2y=-5x+10

Then you divide -2 on both sides

y=5/2x-5

Which will result 5/2 as the slope

6 0
3 years ago
Read 2 more answers
Please help
Airida [17]

no, it is constant for a while then changes at 90gallons

6 0
3 years ago
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