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IgorLugansk [536]
3 years ago
12

what pair of numbers with a sum of 15 has the greatest product? What pair has the least positive product?

Mathematics
1 answer:
stich3 [128]3 years ago
8 0
1×14=14
2×13=26
3×12=36
4×11=44
5×10=50
6×9=54
7×8=56
So these are the products of numbers which add up to 15. The highest product is 7×8=56 and the lowest product was 1×14=14.And that is your answer. Hope it helped!!
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<img src="https://tex.z-dn.net/?f=%20%5Cpi%20%20x%5E%7B2%7D%20" id="TexFormula1" title=" \pi x^{2} " alt=" \pi x^{2} " align="
ANEK [815]

The formule is about area of a circle.

\pi x^{2} = a

We need to solve the equation for x. Where x is the radius of the circle.

In order to solve it for x, we need isolate it for x on left side.

So, first we need to get rid pi from left side.

On dividing both sides by pi, we get

\frac{\pi x^2}\pi}=\frac{a}{\pi}

x^2=\frac{a}{\pi}

Taking square root on both sides, we get

\sqrt{x^2}=\sqrt{\frac{a}{\pi}}

x=\sqrt{\frac{a}{\pi}}


4 0
4 years ago
Ivan makes 8 dollars for each hour of work. Write an equation to represent his total pay p after working h hours.
Vlada [557]

Answer: p=8h

Hope this helped

Step-by-step explanation:

5 0
3 years ago
The table shows the data of a random sample of fish that were collected from and later released into a lake.
yan [13]
280 eels

92 + 56 + 52 = 200
eel = 56/200

 56    *5       x   
-----    =   --------
200   *5   1000
56(5) = 280 x = 280

56/200 = 7/25 
7/25 = 280/1000
6 0
3 years ago
An airplane descends 1.8 miles to an elevation of 6.75 miles. Find the elevation of the plane before its descent.
Mariana [72]

Answer: 8.55 miles

Step-by-step explanation:

Adding the totals given in the problem together:

1.8 miles + 6.75 miles = 8.55 miles.

Therefore, because we descended the plane and are looking for the previous height, we just add the descent to the elevation AFTER descent.

3 0
3 years ago
Which description is paired with its correct expression?
a_sh-v [17]

Answer:

D.

Step-by-step explanation:

Hi there! You’re correct.

Twice the difference of nine and a number squared would look like

2(9-n^2)

I hope this helped! :)

7 0
3 years ago
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