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Gnom [1K]
4 years ago
15

-9x2 + 13x – 1=0 I need 3 answers, pls help me:)

Mathematics
1 answer:
kifflom [539]4 years ago
5 0

The answer to this question is x = 13/9 = 1.444

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A cylinder has a volume of 320 cu in. and a height of 5". Find the radius of the cylinder. 10 in. 8 in. √8 in.
Reptile [31]
The correct question is
<span>A cylinder has a volume of 320 pi in</span>³<span>. and a height of 5". Find the radius of the cylinder</span>
we know that

[volume of a cylinder]=pi*r²*h----> r²=volume/(pi*h)
r=√[volume/(pi*h)]
volume=320*pi in³
h=5 in
so
r=√[320*pi/(pi*5)]--------> r=8 in

the answer is 
8 in
8 0
4 years ago
A home-based sign company uses this function to model its monthly profit, where x is the price of each sign it sells. what is th
SpyIntel [72]

<u>The </u><u>profit </u><u>made is </u><u>$4,460.</u>

What is a profit in business?

  • In its simplest form, it's the amount left after subtracting your total expenses from your total revenue.
  • The money remaining, your profits, can either be kept in the business and re-invested to finance future growth, or distributed as a draw or dividends to stakeholders.

The profit model, P(x) = -10x² + 498x - 1,500

Where, x = price per sign sold

If the price per sign sold is $20. Hence, x = $20

The profit made can be calculated thus :

Put x = 20 in the profit function :

P(20) = -10(20)² + 498(20) - 1,500

P(20) = - 10(400) + 9960 - 1500

P(20) = - 4000 + 9960 - 1500

P(20) = $4,460

The profit made is $4,460

Learn more about profit

brainly.com/question/15036999

#SPJ4

4 0
2 years ago
A square patio has an area of 200 square feet how long is each side of the patio to the nearest 10th
shtirl [24]
The area of a square is equal to length times width, which are the same.

200= x^2

Root both sides

x= root 200
x= approx. 14.1

Final answer: 14.1 ft
5 0
3 years ago
7 pencils cost £5.95. <br> How much do 11 pencils cost?
yuradex [85]

Answer:

11 pencils cost £9.35.

Step-by-step explanation:

Given;

7 pencils = £5.95

1 pencil = 5.95 ÷ 7

= £0.85

Now,

11 pencils = 11 × 0.85

= £9.35

5 0
3 years ago
Read 2 more answers
What is the slope?
Andrei [34K]
Select any two coordinates from the graph such as (7,4) and (9,7). The formula of slope is rise/run or y2-y1/x2-x1
(4-7/(7-9)=(-3)/(-2)= 1.5
The slope of the graph is 1.5!
6 0
4 years ago
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