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madam [21]
3 years ago
11

I want the answer to this , zoom in if you can't see well

Mathematics
1 answer:
galben [10]3 years ago
3 0

We are going to need to know the formula for the lateral surface area and volume of a cylinder in order to find our answers. Below are the equations:

A_L = 2 \pi r h

V = \pi r^2 h

  • h is the height
  • r is the radius

Using these formulas, we can solve these problems.

A_L = 2 (3.14)(48.9) (84.3) \approx \boxed{25887.856}

V = (3.14) (48.9)^2 (84.3) \approx \boxed{632958.069}

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Dan earns £9.80 per hour how much will I earn for eight hours work
Andrews [41]

Answer:

£78.4

Step-by-step explanation:

Since he earns £9.80 per hour, we multiply this by how many hours there are. So £9.80 times 8 is £78.4. I hope this helps!

6 0
2 years ago
What is the solution of \sqrt(2x+4)=16? <br> x = 6 <br> x = 72 <br> x = 126 <br> no solution
Genrish500 [490]
√(2x+4)=16  square both sides

2x+4=256  subtract 4 from both sides

2x=252  divide both sides by 2

x=126
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R + 4 &gt; 8; r =2 is a solution
tiny-mole [99]

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What is a common denominator for 1/6 and 3/5
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Step-by-step explanation:

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Read 2 more answers
The DingGnat Doorknob Company intends to sell a new line of square doorknobs. The price-demand function is p ( x ) = 48.5 − 0.09
pickupchik [31]

Answer:

a. 135 doorknobs

b. R(x) = 48.5x-0.09 x^2

Step-by-step explanation:

The price-demand function is:

p(x) = 48.5-0.09 x

a. At a price of $36.30, the number of doorknobs sold, 'x' is:

p(x) = 48.5-0.09 x\\36.30 = 48.5-0.09 x\\x= \frac{48.5-36.30}{0.09}\\x=135.55

Rounding it down to the nearest whole unit, the company can sell 135 doorknobs at $36.30

b. Revenue is the product of the price, p(x), by the demand, x. Therefore, the Revenue function is:

R(x) = x*p(x)=x(48.5-0.09 x)\\R(x) = 48.5x-0.09 x^2

5 0
3 years ago
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