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2 years ago

How to find a factor pls give good example

Mathematics

1 answer:

solong [7]2 years ago

8 0

Answer:

example, 3 and 6 are factors of 12 because 12 ÷ 3 = 4 exactly and 12 ÷ 6 = 2 exactly. The other factors of 12 are 1, 2, 4, and 12.

Step-by-step explanation:

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If a car is traveling 75 miles per hour, how many feet will it travel in 10 seconds?

Alekssandra [29.7K]

Answer:

Step-by-step explanation:

speed=75 miles per hour

$speed=\frac{75 \times 1760 \times 3 }{3600 } =110 ~ft~/ ~s$

distance covered in 10 seconds=110×10=1100 ft

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3 years ago

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Given the function, f(x) = 2x2 - x + 1, calculate the average rate of change of the function from x = 1 to x = 3.

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3 years ago

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Wages. JoAnn works in the publicity office at the state university. She is paid $10 an hour for the first 35 hours she works eac

rosijanka [135]

Since Joann receives $10 per hour for the first 35 hours, so she receives $350 (35 times $10) before she starts receiving extra hours.

Since she received $515, we know that she worked extra hours.

Let's use the variable x to represent the number of extra hours worked.

So we can write the following equation for the total payment received:

$\begin{gathered} 10\cdot35+15\cdot x=515 \\ 350+15x=515 \\ 15x=515-350 \\ 15x=165 \\ x=11 \end{gathered}$

She worked 11 extra hours. Adding this to the 35 regular hours, so she worked for 46 hours.

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1 year ago

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A cooling tower for a nuclear reactor is to be constructed in the shape of a hyperboloid of one sheet. The diameter at the base

timurjin [86]

Answer:

Step-by-step explanation:

Equation for a hyperboloid of one sheet, with center at the origen and axis along z-axis is:

(x/a)² + (y/b)² - (z/c)² = 1 (1)

We have to find a , b, and c

We can express equation (1)

(x/a)² + (y/b)² = (z/c)² + 1 (2)

Now if we cut the hyperboloid with planes parallel to xy plane we get for z = k ( K = 1 , 2 , 3 and so on ) circles of different radius

(x/a)² + (y/b)² = (k/c)² + 1

at z = k = 0 at the base of the hyperboloid d = 300 or r = 150 m

we have

(x/a)² + (y/b)² = 1

x² + y² = a² a² = (150)² a = b = 150

and x² + y² = (150)²

Now the other condition is at 200 m above the base d = 500 m r = 250 m minimum diameter then in equation (2) we have:

(x/a)² + (y/b)² = (z/c)² + 1

(1/a)² [ x² + y² ] = (z/c)² + 1

but x² + y² = r² and in this case r = 250 m then

(250)²/(150)² = (z/c)² + 1 ⇒ (62500/ 22500) = (200/c)² + 1

2,78 = 40000/c² + 1

2.78c² = 40000 + c²

1.78c² = 40000

c² = 40000/1.78

c² = 22471.91

c = 149,91

Then we finally have the equation:

x²/(150)² + y² /(150)² - z²/149,91 = 1

7 0

3 years ago

How to find a factor pls give good example​

How to find a factor pls give good example