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LuckyWell [14K]
3 years ago
7

Find f(4) please, I need help

Mathematics
1 answer:
mixer [17]3 years ago
7 0

Answer:

f(4) = 1

Step-by-step explanation:

f(4) = what?

So if we know that x, aka 4, is technicially f is greater then 2, so you can plug in x as 4. So that means 5(4) - 19 = 20 - 19 = 1, so f(4) = 1

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a ferris wheel rotates 9pi/8 radians prior to making a stop the total height of the ferris wheel is 246 ft how far around did th
Zinaida [17]

Answer:

ferris wheel travel approx = 434.72 ft

Step-by-step explanation:

given data

wheel rotates = 9pi/8 radians

total height of the ferris wheel =  246 ft

solution

we can say here that height of the ferris wheel is same as the diameter of the wheel

and wheel is circular in shape

so we get here first radius of wheel that is

radius = half of diameter    ..........................1

put here value and we get

radius = 0.5 × 246

radius = 123 ft

and

wheel travel distance = length of arc by a angle of wheel rotates

so here length of arc will be

arc length = radius × wheel rotates angle   .....................2

put here value and we get

arc length  = 123 × \frac{9\pi }{8}

arc length = 434.7178 ft

so ferris wheel travel approx = 434.72 ft

4 0
3 years ago
Solve the equation when x=40. This will show the ball’s height, in feet, when it reaches the goal post. Y=-0.1x^2+4x
maks197457 [2]

Answer:

0

Step-by-step explanation:

-0.1(40)^2+4(40)

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0

6 0
3 years ago
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Marianna [84]
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3 years ago
3. Sоlvе з+2У-1 and x-2y = 13. (D)<br>ху<br>ху​
sp2606 [1]

Answer:

The value of x and y for the given two linear equation is x = 7 , y = - 3

Step-by-step explanation:

Given two linear equation as :

x + 2 y - 1 = 0            

Or, x + 2 y = 1               ..........A

x - 2 y = 13                    ............B

Now, Solving both equations A and B

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Or, (x + x) + (2 y - 2 y) = 14

Or, 2 x + 0 = 14

Or, 2 x = 14

∴ x = \dfrac{14}{2}

i.e x = 7

Now, Put the value of x into eq A

So, 7 + 2 y = 1

Or, 2 y = 1 - 7

Or, 2 y = - 6

∴  y = \dfrac{- 6}{2}

i.e y = - 3

So, The value s of x = 7 and y = - 3

Hence, The value of x and y for the given two linear equation is x = 7 ,          y = - 3 Answer

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3 years ago
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Answer:

5

Step-by-step explanation:

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