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3 years ago

8

100 meters, 9.69 seconds, usain bolt jamaica

1 answer:

uranmaximum [27]3 years ago

6 0

10.31991744 meters per second

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A ball is thrown upward from the top of a building. The function below shows the height of the ball in relation to sea level, f(

Marina86 [1]

$f(t) = -16t^{2} +48t + 100$
Average rate of change from t = 3 seconds to t = 5 seconds = $\frac{f(5)-f(3)}{5-3} = \frac{(-16( 5^{2})+48(5)+100)-(-16( 3^{2})+48(3)+100 }{2}=$ $\frac{(-16(25)+240+100)-(-16(9)+144+100)}{2} = \frac{(-400+240+100)-(-144+144+100)}{2}=$ $\frac{-60-100}{2} = \frac{-160}{2} = -80$

5 0

3 years ago

Find the gradient and the intercept shown by the straight line 2x + 3y = 6

sveta [45]

Answer:

$\sf gradient =\dfrac{-2}{3}\\\\ y -intercept = 2$

Step-by-step explanation:

<h2>Equation of the line in slope intercept form:</h2>

$\sf \boxed{\bf y = mx +b}$

Here m is the slope or gradient and b is the y-intercept.

Write the given equation in slope-intercept form.

2x + 3y = 6

3y = -2x + 6

$\sf y =\dfrac{-2}{3}x +\dfrac{6}{3}\\\\ y = \dfrac{-2}{3}x + 2$

$\sf gradient =\dfrac{-2}{3}\\\\ y -intercept = 2$

6 0

1 year ago

Read 2 more answers

Solve for x<br> 4(x + 1) = –28

lora16 [44]

Answer:

X=-8

Step-by-step explanation:

4x+4=-32

Add -4 to both sides

4x=-32

decide both sides by 4

x=-8

4 0

2 years ago

What is y over 3 (y/3) = 12

PSYCHO15rus [73]

Answer:

so what i would like to do is what is 12 divid by 3 and when u get ur answer that it what the y is

7 0

3 years ago

Read 2 more answers

WILL GIVE BRAINLIST FOR CORRECT ANSWER (NO LINKS)

yuradex [85]

Answer:

30 in.

Step-by-step explanation:

You have to add the current length of the board with the length that was cut off.

18 + 12 = 30

6 0

3 years ago