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faust18 [17]
3 years ago
12

In 2009, Usain Bolt set the world record for sprinting 100m in approximately 9 3/5 seconds. Find his average speed in meters per

second.
Mathematics
2 answers:
IRINA_888 [86]3 years ago
6 0

Answer:

10.41 seconds meters per second

Step-by-step explanation:

1. divide 5 by 3 you get 0.6

2. he ran 9.6 seconds

3. divide 100 by 9.6 seconds getting 10.41 meters per second

nekit [7.7K]3 years ago
6 0

Answer: 10 5/12 meters per seconds

Step-by-step explanation:

Hi, to answer this question we have to

Apply the formula:

Speed rate = distance / time

Replacing with the values given, we have to divide the distance (100m) by the time (9 3/5 ).

Mathematically speaking:

9 3/5 = (5x9)+3 /5 =48/5

100 / (48/5) =10.42 meters per second.

= or 10 5/12 meters per second

=or 125/12 meters per second

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goblinko [34]
Reflection rule in the x-axis:
g(x) = - f(x)

f(x) = 3x+12
g(x) = - f(x) = -3x-12

The correct choice is option (C)
8 0
3 years ago
Simplify the rational Expression <br>​
qaws [65]

Answer:

\frac{x^2+2x}{x-3}

Step-by-step explanation:

We need to factor out numerator and denominator in order to simplify the rational expression by cancelling  common factors.

Numerator :  x^3 - 4 x = x (x^2 - 4) = x (x - 2) (x + 2)

Denominator (factoring by grouping):

x^2 - 5 x + 6 = x^2 - 3 x - 2 x + 6 = x (x - 3) - 2 (x - 3) = (x - 3) (x - 2)

Then we can cancel out the common factor (x - 2) in both numerator and denominator, leading to:

x (x + 2) / (x - 3) = (x^2 + 2)/ (x-3)

\frac{x^2+2x}{x-3}

4 0
3 years ago
Solve for n.<br> n+ 1 = 4(n-8)<br> On=1<br> O n= 8<br> on = 11<br> On = 16
Lesechka [4]

Answer:

n = 11

Step-by-step explanation:

n+ 1 = 4(n-8)

<=> n + 1 = 4n - 4×8

<=> 4n - n = 1 + 4×8

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3 0
3 years ago
Find four consecutive even integers such that the sum of the second and fourth and integer is one half times the sum of the firs
Artyom0805 [142]
Okay lets create an eqn from that information

A first int, B second int, C third int, D fourth int.

B = A + 2
C = A + 4
D = A + 6
A is the smallest integer

B + D = 0.5 (A + C) 

Now lets substitute

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now lets dist

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2a + 8 = a + 2
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a = -6

B = -6 +2
B = -4
C = -6 + 4
C = -2
D = -6 + 6
D = 0

Now using B + D = 0.5(A + C)
-4 + 0 = 0.5(-6 + (-2))
-4 = 0.5 (-8)
-4 = -4

Correct 
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8 0
3 years ago
Adrianna has a court to play basketball with her friends.
Alex_Xolod [135]

Answer:

Hey there!

The area of a rectangle is the length times width.

Thus, we can write the equation, 600=30w.

Solving for the width, we get that the width is equal to 20 ft.

Let me know if this helps :)

6 0
3 years ago
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