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bezimeni [28]
3 years ago
8

You and your friend race from point A to point C. You run from A to B and then from B to C. Your friend runs from A to D and the

n from D to C. You run at an average rate of 7.8 miles per hour and your friend runs at an average rate of 8.1 miles per hour. Is it possible to determine who wins the race?
Mathematics
1 answer:
beks73 [17]3 years ago
4 0

Answer:

  • Friend wins

Step-by-step explanation:

As per diagram, the distance AB + BC is same as AD + DC

Since the distance is same for both, the friend will win due to running at greater speed

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(7.9-5.1)x(0.2+0.8)=?
Aleks [24]


7.9-5.1=2.8 0.2+0.8=1    2.8  x  1=2.8

Hope I helped


4 0
4 years ago
Given: f(-x) = x - 7 and h(x) = 2x + 3
Nitella [24]

Answer:

if given f(-x)=x-7,  then f(h(x))=-2x-10

or  if given f(x)=x-7, then f(h(x))=2x-4

Step-by-step explanation:

if given f(-x)=x-7

f(-x)=x-7 => f(-(-x))=(-x)-7  =>f(x)= -x-7

f(h(x))=f(2x+3)= -(2x+3)-7 = -2x-3-7 = -2x-10

if given f(x)=x-7

f(h(x))=f(2x+3)=2x+3-7=2x-4

6 0
3 years ago
What is the slope of the line shown?
Mekhanik [1.2K]

Answer:

1/2

Step-by-step explanation:

basically just remember the basic rise over run!

the y intercept is -3 the rise is one and to run over the next exact point is 2

7 0
3 years ago
Read 2 more answers
Find the height of the flagpole to the nearest meter. <br> 40<br> 33<br> 20<br> 27
alex41 [277]

Answer:

<h2>40</h2>

Step-by-step explanation:

<h3>I think 40 because it's to long line</h3>

3 0
3 years ago
Will give brainiest. A ball is thrown from an initial height of 3 meters with an initial upward velocity of 20/ms . The ball's h
Anon25 [30]

We can complete the square to rewrite h(t) as

3+20t-5t^2=23-5(t-2)^2

Then solve for when h(t)=8:

23-5(t-2)^2=8\implies15=5(t-2)^2

\implies(t-2)^2=3

\implies t-2=\pm\sqrt3

\implies t=2\pm\sqrt3

\implies t\approx0.27\text{ or }t\approx3.73

8 0
3 years ago
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