Answer:
He needs 7 more consecutive successful first serves to raise his first serve percentage to 60%.
Step-by-step explanation:
After n consecutive serves, his total number of serves is going to be n+8, since he has already served 8 times. In the best case, his number of successful first serves is n+2.
His percentage of succesful first serves is the division of the number of succesful first serves divided by the total number of serves. So
We want 
. So
He needs 7 more consecutive successful first serves to raise his first serve percentage to 60%.
Answer:
The transformation is (x-2, y-1).
Step-by-step explanation:
Every point of this shape moved 2 to the left and one down. This gives us the following transformation of (x-2, y-1).
Answer:
57+28x
Step-by-step explanation:
only this
i don't know you 4x2 or 4x+2
54+x=12+3x
X=21 =number of classes
Total amount she will pay is $75
Answer:
The answer is
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Step-by-step explanation:
x² + x - 5 = 0
Using the quadratic formula
That's
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From the question
a = 1 , b = 1 , c = - 5
Substitute the values into the above formula and solve
We have
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We have the final answer as
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Hope this helps you
