Solve the problem.The data lists braking distances D in feet for cars traveling at x miles per hour on dry, level pavement. Find a function given by D(x) = ax2 that models these data. 
A. D(x) = 18x2
B. D(x) = 
x2
C. D(x) = 
x2
D. D(x) = 9x2
Answer: B
Mathematics
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Use mathematical induction to prove the following.4n > n
What will be an ideal response?
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Solve by using addition, subtraction, multiplication, or division as needed.Akira's car used 21 gallons of gasoline when he drove it 525 miles. How many miles per gallon did it get?
A. 25 miles per gallon B. 21 miles per gallon C. 53 miles per gallon D. 504 miles per gallon
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Find the sum.1 - 
+ 
- 
+ . . .
A. 9
B. 
C. 
D. 8
Mathematics
Evaluate the expression for the given replacement values.
for x = -70, y = -1
A. -71 B. 70 C. -70 D. 71
Mathematics