Answer:
0.448 seconds
Step-by-step explanation:
d = -16t² -4t + 412
find t when d = 407
substituting d = 407 into the equation:
407 = -16t² -4t + 412 (subtract 407 from both sides)
-16t² -4t + 412 - 407 = 0
-16t² -4t + 5 = 0 (multiply both sides by -1)
16t² + 4t - 5 = 0
solving using your method of choice (i.e completing the square or using the quadratic equation), you will end up with
t = (-1/8) (1 + √21)= -0.70 seconds (not possible because time cannot be negative)
or
t = (-1/8) (1 -√21) = 0.448 seconds (answer)
Answer:
117
Step-by-step explanation:
b1+b2÷2×h is the formula.
Just fill in the formula with the numbers you have.
12+14=26
26÷2=13
13×9=117
Maximum number of caps that Kevin can buy is 10.
Solution:
Total money for shopping = $320
Amount spent for video game = $156
Remaining amount that Kevin had = $320 – $156
= $164
Cost of each cap including tax = $15



Maximum number of caps that Kevin can buy is 10.
Answer: Yes!
Step-by-step explanation:
You correctly answered!