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Scrat [10]
4 years ago
9

the function d(t)=15t^2-100t gives the distance a car going a certain speed will skid in t seconds. find the time it would take

for the car to skid 170 feet
Mathematics
2 answers:
Blizzard [7]4 years ago
7 0
15t^2 - 100t = 170
15t^2 - 100t - 170 = 0

3t^2 - 20t - 34 = 0

solve for t

t  =  [-(-20) +/- sqrt( 400 - 4*3 *(-34) ] / 6

= 8.07 seconds


Oksana_A [137]4 years ago
7 0
Equate 170 feet to d(t) = 15t^2 - 100t.  Rearrange these 3 terms in descending order according to the powers of t.  Then solve for t.  Use the quadratic formula or some other suitable approach.
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11/24+w=11/12 I need help​
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Answer:

w = 11/24

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Question 1
Vikki [24]

Answer:

(B)15,36,39

Step-by-step explanation:

To determine which of the line segments could create a Right Triangle, we check if it satisfies the Pythagoras Theorem, taking the longest part to be the Hypotenuse in all cases.

By Pythagoras Theorem: Hypotenuse^2=Opposite^2+Adjacent^2

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4 0
4 years ago
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