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pickupchik [31]
3 years ago
12

The distance s (in feet) covered by a car t sec after starting is given by the following function. s = −t3 + 11t2 + 20t (0 ≤ t ≤

6) Find a general expression for the car's acceleration at any time t (0 ≤ t ≤ 6). s ''(t) = Correct: Your answer is correct. At what time t does the car begin to decelerate? (Round your answer to one decimal place.) t = sec
Mathematics
1 answer:
VladimirAG [237]3 years ago
6 0

8.94

Answer:

Step-by-step explanation:

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Mr.Gomez built a deck .The deck had an area of 29 square meters. Which figure could represent the deck?
Dmitry_Shevchenko [17]

What are the options for the figures?

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Which answer is the best estimate of the correlation coefficient for the variables in the scatter plot?
Vesnalui [34]
Its Letter B -0.5

negative because its slope is negative (from left to right it's going downward)

so there are 2 negavite numbers in the choices, -0.5 and -0.95.

The nearer the value to 1 the less scatter it is. The farther the value to 1 (means nearer to 0) the more scatter it is. Because the plot in the picture is mostly scattered the value should be nearer to 0. It is negative 0.5.
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Read 2 more answers
What is this!!!!!!!!!!!!
Karo-lina-s [1.5K]

Answer:

MARK ME BRAINLIEST!! THANKS BOO!!!!!!!!!!!

Step-by-step explanation:

7 0
3 years ago
What is the value of (j+3k)(5)?<br><br> j(x) = (x + 4)^2; k(x) = 8 - x<br><br> (j + 3k)(5) =
jeyben [28]

Step-by-step explanation:

J=(x+4)²

K=(8-x)

X=5

=J+3k

=(x+4)(x+4)+3(8-x)

=(x²+8x+16+24-3x)

=25+25+40

=90

Alternatively:

J=(5+4)²

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3 0
3 years ago
A piece of electronic equipment is built with 3 cooling fans. The equipment will function only if at least 2 of the 3 fans are w
PolarNik [594]

Answer:

0.66608

Step-by-step explanation:

Equipment = 3 fans

Mortality = 0.098

We are required to find probability that equipment gets to work for 5years

The question says forces of mortality is constant and also equal to 0.098

To calculate p(x>5)

We will do this by calculating exponentially

e^-0.098x5

= 0.612626394

Probability that at least 2 fans out of 3 are working

3(0.612626394)²+(1-0.612626394)+(0.612626394)³

= 1.1259333x0.3873736+0.2299255

= 0.6660823470

This is approximately

<u>0.6608</u>

this is the probability that the equipment will work for at least 5years

8 0
3 years ago
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