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Anvisha [2.4K]
3 years ago
9

Calculate the average speed of the car in m/s

Mathematics
1 answer:
Alina [70]3 years ago
3 0

Answer:

14.4 m/s

Step-by-step explanation:

The speed of the car can be found by dividing the distance by the time. The distance is 0.8m 9 times or 0.8(9)=7.2 meters and the time is 0.5 seconds

s=\frac{d}{t} \\s=\frac{7.2}{0.5} \\s=14.4

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8 to the power of 8 times 5 to the power of 8 simplify the expression
qwelly [4]
40 to the power of 8
4 0
3 years ago
When an object is thrown upwards with a speed of 64 ft/sec, its height above the ground is given by the function h(t)=−16t2+64t
Svet_ta [14]

Answer:

The object will reach its highest point 0.5 seconds after it has been thrown.

Step-by-step explanation:

The object reaches its maximum height when velocity is equal to zero, the velocity is the derivative of function height. That is:

v(t) = \frac{d}{dt}h(t) (1)

Where v(t) is the velocity of the object at time t, in feet per seconds.

If we know that h(t) =-16\cdot t^{2}+64\cdot t and v(t) = 0\,\frac{ft}{s}, then the time when object reaches its highest point is:

v(t) = -32\cdot t+64

-32\cdot t + 64 = 0

t = 0.5\,s

The object will reach its highest point 0.5 seconds after it has been thrown.

3 0
2 years ago
Tony’s tattoo parlor sold 389 tattoos this month. 43 of those tattoos where arm tattoos. What is the reasonable estimate of the
qaws [65]

Answer:89%

Step-by-step explanation: its the probability that they will get anything other than an arm tattoo. So you subtract 43 from 389 and it gives you 346,

346/389 x 100% = 88.9%

4 0
3 years ago
Read 2 more answers
What is the final elevation if a bird starts at 20 m and changes 16 m?
charle [14.2K]

Answer:

36 meters

Step-by-step explanation:

The bird starts at 20 and (assuming it goes up) increases by 16 meters. You have to add to get 36. However, if the bird flies 16 meters down, the answer would be four meters. The answer 36 is assuming the bird flies upward.

5 0
3 years ago
Hii guys I need help with this I took a screenshot of it.
eduard

Answer:

x <= 9

Step-by-step explanation:

x -15 <= -6

+15. +15

x <=9

8 0
2 years ago
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