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crimeas [40]
3 years ago
11

What is the best description of the acceleration of an object?

Mathematics
1 answer:
shtirl [24]3 years ago
7 0

Answer:

A car's velocity changes from 25 m/s to 20 m/s in 5 seconds.

Step-by-step explanation:

By definition, Acceleration is the rate of change of Velocity of an object.

I.e it is the( final velocity minus initial velocity ) ÷  by the time it took for the velocity to change.

If we observe the choices only one choice gives us all 3 components (final velocity, initial velocity, time taken for velocity to change), which is :

A car's velocity changes from 25 m/s to 20 m/s in 5 seconds.

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4. Entomologists introduce 20 of one
Lina20 [59]

Answer:

This number can be found using the Rule of 70, which describes the formula dt = 70 / r, where dt is the doubling time, and r is the annual rate of growth.

Step-by-step explanation:

24/6 = 4

20 x 2 = 40 x 2 = 80 x 2 = 160 x 2 = 320

20 ---> 320 in the first day.

Keep doing this equation. Multiply each day's end result by 2 four times for 9 more days.

8 0
4 years ago
Choose the best reason for using the median as the measure of central tendency.
Alchen [17]

Answer:

The median is usually preferred in these situations because the value of the mean can be distorted by the outliers. However, it will depend on how influential the outliers are. If they do not significantly distort the mean, using the mean as the measure of central tendency will usually be preferred.

6 0
3 years ago
Which equation involves a prime quadratic and cannot be solved by factoring?
brilliants [131]
B. x^2 + 5x - 4 = 0

Anyway that you try to factor it will not work

~~hope this helps~~
6 0
3 years ago
I need help finding the quotients
Nutka1998 [239]

Answer:

24÷-6=-4

-15÷0.3=-50

-4+-20=-24

2/5÷3/4=0.5333

Step-by-step explanation:

Thats all i can get sorry :<

I hope it helps and hope its right

8 0
3 years ago
One pound of candies costs $3.50.<br><br> How much will we have to pay for 4.5 lb?
Inessa [10]

Answer:

$15.75

Step-by-step explanation:

Multiply the cost of one pound, 3.50 times how many we want, 4.5

3.5×4.5=15.75

5 0
3 years ago
Read 2 more answers
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