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sasho [114]
3 years ago
10

Please please please please please help me please ​

Mathematics
1 answer:
Lesechka [4]3 years ago
7 0

Answer:

a

Step-by-step explanation:

im guessing on this,  but im positive this is the right answer

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N which situation is the distance traveled proportional to time?
madam [21]

9514 1404 393

Answer:

  B) biker at 12 mph

Step-by-step explanation:

Distance is proportional to time when velocity is constant. It is not constant in the case of stop-and-go traffic, a baseball*, or a slowing car. The speed of the person biking is given as a constant 12 mph, so that person is traveling a distance proportional to time.

_____

<em>Additional comment</em>

* It depends. The usual assumption is that horizontal speed is constant, in which case the distance from the hitter along the ground is proportional to time. If you are modeling the real world, the ball slows due to air resistance, so distance is not proportional to time.

If you are concerned with the actual distance the baseball travels through the air, the ball's speed slows as it gains height, then increases again as it falls to the ground. The speed is not constant during any part of that travel.

6 0
3 years ago
Which of the following is the best approximation of the correlation coefficient for the data displayed in the scatterplot?
ra1l [238]

Answer:

0.5

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Pls help me answer this question
omeli [17]
The answer is -269/30 ;)
3 0
3 years ago
The function T = 25 - sin ( – 4)) +5
tatuchka [14]

Answer:

the third one ithink

Step-by-step explanation:

3 0
3 years ago
If $4200 is invested in a savings account for which interest is compounded
Monica [59]

Answer:

3.9%

Step-by-step explanation:

The formula for compound interest to apply is;

A=P(1+\frac{r}{n} )^{nt}

where;

A=amount at the end

P=starting amount/principal

n=number of compounding years

t=total number of years

r=interest rate expressed as a decimal

Given

P=$4200, n=2, t=4 and A=$4900 R=?

Substitute values in equation, take r=r

A=P(1+\frac{r}{n} )^{nt} \\\\\\4900=4200(1+\frac{r}{2} )^{2*4} \\\\\\4900=4200(1+0.5r)^8

Divide both sides by 4200

\frac{4900}{4200} =\frac{4200}{4200} (1+0.5r)^8\\\\\\1.1667=(1+0.5r)^8

Introduce root 8 to the left hand side, thus eliminating the power 8 in the right hand side

\sqrt[8]{1.1667} =1+0.5r\\\\\\1.0195=1+0.5r\\\\\\1.0195-1=0.5r\\\\\\0.0195=0.5r\\\\\\\frac{0.0195}{0.5} =\frac{0.5r}{0.5} \\\\\\0.039=r

r=3.9%

7 0
2 years ago
Read 2 more answers
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