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ella [17]
3 years ago
7

A driver starts his parked car and within 7 seconds reaches a velocity of 75 m/s as he travels west. What is his acceleration?​

Mathematics
2 answers:
lys-0071 [83]3 years ago
6 0

75 m/s / 7 s = 10.71 m / s^2

His acceleration is 10.71 m/s^2

Otrada [13]3 years ago
5 0

Answer:

21

Step-by-step explanation:

jfnvjfog'nearg

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A moose population is growing exponentially following the pattern in the table shown below. Assuming that the pattern continues,
EleoNora [17]

Answer:

  •   <u> 7,692 moose.</u>

Explanation:

The table that shows the pattern for this question is:

Time (year) Population

  0                   40

  1                     62

  2                    96

  3                   149

  4                   231

A growing exponentially pattern may be modeled by a function of the form P(x) = P₀(r)ˣ.

Where P₀ represents the initial population (year = 0), r represents the multiplicative growing rate, and P(x0 represents the population at the year x.

Thus you must find both P₀ and r.

<u>1) P₀ </u>

  Using the first term of the sequence (0, 40) you get:

   P(0) = 40 = P₀ (r)⁰ = P₀ (1) = P₀

Then, P₀ = 40

<u>  2) r</u>

Take two consecutive terms of the sequence:

  • P(0) = 40 r⁰ = 40
  • P(1) = 40 r¹ = 40r = 62
  • P(1) / P(0) = 40r / 40 = 62/40
  • r = 62/40 = 1.55

 

You can verify that, for any other two consecutive terms you get the same result: 96/62 ≈ 149/96 ≈ 231/149 ≈ 1.55

<u>3) Model</u>

 

Thus, your model is P(x) = 40(1.55)ˣ

<u> 4) Population of moose after 12 years</u>

  • P(12) = 40 (1.55)¹² ≈ 7,692.019 ≈ 7,692, which is round to the nearest whole number.
7 0
2 years ago
9a - ab + 5b<br><br>if a = 2 and b = 7​
Anit [1.1K]
9a-ab+5b
9(2)-(2)(7)+5(7)
18-14+35
39
8 0
2 years ago
Please answer in detail
sammy [17]

Answer:

y=5x-1 I think because the snd option doesn't make sense but you should try y =5x-1

8 0
2 years ago
100 points!!! i will award brainliest!! Lines AB, and CD are straight lines. Find x and y
Ket [755]

<O = 16 degrees   vertical angles are equal


<O + 4x+90 = 180   DC is a straight line

16 +4x +90 = 180

106 +4x = 180

4x =74

x =18.5


16 +90  +2y= 180   DC is a straight line

106+2y=180

2y = 74

y= 37

Answer : y=37

x=18.5

3 0
2 years ago
Read 2 more answers
The coefficient of the a2 term is
Elena-2011 [213]

Answer:

-2

Step-by-step explanation:

The coefficient is the number in front of the variable.

5 0
3 years ago
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