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AveGali [126]
3 years ago
6

The state highway patrol wants to evaluate a new rule for vehicles that was put into place to prevent road accidents across all

large cities. Which measure would be displayed in a graph most appropriately representing this information? A. the rate of decrease in the number of vehicles purchased per year B. the total number of road accidents per year C. the total number of vehicles per person D. the rate of decrease in the number of road accidents per year
Mathematics
1 answer:
Mnenie [13.5K]3 years ago
3 0
Jcjcjcjcjcjcjcjcjcjcj
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What is the value of y when x= -3?<br>y= -2x+9
natka813 [3]

y=15 when x=-3

Because,

y= -2x+9

= -2(-3)+9

= 6+9

=15

so,

y=15

7 0
3 years ago
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3 years ago
jamie has taken three math tests. her scores were 85, 90, and 89. to get an average of 90 what must be the sum of all her tests
Zinaida [17]

Answer:

96 marks

Step-by-step explanation:

We know that the mean of a given amount of values is the sum of the values divided by the number of values

Let the marks in the fourth test = x marks

Mean of the values = 90

(85 + 90 + 89 + x) / 4 = 90

264 + x = 360

x = 96

Therefore, Jamie needs 96 marks in her 4th test to get a mean score of 90

5 0
3 years ago
HELP PLEASE!!!!!!!!​
eimsori [14]

Answer:

8) B. 70

9)C. 6 1/4

10) D. 2,000

hope this helped

3 0
3 years ago
1. Find an algebraic representation for an exponential function if it is known that f(x + 1) = 4.f(x)
MrMuchimi

f(x)=4^{x-1} is the algebraic representation for an exponential function

Step-by-step explanation:

Given:

f(x + 1) = 4.f(x)

f(3) = 16

To Find:

Algebraic representation for an exponential function=?

Solution:

From the formula f(x+n) = 4^n f(x)

when n= 1, x= 3

f(3+1)= 4(1)f(3)

f(4)= 4f(3)

Substituting the value of f(3)

f(4)= 4f(3)

f(4)= 4 x 16  

f(4)= 64

f(4)=4^2

f (5) = 4^2 x 16

f (5) = 4^2 x  4^2

f(5)= 4^4

Similarly,

F(6) = 4^5

Hence, f(x)=4^{x-1}

4 0
3 years ago
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