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4 years ago

9

Please answer this questions for me

1 answer:

Crazy boy [7]4 years ago

4 0

The player that’s further to the hole I’m so sorry if it’s incorrect

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The average high temperature each month in a calendar year for a city in South Carolina is represented by the function: f(x)=−x2

LuckyWell [14K]

Answer:

$Average\hspace{3}rate\hspace{3}of\hspace{3}change=-7.7$

Step-by-step explanation:

The average rate of change measures the average rate at which a function changes per unit time in a given interval. In another words, the average rate of change is the relationship between vertical and horizontal changes between two points of the function. So, basically if you are trying to find the average rate of change, you are trying to find the slope.

$Average\hspace{3}rate\hspace{3}of\hspace{3}change=Slope=m=\frac{\Delta y}{\Delta x} =\frac{f(x_2)-f(x_1)}{x_2-x_1}$

If $x$ represents the months, then:

Let:

$September=x_1=9\\December=x_2=12$

So:

For:

$f(x)=-x^2+13.3x+42$

$f(x_1)=f(9)=-(9)^2+13.3(9)+42=80.7\\\\f(x_2)=f(12)=-(12)^2+13.3(12)+42=57.6$

Therefore:

$Average\hspace{3}rate\hspace{3}of\hspace{3}change=\frac{57.6-80.7}{12-9} =\frac{-23.1}{3} =-7.7$

4 0

4 years ago

A=0.5 b=-6 <br> work out ab-b

lisov135 [29]

Answer:

a = 0.5

b = 6

ab - b

= 0.5 × 6 - 6

= 3 - 6

= -3

Hope it helps:)

8 0

3 years ago

I<br> 8. Classify 8 as a perfect square, a perfect cube, both, or neither.

Murljashka [212]

Answer:

It's a perfect cube, but not a perfect square.

Step-by-step explanation:

2^3 = 8, meaning 8 is a perfect cube. But since 2^2 = 4 and 3^2 = 9, and 8 is in between, 8 is not a perfect square.

I hope this helped.

7 0

4 years ago

The Bui family consists of 2 adults and 3 children. They spent $36 for zoo tickets. The equation 2x + 3y = 36 describes the cost

julia-pushkina [17]

Answer:

(0, 12)

Step-by-step explanation:

To find the y-intercept we just plug in x = 0 into the equation.

2(0) + 3y = 36

3y = 36

y = 12 which means the y-int. is (0, 12)

6 0

4 years ago

Read 2 more answers

What is the LCD of 3/10 and -4/15?

s2008m [1.1K]

30! Is the lcd for both

8 0

4 years ago

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