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coldgirl [10]
3 years ago
14

Can someone explain how to do this?

Mathematics
1 answer:
MrRissso [65]3 years ago
4 0
Hope this helps you!!!

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For the function y=400-22x, what is the rate of change
dolphi86 [110]

Answer:

-22

Step-by-step explanation:

The function y=400-22x is a linear equation in the form y=mx + b. Although they put "mx" after "b" so the equation doesn't start with a negative.

"m" is rate of change, or the slope if graphed.

The negative means "y" decreases as "x" increases. On a graph, it decreases left to right.

8 0
3 years ago
Just all of question b
Anni [7]

Good evening ,

_______

Answer:

<h2>b)</h2><h2>i) 50 km/h</h2><h2>ii) 75 km/h</h2><h2>iii) 50 km/h</h2>

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Step-by-step explanation:

b)

i) (50-0)÷(10-9)

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ii)  (150-75)÷(12-11)

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iii) (150-0)÷(12-9)

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5 0
3 years ago
Find the inverse of the function f(x)=x^2+9
Vikki [24]
-9+x ?
I don’t know if this is the right answer
6 0
3 years ago
Select the correct answer. What is the value of this expression when a = 7 and b = -4?
iragen [17]

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hhj

Step-by-step explanation:

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6 0
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Please help me with this question
jeyben [28]

Answer:

37

add all of them together then divide it by two

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