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Leokris [45]
3 years ago
14

Please help with question 7 and 8 also 9

Mathematics
1 answer:
noname [10]3 years ago
5 0
I think it would be B but I’m not sure for number 7
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The answer is 114. Here’s what I did.

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3 years ago
Let f(x) = 4x – 5 and g(x) = 3x + 7. find f(x) + g(x) and state its domain.
Tema [17]

We are given the functions:

f(x) = 4 x – 5                       ---> 1

g(x) = 3 x + 7                       ---> 2

 

To find for the value of f(x) + g(x), all we have to do is to add equations 1 and 2:

f(x) + g(x) = 4 x – 5 + 3 x + 7

f(x) + g(x) = 7 x + 2 = y

 

In this case, for any real number value assign to x, we get a real number value of y. This is because the function is linear.

Therefore the domain of the function is all real numbers.

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3 years ago
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USPshnik [31]

Answer:

y = mx + b

Step-by-step explanation:

y represents the dependent variable (value you are getting).

m represents the slope of the line.

x represents the independent variable (what you are changing).

b represents the y-intercept, or the y value when x is zero.

4 0
2 years ago
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Is the perpendicular bisector of a line segment also an angle bisector?
algol13

Answer:

yes

Step-by-step explanation:

In an isosceles triangle, one perpendicular bisector is also an angle bisector.

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