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Anarel [89]
2 years ago
7

If f(x) = 2x - 5 and g(x) = -x2 - 9, then what is the value of g(-4) + f(3)?

Mathematics
1 answer:
Jobisdone [24]2 years ago
6 0

Answer:

-24

Step-by-step explanation:

You will substitute -4 and 3 to the functions

2*3-5=1 and -(-4)^2 - 9=-25

-25+1=-24

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3 years ago
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What is the equation that represents the line?
Kryger [21]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 2, - 6) and (x₂, y₂ ) = (2, - 3) ← 2 points on the line

m = \frac{-3+6}{2+2} = \frac{3}{4}, thus

y = \frac{3}{4} x + c ← is the partial equation

To find c substitute either ot the 2 points into the partial equation

Using (2, - 3), then

- 3 = \frac{3}{2} + c ⇒ c = - 3 - \frac{3}{2} = - \frac{9}{2}

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8 0
3 years ago
Help please !!!!!!!!!!!!!!!!!!!
Dmitry [639]

Answer:

y=2x^2+1

Step-by-step explanation:

I checked on photo maths

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If the measure of each exterior angle is twice as large as each interior angle, the polygon must be a regular
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Step-by-step explanation:

4 0
2 years ago
So sorry to ask another question but I need some help-
Vika [28.1K]

Answer:

14x + 23

Step-by-step explanation:

The lengths of three sides of a triangle are 5x + 9 feet, 2x + 14 feet, and 7x feet.

The perimeter of a triangle: the sum of all of its sides.

5x + 9 + 2x + 14 + 7x

14x + 23

It's the expression of the perimeter of the triangle. Once you will be asked to find x, you'll probably be given the exact perimeter of the triangle.

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