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4 years ago

3.) rewrite r(x) in expanded form

Mathematics

2 answers:

Andrew [12]4 years ago

6 0

Answer:

Step-by-step explanation:

r(x)= (x-3)(x+5)

= x²+5x-3x-15

=x²+2x-15

Nikitich [7]4 years ago

6 0

Answer:

${\huge{\pink{\underline{\underline{QuEsTiOn}}}}}$

rewrite r(x) in expanded form

${\huge{\pink{\underline{\underline{SoLuTiOn}}}}}$

$(x-3)(x+5)\\=>x(x + 5) - 3(x + 5) \\= > {x}^{2} + 5x - 3x + 15\\ => {x}^{2} + 2x + 15$

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Svetllana [295]

Answer:

77 degrees

Step-by-step explanation:

supplementary angles add up to 180 degrees

subtract 103 from 180 to get 77 degrees

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3 years ago

What equation passes through the points (0,6) and (6,2)

Serjik [45]

Answer:

First find the slope using the formula

m = (Y2 - y1)/(x2 - x1)

(x1, y1) = (0,6)

(x2, y2) = (2,10)

m = (10-6)/(2-0)

m = 4/2

m = 2

Now we need the y-intercept or b

y = mx + b

y = 2x + b

Use one of the coordinates for x and y. It doesn't matter which you choose

6 = 2(0) + b

6 = 0 + b

6 = b

Now let's put it together for the equation :

y = 2x + 6

3 0

3 years ago

If f(x) = x2 − 2x + 9 and g(x) = 8 − x, what is (f o g)(−4)? A. 111 B. 144 C. 120 D. 129

lapo4ka [179]

Answer: OPTION D

Step-by-step explanation:

Given the functions $f(x) = x^2 - 2x + 9$ and $g(x) = 8 - x$ , you need to substitute the function g(x) into the function f(x), then:

$(fog)(x)=(8-x)^2 - 2(8-x) + 9$

Now, you need substitute the input value $x=-4$ into $(fog)(x)$ , then you get the following output value:

$(fog)(-4)=(8-(-4))^2 - 2(8-(-4)) + 9$

$(fog)(x)=(8+4)^2 - 2(8+4) + 9$

$(fog)(x)=(12)^2 - 2(12) + 9$

$(fog)(x)=129$

This matchis with the option D

6 0

4 years ago

ASAP whats 1+1 and 1+2 and 1+3 and 1+4

Semmy [17]

Answer:

1+1=2

1+2=3

1+3=4

1+4=5

8 0

2 years ago

What is the length of the hypotenuse?

Katyanochek1 [597]

Answer:

Step-by-step explanation:

just use pyth then you'll get the answer

6 0

3 years ago

Read 2 more answers