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Mekhanik [1.2K]
3 years ago
10

Let f(x) = x − 2 and g(x) = x2 − 7x − 9. Find f(g(−1)). (1 point)

Mathematics
2 answers:
Alex73 [517]3 years ago
3 0
Hello,

f(x)=x-2
g(x)=x²-7x-9

f(g(x))=f(x²-7x-9)=x²-7x-9-2=x²-7x-11

f(g(-1))=(-1)²-7*(-1)-11=1+7-11=-3

Answer B
Mila [183]3 years ago
3 0

B is the correct answer I would show how to do it but the other person who answered this question explained it the same way I would.

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Find the equation of the line
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Step-by-step explanation:

I'm assuming the y intercept is 0.5

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Can you help me with my homework please
umka21 [38]

#4(a)

row-seat: 3- 13, 4-15, 5-17, 6-19, 7-21

(b)

the equation works for row 1 but not for any of the rows after this

Ex: Row 2, S=7(2)+2, this would equal 14 but there isn't 14 seats in row #2

(c)

S=2(1)+7, there is 9 seats in row 1

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(d)

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(e)

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3 0
3 years ago
50 points! Please help me
Inga [223]

Answer:

x = 8

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Step-by-step explanation:

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-2x = -16

x = 8

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6 0
3 years ago
Find the distance between the two points in simplest radical form.<br> (-1,9) and (4, -3)
jolli1 [7]

Answer:

GIVEN BY POINTS :-

( -1, 9) , ( 4 , -3)

Here ,

\bullet  \: \:  x _{1} = - 1 \\ \bullet \: \:  x _{2} = 4 \\ \bullet \: \:   y _{1} = 9 \\ \bullet \: \:    y _{2} =  - 3 \\

Using Distance formula :

=  >  \sf d = \sqrt{( {x _{2} - x _{1}) }^{2} + {( {y _{2} - y _{1}) }^{2} } } \\ \\  =  > \sf  d = \sqrt{ ({ 4  + 1)}^{2} + { ( - 3 - 9)}^{2} } \\  \\ =  >  \sf d = \sqrt{ {5}^{2} + {( - 12)}^{2} }  \\ \\  =  > \sf d = \sqrt{25 + 144}  \\ \\  =  > \sf d = \sqrt{169}  \\ \\ =  > \boxed{ \sf{  d = 13\:units }}\\

8 0
3 years ago
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