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Natali5045456 [20]
3 years ago
8

Consider this function. (r) = -3r + 3 Which graph represents the inverse of function ?

Mathematics
1 answer:
4vir4ik [10]3 years ago
3 0

9514 1404 393

Answer:

  C.  graph Y

Step-by-step explanation:

Starting with f(r) = -3r +3, the inverse function can be found from ...

  r = f(y)

  r = -3y +3

  r -3 = -3y

  (r -3)/-3 = y

  y = -1/3r +1

The inverse function will have a slightly negative slope and a y-intercept of 1. This matches graph Y.

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20 points
irinina [24]

Answer:

(a) 9x^2+16x-4

(b) 9a(2a+5)

(c) (y-6)(y-4)

Step-by-step explanation:

(a)

(9x-2)(x+2)=

9x^2-2x+18x-4=

9x^2+16x-4

(b)

18a^2+45a=

9a(2a+5)

(c)

y^2-10y+24=

(y-6)(y-4)

Hope this helps!

4 0
3 years ago
99-7a^2 when a =3 please help!!!!!!!!!
Oxana [17]

Answer:

99-7a^2=36 when a =3

Step-by-step explanation:

99-7a²

99-7(3)²

99-7(9)

99-63

36

6 0
3 years ago
Help me with #4 pleasedeeee
Romashka [77]

Answer:

\dfrac{dy}{dx}=-\dfrac{2x-y-1}{2y-x-1}

Step-by-step explanation:

Differentiating, you get ...

... x·dy +y·dx +dx +dy = 2x·dx +2y·dy

Collecting terms gives ...

... dy(x +1 -2y) = dx(2x -y -1)

... dy/dx = -(2x -y -1)/(2y -x -1)

4 0
3 years ago
two technicians regularly make repairs when breakdowns occur on an automated production line. the first technican, who services
xxMikexx [17]

Answer:

52.63% probability that thids intial repair was made by the first technican

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

P(B|A) = \frac{P(B)*P(A|B)}{P(A)}

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: Incomplete repair

Event B: Made by the first technican.

The first technican, who services 40% of the breakdowns, has 5% chance of making incomplete repair.

This means that P(B) = 0.4, P(A|B) = 0.05.

Probability of an incomplete repair:

5% of 40%(first technican) or 3% of 60%(second technican). So

P(A) = 0.05*0.4 + 0.03*0.6 = 0.038

Given that there is a problem with the production line due to an incomplete repair, what is the probability that thids intial repair was made by the first technican

P(B|A) = \frac{0.4*0.05}{0.038} = 0.5263

52.63% probability that thids intial repair was made by the first technican

8 0
4 years ago
Pls give me the correct answer
Mandarinka [93]

Answer:

-b-2≤8.5

hope this helps!

4 0
2 years ago
Read 2 more answers
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