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3 years ago

Which function has an inverse that is a function?

Mathematics

2 answers:

shusha [124]3 years ago

7 0

Answer:

C. -7x

Step-by-step explanation:

Only one of the offered choices passes the horizontal line test: at most one point of intersection with any horizontal line.

A: a parabola opening upward, so will have two points of intersection with a general horizontal line (only one at the vertex).

B: a horizontal line, so will have an infinite number of points of intersection with a horizontal line.

D. A "V-shaped" graph that will generally have two points of intersection with a horizontal line (only one at the vertex).

katen-ka-za [31]3 years ago

7 0

Answer:

m(x)=-7x C

Step-by-step explanation:

Edge

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A bag contains 6 red marbles, 5 blue marbles and 8 green marbles. If three marbles are drawn out of the bag, what is the probabi

SVETLANKA909090 [29]

Answer: 5.8%

Step-by-step explanation:

In this situation there is no replacement so we have to mulitply the probablilty of the first,second, and third marble being green. First marble has a 8/19 probablilty of being selected because 19 total marbles in the bag and 8 green marbles. the next marble will have a 7/18 probabililty because now only 18 marble are in the bag and we are assuming we selected a green marble on our first draw. Same thing with the last green marble it would be 6/17 because there would be 17 marbles in the bag and 6 green ones left assuming we got the first 2

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3 years ago

Tiffany deposited two checks into her bank account this month.

Dmitry [639]

so we know the tiffany added 50 and 22 in her account and we know her balance is 306 so to find out how much she earned we have to calculate how much she earned in this case

balance

306-22

306

- 22

_______

284

- 50

2 3 4

so 234 is our answer and we can check our and by seeing if it calculates to

306

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306

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3 years ago

Triangle question find the value

swat32

Answer:

55°

Step-by-step explanation:

total angle of a triangle is 180°

we are given 2 angles

85+40+ x = 180

180-125 = 55° (x)

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4 years ago