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Alik [6]
3 years ago
9

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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Nikolay [14]

Answer:

46

Step-by-step explanation:

4 x 2= 8

3 x 5= 15

2(8 +15)= 2(23)=

23 x 2= 46

8 0
2 years ago
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— 25 — 3х + 5 or – 3х +5 — 31​
zysi [14]

Answer:

both should

be equal to hope my work is correct or helps

Step-by-step explanation:

first one

-25<-3x+5 subtract 5 from both sides

-25-5=-30

5-5=0

then divide by -3

-30 divided by -3 =10

x=10

so it is equal to not less than

second one

-3x+5<-31

subtract 5 from both sides 5-5=0

-31 -5=-36

then divide both sides by -3

x=12

1

6 0
2 years ago
Why is Wikipedia not considered to be a credible source?
UNO [17]

Answer: b

Step-by-step explanation:

3 0
3 years ago
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In a certain clothing store, 4 shirts and 6 ties cost $70, and 2 shirts and 4 ties cost $42. What is the cost of each tie?
Oksanka [162]

Answer:

  $7

Step-by-step explanation:

Your two equations are ...

  • 4s +6t = 70
  • 2s +4t = 42

Double the second equation and subtract the first:

  2(2s +4t) -(4s +6t) = 2(42) -(70)

  2t = 14 . . . . . simplify

  t = 7 . . . . . . . divide by 2

The cost of each tie is $7.

3 0
3 years ago
128 ounces is how many pounds​
LiRa [457]

Answer:

An ounce is a unit of weight equal to 1/16th of a pound or about 28.35 grams.

A pound is a unit of weight commonly used in the United States and the British commonwealths. A pound is defined as exactly 0.45359237 kilograms.

Step-by-step explanation:

128 Ounces =

8 Pounds

6 0
3 years ago
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