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yanalaym [24]
3 years ago
9

Which relation is a function

Mathematics
1 answer:
Alenkinab [10]3 years ago
3 0

Answer:

Top left

Step-by-step explanation:


In order for it to be a function, it has to pass the vertical line test.  So draw a line down the middle of the graphs.  If it passes once, then it is a function, if it passes more than once it is not.

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The ratio of men to women in a movie theater is 3:5. As two more men and one more woman walk in, the ratio of men to women becom
34kurt

Answer:

C. 20

Step-by-step explanation:

Let's say M is the original number of men and W is the original number of women.

M / W = 3 / 5

(M+2) / (W+1) = 2 / 3

Let's cross multiply both equations:

5M = 3W

3(M+2) = 2(W+1)

Let's simplify the second equation:

3M + 6 = 2W + 2

3M + 4 = 2W

From the first equation:

M = 3/5 W

Substitute:

3 (3/5 W) + 4 = 2W

9/5 W + 4 = 2W

4 = 1/5 W

W = 20

There were originally 20 women.

Let's check our answer.  That would mean that M = 3/5 W = 12.

After 2 men walk in and 1 woman, W = 21 and M = 14, so 14/21 = 2/3.  Looks like the answer is correct!

Answer C.

7 0
4 years ago
True or false: if x=1, then x>0. If false, give a counterexample.
UkoKoshka [18]
True
because u gotta think about it like that for more then 5 seconds
3 0
3 years ago
Read 2 more answers
Need help with math
podryga [215]

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3 years ago
How many terms are in the expression 3x^2y^4z-6xy-3z(5x^2)
EleoNora [17]
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6 0
3 years ago
PLZZZZZZZZZZ I WILL GIVE BRAINLIEST AND 15PTS!!!!!!!!!!!!!!
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Answer: ( 0, 2 )

Step-by-step explanation:

You have to put coordinates of each graph on these equations y = -x + 2 and y = (1/2)x + 2. If putting coordinates satisfies both equations, then that coordinate will be the solution.

For example, let's put (0, 2) to equations.

y = -x + 2

2 = -0 + 2

2 = 2, true

y = (1/2)x + 2

2 = (1/2) × 0 + 2

2 = 2, true

So, ( 0, 2 ) is the solution.

7 0
3 years ago
Read 2 more answers
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