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guapka [62]
3 years ago
12

Which relations are functions? Select function or not a function for each graph

Mathematics
1 answer:
katovenus [111]3 years ago
7 0
This is NOT a function. The reason why is because we are able to pass a single vertical line through more than one point on the cure. It fails the vertical line test.

For it to be a function, every input x must lead to exactly one output y
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Jug A has 0.1 litres more than jug B. Jug C has 200 millilitres less than jug B. Jug D has ¼ of the amount that is in jug A. The
Gnesinka [82]

Answer:

A = 0.8 litres

B = 0.7 litres

C = 0.5 litres

D = 0.2 litres

Step-by-step explanation

Here's what we know:

1. Jug A = B + .1 litres

2. Jug C = B - 200 (or 0.2 litres)

3. Jug D = .25 x A

4. Jug A + Jug B = 1.5 litres

In problem 1, we learned that Jug A has .1 litres more than Jug B and in problem 4, the two of them added together are 1.5 litres. To solve this we can combine the problems.  

B + .1 litres + B = 1.5 litres

2B + .1 = 1.5

Subtract .01 from each side and you have 2B = 1.4

Divide each side by 2 and you have B = 0.7 litres

Plug this info into problem 1 and you can solve for A. (0.7 + 0.1 = 0.8)

Plug this info into problem 2 and you can solve for C. (0.7 - 0.2 = 0.5)

Since you have A, you can use that info to solve problem 3 (0.25 x 0.8 = 0.2)

8 0
2 years ago
Simplify. 9(x+3)+15x
diamong [38]
9(x + 3) + 15x

9x + 27 + 15x ...combine like terms
24x + 27 <==
5 0
3 years ago
Read 2 more answers
You get scores of 72 and 88 on 2 science tests. You have to have an average of at least 85 to not be grounded by your parents. W
svetoff [14.1K]

Answer:

95

Step-by-step explanation:

72+88+95=255:3= 85

7 0
3 years ago
Read 2 more answers
Find the perimeter of the window. Round your answer to the nearest tenth.
liberstina [14]
1) The perimeter is the sum of the lengths of the straight edge (the diameter of the semicircle) and the length of the arc of the semicircle.

The circumference of a 4 ft circle is
  π*diameter = π*4 ft ≈ 12.566 ft
The semicircle will have a length that is half that, 6.283 ft. When this length is added to the diameter, the perimeter is found to be
  Perimeter = 4 ft + 6.283 ft ≈ 10.3 ft.


2) The area of a circle is given by the formula
  A = (π/4)d²
For a diameter of 15 inches, the area is
  A = (π/4)(15 in)² = 56.25π in²
  A ≈ 176.7146 in²

The area of the circle is about 176.71 in².
5 0
3 years ago
Please hurry I will give brainless answer if correct
Natali [406]

Answer:

we have to be able to read it first tho. we can't see what the problem is so we need to see it please and thank you...

7 0
2 years ago
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