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Whitepunk [10]
2 years ago
10

Which graph of a relation is also a function ?

Mathematics
1 answer:
Illusion [34]2 years ago
3 0

Answer:

B

Step-by-step explanation:

A graph is only a function when there is only one y value for each x value.

A trick is to draw a line through some points on the x-axis, and if the line goes through more than one point. Then it is not a function. (See picture)

Sorry, not all the lines are straight, but you get the point. B is the only one that doesn't have more than one point on the lines I drew.

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What is the area of a circle with a Radius of 4 and a Diameter of 2?<br><br> (Its on Khan)
algol13

Answer:4^2≈50.26548

Step-by-step explanation:

   πr2.

   Where r is the radius and π≈3.14 , the ratio of a circle's circumference to    its diameter.

   Plugging in 4 from the radius, we get.

   42π

   ⇒16π inches.

   This is our exact answer. Alternatively, we can plug in 3.14 for π to get.

   50.26 inches.

7 0
2 years ago
Can u answer this??!!
Lelu [443]
1/2 gallon of milk makes 10 glasses.
\frac{1}{2} x \frac{1}{10} = \frac{1}{20}
4 0
3 years ago
Read 2 more answers
Please help me with number 7
Wittaler [7]

"twelve decreased by twice a number"   --->   12 - 2x

"8 times the sum of number and 4"   --->   8(x + 4)

12 - 2x  =  8(x + 4)

12 - 2x  =  8x + 32                    (distributive property)

12        =  10x + 32                   (add 2x to both sides)

-20       =  10x                           (subtract 32 from both sides)

x  =  -2                                      (divide both sides by 10)

That's answer.
4 0
3 years ago
If the mass of two objects is increased, what is the effect on the force between them?
almond37 [142]

Answer:

A

Step-by-step explanation:

The formula used for this type of question is

F = \frac{Gm_1m_2}{r^2}  

so as long as you don't change anything else (like r), changing m will increase the force. Both of the last 2 answers look like they might be feasible, but they are not. The attraction increases.

So the answer is A

7 0
3 years ago
Read 2 more answers
If p:q = 1/3:2 and p:r = 1/2:3/4 calculate the ratio p:q:r
kirza4 [7]

Answer:

p:q=1/3:2=1:6=3:18

p:r=3/4:1/2=3:2

p:q:r=3:18:2

i hope its help to you ✌

5 0
2 years ago
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