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liraira [26]
3 years ago
5

Is the relation a function? Why or why not?

Mathematics
2 answers:
Tju [1.3M]3 years ago
7 0

Answer:

Step-by-step explanation:

set up the relation as a table of ordered pairs. Then, test to see if each element in the domain is matched with exactly one element in the range. If so, you have a function!

Rus_ich [418]3 years ago
5 0

Answer:

No

Step-by-step explanation:

What makes a function a function is that it only has one input for every output. So in other words the x can't have two y values. But on a graph you can just do the vertical line test to see if the line intersects the vertical line more than once for any x value, it fails. So if we use the vertical line test we can see that for the x value of 2 is intersected by the line more than once, so this isn't a function.

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There are 300 apples and peaches for sale at a farmers market. The ratio of the number of apples to the number of peaches is 7:8
Sidana [21]

Answer:

The ratio of the reaming apples to peaches is 3 : 4

Step-by-step explanation:

* Lets solve the problem

- There are 300 apples and peaches

- The ratio of the number of apples to the number of peaches is 7 : 8

- To find the the numbers of apples and peaches add the terms of the

  ratio and then divide the total number of apples and peaches by this

  sum and then multiply each terms of the ratio by this quotient

∵ The ratio of apples to peaches = 7 : 8

∴ apple : peach : sum

      7     :     8    :    15

       ?    :       ?    :    300

∴ The number of apples = (300 ÷ 15) × 7 = 20 × 7 = 140 apples

∴ The number of peaches = (300 ÷ 15) × 8 = 20 × 8 = 160 peaches

- 50 apples and 40 peaches are sold

∴ The remaining number of apples = 140 - 50 = 90 apples

∴ The remaining numbers of peaches = 160 - 40 = 120 peaches

- To find the ratio simplify the numbers to its simplest form

∵ There are 90 apples and 120 peaches

∴ apple : peach

      90  :   120      ⇒ divided both by 10

∴       9  :    12       ⇒ divide both by 3

∴       3  :     4    

∴ The ratio of the reaming apples to peaches is 3 : 4

4 0
3 years ago
1/4(3c+5)-1/2(2c+3)=1/2<br><br> Please show some work so I can fiqure it out.
PIT_PIT [208]
So,

1/4(3c + 5) + -1/2(2c + 3) = 1/2

First, we distribute to get rid of the parentheses.  (PEMDAS)
3/4c + 1 1/4 - c - 1 1/2 = 1/2

Now, we collect like terms.
-1/4c - 1/4 = 1/2

Add 1/4 to both sides.
-1/4c = 3/4

Now, multiply by the reciprocal (-4/1).
c = -3

Check your answer.

1/4(3[-3] + 5) + -1/2(2[-3] + 3) = 1/2

1/4(-9 + 5) + -1/2(-6 + 3) = 1/2

-2 1/4 + 1 1/4 + 3 - 1 1/2 = 1/2

-1 + 1 1/12 = 1/2

1/2 = 1/2

4 0
3 years ago
Read 2 more answers
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OverLord2011 [107]

I'm pretty sure it is (2. -11) :)

3 0
3 years ago
Billy has a gift card with a $150 balance. He buys several video games that cost $55 each. After the purchase, his gift card bal
Alekssandra [29.7K]

55v + 40 = 150

55v = 110

v = 2

2 video games.

7 0
4 years ago
A pool measuring 10 meters by 28 meters is surrounded by a path of uniform​ width, as shown in the figure. If the area of the po
mojhsa [17]
Mm im not 100% sure but im pretty sure if you take 10 + 28 and get 38 and then 760 - 38 should be the answer

Soo i think the answer should be 722 meters or whatever
7 0
3 years ago
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