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wariber [46]
3 years ago
10

Determine which relation is a function.

Mathematics
1 answer:
lutik1710 [3]3 years ago
3 0

Answer:

A

Step-by-step explanation:

One easy way to determine if a coordinate is a function or not is to look at the number in the x's place only. There should not be the same number on the x's side for a different pair.

Every pair has a different number on the x's side, which is why A is the only possible answer.

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What is the percentage of cacao in hot chocolate which is made of 480 grams of milk and 20 grams of cacao?
galina1969 [7]

Given that the hot chocolate is made of 480 grams of milk and 20 grams of cacao.

We need to determine the percentage of cacao in hot chocolate.

<u>The percentage of cacao:</u>

The total grams of hot chocolate can be determined by adding the total grams of milk and the total grams of cacao.

Total grams of hot chocolate = Grams of Milk + Grams of cacao

Total grams of hot chocolate = 480 + 20 = 500 grams.

Thus, the total grams of hot chocolate is 500 grams.

Now, we shall find the percentage of cacao.

The percentage of cacao is given by

\frac{100}{500}\times 20

Simplifying, the values, we get,

\frac{2000}{500}=4\%

Thus, the percentage of cacao is 4%

6 0
3 years ago
A fountain is made up of two semicircles and a quarter circle. Find the perimeter of the fountain. Round answers to nearest tent
AlexFokin [52]

Answer:

39.275

Step-by-step explanation:

the diameter of the semicircle is 10

A semicircle is half a circle, and a quarter circle is 1/4 of a circle.

Perimeter of a semicircle is ¶d/2

= 3.142 x 10/2 = 3.142 x 5 = 15.71

For 2 semicircles that will be 15.71 x 2 = 31.42

For the quarter circle, perimeter is ¶d/4 = 3.142 x 10/4 = 3.142 x 2.5 = 7.855

Total perimeter = 31.42 + 7.855 = 39.275

5 0
4 years ago
Find the coordinates of point B on AC such that AB is 2/7 of AC
Vesnalui [34]

Answer:

Coordinates of B are (-3,-2)

Step-by-step explanation:

AC in the horizontal direction is 14, so AB in the horizontal direction is 2/7 of 14 which is 4.

​AC in the vertical direction is 7, so AB in the vertical direction is 2/7  of 7, which is 2.

To find the coordinates of B, you move right 4, and up 2 from A towards C.

​  

3 0
4 years ago
Find the area of the figure to the nearest thousandth.
puteri [66]

Answer:

add 15+15+4 and you will have the total ft

6 0
3 years ago
7<br> x 16<br> 00<br> What is the correct answer for this problem?
sineoko [7]

Answer:

11200

Step-by-step explanation:

is that right

4 0
3 years ago
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