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liubo4ka [24]
3 years ago
15

Please answer this giving brainliest and 20 points. If you say something weird i will make sure you get banned.

Mathematics
1 answer:
Katena32 [7]3 years ago
3 0

Answer:

C. The value of a is the number that the x-values are multiplied by to get to the corresponding y-values. So, a = 3.

Step-by-step explanation:

Given the points (5, 15) and (-5, -15) are plotted using the equation y = a•x, this shows a proportional relationship between y and x.

Thus using any of the points, say (5, 15), x = 5, and y = 15, thus:

a = y/x = 15/5

a = 3

Therefore, the value of a, which is 3, is the number that the x-values, 5 and -5, are multiplied by to get the corresponding y-values, 15 and -15.

As we can see, if we multiply each of the x-values by 3, it will give us their corresponding y-values.

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If the hypotenuse of a right triangle is 20 cm and one of the legs is 16 cm, how long is the other leg?
siniylev [52]
Because this is a triangle and we know that we can use the Pythagorean Theorem to find the hypotenuse we just plug in the numbers. But because you have the hypotenuse already you will subtract the leg from the hypotenuse.

A^2+B^2=C^
16^2+B^2=20^2
256+B^2=400 subtract 256 from both sides
B^2=144 now take the square root of both sides
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6 0
3 years ago
Help help ASAP!!!!!!!!
Georgia [21]

Answer:

d = 25.12

Step-by-step explanation:

volume = 144 pie cm cubed

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6 0
2 years ago
What is the value of x?
Mrrafil [7]

Answer:

3

Step-by-step explanation:

Triangles with the same shape but different size are proportional. Proportional means that their side lengths form equal ratios. To solve for x, set up a proportion.

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So write:

\frac{4}{x} =\frac{3}{2.25}

To solve, cross multiply numerator with denominator.

4(2.25) = 3(x)

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5 0
3 years ago
Which choice is an irrational number?
Dmitry [639]

Answer:

3 one good luck with the question

6 0
3 years ago
Read 2 more answers
_____% of 145 = 75<br> 48.3%<br> 193.3%<br> 76.5%<br> 51.7%
Pavlova-9 [17]
48.3 i’m pretty sure! your welcome:)
7 0
2 years ago
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