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2 years ago

Will mark brainliest and 15 points

Mathematics

1 answer:

defon2 years ago

7 0

Step-by-step explanation:

x + y = 9. => 2x + 2y = 18.

2x + 2y = 18

- (2x - 3y = -12)

=> 5y = 30, y = 6.

Therefore x + (6) = 9, x = 3.

The solution is x = 3 and y = 6.

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3 years ago

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You are competing in a race. The table shows the times from last year's race. You want your time to be last year's median time w

olasank [31]

Answer:

28 ≤ x ≤40

Step-by-step explanation:

Arrange the data from the smallest to the largest

26, 27, 28,32, 32, 33, 35, 36, 38, 40,42,48

Identify the median value

26, 27, 28,32, 32,<u> 33, 35</u>, 36, 38, 40,42,48

Getting the median

(33+35)/2 = 68/2 = 34 minutes

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3 years ago

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Let the function f(x) have the form f(x) = Acos(x-C). To produce a graph that

Gala2k [10]

Answer:

A has to be 2

Step-by-step explanation:

In the expression $f(x)=A*cos(x-C)$ , the multiplicative factor A represents what is called the "amplitude of the wave-shaped function that you obtain as the graph. Such amplitude is understood as half of the crest-to-through distance of the wavy curve.

From the drawing, the crest is at y=2 and the through at y=-2 (a distance of 4 units) therefore the value of A should be half of that distance: 4/2 = 2

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3 years ago

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What is one way to find the number of liters in 8 kiloliters?

zhuklara [117]

Answer:

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Step-by-step explanation:

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3 years ago

If 200 vitamines cost $8.75, what should 500 vitamins cost?

WARRIOR [948]

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3 years ago

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