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aev [14]
2 years ago
11

Does y = 2x + 4 show direct variation?

Mathematics
2 answers:
monitta2 years ago
7 0

Answer:

NO

Step-by-step explanation:

in order for it to be a direct variation, "+4" must be out of the equation. y=kx

Elza [17]2 years ago
5 0

Answer:

no

Step-by-step explanation:

Direct variation is of the form

y = kx

This has a constant added

y = kx+b so it is not a direct variation

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Answer:

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Step-by-step explanation:

put the numbers in order

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2 years ago
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If a 24-foot ladder makes a 58 degree angle with the ground, how many feet up a wall will it reach? Round your answer to the nea
mash [69]

Answer: 20.4 feet

Step-by-step explanation:

(image attached for reference)

To find how high the ladder reaches on the wall, first find the relationship between the angle and the wall. The wall is opposite to the angle, so it's possible to solve this equation using sin(58). Sine equals opposite over hypotenuse so sin(58) = x/24. Multiply 24 on both sides to get an equation that can be plugged into a calculator of 24sin(58) = x.

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1 year ago
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2 years ago
F(x)= 2x+3/x-1, x ≠ 1, dan f^-1 adalah invers dari f
Sindrei [870]

Answer:

The answer are

A.

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Step-by-step explanation:

To find the infers we do that

f(x) =  \frac{2 x + 3}{x - 1 }  \\ (x - 1)f(x) = 2x + 3 \\ xf(x) - f(x) = 2x + 3 \\ xf(x) - 2x = f(x) + 3 \\ x(f(x) - 2) = f(x) + 3 \\  x =  \frac{f(x) + 3}{f(x) - 2}  \\ then \:  \\  {f}^{ - 1} (x) =  \frac{x + 3}{x - 2}  \\ then \\  {f }^{ - 1} ( - 3) =  \frac{ - 3 + 3}{ - 3 + 2}  = 0

5 0
2 years ago
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5 0
3 years ago
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