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3 years ago

What is the domain of function of f(x)=-2x+4x

Mathematics

1 answer:

dem82 [27]3 years ago

4 0

Answer:

Domain= x∉Real numbers

Step-by-step explanation:

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Paint cost $9.95 per gallon.Nikki needs 2.5 gallons to complete a painting project. How much will Nikki spend on paint

marta [7]

Answer:

$24.875

Step-by-step explanation:

If we use an equation to solve the total amount, like y=9.95x where x is the gallons purchased. We then multiply 9.95 by 2.5 to get 24.875

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3 years ago

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PLS HELP

LiRa [457]

There is 3600 seconds per hour.
Multiply the speed per second by 3600 to get the speed in miles per hour then convert to kilometer/hour.

4.9 * 3600 = 17,640 miles per hour

17,640 x 1.6 = 28,224 kilometers per hour

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3 years ago

What is two 2/3÷1 1/6

babunello [35]

Answer:

0.57142857142

Step-by-step explanation:

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3 years ago

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Please help i beg i never get these right

Anuta_ua [19.1K]

Answer:

$\sin(105) = \frac{\sqrt 2 + \sqrt 6}{4}$

Step-by-step explanation:

Given

$\sin(105^o)$

Required

Solve

Using sine rule, we have:

$\sin(A + B) = \sin(A)\cos(B) + \sin(B)\cos(A)$

This gives:

$\sin(105^o) = \sin(60 + 45)$

So, we have:

$\sin(60 + 45) = \sin(60)\cos(45) + \sin(45)\cos(60)$

In radical forms, we have:

$\sin(60 + 45) = \frac{\sqrt 3}{2} * \frac{\sqrt 2}{2} + \frac{\sqrt 2}{2} * \frac{1}{2}$

$\sin(60 + 45) = \frac{\sqrt 6}{4} + \frac{\sqrt 2}{4}$

Take LCM

$\sin(60 + 45) = \frac{\sqrt 6 + \sqrt 2}{4}$

Rewrite as:

$\sin(60 + 45) = \frac{\sqrt 2 + \sqrt 6}{4}$

Hence:

$\sin(105) = \frac{\sqrt 2 + \sqrt 6}{4}$

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2 years ago

Find the perimeter of the following shape, round to the nearest tenth

dybincka [34]

Answer: you take the slope of the lines rise over run and add together

Step-by-step explanation:

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3 years ago

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