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3 years ago

Fred earned $22.50 in nine hours. how much did he earn after 4 hours? please show all your work

1 answer:

6 0

I believe the answer is 10

22.50 divided by 9 to show how much for 1 hour. That is 2.5 so next 2.5 x 4 = 10

I don’t completely know if this is correct but I believe it is

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3 years ago

Change 95.61 to degrees, minutes, and seconds.

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Snezhnost [94]

Answer:

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So 180÷6=30

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3 years ago

Consider the following.3x + 3y = 8(a) Find y' by implicit differentiation.(b) Solve the equation explicitly for y and differenti

ludmilkaskok [199]

Answer:

a.y'=-1

b.y'=-1

c.Yes

Step-by-step explanation:

We are given that consider a function

$3x+3y=8$

Implicit function: That function is a relation in which dependent variable can not be expressed in terms of independent variable

Explicit function: It is that function in which dependent variable can be expressed in terms of independent variable.

a. $3x+3y=8$

Differentiate w.r.t x then we get

$3+3\frac{dy}{dx}=0$

$3\frac{dy}{dx}=-3$

$\frac{dy}[dx}=\frac{-3}{3}=-1$

$\frac{dy}{dx}=y'=-1$

b. $3x+3y=8$

$3y=8-3x$

$y=\frac{8-3x}{3}$

Differentiate w.r.t x then we get

$\frac{dy}{dx}=\frac{-3}{3}=-1$

$\frac{dy}{dx}=y'=-1$

When we substituting the value of y obtained from part b into a solution of part a then we get

$y'=-1$

Hence, solutions are consistent.

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2 years ago

How many significant figures are in the number 12.001?

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There are five significant figures in 12.001

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3 years ago