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olga2289 [7]
3 years ago
6

Sarah mailed her computer to Store B for repairs. Her bill was: Initial Repair Cost = $1,350 Sales Tax of 7 percent = $94.50 Tot

al Cost of Computer Repair = $1,444.50 Shipping = 2 percent of Total Cost What is the cost to ship this computer from Store B?
Mathematics
2 answers:
algol [13]3 years ago
6 0

Answer:

28.89

Step-by-step explanation:

Total cost =$1444.50

shipping percent= 2%

So, there is written that Shipping = 2% of Total cost

Ship Cost= 2%×$1444.50

= $28.89

stellarik [79]3 years ago
5 0

Answer:

$28.89

Step-by-step explanation:

Sarah mailed her computer to store-B for repairs. Her bill was :

Initial repair cost = $1,350

Sales tax 7%        = $94.50

Total cost of computer repair = $1,444.50

Shipping   = 2% of 1,444.50

                 = \frac{2}{100}\times 1,444.50

                 = 0.02 × 1,444.50

                 = $28.89

The cost to ship this computer from store-B is $28.89

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<h2>x = 2</h2>

Step-by-step explanation:

Given the equation model 4x+(-4) = -2x+8

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1

Step-by-step explanation:

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Given f: ℝ → ℝ and : ℝ → ℝ , for the following, find f(g(x)) and g(f(x)), and state the domain.
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Answer:

Remember, (f\circ g)(x)=f(g(x)) and the range of g must be in the domain of f.

a)

f(g(x))=f(x-1)=(x-1)^2-(x-1)=x^2-2x+1-x+1=x^2-3x+2

g(f(x))=g(x^2-x)=(x^2-x)-1=x^2-x-1

The domain of f(g(x)) and g(f(x)) is the set of reals.

b)

f(g(x))=f(\sqrt{x}-2)=(\sqrt{x}-2)^2-x=\sqrt{x}^2-2*2*\sqrt{x}+2^2-x=-4\sqrt{x}+4

g(f(x))=g(x^2-x)=\sqrt{x^2-x}-2

The domain of f(g(x)) is the set of nonnegative reals and the domain of g(f(x)) is the set of number such that x^2-x\geq 0

c)

f(g(x))=f(\frac{1}{x-1})=(\frac{1}{x-1})^2=\frac{1}{(x-1)^2}

g(f(x))=g(x^2)=\frac{1}{x^2-1}

The domain of f(g(x)) is the set of reals except the 1 and the domain of g(f(x)) is the set of reals except the 1 and -1

d)

f(g(x))=f(\frac{1}{x-1})=\frac{1}{(\frac{1}{x-1}-1)}=\frac{1}{\frac{2-x}{x-1}}=\frac{x-1}{2-x}

g(f(x))=g(\frac{1}{x+2})=\frac{1}{(\frac{1}{x+2}-1)}=\frac{1}{\frac{-x-1}{x+2}}=\frac{x+2}{-x-1}

The domain of f(g(x)) is the set of reals except 2, and the domain of g(f(x)) is the set of reals except -1.

e)

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g(f(x))=g(x-1)=log(2(x-1)+6)=log(2x+4)

The domain of f(g(x)) is the set of nonnegative reals except -3. The domain of g(f(x)) is the set of nonnegative reals except -2.

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