3 years ago

The sales tax on a $56.00 is 48. that rate, what would be the sales tax on 60.00 worth -

Mathematics

1 answer:

Bumek [7]3 years ago

6 0

Answer:

51.43

Step-by-step explanation:

im not sure if you typed it correctly but using the above information and setting up the ratio, this is the outcome

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motikmotik

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Add. −38+(−2910) Enter your answer as a simplified fraction by filling in the boxes.

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Answer:

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3 years ago

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Read 2 more answers

An arch is in the shape of a parabola. It has a span of 100 feet and a maximum height of 25 ft.

faltersainse [42]

Answer:

$y=-\frac{1}{100}(x-50)^2+25$

the height of the arch 10 feet from the center is 24 feet

Step-by-step explanation:

An arch is in the shape of a parabola. It has a span of 100 feet, the vertex lies at the center 50 and the maximum height of 25 ft.

Vertex at (50,25)

vertex form of the equation is

$y=a(x-h)^2+k$ , (h,k) is the center

$y=a(x-50)^2+25$

the parabola starts at (0,0) that is (x,y)

$0=a(0-50)^2+25$

subtract 25 from both sides

$-25=a(-50)^2$

$-25=a(2500)$

divide both sides by 2500

$a=-\frac{1}{100}$

$y=-\frac{1}{100}(x-50)^2+25$

the height of the arch 10 feet from the center.

center is at 50, 10 feet from the center so x=40 and x=60

$y=-\frac{1}{100}(40-50)^2+25$

y=24

the height of the arch 10 feet from the center is 24 feet

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3 years ago