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olganol [36]
3 years ago
15

What is it for both?

Mathematics
1 answer:
Furkat [3]3 years ago
7 0

Answer:

Tip: 4,2

Total cost: 32,2

Step-by-step explanation:

Tip: (28×15)÷100 = 4,2

Total cost: Tip + original money

           -->   4,2 + 28 = 32,2

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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

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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

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divide both sides by 2500

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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

4 0
3 years ago
Use the proportion of the triangle enlargement to find the missing measure of the enlarged triangle.
My name is Ann [436]
3. Simplify: 144 = 6x
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Answer:

f = 4

Step-by-step explanation:

Step 1: Distribute

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Step 2: Combine like terms

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Step 3: Add 14f to both sides

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Answer:

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