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ikadub [295]
3 years ago
13

Create a list of steps, in order, that will solve the following equation 1/4(x+5)^2-1=3

Mathematics
1 answer:
Paul [167]3 years ago
7 0

Answer:

Add 1 to each side

Multiply each side by 4

Take the square root of each side

Subtract 5 from each side

Combine terms

Step-by-step explanation:

1/4(x+5)^2-1=3

Add 1 to each side

1/4(x+5)^2-1+1=3+1

1/4(x+5)^2=4

Multiply each side by 4

4*1/4(x+5)^2=4*4

(x+5)^2=16

Take the square root of each side

sqrt((x+5)^2)=±sqrt(16)

x+5 = ±4

Subtract 5 from each side

x+5-5 = -5  ±4

x = -5  ±4

Combine terms

x = -5+4       x = -5-4

x = -1            x = -9

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Circle A has a radius of 9.0 cm. The shortest distance between B and C on the circle is 8.5 cm. What is the approximate area of
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Answer:

38.25 cm²

Step-by-step explanation:

We use the formula for the length of an arc to find the central angle of the sector of the circle.

Then we use the formula for the area of a sector of a circle to find the area.

Length of arc of circle of radius r:

s = \dfrac{n}{360^\circ}2 \pi r

s = arc length

n = measure of the central angle of the sector

s = \dfrac{n}{360^\circ}2 \pi r

8.5~cm = \dfrac{n}{360^\circ}2 \pi \times 9.0~cm

n = 54.1^\circ

Area of sector of circle of radius r:

A = \dfrac{n}{360^\circ} \pi r^2

A = area of sector of circle

n = measure of the central angle of the sector

A = \dfrac{54.1^\circ}{360^\circ} \pi (9.0~cm)^2

A= 38.25~cm^2

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2 years ago
Ms. M wants A LOT of tropical fish, so Mr. M must buy the biggest tank. Which tank should he buy, A or B? How much greater is th
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Answer:

tank A is bigger

Step-by-step explanation:

the volume is greater by 3%

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3 years ago
Elizabeth bought a plant and planted it in a pot near a window in her house. Let H represent the height of the plant, in inches,
adell [148]

Answer:

63.5 in

Step-by-step explanation:

y2-y1/x2-x1

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y=mx+b

21=5(1)+b

21-5= 16

b=16

y=mx+b

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=63.5

6 0
3 years ago
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Answer:

-3.85

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0.5757… as a fraction
Radda [10]

Answer:

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