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jek_recluse [69]
3 years ago
10

Find the area in the first quadrant bounded by the arc of the circle described by the polar equation r = 2 sin θ + 4 cos θ. The

circle is graphed in the accompanying figure. A. 5π/2 + 4 B. 5 π C. 5 π + 8 D. 5π/2
Mathematics
1 answer:
dedylja [7]3 years ago
6 0
The radius of the circle is sqrt(5)

so the A = pi*r*r = pi * sqrt(5) * sqrt(5) = 5pi

the answer os <span>B. 5 π </span>
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An electronics store has portable CD players on sale for $54.95. If the local sales tax is 6.5%, what is the total cost of a CD
borishaifa [10]

Answer:

Total cost of CD player = $58.52

Step-by-step explanation:

Given data:

Price of CD player on sale= $54.95

Local sales tax = 6.5%

Total cost of CD player = ?

Solution:

Local sales tax= (6.5 * 54.95)/100 = $3.57

Total cost of CD player = Price of CD player on sale + Local sales tax

                                       =  $54.95 + $3.57

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The table shows the relationship between Megan’s earnings and the hours that she worked.
soldier1979 [14.2K]

Answer:

C.76

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8 0
2 years ago
Three years ago, Jolene bought $625 worth of stock in a software company. Since then the value of her
Lesechka [4]

Answer:

The stock is worth 765.65 today.

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8 0
2 years ago
A rectangular room is 1.5 times as long as it is wide, and its perimeter is30 meters. find the dimension of the room.
Tpy6a [65]

Answer:

6 meters by 9 meters

Step-by-step explanation:

<u><em>Step 1: Formula for perimeter of rectangle</em></u>

Rectangle's perimeter = 2 (length) + 2 (width)

Rectangle's perimeter = 2 (length + width)

<u><em>Step 2: Find the length and width in terms of x</em></u>

Width = x

Length = 1.5 times width

Length = 1.5x

<u><em>Step 3: Find x</em></u>

Perimeter = 2(length + width)

30 = 2 (1.5x + x)

30/2 = 2.5x

15/2.5 = x

x = 6

<u><em>Step 4: Find the length and width</em></u>

Width = x = 6 meters

Length = 1.5x = 1.5(6) = 9 meters

Therefore, the dimensions of the room are 6 meters and 9 meters.

6 0
3 years ago
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