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Bogdan [553]
3 years ago
14

Please help show your work and 20 points.

Mathematics
2 answers:
Bezzdna [24]3 years ago
6 0

Answer:

B. 439.82

Step-by-step explanation:

A=2πrh+2πr2

A=2(pi)(5)(9)+2(pi)(5) squared

A=282.74+152.07

A=439.8

-have a nice day

Montano1993 [528]3 years ago
3 0

Answer:

B. 439.82cm^2

Step-by-step explanation:

A=2\pirh +2\pir^{2}

A= 2\pi \\5(9) + 2\pi5^{2}

A=439.82 cm^2

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Shtirlitz [24]
-6 is the correct answer
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the expression 15 a + 12 C is the cost in dollars of a admission at an amusement park for a adults and see children find the tot
Blizzard [7]

Answer:

<em>$195</em>

Step-by-step explanation:

15a + 12c

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Charlotte is redecorating the master bedroom in her house. She has purchased a new bedroom set and also plans to paint the room
nasty-shy [4]
Dimensions of the room------------------- >16*13
1 in---------------- >0.0833333 foot
3 in----------------- >x
x=3*.0833333=0.25 ft
Let
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C-------------- > (16+2*0.25)*(13+2*0.25)---------- > (16.50)*(13.50)=222.75 ft</span>²
<span>
The answer a the question 1) is 16.50 feet X 13.50 feet</span>

The answer a the question 2) is 222.75 ft²

<span>3. How many hours should it take for the four-person crew to lay the flooring in Charlotte's bedroom?

if </span><span>two-person carpet crew can lay 50 square feet of carpet---------- > 1 hour</span><span>
four person </span>carpet crew can lay 100 square feet of carpet---------- > 1 hour

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6 0
3 years ago
A force of 10 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work is done in stretching it
Troyanec [42]

Answer:

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= 1/2ft

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W = 15(1/2)^2 - 15(0)^2

W = 15(1/4) - 0

W = 15/4 ft. Ib

4 0
3 years ago
How are reflections described mathematically
klemol [59]

Answer: When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite (its sign is changed). ... the line y = x is the point (y, x). The reflection of the point (x,y) across. the line y = -x is the point (-y, -x).

Step-by-step explanation: I hope this helped! Actually, I just hope that my answer is correct but whatevs lol :)

6 0
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