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Alona [7]
3 years ago
8

The answer to number 7

Mathematics
1 answer:
slava [35]3 years ago
5 0
The length of the rectangle in #7 is 18 ft
I cannot see which region is shaded so I will solve for both:
1.
the radius of one circle is 3:
A=\pir^{2}
A=(3.14)(9)
A=(28.26)
The area of the three circles is 84.78 feet squared

Area of rectangle is 108 feet squared (16*8)

108-84.78=23.22

The area of the shape around the circles is 23.22 feet squared

2:
The area of 1 circle is 28.26
The area of 3 circles is 84.78 feet squared
The area of the circles in the rectangle is 84.78 feet squared.

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Scorpion4ik [409]

Answer

Step-by-step explanation:

  • The number of cyclists the group needs to raise at least $57,000 must be at least 1000 cyclists
  • Let x represent the number of cyclists.
  • Since, the activists receive $60 per cyclist entry and $15,000 in donations, hence:
  • Revenue = 60x + 15000
  • Also, the cost of the race is $18 per entry, hence:
  • Cost = 18x
  • They need to raise at least $57,000, hence:
  • Profit ≥ 57000
  • Revenue - Cost ≥ 57000
  • (60x + 15000) - 18x ≥ 57000
  • 42x ≥ 42000
  • x ≥ 1000
  • Therefore the number of cyclists the group needs to raise at least $57,000 must be at least 1000 cyclists

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2 years ago
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olga2289 [7]
N is greater than or equal to -10
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3 years ago
Explain why x^2 + y^2 -6x +10y = -34 is NOT a circle. What is it?
kenny6666 [7]

Answer:

(See explanation for further details)

Step-by-step explanation:

The expression is transformed into its standard form:

x^{2} + y^{2} - 6\cdot x + 10\cdot y + 34 = 0

x^{2} - 6\cdot x + 9 + y^{2} + 10\cdot y + 25 = 0

(x-3)^{2} + (y+5)^{2} = 0

The function does not represent a circle, as radius is a positive number.

4 0
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What is 15:3 in simplist form
Sergeeva-Olga [200]

Answer: 5:1

Step-by-step explanation:

15 divided by 3 is 5, and 3 divided by 3 is 1

7 0
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