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GrogVix [38]
3 years ago
7

HELP ASAP!! Sorry if it’s hard to see. The second answer options are, 4.15, 2.33, 17.2

Mathematics
1 answer:
nirvana33 [79]3 years ago
3 0

Answer:

r = \sqrt{\frac{A}{\pi } }

r = 17.2 cm

Step-by-step explanation:

∵ The area of the circle A = πr²

∴ r² = A/π

∴ r = √(A/π)

∵ A = 54 cm²

∵ π = 22/7

∴ r = √(54/(22/7)) = √(54×7/22) = 17.2 cm

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kotegsom [21]

Answer:

22 and 31

Step-by-step explanation:

from the table we know that f(0) = 22 and f(-3) = 31

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3 years ago
Hello :) <br> Please help me solve this <br><br> Explain answer
USPshnik [31]

Answer:

Scale\ Factor = \frac{1}{2}

ABC dilated

Step-by-step explanation:

Given

Triangles ABC and DEF

Required

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DE = 3

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Scale\ Factor = \frac{DE}{AB}

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5 0
3 years ago
Jackson earns $10 per hour mowing lawns. If he earns
nydimaria [60]

Answer:

Step-by-step explanation:

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3 years ago
Read 2 more answers
Find the critical points, domain endpoints, and local extreme values for the function
aliina [53]

Answer:

a) x = -3, b) x = 0, x = -6, c) x = 0, d) x = -6

Step-by-step explanation:

a) Let derive the function:

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f'(x) is undefined when denominator equates to zero. The critical point is:

x = -3

b) f'(x) = 0 when numerator equates to zero. That is:

10\cdot x \cdot (x+3) - 5\cdot x^{2} = 0

10\cdot x^{2}+30\cdot x -5\cdot x^{2} = 0

5\cdot x^{2} + 30\cdot x = 0

5\cdot x \cdot (x+6) = 0

This equation shows two critical points:

x = 0, x = -6

c) The critical points found in point b) and the existence of a discontinuity in point a) lead to the conclusion of the existence local minima and maxima. By plotting the function, it is evident that x = 0 corresponds to a local maximum. (See Attachment)

d) By plotting the function, it is evident that x = -6 corresponds to a local minimum. (See Attachment)

8 0
3 years ago
Northwest Molded molds plastic handles with a variable cost of $1.00 per handle. The fixed cost to run the molding machine is $2
ASHA 777 [7]

Answer:

To break even it  must be molded 1280 handles weekly.

The profit if 1500 handles are produced and sold is $440

Step-by-step explanation:

To break even, the amount of total cost must be the same as the amount of revenues.  

Total Cost is Fixed cost plus unitary variable cost multiplied by the produce quantity.  

Total cost= FC + vc*Q

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P=$3.00 *1500-$2560 - $1.00*1500=

P=$4500-$2560-$1500=440

8 0
3 years ago
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