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Natasha2012 [34]
3 years ago
5

Given the a center (-1, -2) and a radius r = 2. Identify the circle.

Mathematics
1 answer:
Tatiana [17]3 years ago
8 0

Answer:

1st option

1st graph has the centre on (-1,-2) and the distance of the circumference from the centre is 2

Answered by GAUTHMATH

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The Pear company sells pPhones. The cost to manufacture x pPhones is C ( x ) = - 21 x² + 67000 x + 20006 dollars (this includes
pishuonlain [190]

Answer:

Company should produce 8000 phones for the maximum profit.

Step-by-step explanation:

Function representing cost to the manufacturer is,

C(x) = -21x²+ 67000x + 20006

Function that represents the revenue generated is,

R(x) = -28x² + 179000x

Function representing profit to the company,

Profit = Revenue generated - Cost price

         = -28x² + 179000x - (- 21x² + 67000x + 20006)

         = -28x² + 21x² + 179000x - 67000x - 20006

 P(x)  = -7x² + 112000x - 20006

Since this function is a quadratic function therefore, the maximum price generated will be for

x=-\frac{b}{2a}

From the given quadratic function, a = (-7), b = 112000 and c = -20006

Therefore, for x=-\frac{112000}{2\times (-7)}

Or x = 8000 the profit to the company will be maximum.

That means pear company should produce 8000 phones for the maximum profit.

7 0
3 years ago
A rectangular prism has a length of 12 cm and a width of 4 cm. if the volume of the prism is 240 cm 3 , what is the height?
Keith_Richards [23]
The formula for volume of a rectangular prism is L x W x H

we can replace the letters with the information given and then solve for the missing letter:

240 cm^3 = 12 x 4 x H

multiply 12 and 4:

240 = 48 x H

now to solve for H divide both sides by 48:

h = 240/48
H = 5
 the height is 5 cm
6 0
3 years ago
Can you help me solve this problem
Fiesta28 [93]
112 <span>≥ b+128

First: You would subtract 128 on both sides of your sign
You would get: -16</span><span>≥ b <That is your answer

HOPE THIS HELPS! ^_^</span>
7 0
4 years ago
Read 2 more answers
At a grocery store, 7 apples and 2 oranges will cost $12.80. In addition, 6 apples and 3
Pachacha [2.7K]

Answer:

Equation 1: 7x + 2y = 12.8

Equation 2: 6x + 3y = 12

Cost of 1 apple: $1.60

Cost of 1 orange: $0.80

Cost of 1 orange: $Step-by-step explanation:

Let's use the elimination method to solve this

Multiply equation 1 by 3

(7x + 2y = 12.8) x 3 = 21x + 6y = 38.4

Multiply equation 2 by -2

(6x + 3y = 12) x -2 = -12x - 6y = -24

The x terms will cancel each other out

21x + 6y = 38.4

-12x - 6y = -24

9x = 14.4

Divide by sides by 9 to isolate the x variable

9x/9 = 14.4/9

x = 1.6

This means an apple costs $1.60

Plug the new x into one of the original equations to find y; we'll use equation 1

7(1.6) + 2y = 12.8

11.2 + 2y = 12.8

Subtract 11.2 from both sides

11.2 + 2y = 12.8

- 11.2        - 11.2

2y = 1.6

Divide both sides by 2

2y/2 = 1.6/2

y = 0.8

This means an orange costs $0.80

4 0
3 years ago
Solve 5[8-(9x-7)]+6x=0
evablogger [386]
5[8-(9x-7)]+6x=0
5[8-9x+7]+6x=0
5[15-9x]+6x=0
75-45x+6x=0
75-39x=0
x=25/13
3 0
3 years ago
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