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3 years ago

What would the answer be

Mathematics

1 answer:

Mrac [35]3 years ago

3 0

Answer:

(x,y) (2,-1)

Step-by-step explanation:

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Suppose a publishing company estimates that its monthly cost is C(x) = 600{x^2} + 300xC(x)=600x 2 +300x and its monthly revenue

Leto [7]

Answer:

the answer is A,

P(x) = -0.4x³+100x²-900x+500

Step-by-step explanation:

monthly cost:

$c(x) = 600x {}^{2} + 300x$

monthly revenue:

$r(x) = - 0.4 {}^{3} + 700x {}^{2} - 600x + 500$

profit function:

$p(x) = r(x) - c(x)$

$p(x) = ( - 0.4x {}^{3} + 700 {x}^{2} - 600x + 500) - (600x {}^{2} + 300x)$

i) remove the first bracket

$p(x) = - 0.4x {}^{3} + 700x {}^{2} - 600x + 500 - (600 {x}^{2} + 300x)$

ii) there is a negative sign, '-' in front of the second bracket. so, change the sign of each term of the expression inside the bracket

$p(x) = - 0.4x {}^{3} + 700 {x}^{2} - 600x + 500 - 600x {}^{2} - 300x$

iii) collect like terms

$p(x) = - 0.4x {}^{3} + 700 {x}^{2} - 600 {x}^{2} - 600x - 300x + 500$

iv) simply the like terms

$p(x) = - 0. 4{x}^{3} + 100 {x}^{2} - 900x + 500$

6 0

3 years ago

What is 1 plus 894? I need help please

labwork [276]

It's is 895 because u add 4 with 1 so yeah it's 895

3 0

3 years ago

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Each game costs $1.25 and each ride costs $2.75. A boy spent $20.25 all together at the carnival and the number of rides he went

a_sh-v [17]

Answer:

3 games and 6 rides

Step-by-step explanation:

3 0

3 years ago

Sally had $26. Then she earned some more money doing chores.

stich3 [128]

Answer:

Step-by-step explanation:

Sally started with $26 and ended with $35 meaning she earned money

If she began with a lower number than she started with, you have to subtract the greater number by the lower to find the difference

35-26 = 9

THEREFORE she made $9 doing chores

3 0

3 years ago

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What is the measure of XYZ?

Anuta_ua [19.1K]

<XYZ = 1/2(86 + 44)

<XYZ = 1/2 (130)

<XYZ = 65

Answer

B. 65

8 0

4 years ago

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