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3 years ago

Parker was given this problem on his homework:−7(b+5).

Mathematics

1 answer:

RUDIKE [14]3 years ago

7 0

Answer:

2/3 of the students in a class are girls. if there are 20 boys in the class. then the totoal number of girls isthe length of abhishek's notebook is 17cm and 8 mm. What will be its length in cm2/3 of the students in a class are girls. if there are 20 boys in the class. then the totoal number of girls isthe length of abhishek's notebook is 17cm and 8 mm. What will be its length in cm2/3 of the students in a class are girls. if there are 20 boys in the class. then the totoal number of girls is

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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

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

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3 years ago

Help pls ! <br> (Don’t type just to type)

Alex17521 [72]

Given equation

Combine like terms

Addition or subtraction property of like terms

Multiplication or division of property of equality

Addition or subtraction property of like terms

And then your answer or (given equation I’m assuming

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3 years ago

What is 2(x+6)=2(6+1/3x)

Lerok [7]

Answer:

x=0

Step-by-step explanation:

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3 years ago

Pls help and give only correct answers

ivolga24 [154]

Answer:b

Step-by-step explanation:

i took that test

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3 years ago

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Marrrta [24]

You will lay the yardsrick down flat & see how many inches the rug is, if needed , do it multiple times and add inches together.

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4 years ago