All categories

3 years ago

Help?! Please I don't understand

Mathematics

1 answer:

Brums [2.3K]3 years ago

8 0

Which one do you need help with??

You might be interested in

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

Find the area of the geometric figure.<br> 3 yd<br> 3 yd<br> Traperoid<br> 7 yd

Reika [66]

Step-by-step explanation:

The question isn't clear, so I'll just give you a formula to find the area of trapezoid,

(a+b)*h/2, where a = base side, b = top side, h = height.

So, let's say two sides are 3 yd and 7 yd, and height is 3 yd, so the area becomes,

(3+7)*3/2

= 10*3/2

= 30/2

= 15 yd²

Answered by GAUTHMATH

8 0

3 years ago

Which is greater 1/3 or 30%

Brilliant_brown [7]

30% = 30/100 = (30 x 3)/(100 x 3) = 90/300

1/3 = (1 x 100)/(3 x 100) = 100/300

As 90/300 < 100/300

Therefore 30% < 1/3

4 0

4 years ago

Figure B is a scaled copy of Figure A. What is the scale factor from Figure A to Figure B?

ElenaW [278]

Answer:

scale factor = $\frac{1}{3}$

Step-by-step explanation:

Compare the ratio of corresponding sides, image to original.

scale factor = $\frac{3}{9}$ = $\frac{1}{3}$

7 0

3 years ago

Two distinct lines intersect in more than one point. TRUE OR FALSE

SOVA2 [1]

True if there was more then one then it wouldn't be 2 lines it would be one or a line and a curve

4 0

3 years ago