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Blababa [14]
3 years ago
5

B) 6x(x - 2y) + 5y(x – 2y)​

Mathematics
1 answer:
Tcecarenko [31]3 years ago
7 0

answer:

6x(x - 2y) + 5y(x – 2y)​

= 6x^2 - 12xy + 5xy - 10y^2

= 6x^2 - 7xy - 10y^2

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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
Zach's chemistry textbook weighs 2/3 of a pound and his geometry textbook weighs 1/3 of a pound. How much more does the chemistr
gizmo_the_mogwai [7]
2/3 lb. - 1/3 lb. = 1/3 lb.
check: 1/3 lb. + 1/3 lb. = 2/3lb
ANSWER 》1/3 lb. MORE
5 0
3 years ago
If ABCD is dilated by a factor of 3, the
vaieri [72.5K]

Answer:

i think it would be (6, -6)

Step-by-step explanation:

if the letter d is already at (2, -2) you have to multiply those numbers by 3. that gives the coordinates (6, -6)

6 0
3 years ago
Which statement correctly describes the relationship between quadrilateral ABCD and quadrilateral A′B′C′D′ ? An x y coordinate p
Keith_Richards [23]

The answer is; "Quadrilateral ABCD ​ is congruent to ​ quadrilateral A′B′C′D′ ​ because you can map ​ quadrilateral ABCD ​ to ​ quadrilateral A′B′C′D′ ​ using a translation 7 units to the right, which is a rigid motion."

4 0
4 years ago
What is the estimated sum when 3,467 and
Korolek [52]

Answer:

about 12,000

Step-by-step explanation:

3,467 is rounded to 3,000

8,908 is rounded to 9,000

7 0
3 years ago
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