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Umnica [9.8K]
3 years ago
14

Write as a product of two polynomials: (x-y)^2-a(y-x)

Mathematics
1 answer:
sattari [20]3 years ago
3 0

Answer:

(x - y)(x - y + a)

Step-by-step explanation:

(x-y)^2-a(y-x) \\  \\  = (x-y)^2 + a(x - y) \\  \\ =  (x - y) \{(x - y) + a \} \\  \\ =  (x - y)(x - y + a)

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Which of the following equations represents a line that is perpendicular to the line represented by - 3x + 19y - 18?
Lemur [1.5K]

Answer:

I'm bad at math sorry I need help with social studies. helppppppp

Step-by-step explanation:

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7 0
3 years ago
Sophia owns a clothing store that sells graphic T-shirts. n is the number of
goldenfox [79]

Answer:

n = 150

Step-by-step explanation:

If n is the number of T-shirt sell each month, then the revenue function of Sophia's store is r = 21n .......... (1)

and the cost function of her store is C = 16n + 750 ........ (2)

Now, at break-even point, the revenue of a business is equal to its cost.

Therefore, r = C {From equations (1) and (2)}

⇒ 21n = 16n + 750

⇒ 5n = 750

⇒ n = 150

So, the break-even point of the store will occur when the number of T-shirt production is 150. (Answer)

8 0
3 years ago
A certain lot consisting of ten items has three defective items and seven nondefective items. How many possible subsets of 2 ite
Charra [1.4K]

Answer:

45

Step-by-step explanation:

The order in which the items are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

How many possible subsets of 2 items can be chosen from this lot?

Combinations of 2 from a set of 10. So

C_{10,2} = \frac{10!}{2!(10-2)!} = 45

4 0
3 years ago
Find the area of a semicircle.<br>a 4.7 yd​
Anika [276]

Answer:

.

Step-by-step explanation:

Dont know if this helps but heres something.

A = πr²/2 = 1938.900992 * π [yd²] ≈ 4.7 [yd²]

Use this if you want to

https://www.omnicalculator.com/math/semicircle-area

4 0
3 years ago
What are the coordinates of the y-intercept of the function y=|6x-5|-4
Ket [755]

Answer: (0,1)

Step-by-step explanation:

Hope this helps

8 0
3 years ago
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