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Lostsunrise [7]
3 years ago
15

Find the product of (x − 8)^2 and explain how it demonstrates the closure property of multiplication.

Mathematics
2 answers:
Goryan [66]3 years ago
6 0

Answer:x^2-16x+64

Step-by-step explanation:

in the attachment

Alona [7]3 years ago
6 0

Answer:

I know for sure that it’s x^2 - 16x + 64 is a polynomial

Step-by-step explanation:

I just took the test.

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The quantity demanded x of a certain brand of DVD player is 3000/week when the unit price p is $485. For each decrease in unit p
ANTONII [103]

Answer:

Demand Equation: q = 15125 - 25p.

Supply Equation: 80p - 24000 = 9q.

Equilibrium Price: $525.

Equilibrium Quantity: 2000 units.

Step-by-step explanation:

To solve this question, first, the demand equation has to be calculated. Let price be on the y-axis and quantity by on the x-axis. It is given that p = $485 when q = 3000 units. This can also be written as (q₁, p₁) = (3000, 485). It is also given that when the price goes down by $20, the quantity increases by 500 units. Therefore, (q₂, p₂) = (3500, 465). Due to the statement "For each decrease in unit price of $20 below $485, the quantity demanded increases by 500 units", the demand function will be linear i.e. a straight line. This is because the word "for each" has been used. Therefore, finding the equation of the demand function:

(p - p₁)/(q - q₁) = (q₂ - q₁)/(p₂ - p₁).

(p - 485)/(q - 3000) = (465 - 485)/(3500 - 3000).

(p - 485)/(q - 3000) = (-20)/(500).

(p - 485)/(q - 3000) = -1/25.

25*(p - 485) = -1*(q - 3000).

25p - 12125 = -q + 3000.

25p + q = 15125.

q = 15125 - 25p. (Demand Equation).

Second, find the supply equation. It is given that the suppliers will not sell the product below or at the price of $300. Therefore, (q₁, p₁) = (0, 300). Also, the suppliers will sell 2000 units if the price is $525. Therefore, (q₂, p₂) = (2000, 525). Since it is mentioned that supply equation is linear, therefore:

(p - p₁)/(q - q₁) = (q₂ - q₁)/(p₂ - p₁).

(p - 300)/(q - 0) = (525 - 300)/(2000 - 0).

(p - 300)/(q) = (225)/(2000).

(p - 300)/(q) = 9/80.

80*(p - 300) = 9*(q).

80p - 24000 = 9q. (Supply Equation).

Equilibrium exists when demand = supply. This means that the demand and the supply equations have to be solved simultaneously. Therefore, put demand equation in supply equation:

80p - 24000 = 9(15125 - 25p).

80p - 24000 = 136125 - 225p.

305p = 160125.

p = $525.

Put p = $525 in demand equation:

q = 15125 - 25p.

q = 15125 - 25(525).

q = 15125 - 13125.

q = 2000 units.

To summarize:

Demand Equation: q = 15125 - 25p!!!

Supply Equation: 80p - 24000 = 9q!!!

Equilibrium Price: $525!!!

Equilibrium Quantity: 2000 units!!!

8 0
3 years ago
If I roll a 6 sided dice and then flip a coin,
lina2011 [118]

Answer:

1/12

Step-by-step explanation:

5 0
2 years ago
Can someone help please and thank you.
natita [175]

5)

Equilateral triangle, all sides are equal

So 2x + 5 = 11

2x = 6

x = 3

Answer is the first one

3; Equilateral theorem


6)

Isosceles triangle has at least two congruent sides.

So 6x = 24

x = 4

Answer x = 4

Converse of the Base Angle Theorem


7)

5x + 7 = 52

5x = 45

 x = 9

Answer

x = 9

Base angle theorem


8)

5y - 14 = 3y

2y = 14

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Answer

7; Equiangular theorem


4 0
3 years ago
I NEED HELP PLSS ITS LIKE 200 POINTS
zysi [14]

Answer:

y=-3/2x+3

Step-by-step explanation:

(0,3) and (2,0) tell us that the y intercept is 3 because at x = 0, y = 3.

This leaves the first and last choice only.

We can calculate the slope by 0-3 and 2-0, so -3/2 is the slope

3 0
3 years ago
Read 2 more answers
Ftgtggggygggggggghhhhhhggghggggggggfffffff
Gekata [30.6K]

c.
greater than and less than signs have dotted lines.
greater than or equal to and less than or equal to have solid lines.
6 0
3 years ago
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