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mrs_skeptik [129]
3 years ago
14

Using the rules for special cases, what is the result of?

Mathematics
2 answers:
Arlecino [84]3 years ago
8 0

Answer:

C) 4x^2 -8x +4[/tex]

Step-by-step explanation:

(-2x+2)^2

we apply (a+b)^2 formula

(a+b)^2 = a^2 + 2ab +b^2

a= -2x  and b= 2

Replace 'a' with -2x  and 'b' with 2

(-2x+2)^2 = (-2x)^2 + 2(-2x)(2) +2^2

(-2x)^2 is 4x^2

(-2x+2)^2 = 4x^2 -8x +4

option C is the answer



lakkis [162]3 years ago
5 0

Answer:

The correct answer is Option C 4x² -8x + 4

Step-by-step explanation:

(a + b)² = a² +  2ab + b²

<u>To find (-2x + 2)²</u>

Here a = -2x and b = 2

(-2x - 2)² = (-2x)² + 2*(-2x)*2 + 2²

(-2x - 2)² = 4x² -8x + 4

Therefore the correct  answer is option C . 4x² -8x + 4

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rosijanka [135]

Answer:

7/16

Step-by-step explanation:

4 0
3 years ago
Given the system of equations, what is the solution?<br><br> x + 2y = 7<br> x - 2y = -1
Reika [66]
Add the 2 equations to eliminate the 2y. We get

2x = 6

x = 3

Plug x = 3 into the first equation:-

3 + 2y = 7
2y = 7 - 3 = 4

y = 2


Answer is x = 3 and y = 2
4 0
3 years ago
Alfredo has different colored spiral notebooks in his backpack. Which of the following models could be used to simulate a 1 in 3
BartSMP [9]

Answer:

the fourth option

Step-by-step explanation:

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.

Probability of choosing a red spiral = number of red spiral / total sum of spirals in the bag

1st option = 2 / 4 = 1/2

2nd option = 4/8 = 1/2

3rd option = 2/3

4th option = 2/6 = 1/3

the fourth option is correct

4 0
2 years ago
X+½x+7y=0 what is the value of y=?​
Ganezh [65]

Answer:

\frac{-3x}{14}

Step-by-step explanation:

x+\frac{1}{2}x+7y = 0\\

1.5x + 7y = 0

7y = -1.5x

y = \frac{-1.5x}{7}

= \frac{-3x}{14}

Hope this helps :)

7 0
2 years ago
Read 2 more answers
The table below shows the price in dollars for the number of roses indicated is the price proportional to the number of roses ex
makvit [3.9K]

Answer:

Price of roses is proportional to the number of roses.

Step-by-step explanation:

Let the price of roses are proportional to the number of roses.

Equation representing this phenomenon will be,

P = k(R) ⇒ k = \frac{P}{R}

where 'P' = price of the roses

R = Number of roses

k = Proportionality constant

If we substitute the values of P and R and we get the same value of constant 'k', then the equation will be true.

For R = 3 and P = $9  

k = \frac{9}{3}

k = 3

For R = 6 and R = 18

k = \frac{18}{6}

k = 3

K is same in both the conditions, therefore, Price of roses are proportional to the number of roses.

6 0
2 years ago
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