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3 years ago

Change: f(x) = (x+2) (x-2) to standard form

Mathematics

1 answer:

Cerrena [4.2K]3 years ago

3 0

Answer:

X^2 -4

Step-by-step explanation:

Not entirely sure but would u just expand the brackets. As this is a difference between 2 squares the answer should be correct but it not sure.

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Karen has to buy 8 people gifts, and she wants to spend the same amount on each person. Which equation would help her determine

ValentinkaMS [17]

$32/8=Answer
Answer=$4
She can spend $4 on each person.

Hope this helps!

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3 years ago

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What is the LCM of 13 and 52

dedylja [7]

Answer:

(also if u can, can u please answer my english question ive literally asked like 10 other people)

Step-by-step explanation:

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3 years ago

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The grade point averages of a large population of college students are approximately normally distributed with a mean of 2.4 and

ivanzaharov [21]

Answer:

0.2266

Step-by-step explanation:

We know that the grade point averages of a large population of college students are approximately normally distributed with a mean of 2.4 and a standard deviation of 0.8. The z-score related to 3.0 is computed as (3.0-2.4)/0.8 = 0.75. Therefore the probability that a randomly selected student will have a grade point average in excess of 3.0 is P(Z > 0.75) where Z comes from a standard normal distribution. So, P(Z > 0.75) = 0.2266

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2 years ago

Vanessa draws one side of an equilateral triangle ABC on the coordinate plane at points A(-2, 1) and B (4, 1). What are the two

Readme [11.4K]

Answer:

two vertex are: (1 , 6.2) , (1 , - 4.2)

Step-by-step explanation:

A(-2, 1) and B (4, 1) AB is a parallel segment with x axis

The 3rd vertex P (x , y) will locate at the mid point of AB

x = (-2) + (4 - (-2)) /2 = 1 P (1 , y)

length AB = 4 - (-2) = 6

AP = AB (equilateral)

BP² = (4 - 1)² + (1 - y)² = 6²

1 - 2y + y² = 36 - 9 = 27

y² - 2y -26 = 0

y = ((-(-2)) ± √(-2)² - 4 x (-26)) / 2 = (2 ± √108) / 2 = 1 ± 5.2

y = 6.2 or y = -4.2

P (1 , 6.2) or P ( 1 , -4.2)

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3 years ago

Which is the correct solution to -6x < 18?

marysya [2.9K]

Hello there! :)

Answer:

$\boxed{x>-3}$

<u><em>*The answer must have a NEGATIVE sign.*</em></u>

Step-by-step explanation:

First, you multiply by -1 both sides of an equation.

$(-6x)(-1)>18(-1)$

Then, simplify.

$6x>-18$

Divide by 6 both sides of an equation.

$\frac{6x}{6}>\frac{-18}{6}$

Divide by the numbers from left to right.

$-18/6=-3$

Final answer is →→→ $\boxed{x>-3}$

Hope this helps!

Have a nice day! :)

-Charlie

Thank you!

5 0

3 years ago