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2 years ago

( 4x2 - 4 ) = ( 2x - 2)(2x + ---)

Mathematics

1 answer:

Ad libitum [116K]2 years ago

4 0

Answer:

4x^2-4 = 4(x+1)(x-1)

REMEMBER: factoring a perfect square

Step-by-step explanation:

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What is the tangent of angle P? 12/13 5/13 12/5 5/12

scoundrel [369]

Tangent is opposite side/ adjacent side
TanP = 5/12
Hope it helped!

3 0

3 years ago

The amount of Jen’s monthly phone bill is normally

vredina [299]

Answer:

$P(19$

And we can find this probability with this difference and using the normal standard distribution

$P(-3$

Step-by-step explanation:

Let X the random variable that represent the amount of Jen monthly phone of a population, and for this case we know the distribution for X is given by:

$X \sim N(55,12)$

Where $\mu=55$ and $\sigma=12$

We are interested on this probability

$P(19$

And we can use the z score formula given by:

$z=\frac{x-\mu}{\sigma}$

Replacing the info we got:

$P(19$

And we can find this probability with this difference and using the normal standard distribution

$P(-3$

7 0

3 years ago

Find the area of a circle with a circumfrence of 53.41 inches

netineya [11]

About 224.7 I think. I hope this helps

7 0

2 years ago

Read 2 more answers

Round 307 to neatest tens

hammer [34]

310 is the nearest tenth

5 0

3 years ago

Read 2 more answers

Vector u has initial point at (3, 9) and terminal point at (–7, 5). Vector v has initial point at (1, –4) and terminal point at

spin [16.1K]

Answer:

⟨-5, -1⟩

Step-by-step explanation:

Vector:

A vector is given by its endpoint subtracted by its initial point.

Vector u has initial point at (3, 9) and terminal point at (–7, 5)

Then

$u = (-7, 5) - (3,9) = (-7 - 3, 5 - 9) = (-10,-4)$

Vector v has initial point at (1, –4) and terminal point at (6, –1).

Then

$v = (6,-1) - (1,-4) = (6-1,-1-(-4)) = (5,3)$

What is u + v in component form?

$u + v = (-10,-4) + (5,3) = (-10+5,-4+3) = (-5,-1)$

⟨-5, -1⟩ is the answer.

3 0

2 years ago