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4 years ago

Factor and simplify: (a^2+2a)^2-2(a^2+2a)-3

Mathematics

1 answer:

Alinara [238K]4 years ago

8 0

The answer is $a^4+4a^3+2a^2-4a-3$

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Use the grouping method to factor the polynomial below completely.<br> +3 - 4x² + 3x - 12

ahrayia [7]

Answer:

The answer is “B”

Step-by-step explanation:

Group and factor out the greatest common factor (GCF), then combine.

3 0

3 years ago

A soft drink machine outputs a mean of 24 ounces per cup. The machine's output is normally distributed with a standard deviation

Arisa [49]

Answer:

$P(21$

And we can find the probability with this difference

$P(-1$

And using the normal standard distribution or excel we got:

$P(-1$

Step-by-step explanation:

Let X the random variable that represent the soft drink machine outputs of a population, and for this case we know the distribution for X is given by:

$X \sim N(24,3)$

Where $\mu=24$ and $\sigma=3$

We want to find this probability:

$P(21$

The z score is given by:

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

Using this formula we got:

$P(21$

And we can find the probability with this difference

$P(-1$

And using the normal standard distribution or excel we got:

$P(-1$

7 0

3 years ago

WILL GIVE BRAINIEST!!! IF UR ANSWER IS RIGHT

Natasha2012 [34]

Answer:

-1

Step-by-step explanation:

the slope of this one is y=x-21

in order for it to be perpendicular the sign changes and the slope flips

but because the slope is 1 you just change the slope to -1

4 0

3 years ago

Really don’t understand this question

Ilya [14]

Answer:

∠ 2 = 48°

Step-by-step explanation:

the 2 angles form a right angle = 90°

sum the 2 angles and equate to 90°

∠ 2 + 44° = 90° ( subtract 44° from both sides )

∠ 2 = 48°

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1 year ago

Tim has 5 basketball cards marry bought 2 of Tim’s baseball cards . How many baseball cards does Tim have now?

Gwar [14]

3 because 5-2 equals 3

8 0

4 years ago