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3 years ago

6

How many terms are in this expression -x2 -10 + 9x -4x2

2 answers:

ivanzaharov [21]3 years ago

7 0

There are four terms:
-x2, -10, 9x, and -4x2

anzhelika [568]3 years ago

5 0

Answer:

3

Step-by-step explanation:

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3 years ago

What is the y-intercept of the line whose equation is y=1/2x-3

Aleksandr [31]

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-3

Step-by-step explanation:

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3 years ago

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klasskru [66]

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3 years ago

A sleep time of 15.9 hours per day for a newborn baby is at the 10h percentile of the distribution of sleep times for all newbor

Nuetrik [128]

Answer:

option (D) 16.5

Step-by-step explanation:

Data provided:

Sleep time of , X = 15.9 is at the 10th percentile

Standard deviation, σ = 0.5 hour

also,

10th percentile of normal distribution is

Z = F⁻¹(0.10)

or

Z = - 1.28 (Using Standard Normal distribution)

Now,

$\\Z=\frac{X-\mu}{\sigma}$

or

X = μ + ( σ × Z )

or

μ = X - ( σ × Z )

on substituting the respective values, we get

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or

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Hence, the correct answer is option (D) 16.5

8 0

3 years ago

What is the completely factored form of this expression?

Eddi Din [679]

Answer:

B.

(3x + 4)(x − 7)

Step-by-step explanation:

If you multiply.

3x2-21x+4x-28

3X2-17x-28

8 0

3 years ago