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Studentka2010 [4]
3 years ago
10

Which expression is equivalent to 3y+4+y

Mathematics
1 answer:
Colt1911 [192]3 years ago
8 0
The answer to this question is 4y+4
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help in need help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Aleks [24]

answer is 2+ 1/4x + 1 the simplest form is x= -3/4 or -0.75
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2 years ago
Solve the inequality 13 > 3x + 1
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4 > x

step by step explanation:

13 > 3x + 1
-1 -1
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What is the probability of
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Hope this helps:)

Step-by-step explanation:

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3 years ago
Is the mean age at which American children learn to walk less than 15 months? A study of 40 American children found a mean walki
Sonbull [250]

Answer:

We define the random variable X as the walking age and we are interested if American children learn to walk less than 15 months so then that would be the alternative hypothesis and the complement would be the null hypothesis.

Null hypothesis: \mu \geq 15

Alternative hypothesis: \mu

And for this case the best answer would be:

H 0 : μ ≥ 15 vs. Ha : μ < 15

Step-by-step explanation:

We define the random variable X as the walking age and we are interested if American children learn to walk less than 15 months so then that would be the alternative hypothesis and the complement would be the null hypothesis.

Null hypothesis: \mu \geq 15

Alternative hypothesis: \mu

And for this case the best answer would be:

H 0 : μ ≥ 15 vs. Ha : μ < 15

And the data given from the sample is:

\bar X = 13.2 represent the sample mean

\sigma represent the population deviation

n = 40 represent the sample size

And the statistic would be given by:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

8 0
3 years ago
Can someone solve this
Pani-rosa [81]

Answer:

m=5

c=-7

Step-by-step explanation:

m is slope

c is the intercept on the y axis

Mark me brainliest pls

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