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3 years ago

CAN SOMEONE PLEASE HELP ME OUT??

Mathematics

1 answer:

Elena L [17]3 years ago

8 0

Answer:

D. -1≤x<4

Step-by-step explanation:

4-x<0 and x+1≥0

x<4 and x≥-1

so D. -1≤x<4

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Find the slope of the line y = 4/7x − 5/8 .

otez555 [7]

Answer:

The slope should be m= 4/7

Step-by-step explanation:

i hope this helps a little <3 have a awesome day

5 0

3 years ago

A 90% confidence interval for the mean percentage of airline reservations being canceled on the day of the flight is (1.1%, 3.2%

defon

Error = 1/2(Maximum range - Minimum range) = 1/2(3.2-1.1) = % = 0.0105

If p is the point estimator;

Then,
Minimum range = p - Error
Maximum range = p + Error

Solving one of the two expressions,
0.011 = p - 0.0105 => p = 0.011+0.0105 = 0.0215 = 2.15%

6 0

3 years ago

Read 2 more answers

The sum of 10 and a product of 7 and a number

NeX [460]

The answer to your question, would be 7x + 10.

Hopefully this helps!

8 0

4 years ago

Can somebody pretty please help me please

Basile [38]

9514 1404 393

Answer:

A. $4006

Step-by-step explanation:

The total tax due is the sum of the amounts due in each applicable bracket.

$970 +3,036 = $4,006

_____

<em>Additional comment</em>

There are easier ways to compute the tax, but this is the way shown on many tax forms.

7 0

3 years ago

Suppose that the probability that a person will develop hypertension over a life time is 60%. Of 13 graduating students from the

Savatey [412]

Answer:

The mean number of the students who develop hypertension over a life time is 7.8.

Step-by-step explanation:

For each person, there are only two possible outcomes, either they will develop hypertension, or they will not. The probability of a person developing hypertension is independent of any other person, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

Probability of exactly x successes on n repeated trials, with p probability.

The expected value of the binomial distribution is:

$E(X) = np$