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Maurinko [17]
3 years ago
12

In a group of 85 people how many people would you expect towear glasses or contact lenses?

Mathematics
1 answer:
hammer [34]3 years ago
7 0

Answer:

At least one fourth of the people so 21.25 people.

Step-by-step explanation:


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Solve the system of equations using the substitution method.
ryzh [129]

Answer:

x

Step-by-step explanation:

8 0
3 years ago
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What is the slope of a trend line that passes through the points (1, 3) and (10, 25)?
nydimaria [60]
25-3/10-1 which is 22/9
6 0
3 years ago
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1.
Evgen [1.6K]

Answer:

Null hypothesis H_0; \mu=5

Alternative hypothesis H_a; \mu\neq 5

Step-by-step explanation:

Consider the provided information.

The shower by an adult is 5 minutes.

The mean amount of time that college students spend in the shower is significantly different from 5 minutes. In a sample of 15 students, he found the average time was 4.29 minutes and the standard deviation was 0.75 minutes.

We need to determine the appropriate null and alternative hypotheses.

A null hypothesis is there is no statistical significance between the two variables.

An alternative hypothesis is there is a statistically significant relationship between two variables.

Therefore the required null and alternative hypothesis are:

Null hypothesis H_0; \mu=5

Alternative hypothesis H_a; \mu\neq 5

3 0
3 years ago
What is the factorization of the following trinomial? 15x2 - 44x - 36
BartSMP [9]
15x^2-44x-36

=(15x^2+10x)+(-54x-36)

factor out  5x from 15x^2+10x  = 5x(3x+2)

Factor out -18 from -54x-36 =  -18(3x+2)

=5x(3x+2)-18(3x+2)

Factor out common term (3x+2)

= (3x+2)(5x-18)

hope this helps!
7 0
3 years ago
Giving brainliest!!!!!!!!!!
Brrunno [24]

Answer:

I think the answer is D.

Step-by-step explanation:

Well, if you look at the last few sentences in that picture, it says that "he earns money depending how long he babysits." It's a clue to the answer, so the answer is obviously D.

I am also sorry if my answer is wrong. It might be c but please comment on my answer if you disagree/think it's wrong.

5 0
3 years ago
Read 2 more answers
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