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IceJOKER [234]
2 years ago
9

PLEASE HELP MEEE If it is 11:45 a.m., what will the time be 3 hours and 15 minutes later?

Mathematics
1 answer:
Nikitich [7]2 years ago
5 0

Answer:

2:45 pm for three hours so the time would be 3:00 pm

You might be interested in
Odd number, greater than 142, less than 156, what is the mystery number
TiliK225 [7]
145 will work. It is an odd number and is greater than 142 and is less than 156

142 < 145 < 156

Other numbers such as 143, 147, 149,151,153, 155 will work.
4 0
2 years ago
The function f(x) is a cubic function and the zeros of f(x) are -6, -3 and 1. The
jarptica [38.1K]

Answer:

P(x)=-5x^3-40x^2-45x+90

Step-by-step explanation:

<u>Equation of a Polynomial</u>

Given the roots x1, x2, and x3 of a cubic polynomial, the equation can be written as:

P(x)=a(x-x1)(x-x2)(x-x3)

Where a is the leading coefficient.

We know the three roots of the polynomial -6, -3, and 1, thus:

P(x)=a(x+6)(x+3)(x-1)

Since the y-intercept of the polynomial is y=90 when x=0:

90=a(0+6)(0+3)(0-1)

90=a(6)(3)(-1)=-18a

Thus

a = 90/(-18) = -5

The polynomial is:

P(x)=-5(x+6)(x+3)(x-1)

We must write it in standard form, so we have to multiply all of the factors as follows:

P(x)=-5(x^2+6x+3x+18)(x-1)

P(x)=-5(x^2+9x+18)(x-1)

P(x)=-5(x^3-x^2+9x^2-9x+18x-18)

P(x)=-5(x^3+8x^2+9x-18)

\boxed{P(x)=-5x^3-40x^2-45x+90}

3 0
2 years ago
Question 2
notka56 [123]
60° bc 25+35=60, 180-60=20, 180-20=60, 60+60+x=180; x=60
6 0
2 years ago
Read 2 more answers
Please Help This Is Math
stira [4]

Answer:

-3

Step-by-step explanation:

5 0
3 years ago
How many observations are there for each case in a t test for dependent samples?
Oxana [17]

The number of observations for each case in a t test for dependent samples is two is the correct answer.

In this question,

The dependent t-test also called the paired t-test or paired-samples t-test compares the means of two related groups to determine whether there is a statistically significant difference between these means. Each sample must be randomly selected from a normal population and each member of the first sample must be paired with a member of the second sample.

A dependent samples t-test uses two raw scores from each person to calculate difference scores and test for an average difference score that is equal to zero.

The groups contain either the same set of subjects or different subjects that the analysts have paired meaningfully. In dependent samples, subjects in one group do provide information about subjects in other groups.

Hence we c an conclude that the number of observations for each case in a t test for dependent samples is two is the correct answer.

Learn more about dependent t-test here

brainly.com/question/15870238

#SPJ4

5 0
2 years ago
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