(07.05 MC)

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

6 0

Answer:

-3

Step-by-step explanation:

just did the test got a 100%

You might be interested in

Explain how you would name a sorting rule for 1 square , 1 rectangle and 1 triangle

Ivanshal [37]

A common characteristic for the shapes given is that they all consist of sides. Therefore, the most applicable sorting rule is the number of sides. In this regard, there will be two categories of the shapes given.

That is, number of sorting rule in which:
Category 1: 1 square and 1 rectangle all with four sides.
Category 2: 1 triangle with three sides.

5 0

4 years ago

A survey was conducted that asked 1011 people how many books they had read in the past year. results indicated that x overbarequ

Tcecarenko [31]

Since we do not know the population standard deviation, we will use the t-distribution to construct the 90% confidence interval of the mean number of books people read. The value of $t_{\frac{\alpha }{2}}$ with 1010 degrees of freedom and with alpha equals to 0.10 is 1.64

First, we need to solve for the margin of error, E.
$E=t_{\frac{\alpha }{2}}\cdot \frac{s}{\sqrt{n}}=1.64\cdot \frac{16.6}{\sqrt{1011}}=0.86$

The lower bound of the confidence interval is
$LB=\overline{x}-E=14.8-0.86=13.94$

The upper bound of the confidence interval is
$LB=\overline{x}+E=14.8+0.86=15.66$

Therefore, the 90% confidence interval is (13.94, 15.66).

We are 90% confident that the interval from 13.94 books to 15.66 books does contain the true value of the population mean number of books people read.

4 0

4 years ago

PLEASE SOMEONE HELP IM SO CLOSE TO BEING DONE FOR THE YEAR <br> NO LINKS OR FILES

8_murik_8 [283]

Answer:

Step-by-step explanation:

The negative out front only tells us which way the parabola will open. That means that the first one will open upside down, since it's got a negative out front. The value of the number that serves as the leading coefficient (the number stuck to the x-squared) determines how steep or wide-open the parabola's shape is. The leading coefficient in the first one is a 1, so it opens up exactly as wide as its parent graph does. The leading coefficient in the second one, a 2, means that the parabola will be skinnier or narrower than its parent. If the leading coefficient is greater than 1, the parabola will be narrower than its parent; if the leading coefficient is greater than 0 but less than 1, the parabola will open wider than its parent.

6 0

3 years ago

Do Now. Darren is standing on the top floor of a hotel which is 300 ft tall. He thought it would be fun to

Lady bird [3.3K]

Answer:

Since he is so high up the ball would take longer to hit the ground because of how far down it has to go.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

I need help what is 3-2y+(-8y)+7.8

Snowcat [4.5K]