All categories

3 years ago

HEEEEEEEEELP PLZZZZZZZZZZ

Mathematics

1 answer:

Ede4ka [16]3 years ago

8 0

Answer:

Step-by-step explanation:

(1). ( - 3, - 1 )

(2). ( - 1, 3 )

(3). ( 2, 0 )

(4). ( 1, 0 )

You might be interested in

Price - $375<br> Discount - 20%<br> Total =

Yanka [14]

Answer: 20

Step-by-step explanation: since i helped can i have brainlist plesa :D

8 0

2 years ago

A 90% confidence interval for the mean height of students

Westkost [7]

Answer:

$ME= \frac{69.397-60.128}{2}= 4.6345 \approx 4.635$

And the best answer on this case would be:

b) m = 4.635

Step-by-step explanation:

Let X the random variable of interest and we know that the confidence interval for the population mean $\mu$ is given by this formula:

$\bar X \pm t_{\alpha/2} \frac{s}{\sqrt{n}}$

The confidence level on this case is 0.9 and the significance $\alpha=1-0.9=0.1$

The confidence interval calculated on this case is $60.128 \leq \mu \leq 69.397$

The margin of error for this confidence interval is given by:

$ME =t_{\alpha/2} \frac{s}{\sqrt{n}}$

Since the confidence interval is symmetrical we can estimate the margin of error with the following formula:

$ME = \frac{Upper -Lower}{2}$

Where Upper and Lower represent the bounds for the confidence interval calculated and replacing we got:

$ME= \frac{69.397-60.128}{2}= 4.6345 \approx 4.635$

And the best answer on this case would be:

b) m = 4.635

4 0

3 years ago

Let u = <-8, -9>. Find 7u. (2 points)

ANEK [815]

Multiplying a vector by a scalar means to multiply each coordinate of the vector by said scalar.

So, we must multiply both entries by 7:

$u=(-8, -9)\implies 7u=(-8\cdot 7, -9\cdot 7) = (-56, -63)$

4 0

3 years ago

How do I get the out number to 30?

Ne4ueva [31]

Notice the pattern of the out bags. For every person after the first, three more bags are pulled. By continuing this pattern you will eventually find the answer

1=2
2=5
3=8
4=11
5=14
6=17
7=20
8=23
9=26
10=29
11=32

Therefore, you need 11 people to get the job done in one day

5 0

2 years ago

What is the slope intercept of 2y=14-4x

pentagon [3]

7, 14 would be it but you have to divide the whole equation by 2 to get the y alone

4 0

3 years ago

Read 2 more answers