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3 years ago

FUTURE SMART QUESTION +25 POINTS PKEASE ANSWER

Mathematics

1 answer:

Rufina [12.5K]3 years ago

6 0

Answer:

18750

Step-by-step explanation:

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I NEED HELP ASAP!! I CAN GIVE BRAINLIST!!!

meriva

Answer:

1. 3.25

2. 3937.50

3. 2600

4. 6000

5. 67.50

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What is an equation in point-slope form of the line shown below? (-2,1) (4,4)

Natali [406]

Answer:

y = 1/2x +2

Step-by-step explanation:

y-y1= m (x-x1)

first find slope

m= 4-1 / 4 - (-2)

m= 3 / 4+2

m= 3/ 6

m = 1/2

you can pick any of the two points to solve for point slope form

y-4 = 1/2 (x-4)

y-4= 1/2x -2

add 4 on both sides

y = 1/2x +2

y-1= 1/2 (x- (-2))

y-1= 1/2 (x+2)

y-1= 1/2x +1

add 1 on both sides

y= 1/2x +2

you should get the same answer with any of the two points you chose

you might want to use a calculator to solve this

if you want to use both points to make sure the answer is correct, you can

if you don't get the same answer with both points then u did something wrong during the equation.

4 0

3 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

For formality<br>its easy lol

julsineya [31]

Answer:

Therefore, the length of hypotenuse is: 13 units

Step-by-step explanation: