All categories

3 years ago

Can someone help me please.

Mathematics

1 answer:

34kurt3 years ago

7 0

Answer:

c ?

Step-by-step explanation:

You might be interested in

Evaluate x+y when x=−45 and y=13. Write your answer as a fraction or mixed number in simplest form.

cricket20 [7]

the answer is -32

you add -45 and 13

6 0

3 years ago

Calculate the value of the sample variance. Round your answer to one decimal place. 9_5,9_5,2,9_5

Ugo [173]

Answer:

$s^2 = 0.01$

Step-by-step explanation:

Given

Values: 9/5, 9/5, 2, 9/5

Required

Calculate the sample variance

Sample variance is calculated using:

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$

First, we calculate the mean

$\overline x = \frac{\sum x}{n}$

$\overline x = \frac{9/5 + 9/5 + 2 + 9/5}{4}$

$\overline x = \frac{7.4}{4}$

$\overline x = 1.85$

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$ becomes

$s^2 = \frac{(9/5 - 1.85)^2+(9/5 - 1.85)^2+(2 - 1.85)^2+(9/5 - 1.85)^2}{4 - 1}$

$s^2 = \frac{(-0.05)^2+(-0.05)^2+(0.15)^2+(-0.05)^2}{4 - 1}$

$s^2 = \frac{0.0025+0.0025+0.0225+0.0025}{3}$

$s^2 = \frac{0.03}{3}$

$s^2 = 0.01$

Hence, the variance is 0.01

5 0

2 years ago

Patrice goes to fishers candy shop with the price of gummy candies modeled by the equation y=5/2x where x is the amount of gummy

icang [17]

Answer:

You need to put the question, but I'll try to help as much as I can without the question. y=5/2x, if you put the amount of gummy candy in lbs in the x's place, and you multiply the amount by 5/2, you will get the price.

Step-by-step explanation:

7 0

3 years ago

Combine like terms to simplify. 2. 3v + w +8 - 2n

AURORKA [14]

3v + w +8 - 2n

Simplifying 3v + w + 8 + -2n

Reorder the terms: 8 + -2n + 3v + w

Hopes it helped!

4 0

2 years ago

Please help this is due today ;-;

GrogVix [38]

The answer is the first one hope this helps!!

7 0

3 years ago

Read 2 more answers