3 years ago

Plzzzzzzzz help I dont get it xoxo

Mathematics

1 answer:

olasank [31]3 years ago

4 0

Answer:

the answer can be 1 I guess

You might be interested in

Solve for the indicated variable. Include all of your work in your answer. Submit your solution.

Sergio039 [100]

P = 2L + 2W; for L

P - 2W = 2L
P - 2W/2 = L
P/2 - W = L

5 0

3 years ago

Read 2 more answers

Two college roommates have each committed to donating to charity each week for the next year. The roommates’ weekly incomes are

schepotkina [342]

Answer:

C. 5 weeks.

Step-by-step explanation:

In this question we have a random variable that is equal to the sum of two normal-distributed random variables.

If we have two random variables X and Y, both normally distributed, the sum will have this properties:

$S=X+Y\\\\\ \mu_S=\mu_X+\mu_Y=30+60=90\\\\\sigma_S=\sqrt{\sigma_X^2+\sigma_Y^2}=\sqrt{10^2+20^2}=\sqrt{100+400}=\sqrt{500}=22.36$

To calculate the expected weeks that the donation exceeds $120, first we can calculate the probability of S>120:

$z=\frac{S-\mu_S}{\sigma_S} =\frac{120-90}{22.36}=\frac{30}{22.36}=1.34\\\\P(S>120)=P(z>1.34)=0.09012$

The expected weeks can be calculated as the product of the number of weeks in the year (52) and this probability:

$E=\#weeks*P(S>120)=52*0.09012=4.68$

The nearest answer is C. 5 weeks.

6 0

3 years ago

WILL GIVE BRAINLIEST PLEASE I NEED HELP

densk [106]

The numbers on the left are the x values because the arrows are pointing away from them. The numbers in the right are the y values. Match the y value with the x value that the arrows are pointing from.

-2,-5 , -2,7 , 1,0 , 5,4 , 7, 0

The answer is C.

6 0

3 years ago

karen deposits $300 into an account that pays simple interest at a rate of 5% per year. how much interest will she be paid in th

shtirl [24]

60 dollars. you will use the formula I=PRT

6 0

3 years ago

Read 2 more answers

Whoever answers correctly gets brainlist

-Dominant- [34]

Answer:

22/25

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers