All categories

3 years ago

HELP ASAP

Mathematics

1 answer:

stira [4]3 years ago

8 0

Answer:

Use khan academy for the graph.

Step-by-step explanation:

You might be interested in

Plz give me the awnser

Ivanshal [37]

Answer:

Step-by-step explanation:

:[ I do not understand

5 0

2 years ago

People preferred berry blast by 780 compared to 220 who preferred Melon drink. Find the ratio

Airida [17]

Maybe ... divide the berry blast by the melon

6 0

2 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

2 years ago

Factorize the following 4x+16y+24z

FrozenT [24]

4x + 16y + 24z
= 4(x + 4y + 6z)

Answer:

4(x + 4y + 6z)

Hope you could understand.

If you have any query, feel free to ask

6 0

2 years ago

I need the answer to this❤️

KATRIN_1 [288]

Answer:

5/2x, 5/2 y

Step-by-step explanation:

An enlargement means the scale factor must be greater than one

The only choice with a scale factor greater than one is 5/2x, 5/2 y

5 0

3 years ago