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2 years ago

Somebody please help me. I will give brainliest.

Mathematics

1 answer:

evablogger [386]2 years ago

8 0

Answer:

You divided by two.

Step-by-step explanation:

8/2=4

6/2=3

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A lady walks into a cafe. She order four items. a coffe for 3.28, a bagel for 1.27, a juice for 0.56 and a muffin for 2.33. How

malfutka [58]

She spent $7.44 because 3.28 + 1.27 + 0.56 + 2.33 = 7.44

7 0

1 year ago

Solve.<br> sec 315 degrees

densk [106]

Answer:

1.41

Step-by-step explanation:

5 0

2 years ago

The sum of two integers is 36 and their difference is 16. Find the integers

stich3 [128]

Answer:

27,9

Step-by-step explanation:

x + y =36

x - y = 16

27 + 9 = 36

27 - 9 = 16

4 0

3 years ago

Given that<br> 4x : 3= 11 : 5 Calculate the value of x<br> .

AleksAgata [21]

Step-by-step explanation:

$1 \frac{13}{20}$

$4x \3 = 11 \5 \\ \\ 20x = 33 \\ x = 33 \div 20 \\ = 1 \frac{13}{20}$

3 0

2 years ago

Suppose in the University of Manitoba, 40% of the students live in apartments. If 600 students are randomly selected, then the a

just olya [345]

Answer:

$P(200\leq X\leq 400)=P(\frac{200-240}{12}\leq \frac{X-\mu}{\sigma}\leq \frac{400-240}{12})=P(-3.33\leq Z \leq 13.33)$

$=P(Z$

So then the correct answer would be:

B) .9996

Step-by-step explanation:

The exact way to solve this problem is using the binomial distribution, assuming that our random variable of interest is "number of students living in apartments" represented by X and $X \sim Bin(n=600, p =0.4)$

And we want this probability:

$P(200 \leq X \leq 400) [tex]In order to find this probability we can use the foloowing excel code:"=BINOM.DIST(400,600,0.4,TRUE)-BINOM.DIST(199,600,0.4,TRUE)"And we got:[tex] P(200 \leq X \leq 400) =0.999675[tex]But for this case the problem says that we need to approximate, so then we can use the normal approximation to the normal distribution. We need to check the conditions in order to use the normal approximation.
[tex]np=600*0.4=240\geq 10$