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lozanna [386]
3 years ago
12

HELP ILL MARK BRAINLYEST

Mathematics
1 answer:
Svetach [21]3 years ago
8 0

Answer:

4(x+2y) = 8y+4x

Step-by-step explanation:

because if you distribute the 4 to the x and y you will get 4x and 8y because you are multiplying the outside number with both first numbers in the parentheses for example

10(4x+y) = 40x+10y

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5 Carla packs 4 pairs of pants, 2 pairs of shorts, and 3 skirts for her vacation.
ratelena [41]

Answer:

D 3:4

Step-by-step explanation:

she packs 3 skirts and 4 pants so it's 3:4. The wording of the question is important (skirts to pants) so you have to put the number of skirts first before pants which is why it IS NOT A.

8 0
3 years ago
Read 2 more answers
PLZ HELP IM BEING TIMED!!!
Deffense [45]

Answer:

7√(x) = 14

Step-by-step explanation:

8 0
3 years ago
A local company wants to evaluate their quality of service by surveying their customers.
stich3 [128]

Answer: b. 0.98

Step-by-step explanation:

The formula to find the maximum error of the estimated mean :

E=z^*\dfrac{\sigma}{\sqrt{n}}            (1)

, where \sigma = standard deviation

n= Sample size

z* = Critical z-value.

As per given , we have

\sigma=5

n=100

Critical value for 95% confidence interval = z*=1.96

Put these values in the formula (1), we get

E=(1.96)\dfrac{5}{\sqrt{100}}

E=(1.96)\dfrac{5}{10}=0.98

Hence, the maximum error of the estimated mean quality for a 95% level of confidence is 0.98.

Therefore , the correct answer is b. 0.98 .

6 0
3 years ago
Read 2 more answers
Mrs. Lane took a survey of the types of pants her students were wearing. She collected the data at the right. What percent of he
Nadya [2.5K]

Answer:

It is always important to go through the given problem first to get a concept of the requiremement. Then all the information's available from the question has to be noted down in such a manner that there would be no need to look at the question while solving.

Total number of students wearing jeans = 10

Total number of students wearing shorts = 9

Total number of students wearing capris = 2

Then the total number of students surveyed by Mrs Lane = (10 + 9 + 2)

                                                                                           = 21

Now percentage of students wearing shorts = (9/21) * 100

                                                                      = (3/7) * 100

                                                                      = 300/7

                                                                      = 42.85 percent

So a total percentage of 42.85% of the students were wearing shorts.

Step-by-step explanation:

6 0
3 years ago
24=3y<br><img src="https://tex.z-dn.net/?f=24%20%3D%203y%20" id="TexFormula1" title="24 = 3y " alt="24 = 3y " align="absmiddle"
Norma-Jean [14]

\bf 24=3y\implies \cfrac{24}{3}=y\implies 8=y

3 0
3 years ago
Read 2 more answers
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