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kifflom [539]
3 years ago
13

what about this one? is it correct? I am all done but would like to check if they are alright since I am so so rounding

Mathematics
1 answer:
Nutka1998 [239]3 years ago
7 0
They're all correct! Nice job :)
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The owner of a food cart sells an average or 120 frozen treats per day during the summer ​
krek1111 [17]

Answer:

uhhh ok

Step-by-step explanation:

7 0
2 years ago
Weight of a rock: In a geology course, students are learning to use a balance scale to accurately weigh rocks. One student plans
dusya [7]

Answer:

The first student, with 20 measurements, will have the more precise interval due to the larger sample size.

Step-by-step explanation:

Margin of error of a confidence interval:

The margin of error of a confidence interval has the following format:

M = z\frac{s}{\sqrt{n}}

In which z is related to the confidence level, s to the standard deviation and n to the sample size.

The margin of error is inversely proportional to the square root of the sample size, which means that a larger sample will lead to a lower margin of error, that is, to a more precise interval.

In this question:

One student will use 5 measurements, other 20. The first student, with 20 measurements, will have the more precise interval due to the larger sample size.

5 0
2 years ago
Multiply.
Alik [6]

Answer:

Simplify the expression.

Exact Form:

77 /10

Decimal Form:

7.7

Mixed Number Form:

<h2><u>7  7/ 10 </u></h2>

Hope This Helps

8 0
3 years ago
Find the slope of the line that contains the points (7, 3) and (7, 9). Round to 2 decimal places.
Lunna [17]

answer = not define

Step-by-step explanation:

slope = (y2- y1) / (x2- x1)

= 9-3 / 7-7

= 6/0

= not define

I think points are wrong

3 0
3 years ago
The second term of an arithmetic sequence is 13 and the fourth term is 7.
Tomtit [17]

Answer:

<h3>                 \bold{a_{13}=52}</h3>

Step-by-step explanation:

d=a_4-a_3=a_3-a_2\\\\a_3-a_2=a_4-a_3\\\\2a_3=a_2+a_4\\\\2a_3=13+7\\\\2a_3=20\\\\a_3=10\\\\d=10-13=-3\\\\\\a_2=a_1+d\quad\implies\quad a_1=a_2-d=13-(-3)=16\\\\a_n=a_1+d(n-1)\\\\a_{13}=16+(-3)(13-1)=16+36=52

5 0
2 years ago
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