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dimaraw [331]
3 years ago
14

The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly selected math students.

Mathematics
1 answer:
horsena [70]3 years ago
7 0

Answer: C. a prediction based on the data is reliable, because the means of the samples are close together.

Step-by-step explanation:

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What is the distance between -12 and 15?
motikmotik

Answer:

27

Step-by-step explanation:

to get the distance, add -12 and 15 which gets you 27

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2 years ago
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Elvira’s cafeteria has cartons of milk that are typical of school lunch. The milk supplier charges $0.35 per carton of milk, in
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Write the equation out: (total cost: 0.35C[per carton] + 75[delivery charge]) ≤ 500. Subtract 75 on both sides and it would be: 0.35C ≤ 425. Divide 0.35 on both sides and you'll get C ≤ 1214. Therefore, the maximum # of cartons that Elvira can buy is 1214 cartons of milk.
3 0
3 years ago
Consider the accompanying matrix as the augmented matrix of a linear system. State in words the next two elementary row operatio
Lubov Fominskaja [6]

Answer:

The answer is below

Step-by-step explanation:

The next step to solve the system, would be to divide the second row by 3 and we would be left with:  3 * R2

[1 -5 3 0 -2

0 1 -7/3 0 4/3

0 0 1 2 -2]

Then what we will do is multiply row 3 by 7/3 and then subtract it from row 2, that is, R2 - 7/3 * R3, and it would look like this:

[1 -5 3 0 -2

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And these would be the next two steps in the process of solving the system.

4 0
3 years ago
Please please please help!!!! :))))))
tresset_1 [31]

Answer:

$ 800

Step-by-step explanation:

Parking slot is in the shape of parallelogram.

base = 3 m

Height = 6 2/3 m

Area = base * height

        = 3 * 6\frac{2}{3}\\\\= 3*\frac{20}{3}\\\\= 20 sq.m

Cost of paving the parking spot = 20 * 40

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8 0
3 years ago
Of the fifth graders in oak elementary, 6/8 are in band. What fraction of the fifth graders are not in band?
Stella [2.4K]
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4 0
3 years ago
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