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julsineya [31]
3 years ago
11

Suppose that, magically, your car size suddenly double —that is, its height, width, and depth doubled.

Mathematics
1 answer:
Serhud [2]3 years ago
5 0

Answer:

So... what's the question

Step-by-step explanation:

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Struggling with this please help thank you in advance
irina1246 [14]

Answer:

C

Step-by-step explanation:

I an augmented matrix, the coefficients for the variables come first and then the answer

4  -2  5

5  -1  8

6 0
3 years ago
A chemist is mixing 45% salt solution with a 30% salt solution to make 60 L of a new solution that will contain 40% salt. How mu
Alinara [238K]

Answer:

30 ml of 45% salt solution and 20 ml of 30% salt solution.

Step-by-step explanation:

Let x be the amount of 45% salt solution and y be the amount of 30% salt solution

the two equation will be:

x+y=60 -- A

0.45x+0.3y=0.4(60) -- B

Solve by substitution

Rewrite Equation A

x+y=60

x=60-y --- C

Substitute C into B

0.45(60-y)+0.3y=24

 27-0.45y+0.3y=24

                -0.15y=-3

                        y=20

<u>Substitute</u> the y=20 into equation C

x=60-20

x=30

Therefore, there was 30 ml of 45% salt solution and 20 ml of 30% salt solution.

3 0
3 years ago
Inferential statistical tests are used for all of the following except: a. describing a sample with means and standard deviation
Anika [276]

Answer:

a. Describing a sample with mean and standard deviation.

Step-by-step explanation:

Statistics can be categorized into descriptive and inferential statistics.

descriptive statistics uses data for descriptions through numerical analysis. It can be further divided in four parts.

  • Measures of Central Tendency ( Mean, Median, and Mode)
  • Measures of Frequency (Count, Percent, Frequency)
  • Measures of Position (Percentile Ranks, Quartile Ranks.)
  • Measures of Dispersion ( Range, Standard Deviation)

Inferential statistics however is based on assumptions and conclusions and generalizations drawn from samples or checks.

options b to d are all examples of inferential statistics while option a is an example of descriptive statistics.

8 0
3 years ago
What is the simplest form of the square root of 1,764
garik1379 [7]
The answer to this is 42.
6 0
4 years ago
Read 2 more answers
HELP PLEASE ASAP I NEED HEP
inessss [21]

Answer:

3

Step-by-step explanation:

6 0
3 years ago
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