Answer:
The system of the equations has no solution; the two lines are parallel.
Step-by-step explanation:
The equations have the same slope. In standard form, this can be seen as the same coefficients for x and y. We will multiply the second equation by -12 to reveal this.
This means the equations are parallel and will never cross. There is no solution.
Answer:
six in parenthesis n minus two
Step-by-step explanation:
Answer:
she will finish in 5 hours
Step-by-step explanation:
11 + 19 = 30
30 ÷ 6 = 5
Hope this helps :)
Answer:
A
The answer would be A because what is 156- 19=137 so we now take out number 2/B
137-19=118 So that means we can eliminate number 3/c that says 119 so that's out now.
And for last number the 3rd number to subtract is what is 118-19=99 so we just eliminated number 4 that says 98.
And the only number that followed our answers and ad the same answer for us was A so lets go with A.
Hope this helps have a great day:)
<h3>
Answer: 8.323 (approximate)</h3>
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Explanation:
s = 32 = sample standard deviation
n = 40 = sample size
Despite not knowing the population standard deviation (sigma), we can still use the Z distribution because n > 30. When n is this large, the student T distribution is approximately the same (more or less) compared to the standard Z distribution. The Z distribution is nicer to work with.
At 90% confidence, the z critical value is roughly z = 1.645. This can be found using either a Z table or a calculator.
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We have these values:
- z = 1.645 (approximate)
- s = 32
- n = 40
Plug these values into the margin of error formula.
The margin of error is roughly 8.323
I rounded to 3 decimal places because z = 1.645 is rounded to 3 decimal places. If your teacher wants some other level of precision, then be sure to follow those instructions.