Answer:
No!
Step-by-step explanation:
The domain (x) cannot have 2 values. In this case, -4 is -3, and -4 is also 8.
This is not a function!
Answer:
2x-12=36
Step-by-step explanation:
Let's use x as an unknown variable. You know that this amount was twice what she spent. This statement means the amount is equal to 2x. However, the amount is also 12 dollars less. So, the equation would now become 2x-12. Lastly, you know that the amount she spent on jeans was 36 dollars so the equation would equal 36 dollars: 2x-12=36 Hope this helps!
At 9am, temperature = 28 - 8 = 20 degrees
At 5am, temperature = 20/2 = 10 degrees
At midnight, temperature = 10 + 12 = 22 degrees
Assessed value / 100 * tax rate = estimated taxes
(Division by 100 accounts for tax rates being expressed in terms of $x.xx per $100 of assessed value).
I dont know if that helps?...
Using the z-distribution, a sample of 609 nickels has to be weighed.
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:
The margin of error is:
In which:
- is the sample mean.
- is the standard deviation for the population.
For this problem, the parameters are:
We solve for n to find the sample size, then:
n = 608.9
Rounding up, a sample of 609 nickels has to be weighed.
More can be learned about the z-distribution at brainly.com/question/25890103
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