Answer:
2
Step-by-step explanation:
-8-(-12)=4
1.8-12=-4
2.-8+12=4
3.-8-12=-20
4.-(8+12)=-4
Answer:
Step-by-step explanation:
20 is greater than y.
Considering the situation described, the scientist's null and alternative hypothesis are described by:
Null hypothesis ; Alternative hypothesis .
<h3>What are the hypothesis tested?</h3>
At the null hypothesis, it is tested if there is no difference, that is, the difference of the means represented by is of 0, hence:
At the alternative hypothesis, it is tested if there is a difference, hence:
More can be learned about an hypothesis test at brainly.com/question/26454209
Answer:
Step-by-step explanation:
Use the following rules for exponents:
Simplify 24. Find two factors of 24, one of which should be a perfect cube:
Insert:
Now split the exponents. Split 10 into as many 3's as possible:
Insert as exponents:
Split 6 into as many 3's as possible:
Insert as exponents:
Now simplify. Any terms with an exponent of 3 will be moved out of the radical (rule #2):
Simplify:
:Done
First make the denominators of the fractions the same by multiplying.
×
=
Now we just need to add the fractions together
=
9/6 would be the answer, but it can be simplified further, then converted into decimal form.
÷
=
=1.5 yardsYour final answer is 1.5 yards of ribbon are needed.