Xy = 940
<span>and </span>
<span>Cost = 5(2x) + 5y + 10y (I chose y to be the side with brick). The cost equation simplifies to: </span>
<span>C = 10x + 15y </span>
<span>Replace y in the cost equation with 940/x: </span>
<span>C = 10x + 15(940/x) </span>
<span>C = 10x + 14100/x <---this is the equation you need to minimize. </span>
<span>C' = 10 - 14100/x^2 </span>
<span>10 - 14100/x^2 = 0 </span>
<span>14100/x^2 = 10 </span>
<span>x^2 = 14100/10 = 1410 </span>
<span>x = sqrt(1410) = 37.55 </span>
<span>y = 25.03 <---this is the length of the brick fence.</span>
Answer:
Null hypothesis:
Alternative hypothesis:
Step-by-step explanation:
A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".
The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".
The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".
On this case the claim that we are trying to proof is "A movie streaming company only holds on to a movie in its offering if the movie has had a 4.5 rating or above". So that needs to be on the alternative hypothesis. And the complement should be the null hypothesis.
Null hypothesis:
Alternative hypothesis:
We have another into to complete the test for example:
represent the sample size selected
The value that we want to test
represent the significance level
Confidence =95% or 0.95
Answer:
6. 2.6
7. 1.5
8. 16.2
9. 1.44
10. 19.2
11. 0.08
12. 3.3
13. 288.1
14. 109.2
15 h = 7.2
16. x = 0.3
17. m = 10.36
Step-by-step explanation:
umm here’s the answers
Angle A is supplementary with angle C, thus, by the Inscribed Angle Theorem:
Answer:
P=2.25x-----------1
M=2.25y----------2
Step-by-step explanation:
Step one:
given data
we are told that the cost of pears= $2.25 each
and cost of mango= $2.25 each
Step two:
the chef bought x pears and y mangoes
let the total cost of pears be P
and for mango be M
P=2.25x-----------1
M=2.25y----------2