9514 1404 393
Answer:
Sydney is 45
Step-by-step explanation:
Let s represent Sydney's age. Then Devaughn's age is (s-14). The total of their ages is ...
s +(s -14) = 76
2s = 90 . . . . . . simplify, add 14
s = 45 . . . . . . . divide by 2
Sydney's age is 45.
___
<em>Check</em>
Devaughn's age is 45 -14 = 31. Their age total is 45 +31 = 76, as required.
Step-by-step explanation:
Reflection in the x axis (x,y)—>(x,-y)
(-4,-3)—>(-4,3)
We have different values asociated here, but easly we can also start
calculating the confidence level from a lower value.
We can define a confidence level of x%, then the asociated level of significance will be
Here for
Defining the p-value as 0.052 we have a range between the test reject,
that is,
, for the p-value
But when we do the calculation we note that if ; the test reject
That's mean that the asociated confidence interval won't contain 0.
Evaluating for the value of 90 and 94, 90 causes the hypothesis to be rejected immediately, but 94 does not.
The lowest number for this approximation in the response ranges should be the number immediately above 90%, that is, the answer is 94%.
Answer:
x = 2, y = 1
Step-by-step explanation:
<u>Given:</u>
<u>Solve:</u>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<u>Check Answer:</u>
Since
<u><em>True</em></u>
<u><em>True</em></u>
Hence,
<u><em>~Lenvy~</em></u>