Answer:
<h2>44 ft²</h2><h2 />Step-by-step explanation:
A1 = 2(5 x 2) = 20
A2 = 8 x 3 = 24
total = 20 + 24
= 44 ft²
10 PTS!!!! PLEASE HELP ALGEBRA 1 MATH
1 answer:
Parallel lines will always have the same SLOPE. In the case of this equation, the slope is 
since 
is the same as 
and the coefficient of is the slope. Because there is no 
, the graph of the equation will NEVER intercept the y-axis. Therefore, whatever answer option does not have is correct.
Answer: C.
Here's the graph to help you visualize:
Answer: C.
Here's the graph to help you visualize:
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Answer:
And if we solve for we got
So then the mean is for this case.
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:
For this part we want to find a value a, such that we satisfy this condition:
(a)
(b)
Both conditions are equivalent on this case. We can use the z score again in order to find the value a.
As we can see on the figure attached the z value that satisfy the condition with 0.25 of the area on the left and 0.85 of the area on the right it's z=-0.674. On this case P(Z<-0.674)=0.25 and P(z>-0.674)=0.85
If we use condition (b) from previous we have this:
But we know which value of z satisfy the previous equation so then we can do this:
And if we solve for we got
So then the mean is for this case.
