Answer:
a = 3
Step-by-step explanation:
Calculate the distance d using the distance formula and equate to 4
d =
with (x₁, y₁ ) = (2, - 1) and (x₂, y₂ ) = (2, a)
d = =
=
= a + 1 then
a + 1 = 4 ( subtract 1 from both sides )
a = 3
Finding the missing angles 35° and 145°
2 answers:
Answer:
<h2>145°</h2>Step-by-step explanation:
There are two ways to find the value of X
( sum of co-interior angles)
Move constant to R.H.S and change its sign
Calculate the difference
°
You can use another way too.
° ( being vertically opposite angles)
Vertically opposite angles are always equal.
Hope this helps...
Best regards!!
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Answer:
0.13591.
Step-by-step explanation:
We re asked to find the probability of randomly selecting a score between 1 and 2 standard deviations below the mean.
We know that z-score tells us that a data point is how many standard deviation above or below mean.
To solve our given problem, we need to find area between z-score of -2 and -1 that is .
We will use formula to solve our given problem.
Using normal distribution table, we will get:
Therefore, the probability of randomly selecting a score between 1 and 2 standard deviations below the mean would be 0.13591.