Answer:
(1,3)
Step-by-step explanation:
Initial value is the value of y where x = 0 (y-intercept).
You are already given that line contains point (0, 5). The y-coordinate is 5 therefore answer is C.
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Convert all fractions to have the same denominator.
To convert, we must find the least common multiple of the two denominators of the fractions:
Multiples of 4: {4,8,12,16,20}
Multiples of 5: {5,10,15,20}
The least common multiple of 4 and 5 is 20.
Multiply the fractions by a number that will result in the denominator being 20:


The equation should now look like this:

Subtract both sides by 8/20 to get w by itself:


The value of w is 7/20.
From all those aforementioned, the true statement is: Thanh’s grade is 2.5 standard deviations below the mean of the test grades.
Hey the answer for the first one is B and the second one is C