Answer:
a) -5/4
Step-by-step explanation:
Slope is fundamentally rise/run; The points on the line are relative to each other by decreasing/increasing the y-value of +/-5 and decreasing/increasing the x-value by +/-4
The function is decreasing so the slope has to be negative.
The only possible answer choice is -5/4 or a.
Answer:
48
Step-by-step explanation:
Given that:

The interval for score = 60 - 42 = 18
If we divide it by the 3 standard deviations; the interval result into
= 18/3
= 6
So, the standard deviation is 6, and the mean = 42 + 6
= 48
From place value relationships the 4s in 344 is 86
__4s___ __344__
4 4
<em /><em><u /></em><em><u /></em><u></u>S = 86
ANS : S = 86