Answer:Graph the line using the slope and y-intercept, or two points.
Slope:
5
y-intercept:
3
x
y
0
3
1
8
Step-by-step explanation:
It would be (all under a big square root) (-7-5)squared + (3+2) squared. This equals to about root 169
Answer:
Step-by-step explanation:
The probability that student scored more than 850 we shall proceed as follows:
z=(x-μ)/σ
where:
x=850
μ=750
σ=50
thus
z=(850-750)/50
z=2
thus
P(x>850)=1-P(x<850)=1-P(z<2)=1-0.9772=0.0228
Answer: P(x>850)=0.0228
