Answer:
test stat=1.7986
p value =0.0391
Step-by-step explanation:
given
n=50
d = 7.3
s d = 28.7
formula to calculate test statistic
t=
⇒ t=
⇒t=1.7986
for 49 df and t=1.7986 ,p value can be obtained from software
p value=0.0391
First we need to find the slope of the original equation
2x - 3y = 3
-3y = -2x + 3
y = 2/3x - 1....the slope here is 2/3.
However, we need a perpendicular line...so we need to use the negative reciprocal slope. All that means is flip the slope and change the sign.
slope 2/3.....flip.....3/2....change the sign...-3/2.
so our perpendicular line will need a slope of -3/2.
y = mx + b
slope(m) = -3/2
(-8,2)...x = -8 and y = 2
now we sub and solve for b, the y int
2 = -3/2(-8) + b
2 = 12 + b
2 - 12 = b
-10 = b
so our perpendicular line is : y = -3/2x - 10
Answer:
60 + .20*120= 84
10 + 120/10*.10= 11.20
90 - 60 + 30/.20 = 180
Step-by-step explanation:
Factor
=(2x - 3)(2x + 5)
roots (zero)
2x - 3 = 0
2x = 3
x = 3/2
x = 1.5
2x + 5 = 0
2x = -5
x = -5/2
x = -2.5
