Answer:
Option d - Equality
Step-by-step explanation:
To find : What sign of a null hypothesis must always include?
Solution :
The Null hypothesis is defined as a statement about the population that either is believed to be true or is used to put forth an argument unless it can be shown to be incorrect beyond a reasonable doubt.
The Null hypothesis represent by 
always has a symbol with an equal in it.
Therefore, Option d is correct.
Equality sign of a null hypothesis must always include.
Answer:
0.17155425219941%
Step-by-step explanation:
100%/x%=682/1.17
(100/x)*x=(682/1.17)*x - we multiply both sides of the equation by x
100=582.90598290598*x - we divide both sides of the equation by (582.90598290598) to get x
100/582.90598290598=x
0.17155425219941=x
x=0.17155425219941
Answer:
x = - 6 ± 
Step-by-step explanation:
Given
x² + 12x = 1
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(6)x + 36 = 1 + 36
(x + 6)² = 37 ( take the square root of both sides )
x + 6 = ± ( subtract 6 from both sides )
x = - 6 ± ← exact solutions
Answer:
I think it is 10 km/hr
Step-by-step explanation:
5 hrs = 40 more with 2 km/hr current
2 hrs= less 40 no current
40-2x5=30
30 without current for three hours
30/3=10 km/hr no current
CHECK
10x2=20
10x5=50+2x5=60
Answer:
Y intercept= 1
Step-by-step explanation:
First you need to put this in slope intercept form (y=mx+b) so heres the steps:
y+2x-1=0 (given)
y-1=-2x (subtract 2x from both sides)
y=-2x+1 (add 1 to both sides)
y=-2x+1 is the y=mx+b form
The y intercept is b so your answer is 1
