Answer:
Null hypothesis: 
Alternative hypothesis: 
The statistic is given by:
And replacing we got:
And the best option would be:
2.19
Step-by-step explanation:
We have the following info given:
n1 = 150 n2 = 275
s1 = 15.98 s2 = 35.67
We want to test the following hypothesis:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
And replacing we got:
And the best option would be:
2.19
Answer:
100
Step-by-step explanation:
43+57=100
I added 3+7=10
Then 40+50=90 and added them
90+10=100
OOH, that's tricky--- give a shot first though!
X intercept is when y = 0
In other terms (x,0)
You can see on the graph where the line meets the x intercept at (3,0)
Solution: a. (3,0)
Answer:
Dimensions are
Length= 91 units
Width=15 units
Step-by-step explanation:
The formula for perimeter is 2(l+w) where l is length and w is width.
Given perimeter is 212 units
Let the width , w=x units
Length is 16 more 5 times the width= 5x+16 units
So length will be = 5x+16
and width will be= x
Perimeter = 2(l+w)
212=2( 5x+16+x)
212=10x+32+2x
212=12x+32
212-32=12x
180=12x
180/12=12x/12
15=x----------------------width
For length= 5x+16
l=(5*15) +16
l=75+16=91 units-------------length
