Answer:
4) D
200+180+360= 740
20) C
21) B
55*2+75*2
Step-by-step explanation:
The answer would be 52. 8/2 is 4. so 4x13 is 52.
Answer:
The mistake is in step 1 when you do -2(x+4) you do the distributive property first -2 times x is -2x that's correct but -2 times 4 is not 8 it is -8
when you multiply by negatives the answer will always be a negative unless your multiply 2 negative number together then itll be positive ex. 4 × -4 = -16 (negative) but -4 × -4 = 16 (positive)
Answer:
z test statistic
Step-by-step explanation:
Given : In a hypothesis test, the claim is μ ≤ 25 while the sample of 34 has a mean of 21 and a population standard deviation of 5.9 from a normally distributed data set.
To Find : In this hypothesis test, would a z test statistic be used or a t test statistic and why?
Solution:
Claim : μ ≤ 25
Sample size = n = 34
Population Standard Deviation = 5.9
Since n > 30 and we are given the standard deviation of population .
So, we will use z test statistics .
Hence In this hypothesis test, z test statistic would be used.
Answer:
two equations y=3x
and y=12x
are proportional relation ship equations
Step-by-step explanation: