6q-18=qr+t
6q-qr=t+18
q(6-r)=t+18
q=(t+18)/(6-r)
Answer: q would be: q=(t+18)/(6-r)
Answer:
m = 0 or 5
Step-by-step explanation:
m² − 5m = 0
Factor out m:
m (m − 5) = 0
Set each term to 0:
m = 0
m − 5 = 0
Solve for m:
m = 0
m = 5
Answer:
4
Step-by-step explanation:
Answer:
( x + 3)( x - 3)( x + y )( x - y )
Step-by-step explanation:
You can group the terms in pairs and factor each pair:
-x^2y^2 + x^4 + 9y^2 - 9x^2 = x^2(-y^2+x^2) -9(-y^2+x^2)
= (x^2 -9)(x^2 -y^2)
Each of these factors is the difference of squares, so can be factored as such:
= (x +3)(x -3)(x +y)(x -y)
Answer: 39.308 pounds
Step-by-step explanation:
We assume that the given population is normally distributed.
Given : Significance level :
Sample size : n= 12, which is small sample (n<30), so we use t-test.
Critical value (by using the t-value table)=
Sample mean :
Standard deviation :
The lower bound of confidence interval is given by :-
i.e.
Hence, the lower bound for the 98% confidence interval for the mean yearly sugar consumption= 39.308 pounds