Answer:
Step-by-step explanation:
1). Replace one equation with a multiple of itself.
2x + 7y = 3 ⇔ 4(2x) + 4(7y) = 4(3)
2). Yes, systems are equivalent.
Answer:
1 gallon = 128 ounces / 8 pints / 4 quarts
Answer:
H0 : //μA = μB = μC
Step-by-step explanation:
Given the data:
Treatment | Observation
A | 20 | 30 | 25 | 33
B | 22 | 26 | 20 | 28
C | 40 | 30 | 28 | 22
To test whether there is a difference between the group means of a sample ; the ANOVA test is employed ;
The appropriate hypothesis test:
The alternative hypothesis will habour the notion that there is a difference in sample means while the alternative will be opposite, that is, no difference exists in the sample means for the three treatments :
Null hypothesis ; H0 : μA = μB = μC ;
The alternative hypothesis, takes the opposite of the null ;
H1 : μA ≠ μB ≠ μC (this means that the mean values of the treatments are not the same
The null hypothesis will
Answer:
Step-by-step explanation:
Let x represent the amount invested at 11%. Then (3000-x) is the amount invested at 8%. The interest difference is ...
0.11x - 0.08(3000 -x) = 216
0.19x -240 = 216 . . . . . . . . simplify
0.19x = 456 . . . . . . . . . . . . add 240
456/0.19 = x = 2400 . . . . . the amount invested at 11%
3000-2400 = 600 . . . . . . . the amount invested at 8%
I’m pretty sure the correct answer is B
