Answer:
A, C
Step-by-step explanation:
Rational: Yes, because it is a terminating decimal, and is thus rational.
Real: Yes, all rational numbers are real.
Irrational: No, because it is rational.
Integer: No, because its fractional part is nonzero.
Whole: No, because it is not an integer.
Natural: No, because it is not an integer.
The distributive property
Answer:
The terms are t, 8, and 3t
The like terms are t and 3t
Step-by-step explanation:
N/A
Answer:
The student who did the German test scored 2 standard deviations above the mean and the student who did the French test scored 1.6 standard deviations above the mean. Relative to their classmates, the student who did the German test scored better due to the higher z-score.
Step-by-step explanation:
Z-score
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
German test
Mean was 66 and the standard deviation was 8, scored an 82.
So



French test:
Mean was 27 and the standard deviation was 5, scored a 35.
So



The student who did the German test scored 2 standard deviations above the mean and the student who did the French test scored 1.6 standard deviations above the mean. Relative to their classmates, the student who did the German test scored better due to the higher z-score.
Answer:
I believe it is d (๑ↀᆺↀ๑)