Answer:
its still 81 because negative times negative is positive
Step-by-step explanation:
Answer: 10
Step-by-step explanation:
C=√a²+b. square both sides
c²=a²+b². subtract a² from both sides
c²-a² = b². take the square root of both sides
b=±√c²-a²
but since length can never be negative we consider only the positive root
b=√c²- a²
Answer:
1.32%
Step-by-step explanation:
First, find the z-score:
z = (x − μ) / σ
z = (133 − 100) / 15
z = 2.2
Use a calculator or z-score table to find the probability.
P(x > 2.2) = 1 − 0.9868
P(x > 2.2) = 0.0132
1.32% of the population has an IQ more than 133.