Answer:
No because the a and b lengths are too big and the c length is too small
Step-by-step explanation:
a^2 + b^2 = c^2
5^2 + 7.5^2 = 2.5^2
25 + 56.25 = 6.25
The amount of times expected to get a 6 is 5.
30 / 6 = 5
69 cm is one standard deviation below the mean
<span>for a normally distributed (bell curve) population </span>
<span>___ about 68% lie within one standard deviation of the mean ___ 34% above and 34% below </span>
<span>in this case , the 34% below the mean is added to the 50% above the mean (the 1/2 of the population equal to or longer than 79 cm) </span>
<span>so 84% of the population is longer than 69 cm</span>
X^2-48 can be viewed as a difference of squares which would factor to:
(x+√48)(x-√48)
So b=√48
I’d say answer B would be the best bet