Answer:
The weights within this range are:
8.9
9.5
9.8
10.4
Step-by-step explanation:
The graph represents the normal distribution with a mean of 9.5 and a standard deviation of 0.5. Therefore, the range of the values within 2 standard deviations is:
9.5 - 2(0.5) ≤ x ≤ 9.5 + 2(0.5)
8.5 ≤ x ≤ 10.5
Answer: 3.5
Step-by-step explanation:
No two numbers will work for this.
Answer:
The first one
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan30° =
=
= 
Multiply both sides by 8
8 × tan30° = b, that is
b = 8tan30°
Answer:
6
Step-by-step explanation:
divide
into
keep change flip
and we get 9/2 * 4/3 which gives us 3*2 = 6