Answer:
5x+2=0
Step-by-step explanation:
When factoring you add or subtract your factors that are similar.
For example 9x-4x+ 5x
and this is how you get 5x+2=0
Any Questions?
The square root of 25 is 5, so each side is 5metres x
Answer:
The approximated height of the tree is of 112 meters.
Step-by-step explanation:
The height of a tree with a base diameter of d meters is approximated by the following formula:

In this question:
Base diameter of 3.2m, so
, and the height is in meters.

The approximated height of the tree is of 112 meters.
Answer:
The expression is (64 - x).
Step-by-step explanation:
The statement is:
"the difference of 8 squared and a number"
Let the number be denoted by <em>x</em>.
The value of 8 squared is:


Then the expression for the provided statement is:
(64 - x)
Thus, the expression is (64 - x).
Answer: p = 0.73
Step-by-step explanation:
Given that,
73% of the audience was under 20 years old :
so, probability (p) = 0.73
n = 146
Mean of the distribution of sample proportion = ?
According to central limit theorem,
np(1-p) ≥ 10
146 × 0.73(0.27) ≥ 10
28.77 ≥ 10
∴ Central limit theorem assumes that the sample distribution of the sample proportion is normally distributed.
Hence, the mean of the distribution of sample proportion:
μ = p = 0.73