Answer:
58
Step-by-step explanation:
Because I just got in wrong.
Answer:
110
Step-by-step explanation:
We have been given that the mean IQ score is 100 and the standard deviation is 15.
We will use normal distribution table to solve our given problem.
The top 25% of the population will represent scores greater than 75%.
The z-score corresponding to data greater than 75% is 0.6745.
Upon substituting our given values in z-score formula, we will get:
Therefore, the top 25% of the population (ranked by IQ score) have IQ’s above 110.
If the sides were 2 and 3 then using Pythagoras the diagonal would be sr(2^2 + 3^2) = sr(13)
The actual diagonal is 8 inches so the sides need to be scaled by 8/sr(13)
The screen area will be 2 x 8/sr(13) x 3 x 8/sr(13) = 29.539....
Rounded to nearest sq.inch this is 30 sq.inch
Answer:
C
Step-by-step explanation:
The 2 triangles are similar (AA postulate ), thus the ratios of corresponding sides are equal, that is
= 
( cross- multiply )
14x = 98 ( divide both sides by 14 )
x = 7 → C
Answer:
y=0.5(x+6)(x+5)
Step-by-step explanation:
Since the parabola goes upwards as it expands from the vertex, the "a" value is definitely positive so the answer must be either the top-left or bottom-right. Next, use the roots to find the final answer. The roots are on the left side of the y-axis which indicates that they are negative. Now you know that the answer is the bottom-right answer because if both roots are negative, then the expressions must include addition to create 0 which is the y-value at the bases.
