Answer:
0
Step-by-step explanation:
Answer:
2x^2+10-3x
Step-by-step explanation:
start by multiplying numberes into the parentheses.
2x^2+10-3x-3+3
now combine like terms
2x^2+10-3x
It is a right triangle because a 3, 4, 5 triangle is always a right triangle. it is because it is a Pythagorean Triple. all the sides are whole numbers
Answer:
38x
Step-by-step explanation:
{(10x+1)3x}+5(5x)
10x+3x+25x=38x
To do that you'll need the mean and standard deviation of all the scores. Can you provide this info?
For example: Supposing that the mean of these scores were 52 and the standard deviation 3. You'd need to find the "z-score" of 57 in this case.
57 - 52
It is z = ------------ , or z = 5/3, or z = 1.67.
3
Find the area to the left of z = 1.67. Multiply that area by 100% to find the percentile rank of the score 57.
