Answer:
198 and 612
Step-by-step explanation:
We are given that the scores are normally distributed.
The mean of the data is 405.
The standard deviation of this data is 69.
Empirical rule states that for a normally distributed data that
- about 68% data lies between that is one standard deviation from mean.
- about 95% data lies between that is one standard deviation from mean.
- about 99.7% data lies between that is one standard deviation from mean.
Thus, 99.7% of data will lie between that is it will lie in the range (198,612)
5x2y-5x2+3yx2-3y2+x2-y2+8xy2-3y2
First Collect like terms:
5x x 2y, +3x x 2,and +8xy x 2
16x x 2y -4x x 2 - 4y x 2—> Multiply the numbers:
Multiply the numbers 16 x 2
16 x 2 = 32
Now multiply the numbers 4 x 2
4 x 2 = 8
Now Multiply the numbers 4 x 2 again
4 x 2 = 8
= 32xy - 8x- 8y
Factor 8 from the expression
Final Answer:
8(4xy-x-y)
I’m not really sure about my answer but i hope it helps!
Sorry if its wrong..
Stay Safe guys!
Answer:
15=8+x
Step-by-step explanation:
Answer:
13.43
Step-by-step explanation:
Law of Sines
x/sin50 = 12/sin42
solve for x and don't forget to put calculator into degree mode
Answer:
He placed the decimal in the wrong spot
Step-by-step explanation:
15.12 / 4.2 = 3.6