To find the range of these scores, we must take the largest scores and subtract the smallest from it.
The largest score is 99, and the smallest score is 80.
99 - 80 = 19
Answer:
•cos(s+t) = cos(s)cos(t) - sin(s)sin(t) = (-⅖).(-⅗) - (√21 /5).(⅘) = +6/25 - 4√21 /25 = (6-4√21)/25
•cos(s-t) = cos(s)cos(t) + sin(s)sin(t) = (-⅖).(-⅗) + (√21 /5).(⅘) = +6/25 + 4√21 /25 = (6+4√21)/25
cos(t) = ±√(1 - sin²(t)) → -√(1 - sin²(t)) = -√(1 - (⅘)²) = -⅗
sin(s) = ±√(1 - cos²(s)) → +√(1- cos²(s)) = +√(1 - (-⅖)²) = √21 /5
Answer: point C
Step-by-step explanation: the square root of 68 is 8.246and it keeps going with other digits
Answer:
14.2857% decrease
≈ 14.3% decrease
Step-by-step explanation:
nearest tenths : 14.3%
nearest hundredths : 14.29%
nearest thousandths : 14.286%
I hope my answer is correct, I provided more options because I wasn't sure what nearest percent wanted.
Hope this helps!
