John 75 Brett 80 Elizabeth 90 Cindy 100 Jake 75 Kenji 85 Rick 80 Joy 80 Raul 90 Suni 85 Find the range, mean, median and mode for the scores. Round to the nearest tenth when necessary. a. 25; 84; 82.5; 75 c. 25; 84; 82.5; 80 b. 100; 84; 82.5; 80 d. 25; 80; 82.5; 80

step-by-step explanation:

i think you should think about the question and not look online.

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

13.46

step-by-step explanation:

16.80 x .20 = 13.46