Test Scores Test Number Score 1 862 843 794 875 756 847 898 909 8810 92 Sara has been using an online review program to take practice tests for her upcoming graduation exam. Her scores are shown in the table. What is the range of the data set

Step-by-step explanation:

Given that Test Scores.

Test Number Score 1 862 843 794 875 756 847 898 909 8810 92

Sara has been using an online review program to take practice tests for her upcoming graduation exam.

First arrange the given data set from least to greatest

That is in Ascending order

The give data set becomes,

1, 92,756,794,843,847,862,875,898,909,8810

Range=8810-1

4.

step-by-step explanation:

it have the same area.brainliest

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