The three steps below were used to find the value of the expression [(-10 + 2) - 1] + (2 + 3).

Step 1: ?

Step 2: -9 + 2 + 3

Step 3: -7 + 3

Which expression is missing from Step 1?

a. [-10 + 1] + (2 + 3)

b. [8 + 1] + (2 + 3)

c. [-8 - 1] + (2 + 3)

d. [-10 + -1 + 2] + (2 + 3)

C. [-8-1] + (2+3)

Step-by-step explanation:

When solving [(-10+2)-1] + (2+3)

We follow PEMDAS and solve from left to right.

Since (-10+2) is the first parentheses, we solve and get -8

so it turns [(-10+2)-1] + (2+3) into

(-8-1) + (2+3)

get rid of 2+3's parenthese and solve for -8-1

-9 + 2 + 3

and then continue following steps shown in the question above.

lo.lll

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)