(1 point) Let T be a linear transformation from R3 to R3 . Determine whether or not T is one-to-one in each of the following situations: B 1. Suppose T(a)=u, T(b)=v, T(c)=u+v, where a, b,c, u,v are vectors in R3. C 2. Suppose T is an onto function A 3. Suppose T(−1,−1,−3)=u, T(0,−2,3)=v, T(−1,−2,0)=u+v. A. T is not a one-to-one function B. T is a one-to-one function C. There is not enough information to tell

answer: get jesus in your life

step-by-step explanation:

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