Add and subtract the values. Express your answer in scientific notation. (6.15x 10^8)-(2.5x 10^7)+(3.4 x 10^9)
6.24 x 10^8
7.05x 10^8
3.99 x 10^9
4.04 x 10^9

State if the two triangles are congruent. if they are, state how you know?

Secant be and cf intersect at point d inside a what is the measure of cde

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4