Which pair of expressions is equivalent for any variable value greater than zero  answer by today. 3(x+2) and 3x+2 4d+2e and 8d+e f+f+f+g and 3fg b+b+3c and 2b+3c

The last choice, b+b+3c and 2b+3c, is correct.

When adding like terms, you combine coefficients; for this expression, we have 1b+1b+3c = (1b+1b)+3c = 2b+3c

Intersecting secant-tangent theorem states that if a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment.so to break it down: 1. pq acts as the tangent and ps as the secant with an intersection at p.sr = 21rp = 3x + 3pq = 4x + 4following to equation: tangent squared = the two segments multiplied by each otherso (4x + 4) ^ 2 = (3x + 3) • (21) simplifies to 16x^2 - 31x - 47 = 0 or (16x - 47)(x + 1) x = -1 or x = 47/162. pq acts as the tangent and ps as the secant with an intersection at p (again! )sr = 16rp = xpq = 15(15) ^ 2 = 16 • x225 = 16xx = 225/163. the interesting chords are proportional to each other so a ratio is possible to set up: ap dp 10 3 + x = = —— = pc pb 8 xcross multiple to get 10x = (3 + x)(8)x = 12

You must find the surface of the block therefore 98187 dived by 5628 = 583m squared