A guy wire supporting a radio tower is positioned 145 feet up the tower. It forms a 45 degree angle with the ground. About how long is the wire?​

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

the correct answer would be:

220 centimeters

to get this you can use the pythagorean theorem

hope this

step-by-step explanation:

i believe it's a.

i'm not sure on this one, most likely correct.

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right