i know the answer to 1 is 10
Answer:
81 + 81 + 10 aka 172
Step-by-step explanation:
Vertical angles are equal, so
.. 2y +5 = 4y
.. 5 = 2y . . . . . . . . subtract 2y from both sides of the equation
.. 5/2 = y . . . . . . . divide by the coefficient of y
This answer corresponds to the 4th selection.
300^2 + 500^2 = c^2
9000 + 250000=c^2
340000=c^2
sqrt (340000) = c
c = 583
300 + 500 + 583 = 1383
1380 is the perimeter
Answer:
2x² + 5x
Step-by-step explanation:
Given
3x² + 4x - x² + x ← collect like terms
= (3 - 1)x² + (4 + 1)x
= 2x² + 5x
