Step-by-step explanation:
4x² + 8x − 7 = 0
4x² + 8x = 7
x² + 2x = 7/4
x² + 2x + 1 = 11/4
(x + 1)² = 11/4
x + 1 = ±√(11/4)
x = -1 ± √(11/4)
Answer:
A
week 1 - 62,68,68,68,69,70,70,72,72,75,75,76,78,78,80,80,80,89,89
week 2 - 62,68,68,68,69,70,70,72,72,72,75,75,76,78,78,80,80,80,85,86,86,86,88,88, 88,88,89,89,89,89
(bold = median)
week 2 median = 79 > week 1 median = 75
3x+x=-7-5
4x=-12
x=-12/4
x=-3
2 cm
Answer: AA Similarity
Since both shapes have two corresponding angles that are congruent, AA similarity is applied here.
