Idk what the hell all that is but x = 1.802775637731995
4x^2 - 13 = 0
4x^2 = 13
13/4=3.25
x^2 = 3.25
x = ~1.8
77(7) = 539, the total points of all her tests
539 - 18 + 81 = correct total points = 602
602/7 = 86 which is the new average
Answer:
one
Step-by-step explanation:
i have no idea what kind of test ur taking my guy but have fun
The perimeter of the shape is 30 add all the sides
the correct answer is c 7 feet i hope this helps you out
