Step-by-step explanation:
x² + 2x - 5 = 0
that is the same as
x² + 2x + 1 = 6
(x + 1)² = 6
x + 1 = ±sqrt(6)
x = -1 ± sqrt(6)
x1 = -1 + sqrt(6)
x2 = -1 - sqrt(6)
n² - 20n + 2 = 4
this is the same as
(n - 10)² = 102
n - 10 = ±sqrt(102)
n = 10 ± sqrt(102)
n1 = 10 + sqrt(102)
n2 = 10 - sqrt(102)
Height of the figure is 12 ft.
Solution:
In this image parallel sides and area are given but height is not given.
We have to find the height of the figure.
Given image is a trapezoid.
Parallel sides = 4.2 ft and 9 ft
Area = 79.2 ft²
Area of the trapezoid = 


79.2 = 6.6 × h
Divide by 6.6 on both sides, we get
12 = h
Switch the sides of the equation.
h = 12
Height of the figure is 12 ft.
Answer:
The radius will be 10.72 cm
Step-by-step explanation:
Hope this helps
The Solution:
Given:
We are asked to write the inequality that represents each situation.
Case 1:
Using d to represent the distance (in feet) to the nearest exit door, we have

Case 2:
Using t to represent the time (in minutes) of a runner who qualifies for the
championship, we have: