Answer:
18 inches
Step-by-step explanation:
Applying,
Pythagoras theorem,
a²= b²+c²
Where a = hypotenus, b = base of the triangle, c = height.
make c the subject of the equation
c = √(a²-b²)................. Equation 2
From the diagram attached,
Given: a = 36 in, b = (36/2) in = 18 in
Substitute these values into equation 2
c = √(36²-18²)
c = √(1296-324)
c = √(972)
c = √(972)
c = √(324×3)
c = 18 inches
A) b^2 + 4b + 4
b) x^2 - 9
Answer:
see explanation
Step-by-step explanation:
The complex number z = a + bi is made up of 2 parts
a ← the real part and
bi ← the imaginary part ( always with the i in it )
given z = - 60i + 80
real part = 80 and imaginary part = - 60i
Answer: 68
Step-by-step explanation:
By the inscribed angle theorem, arc BA measures twice of 34 degrees, which is 68 degrees.