Answer:
Step-by-step explanation:
Given
Required
Express as a binomial squared
Rewrite as:
Expand
Factorize:
Factor out 0.4x + 6y
Express as a square:
0 would mean sea level
she is 3 miles below sea level or -3 miles above sea level
Answer:
749.764
(If the question is total area of shape)
Explanation:
Check out my attached work
Hope it helps, let me know if you have any questions!
Have nice rest of your day :)
Answer:
x = imaginary number
x₁ = 2<em>i</em>
x₂ = 6<em>i</em>
Step-by-step explanation:
x/(x - 5) =4/(x - 4)
x(x-4) = 4(x-5)
x*x + x*-4 = 4*x * 4*-5
x² -4x = 4x - 20
x² -4x - 4x + 20 = 0
x² - 8x + 20 = 0
x = {-(-8)±√((-8²)-(4*1*20))} / (2*1)
x = {8±√(64-80)} / 2
x = {8±√-16} / 2
√(-16) ∈<em> i</em>
<em>i </em>= set of imaginary numbers
√-16 = -4<em>i</em>
then:
x = {8±(-4<em>i</em>) } / 2
x₁ = {8+(-4i)}/2 = {8-4i)/2 = 4i/2 = 2i
x₂ = {8-(-4)}/2 = {8+4i}/2 = 12i/2 = 6i