Answer:
x=(5±√17)/4, or x ≈ 2.281 and 0.219
Step-by-step explanation:
plug into quadratic formula
simplify
≈ 2.281 and 0.219
Answer:
y = 3x + 19
Step-by-step explanation:
Point slope formula: y-y1=m(x-x1)
y - 4 = 3(x - (-5))
y - 4 = 3(x + 5)
y - 4 = 3x + 15
y = 3x + 19
Answer:
20<24
Step-by-step explanation:
Cuz -11- 9 is 20. your welcome
Answer:
y= -1/4x
Step-by-step explanation:
Answer:
theta = all real values
Step-by-step explanation:
sec theta + tan theta = cos theta / (1-sin theta )
sec theta = 1/cos theta
tan theta = sin theta/cos theta
1/cos theta + sin theta /cos theta= cos theta/ (1-sin theta)
(1+ sin theta) / cos theta = cos theta /( 1-sin theta)
using cross products
(1+sin theta) * (1-sin theta) = cos theta * cos theta
1 +sin theta - sin theta- sin^2 theta= cos ^2 theta
1 - sin ^2 theta= cos ^2 theta
cos ^2 theta= cos ^2 theta
this is an identity so it is true for all theta
