Its two squares, so you need to start by finding the perfect roots that go into 117. If you need more help after that just comment :)
Answer:
--3 ±sqrt((-3)^2 -4(4)(-9))
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2(4)
Step-by-step explanation:
4x^2-5=3x+4
We need to get this in standard form to answer the question
Subtract 3x from each side
4x^2-3x-5=3x-3x+4
4x^2-3x-5=+4
Subtract 4 from each side
4x^2-3x-9 =0
a = 4
b = -3
c = -9
-b ±sqrt(b^2 -4ac)
---------------------------
2a
--3 ±sqrt((-3)^2 -4(4)(-9))
-------------------------------
2(4)
Answer:
16.1
Step-by-step explanation:
Answer:
x ≈ 41.6°
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan x = 
= 
= 
= 
, then
x = 
( ) ≈ 41.6° ( to the nearest tenth )
