Answer:
B
Step-by-step explanation:
Given
sinΘ =
, then
Θ =
(
) = 45° → B
Answer:
Multiplay 30 by 5 Then multiply five-by-five then Multiply 20 by 5 Then take away your answer
Answer:

Step-by-step explanation:
Use the square of a binomial theorem
= 
Now expand the given equation:

Hope this helps :)
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Answer:
Step-by-step explanation:
y = -x-3
y = x^2 + 4x + 1
x^2 + 4x + 1 = -x-3
x^2 + 5x + 4 = 0
Quadratic Formula
x = [-5±√(5²-4⋅1⋅4)]/[2⋅1] = [-5±√9]/2 = [-5±3]/2 = 1,-4
(x,y) = (1,-4) of(-4,1)