Is that .9? or was that period mark accidental?
Simply plug in x = 0
f(x) = x^2 - 5
f(0) = 0^2 - 5
f(0) = -5
Answer: -5
Answer:

Step-by-step explanation:
Given: sin x + cos x
To change the given trigonometry expression in term of sine only.
Trigonometry identity:-
Expression: 
We get rid of cos x from expression and write as sine form.
Expression:

Hence, The final expression is only sine function.
Answer:
1.yes
2.no
3.yes
4.no
Step-by-step explanation:
can i plz get brainliest
<h3>
Answer: 28 degrees</h3>
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Explanation:
Angle DAB and angle ABC are congruent angles due to the parallel lines (note they are alternate interior angles).
So angle DAB = 47 since angle ABC = 47.
Let angle CAE be equal to x for now.
The three angles DAB, CAB, and CAE all add up and combine to form a straight angle which is 180 degrees.
We'll use this fact to find x
(angle DAB) + (angle CAB) + (angle CAE) = 180
(47) + (105) + (x) = 180
x + 152 = 180
x + 152-152 = 180-152 .... subtract 152 from both sides
x = 28
angle CAE = 28 degrees