Answer:
36.45
Step-by-step explanation:
tan 32 = a/35
x = 23.1
tan 70 = b/23.1
y = 28.2
x^2 = a^2+b^2
= 23 .1^2 + 28.2^2
= 36.45
The correct answer is option D. Which is the even function is f (x) = x⁴.
<h3>What is an even function?</h3>
The function in which when the sign of the input variable is changed the output remains the same is called the even function. Mathematically we can write it as f(x) = f(-x ).
let us check the given four options:-
A f(x) = √x ; f(-x) = √-x here f(x) ≠ f(-x)
B f(x) = x ; f(-x) = -x here f(x) ≠ f(-x)
C f(x) = x³ + 1 ; f(-x) = -x³ + 1 here f(x) ≠ f(-x)
D f(x) = x⁴ ; f(-x) = (-x)⁴ = x⁴ here f(x) = f(-x)
We can see that in the option D the f(x) = x⁴ is an even function because f(x) = f(-x).
Therefore the correct answer is option D. Which is the even function is f (x) = x⁴.
To know more about even functions follow
brainly.com/question/2284364
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I think its 38 but I'm not sure
Answer:
Alexandra drove 980 miles
Step-by-step explanation:
70×14=980
