Answer:
110
Step-by-step explanation:
x=110 due to congruent angle
(suggest u to draw 2 straight lines and observe differences and similarities of the 4 angles)
Using simpler trigonometric identities, the given identity was proven below.
<h3>
How to solve the trigonometric identity?</h3>
Remember that:

Then the identity can be rewritten as:

Now we can multiply both sides by cos⁴(x) to get:

Now we can use the identity:
sin²(x) + cos²(x) = 1

Thus, the identity was proven.
If you want to learn more about trigonometric identities:
brainly.com/question/7331447
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Answer:
19 nickels and 5 pennies
Step-by-step explanation:
Let x nickels and y pennies
100 = 5x + y
x + y = 24
y = 24 - x
100 = 5x + 24 - x
4x = 76
x = 19
y = 24 - x = 24 - 19 = 5
Answer:
0
Step-by-step explanation:
3x+2=2
or, 3x=2-2
or, x=0/3
:. x=0