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x =
Answer:
x = 4
Step-by-step explanation:
Let's find the length of JL as a first step. Knowing the result, we can easily find x.
|JL| 1
sin 30 degrees = ----------------- = --------
8√2 2
Then 2 |JL| = 8√2, or |JL| = 4√2
Next, find x: sin 45 degrees = x / |JL| = x / [4√2], and since sin 45 degrees is 1 / [√2],
1
x / [4√2] = -------- which results in x = 4
√2
Answer:
y = 4 is the correct solution.
Step-by-step explanation:
If x = 8, then we can plug this into the equation 5y – 2x = 4 to solve for y:
5y – 2(8) = 4
5y – 16 = 4
5y = 20
y = 4
Therefore, the solution to the system of equations 5y – 2x = 4 and x = 8 is y = 4.
We can check our answer by substituting y = 4 into the original equation:
5(4) – 2x = 4
20 – 2x = 4
-2x = -16
x = 8
Since x = 8 is a solution to the original equation, we can confirm that y = 4 is the correct solution.
(4x - 3) – ( x + 5) = 3(10 - x)
please.....
Answer: 19/3
Step-by-step explanation:
Answers: -1, 1, i
Answer:
OPtion C (i)
Step-by-step explanation:
Given that i is raised to even power.
We have in complex number one part as imaginary number
Imaginary number is denoted by i, which is square root of -1.
In real numbers we can have perfect squares as only positive
Hence square root of -1 is only imaginary
When i is raised to even powers we get
and so on.
i.e. this answer can not be imaginary but alternating between -1 and 1. Hence cannot simplify to i
the correct answer is
C) i