To solve this problem you must apply the proccedure shown below:
1. By defnition, sine is one of the trigonometric functions. The sine of an angle can be written as below: "sin(α)".
2. The sine of 30 degrees, is:
sin(30°)=1/2
3. Therefore, the answer for the exercise shown above: sin(30°)=1/2
Answer:
a. a + 10 is the correct option.
1. y= 2x
2. (0, 5)
3. y = 3x + 12
<h3>What is Algebra?</h3>
Algebra is the part of mathematics that helps represent problems or situations in the form of mathematical expressions.
1. let us take (0,0) and (1, 2)
m= 2-0/1-0
m= 2
So equation of line
y- 0 = 2(x-0)
b
2. y= 3x+5
passes through (0, 5)
3. y= 3x+5
m = 3
We need the equation of a line with slope 3 that passes through point (0, 12).
y - y1 = m(x - x1)
y - 12 = 3(x - 0)
y - 12 = 3x
y = 3x + 12
Learn more about algebra here:
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Answer:
The coefficient is the numerical value in front of the variable so some examples.
Ex: 3x
3 is the coefficient
Ex: 9x²
9 is the coefficient
Ex: x³
1 is the coefficient because in front of the variable there is an imaginary 1 if there is no numerical value in front of the variable.
Ex: -9x
-9 is the coefficient.
We can start with "All real number," then we eliminate certain value what would cause zero in denominator;
Here, we have denominator of √(2x+8)
We need to exclude value of x from real number such that √(2x+8) = 0 So solve for x here;
√(2x+8) = 0
[√(2x+8) ]² = 0²
2x+8 = 0
2x = -8
x = -4
So we cannot have x to be -4, otherwise denominator would be zero.
So exclude -4 from "All real number"
Now we have domain of (-∞, -4) U (-4, ∞) or All real number; x ≠ -4.