The value(s) of x will the rational expression below equal zero are -2 and 5
<h3>Rational expression</h3>
Given the rational expression (x - 5)(x + 2)
The zero of the equation occur when g(x) = 0
(x - 5)(x + 2) = 0
Get the values of "x"
x - 5 = 0
x = 5
Similarly x + 2 = 0
x = -2
Hence the value(s) of x will the rational expression below equal zero are -2 and 5
Learn more on rational function here: brainly.com/question/1851758
Remark
The point value is (-2,5) So we know the two sides. We need the hypotenuse. We should notice that the x value is minus (-2) and value is y value is plus (5). That means we are in quad 2. Be careful how you read that. (-2,5) is a point. It is not a tangent.
Step One
Find the hypotenuse.
a = - 2
b = 5
c = ??
c^2 = a^2 + b^2
c^2 = (-2)^2 + 5^2
c^2 = 4 + 25
c^2 = 29 Take the square root of both sides.
sqrt(c^2) = sqrt(29)
c = sqrt(29)
Step Two
Find the Cosine of the angle.
Cosine(theta) = adjacent / hypotenuse
Cosine(theta) = -2 / sqrt(29) <<<<<<< Answer
Again, watch out for what you are given.
Answer:
I am assuming you want the percentage increase in the price.
Step-by-step explanation:
The percentage increase is ( 15/50) * 100
= 15 * 2
= 30%.
Answer:
see explanation
Step-by-step explanation:
x = 65° ( vertically opposite angles )
y = 71° ( alternate angles )
The sum of the 3 angles in a triangle = 180° , then
x + y + z = 180° , that is
65° + 71° + z = 180°
136° + z = 180° ( subtract 136° from both sides )
z = 44°
So x = 65°, y = 71° , z = 44°
Answer: 2 mins and 40 second
Step-by-step explanation:
