Answer:
m∠C = 60°
Step-by-step explanation:
First, let's start with the fact that all angles in a triangle add up to 180°. That means that:
x+3x+2x=180°
We can simplify it into:
6x=180°
To figure out x, we need to divide 180 by 6.
That means each x is 30°
m∠C = 2x
m∠C = 60°
Answer:
√61 is the correct answer
Answer:
y = 2x - 13
Step-by-step explanation:
Equation of a line is y = mx + c, m is the gradient and c is the intercept
The line passes through points 4 and -5, x is 4 and y is -5
-5 = 4m + c
When two lines are perpendicular, the products of their gradients are equal to -1, m1 * m2 = -1
x + 2y = 5
2y = -x + 5
y = (-1/2 * x) + 5
therefore m = -1/2
m1 * m2 = -1
m * -1/2 = -1
-m = -2 , therefore m = 2
-5 = 4 * 2 + c
c = -5 - 8, which is -13
Therefore the equation for the line is
y = 2x - 13
Answer:
Step-by-step explanation:
When x=0, y = ab⁰ = a
The y-intercept of the graph is 3, so a=3.