Answer:
x+63 = 90
x = 27
Step-by-step explanation:
The two angles are complementary, so they add to 90 degrees
x+63 = 90
Subtract 63 from each side
x+63-63 = 90-63
x = 27
The answer
the main rule for a square root calculus is given by √A*√B = √A*B, for all value positive of A and B
so we can extended the given value of the fonction as
√x-7 *√x+1 = √x-7 *√x+1 = √(x-7 )* (x+1)
but the extended form of (x-7 )* (x+1) is (x-7 )* (x+1) = x² + x -7x -7= x²-6x -7
therefore, √(x-7 )* (x+1) = √(x²-6x -7), the value which is equivalent to the radical expression is B)√x^2-6x-7, <span>when x≥7</span>
Answer: The x-intercepts represents the points at which the parabola crosses the axis of x.
Step-by-step explanation:
If it exist then the x-intercepts represent the zeros, roots, or quadratic function, the values of x at y = 0. Then the parabola does not cross the x-axis, so it has no zeros.
Answer: Yes
Step-by-step explanation: