Answer:
me too
Step-by-step explanation:
Probability that the questions are answered corectly1/4 = 0.25
probability that they are answered wrong 3/4 = 0.75
probability that 4 out of 7 are corect 7C4(0.25)4(0.75)3 which equals 0.0577
Answer:
The radius is r=5 units
Step-by-step explanation:
we know that
The equation of the circle in standard form is equal to

where
(h,k) is the center and r is the radius
we have

Convert to standard form
Group terms that contain the same variable, and move the constant to the opposite side of the equation

Complete the square twice. Remember to balance the equation by adding the same constants to each side


Rewrite as perfect squares

therefore
The center is the point (6,-3) and the radius is r=5 units
Step-by-step explanation:
calculate the x-intercept by making y=o and substitute the values of x into the equation to get y-values
Answer:

Step-by-step explanation:
In a right triangle, the hypotenuse is always the longest side. Since AC = BC, AB is the Hypotenuse.
Using Pythagoras theorem
