Convert the equation into a standard form
y=x2+4x+4
y= (x+2)^2
From the equation
vertex is located at (-2,0)
Solve for a to get the coordinates of the focus, from the equation
4a=1
a=1/4
Focus is located at (-2, 1/4)
The equation of the directrix
y=-1/4
The answer is yes u can.
if you look at the numerator, and it is greater than the denominator, this means that it is closer to 1 than it is to 0. an example is 8/5. since the numerator is greater than the denomator, we know that the fraction is closer to 1.
6(f)^0.5
is this what you meant?
We can use the law of sines, which relates the angles and sides of a triangle.
The formula is:
,
where A, B, and C are angles and a, b, c are side lengths.
Let's find the missing angle. The interior angles of a triangle add up to 180 degrees, so the missing angle is 180-70-40 = 70 degrees.
Let's make a proportion and use the two 70 degrees angles and their opposite lengths. Since both sides have the same numerator of 70 degrees, we can equate the denominators together.
Answer:
Step-by-step explanation:
If a watch has fewer than three defects, then either 1.) It has no defects, 2.) it has exactly 1 defect, or 3.) it has exactly 2 defects.
1.) The probability that the watch has no defects is , because for every chime there is a probability of that there is no defect
2.) The probability that the watch has exactly 1 defect is times the number of ways you can choose 1 of 75 of the chimes to be defective, which is , so the probability that the watch has exactly 1 defect is .
3.) For the same reason as 2.), the probability that the watch has exactly two defects is
Since 1.), 2.), and 3.) are mutually exclusive events, the probability of their union is simply the probability of each of them added together, which is