I is a good friend and a good uuuuuuyyuyhyyytfikh..
Answer:
1. 4/11 2. 2/10 or 1/5
Step-by-step explanation:
The first thing you need to do is find the total number of marble and then break it into their probabilities. 4+2+5= 11
Red: 4/11, Yellow: 2/11 and Blue: 5/11
So for 1. you just need the probability of pulling a red marble with we already figured out, 4/11.
For the second part you're looking for the probability of pulling a yellow marble after a red was pulled and not replaced. When we take one out and don't replace it the only thing that changes is the total and the number for that color so, the probabilities change to: Red: 3/10, Yellow: 2/10 and Blue: 5/10.
So now you have the probability of pulling a yellow if a red was pulled first without being replaced.
Answer: x = 103
Step-by-step explanation:
this is a 90 degree angle indicated by the box in the corner of the angle.
90 degree angles total 90 degrees.
X - 15 + 2 = 90
move the numbers to the other side of the equal sign to isolate the X
by doing the opposite
x = 90 + 15 -2
x = 103
check your work, X - 15 + 2 = 90
103 - 15 + 2 = 90
answer is correct
Recognize that the given graph resembles the right half of a parabola that opens down. The general form of such a function is f(x) = -x^2. Next, see that the approx. vertex of the parabola is (0,88). This is the max value of the function. Thus, the general form of the function represented by this graph is g(x) = b - ax^2, where a is the coefficient of the x^2 term and b is the vertical intercept of the graph (equivalent here to the vertex of the graph).
Based upon this info, we must eliminate answer choices A and B.
Now we have to determine which answer choice, C or D, best models the graph. Note that P = 88 - (n/4)^2 is similar in form to P = 88 - ax^2, as pointed out earlier. Take a look at the graph, and draw a real or imaginary vertical line through x=n=10. Letting n=10 in 88 - (n/4)^2, we get 88 - (10/4)^2, or 88 - 4, or 84. Either this agrees with or does not agree with the value of the parabolic function shown in the graph. Does 88-4 = 80 seem to be represented by the graph for n = 10? I would say yes. So choose the answer C.
Answer:
The vertex of the function is
Step-by-step explanation:
Suppose we have a quadratic equation in the following format:
The vertex of the function is the point , in which
In this problem:
This means that
So
The vertex of the function is