Answer:
Zeros:
Interception with y-axis
Vertex:
(-1, -2)
Step-by-step explanation:
We have the following quadratic function
To find the zeros of the function, make and solve for the variable x
We must factor the expression. Then we use the quadratic formula:
For a function of the form the quadratic formula is:
In this case note that:
Then:
We know that the vertex of a quadratic function is at the point:
Then:
The vertex is: (-1, -2)
The intersection with the y-axis we find it doing and solving for y
Look at the attached image.
Answer:
145%
Step-by-step explanation:
Count up the squares
1 + 45/100
1.45
Change to percent by multiplying by 100
145%
Answer:
= 2.78% probability it will land on both 2 sides.
Step-by-step explanation:
For each trial, there are only two possible outcomes. Either it lands on 2, or it does not. The probability of the spinner landing on two in a trial is independent of any other trial, which means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
One of the six sides is 2:
This means that
If the spinner is spun two times, what is the probability it will land on both 2 sides?
This is P(X = 2) when n = 2. So
= 2.78% probability it will land on both 2 sides.
It is a square because its sides are the same length.