Find the domain of the relation {(0, 0), (1, 1), (2, 0)). Then determine whether
1 answer:
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Given:
The quadratic equation is:
To find:
The solution of the given equation in simplest form by using the quadratic formula.
Solution:
If a quadratic equation is , then the quadratic formula is:
We have,
Here, . Using the quadratic formula, we get
The solutions of the given equations are and
.
Therefore, the correct option is B.
Answer:
c. ax+b=ax+b
Step-by-step explanation:
To know what equation has infinite solutions, you first try to simplify the equations:
a.
In this case you have that a must be different of b, but there is no restriction to the value of c, then c can be equal to a or b.
b.
Here you obtain that b = c. But the statement of the question says that a, b and c are three different numbers.
c.
In this case you have that whichever values of a, b and are available solutions of the equation. Furthermore, when you obtain 0=0, there are infinite solutions to the equation.
Then, the answer is:
c. ax+b=ax+b
Answer:
.
Step-by-step explanation:
The z-score for a normal distribution is calculated using the formula:
.
From the question, the distribution has a mean of 50.
and the standard deviation is
.
For a z-score to be negative, then, .
.
.
.
.
.
Any value less than 50 will produce a negative z-score