Which is the best estimate for the difference of 9/16-4/9
1 answer:
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The x-coordinate of the given endpoint will be "".
According to the question,
The end points are:
Distance,
As we know,
The distance formula,
→
By substituting the values, we get
→
→
→
→
→
→
Thus the above answer is right.
Learn more:
Answer:
A
Step-by-step explanation:
Recall that for a quadratic equation of the form:
The number of solutions it has can be determined using its discriminant:
Where:
- If the discriminant is positive, we have two real solutions.
- If the discriminant is negative, we have no real solutions.
- And if the discriminant is zero, we have exactly one solution.
We have the equation:
Thus, <em>a</em> = 2, <em>b</em> = 5, and <em>c</em> = -<em>k</em>.
In order for the equation to have exactly one distinct solution, the discriminant must equal zero. Hence:
Substitute:
Solve for <em>k</em>. Simplify:
Solve:
Thus, our answer is indeed A.