If both the zeroes of a polynomial x2+4x+2p are real and equal then find the value of p.
1 answer:
Answer:
p = 2
Step-by-step explanation:
If both zeroes at equal, they must be the negative half of the second term. As this term is 4, . This means that each of the zeroes must be -2. This means that the polynomial must be
This simplifies to
From the intial problem, we can set up an equation and solve for p.
You might be interested in
Answer: Approximately 8.49 feet
==================================================
Explanation:
Draw a right triangle. The reference angle is between the ground and the kite string (aka hypotenuse). The hypotenuse is 12 and the side opposite the reference angle is x.
Refer to the diagram below.
We'll use the sine rule to find x
sin(angle) = opposite/hypotenuse
sin(45) = x/12
12*sin(45) = x
x = 12*sin(45)
x = 8.48528137423857
x = 8.49
This value is approximate.
Make sure your calculator is in degree mode.
I rounded to 2 decimal places, but feel free to round however you need if your teacher instructs otherwise.
