A negative discriminant indicates no real solutions, since you cannot take the square root of a negative number and get a real answer. Instead, you get an imaginary number, which cannot be graphed on a normal x/y graph.
Answer:
30 feet
Step-by-step explanation:
For this problem we can use ratios 6:4 and x:20. We can also write these ratios as fractions 6/4 and x/20 or 3/2 and x/20. Set the two fractions equal to each other and solve for x:
3/2 = x/20
1.5 = x/20
30 = x
The correct answers are 3x + 33y = -420 AND
X + 140 = -11 y
Please see the work attached for the steps for getting these answers.
Let
x--------> the degree of difficulty of the dive
we know that
1) The highest and the lowest scores are dropped
so
highest scores=
lowest scores=
the remaining scores=![[7.5, 8.0, 7.0, 7.5, 7.0]](https://tex.z-dn.net/?f=%20%5B7.5%2C%208.0%2C%207.0%2C%207.5%2C%207.0%5D%20)
2) Find the total of the remaining scores
![=[7.5+8+7+7.5+7]\\ =37](https://tex.z-dn.net/?f=%20%3D%5B7.5%2B8%2B7%2B7.5%2B7%5D%5C%5C%20%3D37%20)
3) The total of the remaining scores is multiplied by the degree of difficulty of the dive
so

4) This product is multiplied by .6 to determine the final score
![[37*x]*0.6=77.7\\ 22.2*x=77.7\\ x=3.5](https://tex.z-dn.net/?f=%20%5B37%2Ax%5D%2A0.6%3D77.7%5C%5C%2022.2%2Ax%3D77.7%5C%5C%20x%3D3.5%20)
therefore
the answer is
the degree of difficulty of the dive is 
Answer:
q=-1/3
Step-by-step explanation:
Evaluate the exponent
Multiply the numbers
Add the numbers
Evaluate the square root
Multiply the numbers