Use the formula 0 = b^2-4ac
0 = -b^2-4(2)(-9)
0 = -b^2+72
b^2 = 72
b = square root of 72
b = 2 real numbers
Answer:
20
Step-by-step explanation:
Using the rule of radicals
×
⇔ 
Given
× 
= 
= 
= 20
Answer:
1
Step-by-step explanation:
Anything to the power of 0 is 1
The mode of the data set: {10,2,8,9,5,2,6} is 2.
The reason why is because it’s the most frequent number being use. It occurs twice as you can see in the data set.