Answer:
Step-by-step explanation:
A discriminate of -8 is never going to give you a real root. D is wrong
You cannot have just 1 complex root, nor can you have just 1 real root unless the discriminate is 0. A and C are both wrong for the same reason. 1 complex root is impossible. They come in pairs.
So the answer is B. You have 2 complex roots.
Answer:
5/6
Step-by-step explanation:
2/3=4/6 and 4/6+1/6=5/6
Submit a picture of the problem
Answer:
C is the only choice that forms a proportion
Step-by-step explanation:
a. 24/31, 20/27
(31 is prime)
b. 8/9, 24/36
(this one doesn't work since it would have to be 3/4) which isn't a proportion
c. 16/5, 64/20
(both 16/5 *4 = 64/20) so it works
d. 6/4 , 15/10
(similar situation to choice b the ratio wont work since 6 doesn't go into 15)
Answer:
<u>x = 25</u>
Step-by-step explanation:
<u>Solving</u>
- ∠CAD = 1/2 ∡ CD
- 180° - 90° - (2x)° = 1/2 (80°)
- 2x = 90° - 40° = 50°
- <u>x = 25</u>
