D. 121
Same shape just has opposite degrees
Answer:
-2*sqrt(3)/3
Step-by-step explanation:
The last one , because I will now solve it for you and prove therefore.
x²–4x+5=0;
D=(–4)²–4•5=16–20= –4= (2i)².
So:
x1= (4–2i)/2= 2–i
x2= (4+2i)2= 2+i.
This is the whole answer....
Three other u will solve by yourself and have roots which will not be suitable.
Answer:
Hypothesis
Step-by-step explanation:
Hypothesis:
- It is an assumption or explanation that need to be tested.
- It determines the claim in the testing.
- There are two types of hypothesis: Null hypothesis and alternate hypothesis.
- Null hypothesis says that the sample is taken from the population.
- Alternate hypothesis states that the sample does not belong to the defined population.
A hypothesis is a testable claim or statement, that is yet to be tested, concerning the relationship among variables that can be observed.
Answer:
x < 6
Step-by-step explanation:
1. 3x+2x = 5x
2. 5x - 8 < 22
3. 22+ 8 =30
4. 5x < 30
5. 30/5 = 6
6. x < 6
