Answer:
A: Two angles form a right angle.
Step-by-step explanation:
took the test
True. EH is the diameter of D
Answer:-2/3
Step-by-step explanation:
First of all find the mean that is:
Mean = (1+2+3+4+5+6)/6 = 3.5
1) Draw a frequency distribution table as shown here below
X X - Mean (X-Mean)²
1 1-3.5 (-2.5)²
2 2-3.5 (-1.5)²
3 3-3.5 (-0.5)²
4 4-3.5 (0.5)²
5 5-3.5 (1.5)²
6 6-3.5 (2.5)²
--- ------- -------------
∑=21 ∑=0 ∑ = 17.5 Note than the number of classes is n= 6
Variance = σ² = 17.5/<span>6 = 2.917
</span>Standard deviation = √σ² = √2.917==> σ =1.708 (answer C)
Answer: the two equations are the D so all of the above
Step-by-step explanation:
So I took each equation and then I replaced the x and y with what they gave us (x,y) and I found that it was actually equal to what the equation said so we can say they are solutions of the equations. Have a nice day :)