Using the definition of vertical angles, the value of z is: 15.
<h3>Vertical Angles Pair</h3>
The two pairs of opposite angles formed when two straight lines intersect are called vertical angles, and are therefore congruent to each other.
Thus:
2z + 10 = 40
2z = 40 - 10
2z = 30
z = 30/2
z = 15
Therefore, using the definition of vertical angles, the value of z is: 15.
Learn more about vertical angles on:
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It’s bevause you can see what you are doing instead of doing it all of your head which could get messed up.
Answer:
B
Step-by-step explanation:
1. Given mathematical statement
So,
2. Rewrite it as
So,
3. Combine like terms 
and 
So,
4. Add to both sides:
So,
5. Subtract 3 from both sides:
So,
6. Divide both sides by 5:
So,
Answer:
1.) D
2.) B
3.)
a.) 7x-34
b.) x (division symbol) 45 + 6
4.)
a.) x decreased by 216
b.) the quotient of 15 and x
Answer:
none of the above
Step-by-step explanation:
cohen's d= (Mean of population - mean of sample)/ standard deviation of population
0.5 = (80-mean of sample)/12
Mean of sample= 74
