Answer:
2(x-1)(x+1)
Step-by-step explanation:
x2x-2
=2(x^2-1)
=2(x-1)(x+1)
Answer: 50
Step-by-step explanation:
3(50)-14=136
Answer:
Step-by-step explanation:
∠DHG is an inscribed angle. This angle, by definition, measures half the measure of its intercepted arc. The intercepted arc is arc DG, the one in question. This means that, by the rule, if the angle is 85 degrees, the arc is 2(85) = 170°
Answer:
9440
Step-by-step explanation:
4% of 9000=360. Knowing that, we can do 9000-360 which equals 8640+800 is 9440. Hope this helps :)
Given:
Total number of coins (Quarters and dimes) = 60
Total amount = $12.45
To find:
The number of quarters and dimes.
Solution:
Let x be the number of quarters and y be the number of dimes.
We know that,
1 quarter = 0.25 dollar
1 dime = 0.10 dollar
Total coins:
...(i)
Total amount:
...(ii)
From (i), we get
...(iii)
Putting this value in (ii), we get




Divide both sides by 0.15.


Putting x=43 in (iii), we get


So, the number of quarters is 43 and the number of dimes is 17.
Therefore, the correct option is b.