From a3 to a4 is ONE r a3 * r = a4
100 * r = -500
r = -5
a1 * r * r = a3
a1 * (-5)(-5) = 100
a1 = 4
answer c
Selling 2/3 means he has 1/3 left 1/3 * 60
Selling 1/2 means he is still left with 1/2 1/2 * 1/3 * 60
= 1/6 * 60 = 10 left or he sold 50 toys .
10 c 3 = 120 subsets with 3 elements
each element has a 3 out of 10 chance of being in teh subset 3/10 * 120 = 36 substes with the number '5'
Here is a long discussion of this question from a while back :
https://web2.0calc.com/questions/how-many-ways-are-there-to-put-6-balls-in-3-boxes-if-the-balls-are-distinguishable-and-the-boxes-are-distinguishable
e = 7 o This is given
Then
e-12 = o + 12 sub in the red equation
7 o - 12 = o + 12
6 o = 24
o = 4 then pee = 7 * poo = 28 total = 32 coins
1) you could also use Heron's formula
semi perimeter = s = (25 + 25 + 30)/2 = 40
area = sqrt (s (s-JK)(s-JL)(s-KL) )
area = sqrt ( 40(15)(15)(10)) = 300 units2
Be careful with that stuff.....
... According to Snape, if you did combine Powdered Root of Asphodel and an infusion of Wormwood, you'd brew a sleeping potion 'so powerful it is known as the Draught of Living Death.
Te other zero will be just as far from the vertex as the given one BUT on the OTHER side of the vertex
39,0
https://web2.0calc.com/questions/help_72524
Here is the majority of this answer....you can finish it
After two years :
Jose has 50 000 (1+ .04)2
Patric has 50 000 ( 1 + .04/2)(2*2)
