Good afternoon/evening.
-4^4 = four to the fourth power = (-4)(-4)(-4)(-4) = 256
Remember, when a negative is multiplied by a negative it equals a positive.
For example, exc. 15.
x + y = 10 and 6/x = 9/y; You need y!
=> x = 10 -y and 9x = 6y => 9(10-y) = 6y => 90 - 9y = 6y => 15y = 90 => y = 6.
D: x ≥ 0
7 < √x < 8 ⇒ 7² < x < 8² ⇒ 49 < x < 64
Answer: x = 50 or x = 51 or x = 52 or ... or x = 63.
$3299.62
- compounded daily interest :
total money he will have : $13,123.62
- amount earned : $13,123.62 - $9,824 = $3299.62
Answer:
Hey there!
There are a total of 20 children, and 2+6, or 8 are girls.
Thus the probability of choosing a girl is 8/20, or 2/5.
There are 2 left handed girls, so the probability is 2/20, or 1/10.
Hope this helps :)
