Answer:

Step-by-step explanation:
When you multiply two exponents together with the same base, the exponents get added
Here the base is the same ie b
So 
The constants multiply in the usual sense so 7(-9) = -63
Answer is 
Answer:
No.
Step-by-step explanation:
This is because if one event happens before the other, the odds of the other event happening will change due to less cards being left to pick from.
Consider the scenario where 4 of a kind all contained 10's from the deck.
The possibility of a full-house with a 10 in the pile would be zero if there were no 10's left after the four of a kind turn had been made. Thus, since the four of a kind affects the probability of the full house, and vice versa, they are both dependent on each other and hence not exclusive events.
Answer:
The ratio is 15:5 or 3:1. If Marianne is 3 years old, her brother is 1. And it is proportional...
Step-by-step explanation:
<u><em>Answer: x=8</em></u>
Step-by-step explanation:
subtraction property of equality is subtracting the same number from both sides of an equation does not change the equation.
subtract by 10 from both sides of an equation.
x+10-10=18-10
simplify
18-10=8
<u><em>x=8</em></u>
Hope this helps!
Thanks!
Have a great day!
Answer:

Step-by-step explanation:
we know that
The length of a circle is equal to the circumference

where
r is the radius of the circle
In this problem we have

The length of semicircle is equal to

substitute

