5/7. You are eliminating one of the 8 original lockers yet you still have 5 possible stars left. Hence a probability of 5 stars over 7 possible lockers left. 5/7 = .7143 or 71.43 %
Answer:
A= 160
Step-by-step explanation:
anlge A is 8 times angle B so angle A is 8B
The sum of supplementary angles is 180
B+ 8B = 180
9B = 180
B= 20
AngleB=20
Angle A = 8*20 =160
Answer:
√85
Step-by-step explanation:
s=[√d1)²+(d2)²]/2
s=(√12²+14²)/2
a=(√340)/2
s=(2√85)/2
s=√85
Since all the angles are congruent, the sides must be congruent too.
So, just have one equation on one side equal to another.
5x= 3x+6
Subtract 3x from both sides.
2x=6
Divide 2 into both sides.
x=3.
We can check this by seeing if all the sides are the same.
5(3)= 15
6(3)-5= 15
3(3)+6= 15
I hope this helps!
~cupcake
Answer:
2
Step-by-step explanation:
We have the equation

The exponent rules to be used are



Comparing the exponents we get

So, the value of
makes the equation true.