The question is incomplete. The complete question is :
A bulb can either be on or off. A board contains 20 bulbs connected to a randomization circuit that lights up a random sequence every time it is turned on. What is the probability that all the lights will switch on ?
Solution :
It is given that :
There is board connected to = 20 bulbs
And one can either be put ON or put OFF.
Therefore the chance that a bulb is ON = 
It is given that every time a bulb turns ON, the board lights up in a random sequence.
Therefore, the probability of all the lights to be switched ON is given by :
Answer:
Income = 637
Step-by-step explanation:
Income = weekly salary + commission
commission = 6.5% * sales
commission = .065* 4800
= 312
Income = weekly salary + commission
Income = 325+312
Income = 637
Answer:
it's C
Step-by-step explanation:
Answer:
Yes, "All isosceles triangles with congruent vertex angles are similar".
Step-by-step explanation:
Consider the provided statement.
All isosceles triangles with congruent vertex angles are similar.
As we know that the two sides of an isosceles triangle are same.
It is given that the isosceles triangles with congruent vertex angles.
If vertex angles are congruent it means the opposite side of those angles are congruent. Also the sums of the base angles are the same,
As we know the base angles of an isosceles triangle are congruent, so by the AAA similarity we can say "All isosceles triangles with congruent vertex angles are similar".
Or
let say ΔABC and ΔDEF are isosceles triangles where AB=DE and AC=DF
It means ∠B=∠E and ∠C=∠F also it is given that ∠A=∠D
Thus. from AAA similarity we can say "All isosceles triangles with congruent vertex angles are similar".
