Astring of 10 lightbulbs is wired in such a way that if any individual lightbulb fails, the entire string fails. if for each individual lightbulb the probability of failing during time period t is 0.06, what is the probability that the string of lightbulbs will fail during time period t?

0.6 because theres 10 lights so 0.06 * 10 = 0.6 :D

1 – (0.94)^10

Step-by-step explanation: The string of light bulbs will fail if at least one light bulb fails. So, let’s find the probability of the opposite event and subtract that value from 1.

The opposite event is when none of the 10 light bulbs fails since the probability of each light bulb not to fail is 1-0.06=0.94 then the probability that none of the 10 light bulbs fails is 0.94^10.

Hence, the probability that at least one light bulb fails is 1-0.94^10.

step-by-step explanation:

their are no angles. sorry cant .

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.