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3 years ago

Part B

Mathematics

1 answer:

Elza [17]3 years ago

6 0

Answer:

copy and paste

Step-by-step explanation:

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A red light flashes every 14 minutes. A blue light flashes every 24 minutes. when will the two lights flash together again if th

natta225 [31]

14×12=168

24×7=168

168÷60=2 hours and 48 minutes

2 hours and 48 minutes+ 8:00AM=10:48AM

Answer: 10:48AM

4 0

3 years ago

In a study, 36% of adults questioned reported that their health was excellent. A researcher wishes to study the health of peop

steposvetlana [31]

Answer:

0.3907

Step-by-step explanation:

We are given that 36% of adults questioned reported that their health was excellent.

Probability of good health = 0.36

Among 11 adults randomly selected from this area, only 3 reported that their health was excellent.

Now we are supposed to find the probability that when 11 adults are randomly selected, 3 or fewer are in excellent health.

i.e. $P(x\leq 3)=P(x=1)+{P(x=2)+P(x=3)$

Formula : $P(x=r)=^nC_r p^r q ^ {n-r}$

p is the probability of success i.e. p = 0.36

q = probability of failure = 1- 0.36 = 0.64

n = 11

So, $P(x\leq 3)=P(x=1)+{P(x=2)+P(x=3)$

$P(x\leq 3)=^{11}C_1 (0.36)^1 (0.64)^{11-1}+^{11}C_2 (0.36)^2 (0.64)^{11-2}+^{11}C_3 (0.36)^3 (0.64)^{11-3}$

$P(x\leq 3)=\frac{11!}{1!(11-1)!} (0.36)^1 (0.64)^{11-1}+\frac{11!}{2!(11-2)!} (0.36)^2 (0.64)^{11-2}+\frac{11!}{3!(11-3)!} (0.36)^3 (0.64)^{11-3}$

$P(x\leq 3)=0.390748$

Hence the probability that when 11 adults are randomly selected, 3 or fewer are in excellent health is 0.3907

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3 years ago

Use the remainder theorem to determine if x=6 is a zero of the following polynomial, and find the quotient and the remainder.

Svet_ta [14]

I think your answer is C correct me if I’m wrong

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2 years ago

Douglas is inviting some friends to his birthday party, and

mote1985 [20]

Answer:

$91/$15=x

Step-by-step explanation:

$100-$9=$91 and 91÷15= 6. omething which means only 6 pizza can be purchased.

The answer up above just says 91 divided by 15 gives you the amount of pizzas. He can only buy 6 pizzas with a pound remainding

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3 years ago

How do I had mixed numbers as a 5th grader

Fantom [35]

Simple. 1.5 as a fraction is 1 & 1/2. If you know how to make fractions decimals, you're set.

4 0

3 years ago