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3 years ago

I need to get this right to finish the lesson

Mathematics

1 answer:

almond37 [142]3 years ago

6 0

For each job you complete, you get quadruple (4 times) the amount of pennies as the previous job. This is a geometric sequence, which looks like $4^1, 4^2, 4^3, ...$ ! Therefore, the 9th job will give you $4^9$ pennies, or 262,144 pennies.

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65 people like cricket or tennis .40 of them like cricket while 30 like cricket only .How many like tennis only?How many like te

kirza4 [7]

Answer:

101 Dalmatians

Step-by-step explanation:

4 0

3 years ago

Find the four rational numbers between 2/3 and 5/6

Sav [38]

Answer:

Step-by-step explanation:

LCM of 3 and 6 = 6

2/3 = (2×2) / (3×2) = 4/6

4/6 = (4×5) / (6×5) = 20/30

5/6 = (5×5) / (6×5) = 25/30

Hence, 21/30, 22/30, 23/30 and 24/30 are four rational numbers between 2/3 and 5/6.

4 0

3 years ago

Aron flips a penny 9 times. Which expression represents the probability of getting exactly 3 heads?

DedPeter [7]

Answer:

$9C3*(0.5)^3(0.5)^6$

Step-by-step explanation:

The binomial probability formula shown has variables which represents:

n is the total number of trials (here, we flip penny 9 times, hence n = 9)

k is the number we want to find (here, we want the probability of 3 heads, so k = 3)

p is the probability of success (here, success means getting heads. So, in a coin flip the probability of heads is always 1/2, so p = 1/2)

<em>Putting all the info into the equation and using formula for nCk, we get:</em>

$P(k successes)=nCk*p^{k}(1-p)^{n-k}\\P(3Heads)=9C3*(0.5)^3(1-0.5)^{9-3}\\P(3Heads)=9C3*(0.5)^3(0.5)^6$

The first expression shown in the answer choices is right.

3 0

3 years ago

Read 2 more answers

A school has 360 students, 4 9 of whom are boys. How many boys is that? How many girls?

Rama09 [41]

Answer:

The answer is 160. There are 160 boys in the school. Take 360 divide by 9, then multiply by four.

Step-by-step explanation:

6 0

3 years ago

Estimate 306% of 25 hkhiuiuuigkuuigigiiuuu

Snowcat [4.5K]

306% of 25

= (306/100) * 25

= 3.06 * 25

= 76.5

6 0

3 years ago