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Wittaler [7]
2 years ago
7

Two sequences have the formulae 3n - 1 and 7n + 2. A new sequence is formed by the numbers which appear in both of these. Determ

ine the nth term of the new sequence.​
Mathematics
2 answers:
Jobisdone [24]2 years ago
5 0
Oh ya I can w it. Oh t no. Oh ya
Sonja [21]2 years ago
4 0

Answer:

Two sequences have the formulae 3n-1 and 7n+2 . A new sequences is formed by the number which appear in both of these sequences.

Step-by-step explanation:

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The Candy Store is having a 30% off sale. Emma is buying candy worth $7.50. Who much will the Candy worth after the discount? Pl
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7.50 x 0.30= $2.25
7.50- 2.25= $5.25
The candy will be worth $5.25 after adding the discount.
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A division problem is shown
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Step-by-step explanation:

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3 years ago
A surgical technique is performed on seven patients. You are told there is a 70% chance of success. Use a table to find the prob
kiruha [24]

Answer:

31.77% probability the surgery is successful for exactly five patients.

Step-by-step explanation:

For each patient, there are only two possible outcomes. Either the surgery is successful, or it is not. The probability of the surgery being successful for a patient is independent of other patients. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

A surgical technique is performed on seven patients.

This means that n = 7

You are told there is a 70% chance of success.

This means that p = 0.7

Find the probability the surgery is successful for exactly five patients.

This is P(X = 5).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 5) = C_{7,5}.(0.7)^{5}.(0.3)^{2} = 0.3177

31.77% probability the surgery is successful for exactly five patients.

5 0
3 years ago
The ratio of hot dogs to hamburgers on a barbeque table is 7:3. If there are 51 hamburgers on the table then how many hot dogs m
Mrac [35]

Answer:

119 hotdogs

Step-by-step explanation:

Let 7x = no. of hotdogs

then 3x = no. of hamburgers

3x = 51

x = 17

7(17) = 119 hotdogs

3 0
2 years ago
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