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Natalka [10]
4 years ago
15

A sequence can be described using the rule an = –2 + 3(n-1). Which is the

Mathematics
1 answer:
pishuonlain [190]4 years ago
6 0

Answer:The 20th term of the arithmetic sequence is 55

Step-by-step explanation:

A sequence can be described using the rule:

an = –2 + 3(n-1)

Where

an is the value of the nth term of the arithmetic sequence.

- 2 is the first term of term of the sequence.

n is the number of terms in the sequence.

To determine the 20th term, we will substitute n = 20 into the equation. It becomes

a20 = - 2 + 3(20 - 1)

a20 = - 2 + 3×19

a20 = -2 + 57 = 55

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8 0
3 years ago
Approximate: log 1/2 5
zubka84 [21]

Answer:

-2.32193...

Step-by-step explanation:

log.5 (5)

5 0
4 years ago
Read 2 more answers
Solution
Anit [1.1K]

Answer:

28.26658805 (I included every digit in case your teacher needs you to round)

Step-by-step explanation:

In order to find x, we need to isolate x by subtracting 15^2 and taking the square root of both sides.

Thus, we have:

15^2+x^2=32^2\\x^2=32^2-15^2\\\sqrt{x^2} =\sqrt{(32^2-15^2)} \\\sqrt{x^2}=\sqrt{799}  \\x=28.26658805

7 0
2 years ago
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Ierofanga [76]
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7 0
3 years ago
Suppose a uniform random variable can be used to describe the outcome of an experiment with the outcomes ranging from 50 to 80.
taurus [48]

Answer:

The correct answer is \frac{1}{3} = 0.33.

Step-by-step explanation:

A uniform random variable is used to describe the outcome of an experiment with the parameters being 50 and 80.

Probability density function = f(x) = \left \{ {{\frac{1}{b-a} , a

Here a = 50 and b = 80.

We need to find the value of probability of this given experiment in an outcome less than 60.

∴ P(X<60) = \frac{60-50}{80-50} = \frac{10}{30} = \frac{1}{3} = 0.33.

Thus the required probability is given by 0.33.

7 0
3 years ago
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