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aalyn [17]
3 years ago
10

What is the 13th term in the arithmetic sequence described by this explicit formula? a(n) = 84 + (n – 1)(–6)

Mathematics
1 answer:
Vinvika [58]3 years ago
5 0

Answer:

12

Step-by-step explanation:

Just place 13 instead of n.

a(13) = 84 + (13 - 1)(-6)

        = 84 + (12)(-6)

        = 84 + (-72)

        = 84 - 72

        = 12(Answer)

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The least common denominator of 2/5, 1/2, and 3/4 is:
Natali5045456 [20]

Answer:

20

Step-by-step explanation:

20 is the least common denominator

3 0
3 years ago
If 89 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would di
cricket20 [7]

Answer:

0.6836

Step-by-step explanation:

(weight - mean weight) = 48

Variance, s² = 204,304

Sample size, n = 89

We need to obtain the Zscore :

Zscore = (X - mean) / standard Error

Zscore = (weight - mean weight ) / (s/√n)

s = √204304 = 452

The difference from the meanncoukdnbe either to the right or left :

Zscore = - 48 / (452/√89) OR 48 / (452/√89)

Zscore = - 48 / 47.911904 OR - 48 / 47.911904

Zscore = - 1.002 or 1.002

P(Z < - 1.002) = 0.1582 (using Z table)

P(Z < 1.002) = 0.8418

P(Z < 1.002) - P(Z < - 1.002)

0.8418 - 0.1582

= 0.6836

6 0
3 years ago
The table represents a function.
mezya [45]

Answer:

-8

Step-by-step explanation:

You are given the following table representing the function f(x):

\begin{array}{cc}x&f(x)\\-4&-2\\-1&5\\3&4\\5&-8\end{array}

This means

f(-4)=-2\\ \\f(-1)=5\\ \\f(3)=4\\ \\f(5)=-8

Hence,

f(5)=-8

8 0
3 years ago
Read 2 more answers
A train travels 95 kilometers in 1 hours, and then 97 kilometers in 1 hours. What is its average speed?
aleksandrvk [35]
Average speed is given by [Total Distance] ÷ [Total Time]

Average speed = \frac{95+97}{1+1} = \frac{192}{2}=96 km/hour
8 0
3 years ago
Please help me with this!!!
MrMuchimi

Answer:

yea

Step-by-step explanation:

4 0
3 years ago
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