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Anna35 [415]
3 years ago
9

If a2=8, what are the first three terms of the sequence defined by the recursive formula below? an=3an-1+2

Mathematics
2 answers:
Gala2k [10]3 years ago
7 0
The answer is Letter B - 2, 8, 26

<span>Given: an=3an-1+2 ; where a2=8
Required: First three terms of the sequence - a1, a2, a3
Solution:

You need to work back to get a1 since the given is a2.</span><span>
To work back, minus 2 from 8 first before dividing the number by 3. 
 a1 = 8 - 2
 a1 = 6 / 3
 a1  = 2

In getting a3, multiply the given 8 by 3 then add 2. </span>an=3an-1+2 : a3=3(8)+2<span>
a3 = 8 x 3
a3 = 24 + 2
a3 = 26</span>
nordsb [41]3 years ago
4 0

Answer:

The answer is B. I failed this test like five times but I finally figured out its B.

Step-by-step explanation:


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\frac{x}{4} +12=38\\\\ \frac{x}{4}=26\\\\x=104
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3 years ago
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Engineers want to design passenger seats in commercial aircraft so that they are wide enough to fit 95 percent of adult men. Ass
zimovet [89]

Answer:

z=1.64

And if we solve for a we got

a=14.4 +1.64*1.1=16.204

The 95th percentile of the hip breadth of adult men is 16.2 inches.

Step-by-step explanation:

Let X the random variable that represent the hips breadths of a population, and for this case we know the distribution for X is given by:

X \sim N(14.4,1.1)  

Where \mu=14.4 and \sigma=1.1

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.05   (a)

P(X   (b)

We can find a quantile in the normal standard distribution who accumulates 0.95 of the area on the left and 0.05 of the area on the right it's z=1.64

Using this value we can set up the following equation:

P(X  

P(z

And we have:

z=1.64

And if we solve for a we got

a=14.4 +1.64*1.1=16.204

The 95th percentile of the hip breadth of adult men is 16.2 inches.

8 0
3 years ago
Can someone help me ???
ira [324]
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Find an equation of the line l that passes through the point (x, y) = (−9, 2) and satisfies the condition. the x-intercept of l
spayn [35]
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3 0
3 years ago
Question 21
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Answer:

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Step-by-step explanation:

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y-5=-2(x+2)

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6 0
3 years ago
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