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3 years ago

Which is an exponential decay function f (x)=3/4 (7/4)x f (x)=2/3 (4/5)-x. F (x)=3/2 (8/7)-x f (x)=1/3 (9/2)x

2 answers:

7 0

If all the x's are exponents, then 3/2 (8/7)^-x is the only one that decays as x gets bigger. That's because the base is greater than 1 and the x is negative.

zysi [14]3 years ago

6 0

To answer your question the answer is c)3/2(8/7)^x

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In a recent survey, 18 people preferred milk, 29 people preferred coffee, and 13 people preferred juice as their primary drink f

marusya05 [52]

Answer:

Probability that the person preferred milk as his or her primary drink = 0.3

Step-by-step explanation:

Given -

In a recent survey, 18 people preferred milk, 29 people preferred coffee, and 13 people preferred juice as their primary drink for breakfast .

Total no of people is = 18 + 29 + 13 = 60

If a person is selected at random ,

The probability of person preferred milk = $\frac{18}{60}$

The probability of person preferred coffee = $\frac{29}{60}$

The probability of person preferred juice = $\frac{13}{60}$

Probability that the person preferred milk as his or her primary drink =

P ( milk ) = $\mathbf{\frac{No\;of\;favourable\;outcomes}{total\;no\;of\:outcomes}}$

= $\frac{18}{60}$ = 0.3

8 0

3 years ago

Planes Q and R are parallel. Explain how you know lines a and b are skew.

gizmo_the_mogwai [7]

Answer:

We don't know that they skew but if Q and R are the same length then they aren't. But if Q and R are different lengths then they are skew. It would help to post a picture.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

HELP!<br> -1/4 × (-7/9)

boyakko [2]

Answer:

I hope this is helps.

7 0

3 years ago

Partial fraction decomposition<br> 20x+9/25x^2+20x+4

ozzi

Step-by-step explanation:

We have

$\frac{20x + 9}{25 {x}^{2} + 20x + 4 }$

Let's factor the denomiator first,

the denomaitor is a perfect square so we get

$\frac{20x + 9}{(5x + 2) {}^{2} }$

Now, we must think of two fractions that

$\frac{a}{(5x + 2) {}^{2} } + \frac{b}{5x + 2}$

We use a perfect square term for one fraction, then a linear one for the next, because if we set both of the denomiator to the same factor, we would get a inconsistent system.

So right now, we have

$\frac{a}{(5x + 2) { }^{2} } + \frac{b}{5x + 2} = \frac{20x +9 }{25 {x}^{2} + 20x + 4 }$