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Dmitry [639]
3 years ago
10

Nine times the input minus seven is equal to the output. If the input is -1, what is the output?

Mathematics
1 answer:
uranmaximum [27]3 years ago
7 0

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f(x) = 9x - 7

f( - 1) = 9( - 1) - 7

f( - 1) =  - 9 - 7

f( - 1) =  - 16

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

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A child starts a playground swing from standing and doesn't use her legs to keep swinging. On the first
yanalaym [24]

Answer:

The equation is m(n) = 24(0.75)^{n}

Step-by-step explanation:

Let the exponential function is m(n) = a(b)^{n}, where m is the angle of the swing forward and n is the number of swings.

Here, a and b are constants.

Now, for n = 1, m = 18 degrees and for n = 2, m = 13.5 degrees.

Therefore, the two equations that we can write are :

18 = a(b)^{1} = ab ............. (1) and

13.5 = a(b)^{2} ................. (2)

Now, solving the above two equations we get,

\frac{ab^{2} }{ab} = \frac{13.5}{18} = 0.75

⇒ b = 0.75

So, from equation (1) we get, a = \frac{18}{0.75} = 24

Therefore, the equation is m(n) = 24(0.75)^{n} (Answer)

6 0
3 years ago
Three roots of a fifth degree polynomial function f(x) are -2, 2, and 4 + i. Which statement describes the number and nature of
Juli2301 [7.4K]

We know that imaginary roots always come in pairs, so we already know 4 solutions

-2, 2, 4 + i and a pair of 4 + i

Since imaginary roots always come in pairs we wont have more than 2 imaginary roots, since its a fifth degree root and we can only have 5 roots

So for sure, we will have 3 real roots and 2 imaginary roots

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4 years ago
What kind of property can I use for this question: 31+27+29?
Fofino [41]

Answer:

<h2>====LEARN WITH REY====</h2>

What kind of property can I use for this question: 31+27+29?

In the properties used for this question use the properties of the fraction calculation

Step-by-step explanation:

If counted then the final result

31

27

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87

<h3># Study together brainly</h3><h3># Learn with rey</h3>

<h3>Question code : 5.2.7</h3><h3>Course : Math</h3><h3>Theory : Splash</h3>

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Citrus2011 [14]

Answer:

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Step-by-step explanation:

First, you multiply the number of bottles which is 3, by the cost of each bottle which is 4.

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Sonja [21]

Answer:

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Step-by-step explanation:

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