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harina [27]
3 years ago
10

A cell phone plan has a monthly cost that is shown in the table below. What is the correct statement regarding the average rate

of change during the 40 minute time of talk?
Total minutes of talk time:
0
10
20
30
40
Monthly cost of cell phone
9.95
10.65
11.35
12.05
12.75
Mathematics
2 answers:
Roman55 [17]3 years ago
8 0
Based on the given table, the correct statement regarding the average rate of change during the 40 minutes time of talk is that for every 10 minutes, an additional 0.7 is added. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help. 
yawa3891 [41]3 years ago
6 0

The correct answer is B. This means that for each minute of talk time the monthly bill increases by $0.07.

Average rate of change from t=0 to t=40 can be calculated as:

$12.75-$9.95/40-0=0.07



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Please help! Correct answer only!
bonufazy [111]

Answer:

<em>Expected Payoff ⇒ $ 1.50 ; Type in 1.50</em>

Step-by-step explanation:

Considering that 1 out of the 100 tickets will have a probability of winning a 150 dollar prize, take a proportionality into account;

100 - Number of Tickets,\\1 - Number of Tickets You Can Enter,\\\\1 / 100 - Probability of Winning,\\$ 150 - Money Won,\\\\Proportionality - 1 / 100 = x / 150, where x - " Expected Payoff "\\\\1 / 100 = x / 150,\\100 * x = 150,\\\\Conclusion ; x = 1.5 dollars

<em>Thus, Solution ; Expected Payoff ⇒ $ 1.50</em>

8 0
3 years ago
Divide x4 + 7 by x - 3.. A] x³ - 3x² - 9x - 27 R 88. B] x³ + 3x² + 9x - 27 R -74. C] x³ + 3x² + 9x + 27 R 88
Nastasia [14]
<span> divide a polynomial p(x) by (x-3). Add and subtract the multiple of (x-3) that has the same highest-power term as p(x), then simplify to get a smaller-degree polynomial r(x) plus multiple of (x-3). </span>

<span>The multiple of (x-3) that has x^4 as its leading term is x^3(x-3) = x^4 - 3x^3. So write: </span>

<span>x^4 + 7 = x^4 + 7 + x^3(x - 3) - x^3(x - 3) </span>
<span>= x^4 + 7 + x^3(x - 3) - x^4 + 3x^3 </span>
<span>= x^3(x - 3) + 3x^3 + 7 </span>

<span>That makes r(x) = 3x^3 + 7. Do the same thing to reduce r(x) by adding/subtracting 3x^2(x - 3) = 3x^3 - 9x^2: </span>

<span>= x^3(x - 3) + 3x^3 + 7 + 3x^2(x - 3) - (3x^3 - 9x^2) </span>
<span>= x^3(x - 3) + 3x^2(x - 3) + 9x^2 + 7 </span>

<span>Again to reduce 9x^2 + 7: </span>
<span>= x^3(x - 3) + 3x^2(x - 3) + 9x^2 + 7 + 9x(x - 3) - (9x^2 - 27x) </span>
<span>= x^3(x - 3) + 3x^2(x - 3) + 9x(x - 3) + 27x + 7 </span>

<span>And finally write 27x + 7 as 27(x - 3) + 88; </span>
<span>x^4 + 7 = x^3(x - 3) + 3x^2(x - 3) + 9x(x - 3) + 27(x - 3) + 88 </span>

<span>Factor out (x - 3) in all but the +88 term: </span>
<span>x^4 + 7 = (x - 3)(x^3 + 3x^2 + 9x + 27) + 88 </span>

<span>That means that: </span>
<span>(x^4 + 7) / (x - 3) = x^3 + 3x^2 + 9x + 27 with a remainder of 88</span>
3 0
3 years ago
Read 2 more answers
How do I solve this​
Gemiola [76]

Answer:

Step-by-step explanation:

Simplifying

f(x) = 800(0.85) * x

Multiply f * x

fx = 800(0.85) * x

Multiply 800 * 0.85

fx = 680x

Solving

fx = 680x

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'x'.

f = 680

Simplifying

f = 680

3 0
3 years ago
Special variables that hold copies of the values passed to functions are called
JulsSmile [24]
You would call those arguments.
4 0
4 years ago
What is the what is the answer
ElenaW [278]
The answer would be D. 18/6. We can figure this out because in the question, it says that each shape is worth one whole. There are three shapes so that means when added, the sum is 3 and 18/6, when reduced is 3.
I hope this helped! :-)
3 0
4 years ago
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