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g100num [7]
3 years ago
15

Please Help:

Mathematics
2 answers:
Softa [21]3 years ago
7 0

Answer:

41 degrees F

Step-by-step explanation:

(Ah, calculus...)

In this case, T_0 is 0 degrees F and T_1 is 140 degrees F. k = -0.0815 and t = 15. Plug all these values into the equation:

T(15)=0+(140-0)e^{-0.0815*15} =41.229

41.229 ≈ 41

So, the answer is 41 degrees F.

Hope this helps!

Maslowich3 years ago
5 0

Answer:

41°F

Step-by-step explanation:

T(t) = 0 + (140 - 0)e^(-0.0815t)

T(15) = 140e^(-0.0815×15)

T(15) = 41.22902187

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A principal of ​$7000 is invested in an account paying an annual rate of 7%. Find the amount in the account after 5 years if the
podryga [215]

Answer:

$2,874.19

Step-by-step explanation:

Hope this helps

4 0
3 years ago
Which answer does NOT correctly describe the graph of y = 5x + 12?
Svetlanka [38]
<h2>Answer</h2>

2. The Graph Contains The Point (5, 12)

<h2>Explanation</h2>

Remember that in a linear function of the form y=mx+b, m is the slope/rate of change of the line and b is the y-intercept.

From our equation we can infer that b=12, so the y-intercept of our graph is 12 units above the origin on the point (0, 12). Therefore, choice 2 correctly describe the graph of y = 5x + 12

We can also infer that m=5, so the slope of our line is 5, which is constant, so our line has a constant rate of change. Also, since every integer can be written as a fraction with denominator 1, we can write our slope as m=\frac{5}{1}. Therefore, choices 1 and 2 correctly describe the graph of y = 5x + 12.

Now, remember that any point on the plane has coordinates (x,y), so, to check if a point is on a line, we just need to replace the x and y values in the line equation and check if the equation holds. Our point is (5, 12), so x = 5 and y = 12. Lets replace the values in our line:

y=5x+12

12=5(5)+12

12=25+12

12\neq 37

Since the equation equation doesn't hold (12 is not equal 37), we can conclude that the graph doesn't contain the point (5, 12). Therefore, choice 2 does NOT correctly describe the graph y = 5x +12.


7 0
4 years ago
Read 2 more answers
Pls help answer this question!
Amanda [17]

Answer:

C

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Use the rules of equations and inverse operations to solve the equation.include all your work
AleksandrR [38]

x^3=54 (Subtract 3 from both sides)

x = 3rd power cube root of 54 (Cube root both sides)

27 = 3^3 (3x3x3) therefore  

                                               x = (3) (3rd power cube root of 2)

4 0
2 years ago
at 1pm the level of water in the pool was 8 feet at 4pm the level of water was 2 feet find the constant rate of change of the wa
lakkis [162]

Answer:

2 feet

Step-by-step explanation:

1 pm = 8ft                  

   <em> 2pm = 6ft         </em>The rate of change is 2

<em>     3pm = 4ft </em>

4pm = 2ft

6 0
3 years ago
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