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zzz [600]
3 years ago
10

12.50+0.40e=14.75+0.25e

Mathematics
1 answer:
DanielleElmas [232]3 years ago
3 0

12.50+0.40e=14.75+0.25e

-12.50             -12.50        Subtract 12.50 to elimanate on the right side to isolate e

0.40e=2.25+0.25e          left from subtracting 12/50

-0.25            -0.25e           subtract 0.25e to put e on one side.

0.15e=2.25                         left from subtracting 0.25 e

0.15e/0.15=2.25/0.15          divide to isolate e and to get you're answer

e=15



Hope it helps!                    

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the length of a flag is 0.3 foot less than twice its width. if the perimeter is 14.4 feet longer than the width, find the dimens
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4 0
4 years ago
Is domain of f(x,y) = 1 + (4 -y^2)^1/2 open, closed or neither<br><br> is it bounded or unbounded?
omeli [17]

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Closed and Bounded.

Step-by-step explanation:

Hi there!

1) Let's start by finding the values in which the function is defined. Remember that this can be rewritten:

f(x,y) = 1 + (4 -y^2)^{\frac{1}{2}} \:id\:est\:f(x,y)=1+\sqrt{(4 -y^2)}

Since every quadratic root are defined for values \geq 0  then, this help us to understand that we need calculate what interval this Domain is:

4-y^{2} \geq 0\\4-y^{2}-4\geq -4\\-y^{2}\geq-4 \\y^{2}\leq4\\-2\leq y\leq 2

D=[-2,2]

2) Graphically speaking, the domain is closed. For the values -2 and 2 are included, and bounded.

Bounded functions have all of their points contained by some circle origin centered. Check it out below.

6 0
4 years ago
At 7:00 a.m., Alicia pours a cup of tea whose temperature is 200°F. The tea starts
EastWind [94]

Answer:

Step-by-step explanation:

Here we have the temperature variation with time given in an exponential equation as follows;

Let the temperature at time x (in minutes) = y

Therefore, y = a × mˣ + b

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b = Shift of the curve or the limit value of the decreasing exponential function as x → ∞

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Therefore. 200 = a × m⁰ + c = a + c

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4 0
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Softa [21]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

(4, 1)

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

~Solve by Graphing~

  • I graphed the given equations in a program.
  • The point of intersection, if the lines pass, would be the solution.
  • The point of intersection in the given system of equations is (4,1).
  • This means that (4,1) is the solution.
  • See the graph attached.

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

4 0
3 years ago
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