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SpyIntel [72]
3 years ago
13

18=5a-2a+3 answer this pleaseee

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
4 0

Answer:

a=5

Step-by-step explanation:

18=5a-2a+3

Combine like terms

18 = 3a +3

Subtract 3 from each side

18-3 = 3a+3-3

15 = 3a

Divide by 3

15/3 =3a/3

5 =a

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Find the average rate of change from x = 3 to x = 15 for the function f(x) = 0.01(2)x
julsineya [31]
The average rate of change for this is the slope of the secant line that connects those 2 points (3, y) and (15, y).  What we need for the slope formula of change in y over change in x are the y values which are unknown as of right now. We can find them though! Don't worry! The equation is y = .01(2)^x. Using that equation, let's sub in both the 3 and the 15 and find the corresponding y values. Subbing in first a 3 gives you y = .01(2)^3, and y = .08.  Subbing in a 15 gives you y = .01(2)^15 and y = 327.68. Now we have the coordinates we need to find the slope of the secant line connecting those 2 points: (3, .08) and (15, 327.6). Fitting those into the slope formula gives us (327.68-.08)/(15-3). Simplifying that is 327.6/12 which divides out to 27.3
3 0
4 years ago
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tekilochka [14]

Answer:

3

Step-by-step explanation:

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6 0
3 years ago
A circle whose area is 4 has a radius of x find the area of a circle whose radius is 3x
____ [38]
The first one is 1.12867 because you need to set it up like this.
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The second one is done simply by multiplying it out.
A=3.14(3x)squared
A=3.14(9x[squared])
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7 0
3 years ago
Read 2 more answers
Solve this please <br><br> 2+x=x+2
Travka [436]

Answer

2+x=x+2

2+1x =1x +2

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6 0
3 years ago
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nadya68 [22]

Answer:

84 - c

Step-by-step explanation:

The correct expression would be 84 - c

4 0
3 years ago
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