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leva [86]
3 years ago
14

Find an expression which represents the difference when (6x-3y) is subtracted from (9x+2y) in simplest terms.

Mathematics
1 answer:
Alex73 [517]3 years ago
6 0

Answer:

3x+5y

Step-by-step explanation:

Subtract (6x-3y) from (9x+2y):

(9x+2y)-(6x-3y)

This can also be seen as:

(9x+2y)-1(6x-3y)

Distribute the -1 to (6x-3y):

(9x+2y)-1(6x)-1(-3y)\\\\(9x+2y)-6x+3y

Simplify the parentheses:

9x+2y-6x+3y

Group like terms:

(9x-6x)+(2y+3y)

Combine:

3x+5y

This expression can't be further simplified. Therefore, 3x+5y is the answer.

:Done

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Solve for x:<br> 3/4 Y -7=5
olchik [2.2K]

Answer:

16

Step-by-step explanation:

3/4y-7=5

*multiply both sides of the equation by 4

= 3y-28=20

*move <u>constant</u> to the right-hand side and change its sign

=3y=20+28

*add the numbers <u> </u>

=3y=48

*divide both numbers by 3

and that's how you get 16

3 0
3 years ago
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The angles below are supplementary. What is the value of x?<br>6x + 48)​
Bingel [31]

Answer:

8 is your answer.

Step-by-step explanation:

If i think that i'm doing this right.

6x + 48

6       6   divide by 6 on both sides.

  x = 8    

Hope my answer has helped you!

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3 years ago
Find surface area of right cone with diameter of 12 meters and a slant height of 9 meters
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3 years ago
A man tips a server $3.00 on meal cpsting $14.50. What percentage of this cost os the tip?
guajiro [1.7K]

Answer:

20.7%

Step-by-step explanation:

3/14.5 = 0.2068

Take 0.2068 and multiply it by 100 to get its percent value which is about 20.7%

$3.00 is 20.7% of $14.50

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3 years ago
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Differentiating Exponential functions In Exercise,find the derivative of the function. See Example 2 and 3.
Citrus2011 [14]

Answer:

f'(x)=-5ae^{ax}=a f(x), where a be a constant.

Step-by-step explanation:

Note: The given functions is a constant function because variable term is missing.

Consider the given function is

f(x)=-5e^{ax}

where a be a constant.

We need to find the derivative of the function.

Differentiate with respect to x.

f'(x)=\dfrac{d}{dx}(-5e^{ax})

f'(x)=-5\dfrac{d}{dx}(e^{ax})

f'(x)=-5e^{ax}\dfrac{d}{dx}(ax)            [\because \dfrac{d}{dx}(e^x)=e^x]

f'(x)=-5ae^{ax}

f'(x)=a(-5e^{ax})

f'(x)=a f(x)

Therefore, the derivative of the function is f'(x)=-5ae^{ax}=a f(x).

7 0
3 years ago
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