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3 years ago

What's The Answer??????????????????

Mathematics

1 answer:

Yuri [45]3 years ago

7 0

$f(x) = \dfrac{x}{2} - 2$

$g(x) = 2x^2 + x - 3$

$(f + g)(x) = \dfrac{x}{2} - 2+ 2x^2 + x - 3$

$(f + g)(x) = 2x^2 + \dfrac{3}{2}x - 5$

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What is the greatest common factor of 88 and a 121

Anton [14]

Answer: 11

Step-by-step explanation: The factors of 88 are 1,2,4,8,11,22,44,88; The factors of 121 are 1,11,121.

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3 years ago

Evaluate the expression \dfrac{x^5}{x^2} x 2 x 5 start fraction, x, start superscript, 5, end superscript, divided by, x, squa

Elza [17]

Answer:

Step-by-step explanation:

Fill in the variable value and do the arithmetic.

$\dfrac{2^5}{2^2}=\dfrac{32}{4}=8$

___

Of course, the fraction can be simplified first:

$\dfrac{x^5}{x^2}=x^{5-2}=x^3\\\\2^3=8$

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3 years ago

An art gallery is increasing the asking price of its paintings by 60%. A painting now costs $400.00. How much was the painting b

Lera25 [3.4K]

The goal here is to find the cost of the painting BEFORE the 60% increase.

To find the cost of the painting, we must take in the information we already have:

Increase percent: 60%
Original price: unknown
Price after increase: $400

$400 is the price of the painting AFTER the increase has been added. So this equals the cost of the painting before the increase, plus the total amount of the increase (which is 60% of the original price).

The total must be (100% + 60% = 160%) 160% of the original painting price.

To find the original price, we must divide the increased price by the new percentage (160%). But how do we get here?

Well, we have 160% and our (fraction) $400/1%. We will have to switch the 160% and the 1%, giving us..

1% $400/160%

We take 400/160, which is 2.5. But this is only 1% of the original price! We want 100%.

So now, we multiply the 2.5 by 100 to get our answer: $250.

I hope this helps! If you have any questions, feel free to ask.

5 0

3 years ago

Read 2 more answers

PLEASE HELP! DUE SOON STEP BY STEP PLEASE PLEASE HELP ASAP

levacccp [35]

Answer:

Step-by-step explanation:

yep your correct :)

8 0

3 years ago

Find the area of a circle givin the diameter of 12. Use 3.14 for pi.

valina [46]

Answer:

113.04 units^2

Step-by-step explanation:

The area of a circle can be found using:

$a=\pi r^{2}$

First, we need to find the radius, since we have the diameter.

Radius

The radius is half the diameter, or

r=d/2

We know the diameter is 12, so we can substitute that in

r=12/2 Divide

r=6

Area

Now we know the radius and can substitute it into the area formula

$a=\pi r^{2}$

$a=\pi 6^2$ Solve the exponent

$a=\pi 36$

Substitute 3.14 in for pi

a=3.14*36 Multiply

a=113.04

We aren't given a specific unit, so we can say the area is

113.04 units^2

8 0

3 years ago