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Darya [45]
3 years ago
6

I need help on this question

Mathematics
1 answer:
Pavel [41]3 years ago
7 0
I think the answer is D sorry if it’s wrong and good luck
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The least common denominator of two fractions is 20. If you subtract the two denominations, you get 1. What are the denominators
LekaFEV [45]
Steps
find the Least Common Multiple of the denominators (which is called the Least Common Denominator).

Change each fraction (using equivalent fractions) to make their denominators the same as the least common denominator.

Then add (or subtract) the fractions, as we wish!
your denominators stay the same so its 20

6 0
3 years ago
((-2^2)(-1^-3))•((-2^-3)(-1^5))^-2
Vitek1552 [10]

Answer:

  256

Step-by-step explanation:

A calculator works well for this.

_____

None of the minus signs are subject to the exponents (because they are not in parentheses, as (-1)^5, for example. Since there are an even number of them in the product, their product is +1 and they can be ignored.

1 to any power is still 1, so the factors (1^n) can be ignored.

After you ignore all of the things that can be ignored, your problem simplifies to ...

  (2^2)(2^-3)^-2

The rules of exponents applicable to this are ...

  (a^b)^c = a^(b·c)

  (a^b)(a^c) = a^(b+c)

Then your product simplifies to ...

  (2^2)(2^((-3)(-2)) = (2^2)(2^6)

  = 2^(2+6)

  = 2^8 = 256

3 0
3 years ago
Write the standard form of the line that contains a slope of -1/2 and y-intercept of 1. Include your work in your final answer.
NemiM [27]
The slope intercept form would be y= -1/2x + 1 and to get it into standard form all you have to do is move the -1/2 x to the other side, making it 1/2x + y = 1
5 0
3 years ago
Given the system of equations, what is the solution?<br><br> 2x + y = 7<br> 2x - 3y = -1
eduard

Answer: Point Form - (5/2, 2) Equation Form - 5/2, y = 2

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Aaron selected items totaling 48.75 at the farmerś market. he gave the farmer $60.00. She incorrectly gave him $12.25 in change.
Stolb23 [73]

Answer:

$11.25

Step-by-step explanation:

You give the farmer $60.00 and you subtract $48.75 = $11.25

Therefore the farmer gave you $1.00 more.

7 0
2 years ago
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