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Agata [3.3K]
3 years ago
10

NEED HELP ASAP. By what percent will a fraction change if its numerator is decreased by 30% and its denominator is decreased by

20%?
Mathematics
1 answer:
joja [24]3 years ago
5 0

Answer:

0.7x/0.8y = x/y * 0.7/0.8 = x/y * 0.875

So the fraction is reduced by 12.5%

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A segment in the complex plane has a midpoint at 7 – 2i. If the segment has an endpoint at 11 – 3i, what is the other endpoint?
Gnoma [55]

Answer:

3 – i hope i helped                       :)))))

Step-by-step explanation:


3 0
3 years ago
What is the product of 2X plus 3 and 4X squared minus 5X plus 6
Tju [1.3M]
The product of something means multiplying the terms together.

(2x+3) (4x^2-5x+6)

Secondly you need to distribute the terms to each other (Think of problems like FOIL)

2x * 4x^2 + 2x(-5x) + 2x * 6 + 3 * 4x^2 + 3(-5x) + 3 * 6

Then you must take into account that some of the numbers are negative. (minus-plus rules!)

2x * 4x^2 - 2x * 5x + 2x * 6 + 3 * 4x^2 - 3 * 5x + 3 * 6

Now is the tricky part of simplifying everything. 

2x * 4x^2 = 8x^3 

2x * 5x = 10x^2

2x * 6 = 12x

3 * 4x^2 = 12x^2

3 * 5x = 15x

3 * 6 = 18

8x^3 - 10x^2 + 12x + 12x^2 - 15x + 18

Then you group like terms.

8x^3 - 10x^2 + 12x^2 - 3x + 18

8x^2 + 2x^2 - 3x + 18

The trickiest part of this is distributing all of the terms within the parentheses, once you've done that, it's smooth sailing!


5 0
3 years ago
Solve for x. Round your answer to 2 decimal places.<br> A. 8<br> B. 13.86<br> C. 18.48<br> D. 32
weqwewe [10]

Answer:

D) 32

Step-by-step explanation:

sin∠30=16/x first calculate sin∠30

1/2=16/x next cross multiply

x=32

Have a good day :)

3 0
2 years ago
Solve <br> 5x+y=-17 8x-3y=-18
Olenka [21]

Answer:

x = -3

y = -2

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
2(x + 8) = x + 20 help meeeeeeee !!!!! i <br> need help
Ivenika [448]

Answer: x=4

Step-by-step explanation:

firstly you solve the barracks first by multipy 2 into ( x+8) after that you collect like terms on one side of the equation or make x become the subject of the equation and solve for x

7 0
2 years ago
Read 2 more answers
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