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Elodia [21]
3 years ago
7

If x=1 and y =-2 what's 3(2-x)+4(3-y) explanation please​

Mathematics
1 answer:
Fittoniya [83]3 years ago
5 0

Answer:

23

Step-by-step explanation:

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Factorise the following:<br> A. 4xy-16<br> B. xy+2xy-x<br> C. 2x²-18x+12<br> D. 5xy+20x-9y-36
Burka [1]
<h3><em><u>A. 4xy-16</u></em></h3>

<em><u>=4(xy−4)</u></em>

<h3 /><h3><em><u>B. xy+2xy-x</u></em></h3>

<em><u>3xy−x</u></em>

<em><u>=x(3y−1)</u></em>

<h3><em><u>C. 2x²-18x+12</u></em></h3>

<em><u>2x²</u></em><em><u>−18x+12</u></em>

<em><u>=2(</u></em><em><u>x²</u></em><em><u>−9x+6)</u></em>

<h3><em><u>D. 5xy+20x-9y-36</u></em></h3>

<em><u>5xy+20x−9y−36</u></em>

<em><u>=(y+4)(5x−9)</u></em>

6 0
2 years ago
- 2x – 5 &lt; 12<br> Yo help
Elina [12.6K]

Answer:

x > -17/2

Step-by-step explanation:

Step 1: Write inequality

-2x - 5 < 12

Step 2: Solve for <em>x</em>

<u>Add 5 to both sides:</u> -2x < 17

<u>Divide both sides by -2:</u> x > -17/2

Here, we can see that any number greater than -17/2 would work, so x could equal 01234718905731857013570 if we wanted it to, as long as it is greater than -8.5.

5 0
3 years ago
Which equation and solution can be used to solve this problem? Twenty-two less than a number is twenty-four. q + 22 = 24: Subtra
kaheart [24]

Answer:

q-22=24. Hope this helps.

Step-by-step explanation:

22 less than a number, meaning 22 is subtracted FROM an unknown variable. Going by this you would add 22 on both sides, giving you an answer of 46.

3 0
3 years ago
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write the first four terms of the sequence defined by the given rule f (1) = 3, f(n) = [ f(n - 1)] ^2
AleksandrR [38]

Answer:

3, 9, 81, 6561

Step-by-step explanation:

previous term × itself

8 0
3 years ago
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A new basketball cost $25.90 and is half-price today only. What is the price you will pay, exluding tax? $
e-lub [12.9K]

Answer:

$12.95

Step-by-step explanation:

25.9 divided by 2 = 12 .95

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2 years ago
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