Answer:
So for the first one the first ting u have to do is FLIP the equation so---> X-12=y
Then you have to add 12 to BOTH sides----> x-12+12=y+12
<u><em>So your answer for X ----> x=y+12</em></u>
<u><em>For Y on the first equation it is--->y=x-12</em></u> (Just flipped and the sign changed)
For the second equation we are gonna solve for Y first.
The first thing u want to do is divide both sides by -3 so it will look like this
-3y/-3 = 2x/+36/-3
<u><em>So Y will equal-----> -2/3x- 12</em></u>
Now we are going to do the X part
So fist FLIP the equation----> 2x+36= -3y
The add -36 to both sides-----> 2x+36+-36=-3y+-36
Last step you have to divide both sides by 2
So that would be----> 2x/2= -3y-3
<u><em>Your final result will be----> x=-3/2y-18</em></u>
I hope this helped you out (:::::::
Answer:
Step-by-step explanation:
<u>Given </u><u>:</u><u>-</u><u> </u>
And we need to find out the function from the given options which is equivalent to the given function . For that firstly simplify the whole square term , that is ,
<u>Using </u><u>Identity</u><u> </u><u>:</u><u>-</u>
<u>Whole</u><u> </u><u>square</u><u> </u><u>term </u><u>:</u><u>-</u><u> </u>
Now multiply the constant term outside the bracket to it . As ,
Add the constant terms .
<u>H</u><u>ence </u><u>the </u><u>second</u><u> </u><u>option</u><u> is</u><u> </u><u>correct</u><u> </u><u>.</u>
X + y = 3500 -------------- (1)
x - y = 2342 --------------- (2)
(1) + (2):
2x = 5842
x = 2921 -------------- Sub into (1)
x+ y = 3500
2921 + y = 3500
y = 3500 - 2921
y = 579
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Answer: x = 2921, y = 579
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Answer: a+b = -2
B. -2
Because if a = 1 and b = -3 then
(2x+a)(2x+b)=4x^2-4x+ab
Plug in a = 1 and b = -3 into (2x+a)(2x+b) then solve
(2x+a)(2x+b)
= (2x + 1)(2x - 3)
= 4x^2 + 2x - 6x - 3
= 4x^2 - 4x - 3 (so ab = - 3)
This problem can be solve by using
ration and proportion, since you want to enlarge the picture by not distorting
the image, the new dimensions should be in proportion with the old one.
Let x be length of the image
(5/40 = (x/5)
X = 5(5/4)
<span>X = 6.25 in</span>