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Dima020 [189]
3 years ago
12

Hi can someone help me with this question?.. I don't understand it what so ever

Mathematics
2 answers:
lara [203]3 years ago
5 0

Answer:

The top and the bottom are difference of squares and the middle ones are not difference of square.

Step-by-step explanation:

How you know is based off the numbers and the equation signs.

See the one at the bottom how 16 can be divided into two equal parts by 4. Unlike 5 where you can't do that. Same with the top one. Even though there is nothing in front of the y it is one and 1*1 is still one. Also if it has a minus sign in the middle as well.

Hope this helps.

aniked [119]3 years ago
3 0

so a normal diff of squares is (a^2-b^2)

factored it is

(a+b)(a-b)

and we know when exponents are multiplied together they’re added, so if you know that the b value is a square of a number, then look at the exponent

look at 1 y^4 is a square since y^2 x y^2 = y^4

and 144 is the square of 12

both terms can be square rooted and there is a - sign, meaning a diff of squares:

(y^2-12)(y^2+12)

the second one is the only one that is not a difference of squares

sorry i know i’m bad at explaining things

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Zielflug [23.3K]
First solve for the other angles.
You know one angle is 15º.
The one across from it is also 15º since it is a vertical angle to the known 15º angle.
Both of those together gets 30º.
The whole thing is 360º, so just subtract 30 from 360 and divide.
360 - 30 = 330
Do the same for the 15x angle.
The one under/across to it is a vertical angle so is also 15xº.
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3 years ago
H(4 1/2, -3 1/4) x (3 3/4, -1 3/4) what the midpoint of hx
shtirl [24]

Answer:

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Step-by-step explanation:

To find the midpoint, the formula is (x1-x2)/2 and (y1-y2)/2. So, in this case, our x1 is 4 1/2 and our x2 is -3 1/4. Subtract x2 from x1 and you will get 7 3/4. Then, divide by 2 to get 3 7/8. This is our x-coordinate.

Our y1 is 3 3/4 and our y2 is -1 3/4. Subtract y2 from y1 to get 5 1/2. Then divide by two to get 2 3/4. This is our y-coordinate.

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3 years ago
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babymother [125]

Answer:

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Step-by-step explanation:

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5 0
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