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Crazy boy [7]
3 years ago
13

Which expressions represent a difference of squares?

Mathematics
1 answer:
andrew-mc [135]3 years ago
4 0

Answer:

25 {x}^{2}  - 36\\ 1-16x^2\\4x^2 - 12x + 9

Step-by-step explanation:

25 {x}^{2}  - 36 \\  = ( {5x})^{2}  - ( {6})^{2}  \\

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Please its for a test
kozerog [31]

Answer:

1) I think the answer is A

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3) This number is irrational because irrational numbers are all the real numbers that are not rational.

4) 6/25

5) 0.875 since I can't show work, you divide 7 by 8

6) I don't know the answer, so maybe D and B ?

7) point A

8) 8.3 inches

9) I think it is the = I am not sure

10)  Irrational because it has no pattern

Step-by-step explanation:

I really hope this helps and good luck. I tried my Best!

7 0
3 years ago
If O is the center of the circle and mZABC = 30°, what is the measure of BDC? D B A C mZBDC = [?] degrees​
swat32

Answer:

60

Step-by-step explanation:

ABC is OBC:30

180-90-30=60

3 0
3 years ago
Read 2 more answers
1. Can cross multiplication be used to solve this problem? Why or why not?<br><br><br> HELP
garri49 [273]

Answer:

Step-by-step explanation:

Cross multiplication can be used but not in the beginning. First x should be isolated.

3 +\frac{5}{x}=\frac{7}{x}\\\\

Now subtract \frac{5}{x} from both sides

3 = \frac{7}{x}-\frac{5}{x}\\\\3=\frac{7-5}{x}\\\\3=\frac{2}{x}

In this stage, cross multiplication can be used.

\frac{3}{1}=\frac{2}{x}\\\\3*x=2*1\\\\x = \frac{2}{3}

6 0
3 years ago
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Step-by-step explanation:

I think it's 3.95!

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6 0
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The Pyramid of Khafre measured 143.5
nadezda [96]

Answer:

what are the answers that are given

Step-by-step explanation:

6 0
4 years ago
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