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enyata [817]
3 years ago
15

2X(X+y) + 2y(3X-y) Please help me

Mathematics
1 answer:
tankabanditka [31]3 years ago
7 0

Answer:

2x^2 + 8xy - 2y^2

Step-by-step explanation:

2X(X+y) + 2y(3X-y)

2x^2 + 2xy + 6yx - 2y^2

2x^2 + 8xy - 2y^2

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The lock of a safe has a wheel of 8 letters. A unique combination of 3 letters opens the safe. what is the probability that a bu
LiRa [457]

Answer:

1/512

Step-by-step explanation:

The robber has a 1/8 probability of getting each letter right. There are three letters, so you would multiply 1/8x1/8x1/8.

5 0
4 years ago
How do you evaluate 3ab
dimaraw [331]
Lets say a=2 and b=5  you now plug in you numbers to get 3x2x5 we know 3x2=6 so now take 6 and multiply it by 5 so 6x5=30  you can also set this equal to 0 3ab=0 then divide by either a or b ill show you both if you divide by a you are left with 3b=a if you divide by b than you get 3a=b
5 0
3 years ago
PLEASE HELP ON BOTH OF THEM ITS DUE TODAY!!!
S_A_V [24]

Answer:

For the first one, the answer is 7.5, and for the second one, it's 1.5

Step-by-step explanation:

2 1/2 ÷ 1/3

5/2 ÷ 1/3

5/2 x 3/1

15/2 or 7.5

1/2 ÷ 1/3

1/2 x 3/1

3/2 or 1.5

HOPE THIS HELPS! ENJOY THE REST OF YOUR DAY!

7 0
3 years ago
.1 answer, 1 kiss from crush Which of this these does NOT satisfy the equation below -2x-6 less or equal to 1. A. -4 B. -3 C. -2
Semenov [28]
-2x-6<=1

insert values of x as -1, -2, -3, -4

-4 does not work

I don't have a crush so, I'll just take the 5 points :)
3 0
4 years ago
What is the circumference of a circle with a diameter of 45 centimeters
Free_Kalibri [48]
Keeping in mind the formula for circumference is Pi x Diameter, you simply multiply 45 by pi.
This gives you 141.3716694
4 0
4 years ago
Read 2 more answers
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