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Lena [83]
4 years ago
10

Which pair of angles must be supplementary?

Mathematics
2 answers:
Anton [14]4 years ago
7 0

Answer:

1 and 6

Step-by-step explanation:

mr Goodwill [35]4 years ago
6 0

Answer:

I think 2 and 5

Step-by-step explanation:

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If $x$, $y$, and $z$ are positive integers such that $6xyz+30xy+21xz+2yz+105x+10y+7z=812$, find $x+y+z$.
harina [27]

Answer:

10

Step-by-step explanation:

When we simplify we get $$z(6xy+21x+2y+7)+30xy+105x+10y=812.$$

Then we continue to factor to get: (z+5)(6xy+21x+2y+7)&=847.

We then see that we can factor (6xy+21x+2y+7) into (z+5)(3x+1)(2y+7)&=847.

we then do the prime factorization of 847, which i think is,  7*11*11. we have to find the numbers that multiply to 847 and then plug them into z+5, 3x=1,2y+7.

It has to be a positive, non-negative integer, right?

We also see that 3x+1=11 so we see that x=10/3 (which wont work).

So 3x+1=7, so x=2.

So 11 has to be in another term. It has to be in 2y+7=11 so y=2

for the last term we get z+5=11 so z=6

2+2+6=10

Hope this helps and if you want please consider giving me brainliest. :)

8 0
4 years ago
9+5r-9r simplifying variables
sashaice [31]

Hey there!

In order for you to solve for this. You have to COMBINE YOUR LIKE TERMS

(9 )+ (5r - 9r)

(5r - 9r) = -4r

(+ 9) = +9

Answer: -4r + 9

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

5 0
3 years ago
Geometry, please answer question ASAP
Rus_ich [418]

Answer:

66

Step-by-step explanation:

since BD and BC are congruent, angle C and angle D are equal. this means 6x-9=3x+24. If you solve this equation you get x=11. If you plug it into either 6x-9 or 3x+24 you get 57. 180-(57+57)=66

4 0
3 years ago
Leo had a $30 gift card to use at a coffee shop. He used the entire balance to buy regular-sized coffees, which cost $2, and lar
garri49 [273]

Answer:

Leo bought 4 large coffee cups which total 12 dollars. and the rest were 9 regular sizes which equals to 13 coffees in total.

Step-by-step explanation:

4 0
3 years ago
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Help me with this math question
katrin [286]

Answer:

uhhhhhhhhhhh 4 answer

Step-by-step explanation:

7 0
3 years ago
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