3 years ago

I need help plz help me

Mathematics

2 answers:

Alex Ar [27]3 years ago

8 0

Answer:

Step-by-step explana:2 ( a+ 2b) - a- 2b

=2a + 4b - a - 2b= a + 2b

MissTica3 years ago

5 0

Answer:

a+2b

Step-by-step explanation:

2(a+2b)-a-2b

2a+4b-a-2b

=a+2b

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*Please if anyone understands this help! :) Also if you could show or explain your work It would be very helpful. *

morpeh [17]

Answer:

169.70563

Step-by-step explanation:

If it's pythagorean theoram then i used $c=\sqrt{a^2+b^2}$

a and b would be 120.

doing all that would get you the answer.

if this helped...great.

5 0

3 years ago

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Hiii i have a question on math:)

vlabodo [156]

Answer:

PQR = 150°

Step-by-step explanation:

Hi there !

PQR = PQS + SQR

12x - 6 = 16 + 9x + 17

12x - 9x = 16 + 17 + 6

3x = 39

x = 13

PQR = (12×13 - 6)° = (156 - 6)° = 150°

Good luck !

4 0

3 years ago

Find the value of k if it is known that the line y=kx+2 goes through point: (-7,12)

gavmur [86]

Answer:

-10/7

Step-by-step explanation:

y=kx+2 (-7, 12)

12=k(-7)+2

12=-7k+2

-7k=12-2

-7k=10

k=10/-7

5 0

3 years ago

QUESTION ON PIC TY!!!!!

stepan [7]

You have 180 degrees in a triangle so 180-40-51=89

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3 years ago

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2/21 × -3/13 +-7/9 - 2/21 × 10/13

Viefleur [7K]

Answer:

$\frac{-55}{63}$

Step-by-step explanation:

$=\frac{2}{21}(\frac{-3}{13})-\frac{7}{9}-\frac{2}{21}(\frac{10}{13})$

$=\frac{-2}{91}-\frac{7}{9}-\frac{2}{21}(\frac{10}{13})$

$=\frac{-2}{91} +\frac{7}{9} -\frac{2}{21} (\frac{10}{13})$

$=\frac{-655}{819}-\frac{2}{21} (\frac{10}{13} )$

$=\frac{-655}{819}-\frac{20}{273}$

$=\frac{-55}{63}$

5 0

4 years ago

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