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EleoNora [17]
3 years ago
8

-3x-y=9

Mathematics
1 answer:
Lina20 [59]3 years ago
4 0

Answer:

D: no solution

...because none of the answers work for both of the equations when you plug in the x and y values

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Hi it is 57  is a becase use a protractor
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the ratio of squares to shapes is 2:5

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Divide and Round your answer to the nearest hundredth: 32.503/4.9
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twice the difference between a number and 10 is equal to 6 times the number plus 14. what is the number?
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I need help with these questions
inysia [295]

Answer:

28. m<A=20°, m<B=70°

32. m<A=103°, m<B=77°

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complementary angle=a+b=90°

supplementary angle=a+b=180°

28. A+B=90°

      5x+17x+2=90°

      22x+2=90°

      22x=90-2

      22x=88

        22x/22=88/22

      x=88/22=<u>4</u>

m<A=5x=5*4=<u>20°</u>

m<B=17x+2=17*4+2=68+2=<u>70°</u>

         <u>Check</u>

A+B=90°

20+70=90°

<u>90°=90°</u>

32. A+B=180°

     x+11+x-15=180°

     2x-4=180°

     2x=180+4

     2x=184

     2x/2=184/2

     x=184/2

     x=<u>92</u>

m<A=x+11=92+11=<u>103°</u>

m<B=x-15=92-15=<u>77°</u>

     <u>Check</u>

A+B=180°

103+77=180°

<u>180°=180°</u>

6 0
3 years ago
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