Question

Please check my work! "Find the length of side a if angle A = 62 degrees, b = 15, and c = 21." My answer was 19.24, is that right?

Answer 1

Is this a right triangle
Because if it isnt I dont think we have enough info to solve it

Answer 2

whoops yeah its a right triangle

Answer 3

Equation H: y = −x + 2
Equation J: y = 3x − 4

Which of the following steps can be used to find the solution to the set of equations?

Answer 4

\[\cos 62=\frac{ 15^2+21^2-a^2 }{ 2*15*21 }=\frac{ 225+441-a^2 }{ 630 }=\frac{ 666-a^2 }{ 630 }\]

Answer 5

MEDAL AND FAN!!!!!!!111 A set of equations is given below: Equation H: y = −x + 2 Equation J: y = 3x − 4 Which of the following steps can be used to find the solution to the set of equations?

−x = 3x − 4

−x +2 = 3x

−x + 2 = 3x − 4

−x + 1 = 3x + 2

@Brill WHICH OPTION IS IT :( is it D?

Answer 6

its about 18.5

Answer 7

oh, i was off by a little

Answer 8

that is what i would do any way :)

Answer 9

\[0.47=\frac{ 666-a^2 }{ 630 },0.47*630=666-a^2\]
a^2=666-296=370
a=19.24 approx.

Answer 10

then i was right?

Answer 11

oh gosh i dont know who to believe

Answer 12

correct.

Answer 13

@surjithayer could you check a few more? I'll post them seperately, of course.

Answer 14

can you show whole work?

Answer 15

i dont have the work for them anymore, only the answers

Answer 16

because if I solve it takes too much time.
ok,if possible i will check,you post.

Answer 17

thank you !