3 years ago

Solve for an angle in right triangles

Mathematics

1 answer:

Dvinal [7]3 years ago

5 0

Answer:

41.81

Step-by-step explanation:

you use (sin)

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Read 2 more answers

Math question.

Oduvanchick [21]

Answer:

C) 25%

Step-by-step explanation:

let salt be 's'

let water be 'w'

$\frac{s+1}{w+s+1} = 33\frac{1}{3} \\\\\frac{s+1}{w+s+1} = \frac{1}{3} \\\\\frac{w + s + 1}{3} = s+1\\\\3s +3 = w+s+1\\w = 2s+2\\\\\frac{s+1}{w+1+s+1} = \frac{3}{10} \\\\\frac{3(w+s+2)}{10} = s+1\\\\3w+3s+6 = 10s+10\\**w = 2s+2\\3(2s+2) + 3s + 6 = 10s+10\\\\6s+6+3s+6 = 10s+10\\9s+12 = 10s+10\\-s = -2\\s = 2\\\\w= 2s+2\\w=2*2+2\\w = 6\\\\\frac{2}{2+6} = \frac{2}{8} = 0.25$

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2 years ago

HELP ME ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing. Check ALL that apply

sammy [17]

Answer:

C. 65

Step-by-step explanation:

Compare to the standard form ...

ax² +bx +c

to find the values of a, b, c. They are ...

a=2, b=3, c=-7

The discriminant is ...

d = b² -4ac

d = (3)² -4(2)(-7) = 9 +56

d = 65 . . . . . . matches choice C

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3 years ago