Solve the triangle. a =52° , b = 10, c=7

Step-by-step explanation:

Use the Law of Cosines:

a² = b² + c² - 2ab·cos A

Substituting the given values, we obtain:

a² = (10)² + (7)² - 2(10)(7)·cos 52°

    = 100 + 49 - 140·0.6157

     =      149 - 86.1926

     =    62.81

Taking the square root of both sides yields:

a = 7.925, or (to the nearest degree) 8

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be