∠a and ∠b are complementary angles of right triangle abc, cos a = 0.83, and cos b = 0.55. what is sin a + sin b?

Step-by-step explanation:

Let

A, B and the measures of the angles in a right triangle

we know that

------> by complementary angles

so

In this problem we have

therefore

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.