Perform the indicated operation.

17 + (-5)

Prove that: (tan20°) ^2 + (tan40°^) 2 + (tan80°) ^2=33

Paint is red : blue in a ratio 2 : 4 if 5 litres is used how much blue

What is the thousands place in the number 74,638,249.

Factor the quadratic equation x2 - 19x + 84 = 0 and find the zeros of the function.

Shade in some or all of the grids to show that 2 ones is the same as 20 tenths

Find the next two terms in the sequence. 9.8, 0.7, - 8.4, - 17.5, ... -35, - 70 -26.6, - 35.7 26.6, 35.7 18.9, 28 Find the exact value of the eighth term of the geometric sequence: 648, 216, 72, 24 ... .

Write and answer the hidden question or questions in each problem and then solve the problem. Write your answer in a complete sentence. When Mrs. Johnson saw the sale, she decided to get clothes for each child in her family.

Three different whole numbers add up to 31. The first number is multiple of 3 The second number is multiple of 4 The third number is multiple of 5. What could the numbers be?

Write the mixed number that is equivalent to 16/3

Is y=1/2*-1/2 non proportinal