If cos ∅ lies in the quadrant IV, what can be the value of cos ∅?

a) - √41/5

b) √41/5

c) - 3/5

d) 3/5

What are the intercepts of - 4x 6y-5z=60

Two planes left the same airport traveling in opposite directions. The first plane left the airport at 2 P. M. traveling at an average rate of 500 mph. The second plane left the airport at 4 P. M. traveling at an average rate of 550 mph.

2 2/5 divided by (-1/4) ?

At the sea park, one section in the stadium has 9 rows with 18 seats in each row. in the centre of each of the first 6 rows, 8 seats are in the splash zone. how many seats are not in the splash zone?

Solve the following equation 2x-7/4=x+3/3

How many strings can be formed using the letters a, b, c, d, e, f, with each letter used once, that that start with the letter f?

A type of green paint is made by mixing 2 cups of yellow with 3.5 cups of blue. Find a mixture that will make the different shade of green that is More yellow

Simplify by using order of operations: 4 + (9∙2) : (4 - 1) - 4

Which states the following expression: (2 x 3) + (2 x 9) A) the product of two and three and nine B) the sum of two and three and two and nine C) the total of two times three and two times nine D) the product of two times three and two times nine

Five times a number added to - 4, subtracted from twice the sum of eight times the number and 7