a line passing through (a, 4) & (-1, 6) is perpendicular to a line through (1, -5) & (2, a). What is the value of a?

Which description is represented by a discrete graph? kiley bought a platter for $19 and several matching bowls that were $8 each. what is the total cost before tax? the temperature at 9 a. m. was 83° f and is heating up at an average rate of 6°f per hour. what is the temperature x hours later? juan ate an egg with 78 calories and some cereal with 110 calories per serving for breakfast. what is the total amount of calories he consumed? a bottle contained 2,000 ml of liquid and is being poured out at an average rate of 300 ml per second. how much liquid is left in the bottle after x seconds?

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

How do you write 600 as a product of its prime factors (index! )