Find the derivative of f (x) = 6x + 7 at x = 9

Determine between which consecutive integers the real zeros of f (x) = x2 - 3x + 1 are located. between - 1&0,0&1 and 2&3 between - 1&0,0&1 and 1&2 between - 28-1,0&1 and 1&2 between - 2&1, 0&1 and 1&2

John, David, and Hank are brothers who's ages add to 114 years. John is 10 years older than half of Hank's age, while Hank is 6 years older than David. What are John, David, and Hanks ages?

I am a odd number less than 100 and a multiple of 15. The sum of my digits is 12. What number am I.

How many solutions does the equation 2+6 (x-4) = 3x-18+3x have?

Are all congruent polygons similar?

For normal distribution with mean = 50 and standard deviation = 10 find x-value for z-score=1.5

At a community college with five hundred students, 150 are English majors and 350 are math majors. If a simple random sample of fifty students was selected to represent the various majors proportionately and twenty English majors were chosen, how

You are skiing down a mountain with a vertical height of 1800 feet. the distance from the top of the mountain to the base is 3600 feet. what is the angle of elevation from the base to the top of the mountain?

Hannah has a goal of running 42 miles this week. By Tuesday she had completed 20% of her goal. How many miles had she run by Tuesday?

2x + 3y is less than or equal to 15