CẦN GẤP 1) -xy(x+3y-2)

3) (x-y)(x^2+xy+y^2)+(2x-y)(x-y)

2) 4xy(x-1/2xy+1)

4) 2x(x+y)-(4x+2y)(3x-y)

5) 4x(x+2)(y+3-x)

6) (4-xy)(5x-3y)-(x+y)(x-3y)

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

the above table 1 will calculate the population size (n) after a certain length of time (t). all you need to do is plug in the initial population number (no), the growth rate (r) and the length of time (t). the constant (e) is already entered into the equation. it stands for the base of the natural logarithms (approximately 2.71828). growth rate (r) and time (t) must be expressed in the same unit of time, such as years, days, hours or minutes. for humans, population growth rate is based on one year. if a population of people grew from 1000 to 1040 in one year, then the percent increase or annual growth rate is 40/1000 x 100 = 4 percent.

step-by-step explanation: