f(x)=5x2-13x+1   f(-1)=   f(2)=

There is an equation x3 + 19x2 + cx + d = 0. There are three positive integer solutions to this equation, x1, x2, and x3. It is known that x1*r=x2 and x2*r=x3. You are asked...

Bini planted A 4 feet tall tree next to 150 feet tall tree. The small tree grows 2 feet a month and the talk tree grows 0.75 feet a month. How many months it takes them to reach the same height?...

Math problem 3x-7=-18. What are the expressions, equation, varibles,constant, terms, factors and coefficient

Tom and Cindy agreed to form a partnership. The partnership agreement requires that Cindy invest ​\$3582 greater than four​-fifths of what Tom is to invest. If the total partnership value is ​\$72,722​...

Lily pads on the MS state lake double everyday.  If the lake is completely covered on day 30, on what day was the pond half full?

When I weighed the chain, its mass was 71.1 grams. I believe the chain is solid metal (not gold plated), but is probably a blend of gold and other metals. I looked up that gold has a density of 19...

Solve. Write the solution set in interval notation. (Enter EMPTY or ∅ for the empty set.) 1/7x < −1 or 2x > 0