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Questions (12)

The volume of a spherical balloon of radius r cm is V cm3, where .Find dv/dr My answer: 4πr^2 The balloon leaks at 5cm^3 per
1. 1 answer
2. 938 views
If the equation 3x^4+2x^3-6x^2-6x+p=0 has two equal roots, find the possible values of p.x-1 is a factor so after replacing x=1
1. 1 answer
2. 670 views
If f(x) = (x+1)/(x-1), what is:i) lim f(x) as x approaches 1 ii) lim f(x) as x approaches ∞ My answer: i) lim f(x) as x
1. 1 answer
2. 612 views
The charges for hiring a car from three different companies, based on the number of days for which a car is hired and/or the
1. 1 answer
2. 1,889 views
If a projectile is fixed at an angle α = 60° and initial velocity, Vi =100 ft/s. Find its position at the end of 25 seconds.x
1. 1 answer
2. 351 views
Show that sin (α-30°)+cos (α+30°) = (√3 - √1)/√2 × sin (α+45°)
1. 1 answer
2. 425 views
Solve:Log5(x-2) + log8(x-4)= log6(x-1)
1. 1 answer
2. 956 views
1. Solve each inequality and express the solution set in interval notation.a. 3 < |(x-3)/2| < 5 b. 5 ≥ |(x+2)/3| > 1 2. 4 <
1. 1 answer
2. 759 views
Solve each inequality and express the solution set in interval notation.a. 3 < |(x-3)/2| < 5 b. 5 ≥ |(x+2)/3| > 1 ans.:
1. 0 answers
2. 452 views
Convert each statement below into symbolic form and generate its truth table:If the New York Yankees win the world series or the
1. 2 answers
2. 825 views
Let A = {x: x 3x=6}. Does A?My answer: A ≠ 2 because x = 2 and x is an element of set A. Thus, A = {2}, but A itself is not
1. 4 answers
2. 1,520 views
Let A = {2,{4,5},4}. Which of the following statements are incorrect and why? Give an explanation for your answer to each part.i
1. 2 answers
2. 447 views