7,200 Answered Questions for the topic Math Help
Calculus question
You decide to warm your house by lighting your wood fire place. The smoke is coming out the chimney in the shape of an inverted right circular cone, the diameter of which is equal to its height. If...
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Math Help
08/14/17
is the statement sometimes always or never true
2x^2+10<-15
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calculus question
A fish is being reeled in at a rate of 30cm/s from a bridge 4m above water. At what rate is the angle (in rad/s) between the line and the water changing when there is 8m of line out?
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calculus question
A construction worker pulls a 5m plank up the side of a building under construction by means of a rope tied to the end of the plank. The opposite end of the plank is being dragged along the ground....
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08/14/17
Math Question
Ron’s class donated d dollars to a local charity. Danny’s class donated 21% more than Ron’s class. Which expression shows the amount Danny’s class donated in terms of the amount donated by Ron’s...
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Calculus question
A pebble is dropped into a still pond, causing ripples in the form of concentric circles. The radius r of the outer circle is increasing at a rate of 25cm/s. When the radius is 100cm, at what rate...
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Math Help
08/13/17
Find the probability of the following ( enter probability as a fraction)
Assume that a single card is drawn from a well-shuffled deck of 52 cards. One of the face (picture) cards (jack, queen, or king is drawn.
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what is the next number in this pattern 3,0, -3, 0, 3, 0...
what is the next number in this pattern 3,0, -3, 0, 3, 0...
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08/13/17
Calculus question
A solid is formed by attaching a hemisphere to each end of a cylinder. If the total volume is to be 120cm3, find the radius (in cm) of the cylinder that produces the minimum surface area. Express...
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Calculus question
If the price of each ticket to a concert is $16, a total of 4000 tickets will be sold. For each $1 increase in price, ticket sales will decrease by 100. What should the ticket price be set at in...
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Calculus question
The height h of a right triangle is increasing at a rate of 1 unit/s. Find the rate at which theta (in rad/s) is changing when h =8.
HelP!?
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Math Help
08/11/17
What is the GCF of 8 and 100?
The GCF of 8 and 100.
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Math Help
08/11/17
What is 18 5/8% of 60?
I need help in calculating 18 5/8% of 60!
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Math Help
08/11/17
need help with this problem
The sum of the page numbers on the facing pages of a book is 89. What are the page numbers? The number on the left page is__ and the number on the right page is __
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Math Help
08/10/17
An ordinary deck of playing cards contains 52 cards, 26 red and 26 black. If a card is dealt to each of 2 players,.
Find in how many different ways this can be done if the following occur.
a. both cards are red. _____ ways
b. both cards are black _____ways
c. one card is black and the other is red....
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calculus question
You hit a golfball vertically upward with your pitching wedge. The position function of the ball is s(t) = -3t^2+30t where the origin is at ground level and the positive direction is vertically...
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Math Help
08/10/17
Four times the sum of a number and 2/3 is 16/3 . Find the number. Express your answer as a fraction in simplest form.
please help with ten marks question!!!
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Math Help Math Problem
08/09/17
how do I find the missing length of a right angle triangle
the lines that form the right angle in the triangle are 20 and 15 long what is the missing length
I know it is hard to understand but if you understand please help quickly
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calculus question
Two isolated farms are situated 12km apart on a straight country road that runs parallel to the main highway 20km away. The power company decides to run a wire from the highway to the junction box,...
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Math Help
08/09/17
The formula for the circumference or a circle is C=2πr. Solve for π.
Plz help me i cant seem to find the answer
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Calculus question
Find 2 positive numbers whose sum is 18 and the product of the first number and the square of the other is a maximum.
Help!?
Math Help
08/08/17
sally has $50. She spends c dollars on some clothes and then 8 dollars on lunch. write an expression to show how much money Sally has left.
Pls help me
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Math Help
08/08/17
If an oil thankholds 640 gallons, when the tank is 3/8 full how many gallons of oil are in the tank
need help on this one im not good at math at all any help will be appreciated
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Math Help
08/07/17
Given the function f(x) = 3x, find the value of f−1(27).
f−1(27) = 1 f−1(27) = 3 f−1(27) = 9 f−1(27) = 81
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Math Help
08/07/17
On a number line, AB=BC=CD. If AD=12, then what is the length of AB?
The number line from mathematics in the GED.
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