05/10/17
how do I solve this word problem?
A firefighter is on the fifth floor of an office building. She needs to throw a rope into the window above her on the seventh floor. The function h = -16r2 + 36t models how high above her she is...
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05/09/17
A multi-plate capacitor has n no. of plates. Find the no. of capacitors in it.
my doubt is whether the answer is n/2 or n-1.
05/09/17
A charge q is placed at the centre of the line joining two equal charges Q. What will be the value of q for the system of charges to be in equilibrium?
The value of q must be in terms of Q.
05/09/17
Two charged particles are placed ai a distance of 1cm apart. Find the minimum possible magnitude of the electrostatic force acting on each charge.
wanted the answer for the above question quickly.
05/09/17
The exponential of a city is 10 million, with exponential growth rate 5%.
In how many years will the population triple the size?
05/09/17
What is the maximum height that the flare reaches
The height above the ground of a launched object is a quadratic function of the time that it is in the air. Suppose that a flare is launched from a cliff 64 ft above sea level. If 3 sec after being...
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05/09/17
PLEASE HELP ME answer this
If the voltage V in an electric circuit is held constant, the current I is inversely proportional to the resistance R. If the current is 40 amperes when the resistance is 285 ohms, find the current...
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05/09/17
PLEASE HELP ME answer this
The amount P of pollution varies directly with the population N of people. City A has a population of 494,000 and produces 260,000 tons of pollutants. Find how many tons of pollution we should...
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05/09/17
word problem
You drop a pencil out a window that is 20 ft above the ground. Use the formula V2 = 64s, where V is the distance fallen, to calculate the speed the pencil is traveling when it hits the ground.
05/09/17
express as a difference of logarithms log m/n
log m/n.... m and n are in fraction form right next to Log
05/08/17
Tommy walked 4 miles east to Timmy's house. Then he walked 3 miles south. How far do Tommy and Timmy live from each other?
It needs to tell me the shortest way to each others house from where they are now using the Pythagorean Theorem.
05/08/17
1st grade word problem.
Keith has more than 70 cents but less than 90 cents. Hey buys one of the food items (orange for 30 cents, pear for 43 cents or bananas for 60 cents). He has 12 cents left. Which food does he buy?
05/08/17
Jolanda started an art project at 9am and finished at 9:50am. The _____ for the project was 50 minutes. Vocab, whats the blank?
3rd grade math question. Vocabulary. Pearson topic 16 lesson 16-5
05/08/17
Probability of a Campsite?
A campsite is in the shape of a rectangle. The green region represents campsites with shade. The yellow represents campsites without shade. Your campsite is randomly assigned. What is the...
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05/08/17
rocket launched from 20 feet above ground velocity of 128 feet per. sec equation h= -16t+ 128t +20
use equation to find exact time rocket is at 150 feet above the ground
And use a graph to estimate when rocket is at 150 feet
05/08/17
Find the cube roots of 27i, and sketch these roots in the complex plane.
I'm having a really hard time understanding this! Please help!
05/08/17
If A is a matrix of order 1 x 3, B transpose is a matrix of order 1 x 3 , then it is possible to carry out the operation?
The choices are ( A + B , B transpose + A transpose , AB(transpose) , AB. I know that A + B and B transpose + A transpose is wrong. My teacher said that AB is the correct answer but why not also...
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05/08/17
Discrete math: proving by contradiction. . .
Prove by contradiction: If an integer n has the form 3K+1, then it does not have the form 9L+5.
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