10/25/17

Approximately how long will it take light to travel to 1.7 AU in minutes? Use 3 × 108 m/s for the speed of light.
please explain how to get the answer  
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10/25/17

The speed limit on a high way is 95 𝑘𝑚/ℎ𝑟 what would this speed be in 𝑚/𝑠 ? (HINT: show conversion for hours to minutes and minutes to seconds)
show all work and use the correct numbers of significant figures
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10/25/17

automobile starts at rest and speeds up at 4.5 m/s^2 after the traffic light turns green. How far will it have gone when it is traveling 30m/s ?
I need help answering this question please.
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10/25/17

Applications of quadratics. Rock
A boy threw a rock straight up from my Clift that was 24 feet above the water. If the height of the rock, h, in feet, after 1 seconds is given by the equation h= -16t + 20t + 24, how long will it... more
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10/25/17

should we count only longer trains length.. for this pls explain..
Train A, 600 mts long is running at 80 kmph will take how much time to cross a man sitting in another train which is 400 mtres long, running at 64 kmph in the opposite direction?
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10/25/17

In the diagram PQRS is a square. P is the point (0,7) Q is the point (2,1) and R is the point (8,3). Find the coordinates of S. kindly someone explain
1.find coordinate of s find equation of pq 2.calculate area of square  
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10/24/17

Brian rolls a fair dice and flips a fair coin. What is the probability of obtaining a 2 and a head?
That's it. Pretty clear wording, I just don't get it.
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10/23/17

What are the dimensions of the triangle
Nita is building a fenced triangular chicken pen. The base will be 10 yards less than the height. The total are must be 28 square yards. Find the new dimensions of the chicken pen  
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10/23/17

(-8)^12 divide (-8)^9
laws of exponents quotient rule
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10/23/17

help please show me how to slove
A 94‐inch piece of pipe is to be cut at two points A and B such that A and B are not on the ends of the pipe and the length from A to B is 48 inches. How many possibilities are there for obtaining... more
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10/23/17

BIDMAS (BODMAS) query
Hello   I need help with a maths question.  Two primary schools have given different answers using different methods for the following KS2 maths question so I'm looking for a consensus on the... more
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10/23/17

at what simple interest rate will an amount of money gain 50% of the principal in 4 years
please help
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10/22/17

Word Problem
A skyscraper is 485485 m tall. Its elevators rise at 56.8856.88 km/hr. How many seconds would it take for an elevator to rise the entire height of the building, nonstop?
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10/22/17

How long does it take the car to accelerate to a final speed of 7.6 m/s? (physics)
A driver of a car traveling at 18.1 m/s applies the brakes, causing a uniform acceleration of -2.7 m/s2. How long does it take the car to accelerate to a final speed of 7.6 m/s?
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10/22/17

Find the displacement after 4.15 s. (physics)
An automobile with an initial speed of 3.89 m/s accelerates uniformly at the rate of 3.55 m/s2. Find the displacement after 4.15 s.
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10/22/17

why is i the square root of -1
i understand that mathematicians use 'i' to simplify 'the square root of -1'. Why is that?
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10/22/17

Julio eats 6 raisins in the time Cari eats 4 raisins. When Julio has eaten 18 raisins, how many has Cari eaten?
Julio eats 6 raisins in thetime Cari eats 4 raisins. WhenJulio has eaten 18 raisins, howmany has Cari eaten?
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10/22/17

The price of a computer is reduced by 10%. by what percentage must the new price be increased, to restore the original price?
The price of a computer is reduced by 10%. by what percentage must the new price be increased, to restore the original price?
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10/21/17

Maximize profits
Suppose the Sunglasses Hut Company's profit is given by the equation P=-0.02q2+3q-32, where P is the total profit, in thousands of dollars, and q is the total number of sunglasses sold, in... more
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10/21/17

Is x^2 + bx + ax + ab a quadratic trinomial?
Quadratic trinomials are obtained when binomial expressions are expanded. Consider the following: (x + a)(x + b) = x2 + bx + ax + ab   This means that quadratic trinomials of the form x2 + (a +... more
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10/20/17

Position, Velocity & maybe Acceleration using Derivatives
1. Find the points on the graph of f(x)=1/3x^3+x^2-x-1 at which slope is a)2 and b)0?   2. Give a position function s(t)=t+1/t+1. Find the equation of the velocity v(t).
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10/20/17

What is the electrostatic potential energy (in joules) between an electron and a proton that are separated by 52 pm?
Need to figure this out to at least three significant figures.
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10/20/17

Metric System
If the speed of the space shuttle in orbit is about 29000 feet/second how many miles per hour does the space shuttle travel
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10/20/17

Without using a calculator, determine the number of real zeros of the function f(x) = x^3 + 4x^2 + x − 6.
 i been trying to do the problem forever i cant get the correct answer someone please help me with this
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10/20/17

1over q is less than 1 over 17 squared
what is the answer? 1 over q is less than 1 over 17 squared .Can a fraction have a decimal ?
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