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Sir/madam as F=GMM/R2 and by Kepler's third law it is T2 proportion to R3 HENCE can I say F=GMMK/T4\3 where K is arbitrary constant after removing proportionality sign ?

please show how you got the answer. I keep coming up with 2 different answers and would like to compare. Please hurry :) Thanks

-2x + y + 4z = 5 X + 3y - z = 2 4x + y -6 z =11

I don't know how to do this at all. Please help 

yesterday | Frank from Boca Raton, FL | 1 Answer | 0 Votes

How many joules of heat are required to heat 35.0 g of isopropyl alcohol from the prevailing room temperature, 21.2°C, to its boiling point, 82.4°C? (The specific heat of isopropyl alcohol is 2.604...

One mixture of paint has 35% pigment. Another mixture has 10% pigment. If you want 11 gallons of paint that has 23% pigment, how many gallons of each mixture should you use? Express your answer in...

Suppose for this problem that Pr[A|B]=11 P r A B 1 1 , Pr[A]=14 P r A 1 4 , and Pr[B′]=1112 P r B 11 12 . THEN What is Pr[B|A′] P r B A ?

Is R7 a subspace of R7?

I need this as a proportional relationship.

A rectangular garden has a perimeter of 24 yards. Fencing across the length costs $3 per yard and along the width costs $2 per yard. The total cost of the Fencing is $62. Find the length and width...

3 hours ago | Leon from Los Angeles, CA | 1 Answer | 0 Votes

Determining what the probability answer  would be. Looking for all possibility answers and how they are mathmatically written as answers.

You invested $10,000 in two accounts paying 8% and 10% annual interest. At the end of the year, the total interest from these investments was $940. How much was invested at each rate?

2 hours ago | Leon from Los Angeles, CA | 1 Answer | 0 Votes

When a plane flies with the wind, it can travel 2160 mikes in 3 hours. When it flies in the opposite direction it takes 4 hours to fly the same distance. Find the rate of the plane in still air and...

2 hours ago | Leon from Los Angeles, CA | 1 Answer | 0 Votes

You are choosing between two cell phone plans. Data plan A offers a flat monthly rate of $20 per gb. Data plan B has a monthly fee of $40 with a charge of $15 per gb. For how many gbs of data will...

3 hours ago | Leon from Los Angeles, CA | 1 Answer | 0 Votes

After 7 hours of burning, a candle has a height of 24.9 centimeters. After 18 hours of burning, its height is 21.6 centimeters.

gretchen lives in florida where the current temperature is 69f and rising at a rate of 2f per hour.she is talking on the phone to her friend in indiana where the temperature is now 84f and falling...

Find the slope-intercept form of the line that satisfies the given conditions. Through A(3, 0) and B(−5, 2)

Find an equation of the circle that satisfies the stated conditions. (Give your answer in standard notation.) Center C(−5, 9), tangent to the y-axis

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The resistance, R, of a wire varies directly as its length and inversely as the square of its diameter. If the resistance of a wire 3500 ft long with a diameter of 0.29 inches is 18952 ohms, what...