05/11/20

What does a fission reaction require to be sustainable?

critical mass leptons beta emission gamma emission
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05/11/20

What does a fission reaction require to be sustainable?

critical mass leptons beta emission gamma emission
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05/11/20

Given sinA = 2 over radical 13, and that angle A is in Quadrant 1, find the exact value of tanA in simplest radical form using a rational denominator
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05/11/20

Why am I getting two different answers?
If I add 45% to $4.46 and get $6.46 why do I get $6.55 when I add 40% and then 5% to the same $4.46?Which one is correct? The $4.46 is the original price, the 40% is a profit margin and the 5% is... more
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05/11/20

Factoring with Exponents
(x^2-4) (x^2-4)-----------------------= -------------------------- I am stuck at this point finishing the factoring? Help?3x+2 / x^2 -2x +1) 3x+2/... more
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05/11/20

College Algebra

A ball is thrown vertically upward from the top of a building 800 feet tall with an initial velocity of 80 feet per second. The distance d (in feet) of the ball from the ground after t seconds is... more
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05/11/20

Homework question help!!!!
The fish population in Looney Ton Lake is modeled by the equation P(t) = 2500(0.92)t, where p(t) represents the number of fish and t represents the time, in years, since January 2010. In which year... more
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05/11/20

Homework question help!!!
The number of bees in a colony is modeled by the equation N(d) = 120(1.15)d, where N(d) represents the number of bees and d represents the number of days from now. How many bees should the... more
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05/11/20

Matrix C has ions 2 X 7. Determine the dimensions of the matrix CD, if it is possible. Explain why if it is not. Matrix would have the dimensions 2 X 7

Matrix C has the dimensions 7 X 2 and Matrix D has the dimensions 2 X 7. Determine the dimensions of the matrix CD, if it is possible. Explain why if it is not.  Matrix CD would have the dimensions... more
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05/11/20

trains word problem
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 14 miles per hour slower than the westbound train. If the two trains are 950 miles... more
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05/11/20

Math question help!!!!
The population of a specific bacteria growing in a Petri dish is modelled by the function p(t)=5000(2)t/8 , where p(t) represents the number of bacteria and trepresents the time, in days, after the... more
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05/11/20

8x+14y=4;-6x-7y=-10
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05/11/20

Realize it maths
The perimeter of a rectangle is given by the formula , where l represents the length and w represents the width. What is the perimeter of a fenced-in rectangular yard​ measuring 50 feet by 95 feet.
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05/10/20

Jennifer has half as much money as her brother Tim. If Tim has $43.50, in which equations does x represent the amount Jennifer has? Select all that apply.
Jennifer has half as much money as her brother Tim. If Tim has $43.50, in which equations does x represent the amount Jennifer has? Select all that apply.
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05/10/20

A International company has 12800 and ploys in one country if this represents 31.4% of the company's employees how many employees does it have in total
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05/10/20

Thermodynamic Question
An engine working on the Carnot cycle has maximum and minimum temperatures of 1370oC and 315oC. Determine its efficiency and the heat supply per minute when the output is 24 kW. (Ans: 64.3% , 2240... more
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05/10/20

A 27 kg crate is initially sliding at 18 m/s when it reaches a surface that applies 65 N of friction. How far does the crate slide by the time it stops?

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05/10/20

The sum of one and three times a number is -53. What is the number?
The sum of one and three times a number is -53. What is the number?A) Translate the statement above into an equation that you can solve to answer this question. Do not solve it yet. Use x as your... more
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05/10/20

A 17-ft ladder leans against a building so that the angle between the ground and the ladder is 64°. How high does the ladder reach on the building? (Round your answer to the nearest foot.)
A 17-ft ladder leans against a building so that the angle between the ground and the ladder is 64°. How high does the ladder reach on the building? (Round your answer to the nearest foot.)
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05/10/20

A man is lying on the beach, flying a kite. He holds the end of the kite string at ground level and estimates the angle of elevation of the kite to be 65°.
If the string is 425 ft long, how high is the kite above the ground?(Round your answer to the nearest foot.)
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05/09/20

If y varies directly as x and y = 7 when x = 3 find y when x = 12
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05/09/20

Pair points algebra
Find an equation of the line that contains the given pair of points (16,19)(2,5). The equation of the line is what?
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05/09/20

Could you explain this more in depth? i don't really understand how to do this very well i could use some help.
The story: jim and jesse had the same amount of money.jim spent $58 and jesse spent $37. finally the ratio of there money was 1:4, how much money did they start with?
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05/09/20

Suppose you earn $1,000 and your employer withholds 23% for taxes.

a. How much will your employer withhold? b. How much will you take home?
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05/09/20

A sprinter has a mass of 75 kg and is able to run at a speed of 8.0 m/s for 9.5 s. Calculate the runner's power. Record your answer below to 3 place values. You do not need to show your work
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