Mathematics, 10.03.2020 20:00 kimlyn58p0wyn0
The amount of heat transferred per hour through a glass window varies jointly with the surface area of the window and the difference in temperature between the areas separated by the glass. A window with the surface area of 7.5 square feet lose 135 BTU per hour when the temperature difference is 40 degrees Fahrenheit. How much heat is lost per hour for a similar window with a surface area of 12 square feet when the temperature difference is 35 degrees fahrenheit?
Answers: 3
Mathematics, 21.06.2019 20:30
Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.
Answers: 1
Mathematics, 21.06.2019 21:10
Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x
Answers: 2
Mathematics, 21.06.2019 22:40
The value of x in this system of equations is 1. 3x + y = 9 y = β4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (β4x + 10) = 9 βx + 10 = 9 βx = β1 x = 1 what is the value of y?
Answers: 1
Mathematics, 21.06.2019 23:20
Which expression is a factor of 12x2 + 29x β 8? x β 8 2x β 1 3x + 8 4x + 1
Answers: 1
The amount of heat transferred per hour through a glass window varies jointly with the surface area...
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