Step-by-step explanation:
First find the area of the rectangle with the variables.

Now the areas are equal, so we have to solve the equation

Answer:
Factor the numerator and denominator and cancel the common facotors which would give you 0.07843137
Volume of a cone: 1/3

r²h
r is the radius (diameter ÷ 2) and h is the height.
Find the radius first using the diameter: 2

÷ 2 = 1.25
Now plug in the numbers into the formula.
1/3

1.25²10 = <span>16.4
</span>
The volume of the cone is 16.4 cubic feet.
Answer:
perimeter :
4+10+4+ (pi * radius) .........."radius =5"
area:
(10*4)+(0.5 * pi * r square)
Answer:
The reaction ca occur at 10 degree Celsius or -14 degree Celsius.
Step-by-step explanation:
We are given the following in the question:
The completion of a chemical reaction is expressed by the equation

where y is the number of seconds needed to complete the reaction and x is the temperature in degrees Celsius at which the reaction occurs.
We have to find the temperature at which the reaction occurs, if the completion time of reaction is 160 seconds.
Putting y = 160

Thus, the reaction ca occur at 10 degree Celsius or -14 degree Celsius.