Answer:
r=0
Step-by-step explanation:
7r-5r+8=9r+8-r
This is already an equation
Combine like terms
2r+8 = 8r+8
Subtract 2r from each side
2r-2r +8 = 8r-2r +8
8 =6r+8
Subtract 8 from each side
8-8 = 6r+8-8
0 = 6r
Divide by 6
0/6 = 6r/6
0 =r
the height of cylinder B is 4 inches
Answer:
Step-by-step explanation:
<span>You have not added the options, therefore, I cannot provide an exact answer. However, I can help you with the concept.
In any fraction, the <u>denominator cannot be equal to zero</u> because this would make the fraction <u>undefined</u>.
<u>Excluded values</u> are the values that would make the denominator equal to zero.
We are given that the excluded values are 2 and 5, this means that the factors of the denominator are (x-2) and (x-5)
This means that the denominator is x</span>²<span> - 7x + 10
Pick the fraction which has this denominator.
Hope this helps :)</span>
Answer: The diameter is 20 units, the circumference is 
or about 62.83, and the area is 
or about 314.16
Step-by-step explanation:
To get the diameter, you can mutiply the radius by 2. (10*2= 20)
To get the circumference, you can use the equation 
, substituting r for the radius. For an exact answer, use pi. For an approximate, do only 2 times the radius and append pi to the answer ().
To get the area, you can use the equation 
, substituting r for the radius. For an exact answer, use pi. For an approximate, do only the radius squared ().
