This is the formula for the surface area of a cylinder including the ends, like the total surface area of a can of peas.
S = 2·π·r² + 2·π·r · H
Divide each side by 2·π·r :
S/2·π·r = r + H
Subtract r from each side :
H = (S/2·π·r) - r
or
H = (S - 2·π·r²) / (2·π·r)
Answer: r+7
Whatever his age is now, we add 7 to it. So we simply add 7 to r getting r+7.
Example: Say he is 10 years old now
r = 10
r+7 = 10+7 = 17
meaning he will be 17 seven years from now
That is a rhombus and the formula is A= PQ/2
Answer:
Step-by-step explanation:
im ok and im doing homework T-T wbu
Answer: 4.6 (rounded to the nearest tenth)
Step-by-step explanation:
I assume that 1.6 is the coefficient of x, which is what we're trying to find out in this case.
Therefore, dividing 1.6 on both sides we get
from
1.6x = 7.37
to
x = 7.37/1.6 = 4.6 (approximately, rounded to the nearest tenth).