They are incorrect because when going from percent to decimal, you divide the percent by 100 and when going from decimal to percent you multiply the decimal by 100. So in the case of 14.5%... divide 14.5% by 100 to get .145. The correct decimal is .145 not 14.5.
Answer: So when you double the radius, the area goes up by 4 times because 2 squared is 4. The area will always go up by the square of how much the radius goes up. By contrast, the circumference will only double -- from 12.56 to 25.12 because you do not square the radius (or diameter) -- you just multiply it by pi.
Answer:
x^2 + 9x + 20
Step-by-step explanation:
x^2 + 5x + 4x + 20
x^2 + 9x + 20
all u have to do is combine liked terms
Since 25% is 1/4 of 100%, then you do 8/4 and you get 2 and then you do 2 + 8 = 10.
we know that
For a spherical planet of radius r, the volume V and the surface area SA is equal to
The
ratio of these two quantities may be written as
we know
therefore
the answer is
