To solve this we are going to use the formula for the area of a circle:
where
is tte radius of the circle
We can infer that the bases of our cylinder are circles with 2 in radius, so
. Since we have tow circles, we are going to multiply the area by 2:
We can conclude that the <span>the combined area of the two bases of the cylinder is </span><span>
25.12 in.2</span>
Hello,
x²-13x-30=x²+2x-15x-30=x(x+2)-15(x+2)=(x+2)(x-15)
Roots are -2 and 15
26.25 because you would take 107÷4 because there are 4 quarts in a gallon and answer would either be 26.25 or if you're doing fraction answers it's 26 3/4
9w + 45 = 126
Ivan earns $9 per week so we would write it as 9w
Add 45 to it because that is what he also saved
Then he spent those savings which was 126.
Now we can find how many weeks he was saving for.
First minus 45 from both sides
9w = 126 - 45 = 81
The divide both sides by 9
w = 9
Ivan has been saving for 9 weeks