1) Volume of each ball: [4/3]π(r^3) = [4/3]π(2.25/2)^3 = 5.96 in^3
2) Volume of 3 balss: 3*5.96 in^3 = 17.88 in^3
3) Volumen of the cylindrical can: [πr^2]h = π(2.25/2)^2 * 6.75 = 26.82 in^3
4) Empty space: 26.82 in^3 - 17.88 in^3 = 8.94 in^3
Dear HopellennibH, you need to FOIL. It is an algorithm to use when multiplying two binomials. Here are the steps. The "F" means to multiply the first two terms which gives you x squared. The "O" means to multiply the first term by the outer term, which gives you -8x. The "I" means to multiply the inner terms, which -9 times x which gives you -9x. The "L" means to multiply the last terms, which are -9 times -8, which gives you 72. Write the terms in standard form and you have x squared -17x +72.
Answer:
-37 subtract -53
-53 subtract -37 = -16
Step-by-step explanation:
Answer:
x = 9
Step-by-step explanation:
We need to find the value of x if the polygons in each pair are similar.
As they are similar, the ratio of their sides are equal.
The sides of first polygon are 6,12 and 4.8. On the other hand, the sides of second polygon are (2x-9) and 18.
So,
So, the value of x is equal to 9.
