20 Cubic Inches^3.
Explanation:
The volume of a cone is Pi*R^2*H*1/3
We know the height, but we are given the diameter instead of radius. So divide 5.625 by 2. You get 2.8125.
Plug everything into the formula.
Pi*2.8125^2*7.5*1/3
(The ^2 means squared, or to the second power)
You get a number close to 20. Since we don’t know Pi, and we are not given a substitute for Pi, we make the answer in terms of Pi.
20 Cubic Inches^3.
Also, people who don’t know the answers to questions shouldn’t just put a random answer for the points. It’s unfair.
Answer:
Step-by-step explanation:
First we calculate the number of possible ways to select 2 cards an ace and a card of 10 points.
There are 4 ace in the deck
There are 16 cards of 10 points in the deck
To make this calculation we use the formula of combinations
Where n is the total number of letters and r are chosen from them
The number of ways to choose 1 As is:
The number of ways to choose a 10-point letter is:
Therefore, the number of ways to choose an Ace and a 10-point card is:
Now the number of ways to choose any 2 cards from a deck of 52 cards is:
Therefore, the probability of obtaining an "blackjack" is:
You had mistakes, so I did all of them.
9) -6(1 + 11b) = -6 - 66b
10) -10(a - 5) = -10a + 50
11) -3(1 + 2v) = -3 - 6v
12)-4(3x + 2) = -12x - 8
13) (3 - 7k)*-2 = -2 * (3 - 7k) = -6 + 14k
14) -20(8x + 20) = -160x - 400
15) (7 + 19b)*-15 = -15(7 + 19b) = -105 - 285b
16) (x + 1) * 14 = 14(x + 1) = 14x + 14
