Answer:
12+y+x+x+x+12+y+x = 24+2y+4x; which is A
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
{(-5, -4), (-5, -2), (-5, 0)}
Answer:
3
Step-by-step explanation:
When you multiply .3 by 10, you will end up with the answer of three. There are three more ounces in the jar.
Answer:
The length of side AB is 5 units
Step-by-step explanation:
* Lets revise how to find the distance between two points
- If there are two points their coordinates are (x1 , y1) and (x2 , y2),
then we can find the distance between them by this rule:
d = √[(x2 - x1)² + (y2 - y1)²]
- Now lets solve the problem
∵ A = (4 , -5)
∵ B = (7 , -9)
- To find the length of AB use the rule of the distance above
- Let point A is (x1 , y1) and point B is (x2 , y2)
∵ x1 = 4 and x2 = 7
∵ y1 = -5 and y2 = -9
∴ AB = √[(7 - 4)² + (-9 - -5)²]
∴ AB = √[(3)² + (-4)²]
∴ AB = √[9 + 16] = √25 = 5
* The length of side AB is 5 units
You can solve it using an arithmetic sequence.
The nth term of the sequence is equal to the number of penguins in the nth row. It's equal to the number of the row.
There was one penguin in the first row.
The sum of the sequence:
There were 250 penguins - set the sum equal to 250 and solve:
The number of rows can't be a negative number so n≈21.87.
So, there were 21 full rows and one not full.
Calculate the number of penguins in 21 rows:
There were 19 penguins in the last row.
The answer:
There were 22 rows of penguins. The last row wasn't full, it contained 19 penguins.