Answer:
{x,y} = {6,7}
Step-by-step explanation:
[1] 2x = 12
[1] x = 6
// Plug this in for variable x in equation [2]
[2] (6) - 5y = -29
[2] - 5y = -35
// Solve equation [2] for the variable y
[2] 5y = 35
[2] y = 7
// By now we know this much :
x = 6
y = 7
We are done
brainlest plz and thx
A. 35 because of you look at the line plot it explains how long student are in there for and how many times a day. So you just need to figure out how many students do hw for how long and then multiply that by 10.
Answer:21
Step-by-step explanation: The median is the number in the middle sorted from least to greatest, here 21 is the middle number.
9514 1404 393
Answer:
B, D
Step-by-step explanation:
The quadratic expands to ...
(2n -1)² = (2n)² +2(2n)(-1) +(-1)² = 4n² -4n +1
The coefficients can be factored out of the sum, so ...
∑(4n²) = 4∑n² for example
The sum of 60 ones is 60:
So, the sum can be written as ...
_____
It appears that the key to choosing the correct answers is paying attention to signs.
The answer is the third one: 32 inches
