Answer: lalala
Step-by-step explanation:
Since both are on the line y=10, the distance between the points is their difference in x-coordinates: 15 - (-30) = 45 units.
Answer:
11,001,000
Step-by-step explanation:
11,000,912 rounded to is nearest thousand is 11,001,000 because, 11,001,000 is closer to 11,000,912 than 11,000,500.
Because it's approximate is an estimated answer than a precise one.
The handshake is an illustration of combination, and the values of n and r are 21 and 2, respectively
<h3>How to determine the values of n and r?</h3>
The number of students in the class is 21.
This represents the value of n
i.e. n = 21
Each student shakes hand with another student (i.e. 2 students per handshake)
This represents the value of r
i.e. r = 2
Hence, the values of n and r are 21 and 2, respectively
Read more about combination at:
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Width of a rectangle is half its length:
2w = l
Perimeter is 36
2w + 2l = 36
Plug first equation into second (substitution)
2w + 2(2w) = 36
2w + 4w = 36
6w = 36
w = 6
Plug back into first equation to solve for l
2(6) = 12 = l
