Answer:
Step-by-step explanation:
Given
Temperature = 12 degrees below 0
Required
Represent as an integer
12 degrees below 0 means that the temperature is less than 0.
This can then be expressed as:
Hence, the integer that represents this scenario is -12
Simplifying it would make it 3/4b^2. I can't write it down the correct way, but it's three over four times b squared. Unless it's a square root, then things would be different.
Answer:
hob
Step-by-step explanation:
jbibou
Answer:
54
Step-by-step explanation:
90-36=54
Answer:
Step-by-step explanation:
Find the sum of the first 42 terms of the following series, to the nearest integer.
2,7,12
Solution
The sum is given by
SUM_n=n/2*(a_1+a_n)
a_n=a_1+(n-1)d
a_1=2, n=42, d=5
The 42nd term is therefore given by
a_42=2+(42-1)5=207
SUM_42=42/2*(2+207)=21*209=4389
The sum of the first 42 terms of the series, therefore, is 4389
