Lets round each distance to the nearest tens place, and then add them up to get an estimate. 143 rounds down to 140, 138 rounds up to 140, and 141 rounds down to 140. So: 140 + 140 + 140 = 420 miles
The answer is 81
A number squared means you multiply by itself 9*9=81
The circumference would also be doubled. The formula to find circumference is 2π r; since radius is just the diameter divided by two, if you double it the radius also doubles. All in all, this doubles the circumference. For example, if the diameter was 10, the radius would be 5. Circumference for this circle would equal 31.4. Now, if you were to double the diameter to equal 20, thus making the radius 10, the circumference would be 62.8.
12a+24 = 90 because all angles in a rectangle equal 90 degrees.
Subtract 24 from both sides.
12a=66
Divide both sides by 12
a=5.5
Answer:
The second term in the sequence is -9
Step-by-step explanation:
Given the nth term of a sequence to be a(n) = a(n-1)+4 where n is the number of terms of the sequence
If a(1) = -13... (1)
The second term of the sequence is generated for n= 2:
a(2) = a(2-1)+4
a(2) = a(1)+4... (2)
Substituting equation 1 into 2
a(2) = -13+4
a(2) = -9
The second term in the sequence is -8
