The answer is -6 + n + 9n
The formula in computing the circumference of a circle is:
<span>C = 2πr</span>
Where:
r = the radius of the circle
Substituting
the given measurement of radius to the formula:
C
= 2 (π) (7 feet)
C
= 14π feet
Therefore,
the circumference of the circle is 14π ft.
Answer:
The answer is 455.
Step-by-step explanation:
You add them all up, then divide the sum by 3.
To solve this problem, let us first assign variables. Let
us say that:
A = runner
B = cyclist
d = distance
v = velocity
time = t
The time in which the cyclist overtakes the runner is the
time wherein the distance of the two is the same, that is:
dA = dB
We know that the formula for calculating distance is:
d = v t
therefore,
vA tA = vB tB
Further, we know that tA = tB + 2, therefore:
vA (tB + 2) = vB tB
4 (tB + 2) = 14 tB
4 tB + 8 = 14 tB
10 tB = 8
tB = 0.8 hours = 48 min
Therefore the cyclist overtakes the runner after 0.8
hours or 48 minutes.
Answer: First Choice. no solution
Step-by-step explanation:
<u>Given</u>
5 (x + 1) ≤ 5x + 3
<u>Expand parentheses and apply the distributive property</u>
5x + 5 ≤ 5x + 3
<u>Subtract 5x on both sides</u>
5x + 5 - 5x ≤ 5x + 3 - 5x
5 ≤ 3
5 ≤ 3 is not true, therefore, there is <u>no solution</u>.
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