Length of one edge is 10cm
And the surface area is 600cm2
Answer:
h = 14 units
Step-by-step explanation:
area of parallelogram = bh
plug everything in: 84 = (6)h
h = 84/6 = 14
Answer:
.45 miles
Step-by-step explanation:
27 mph - How many miles per minute
We already know that there are 60 seconds in an hour. So the best thing to do in this situation is to divide the miles per minute.
27/60 = 0.45
.45 miles per minute
As a fraction, your answer would be 9/20
Answer:
n = sqrt(7) - 5 or n = -5 - sqrt(7)
Step-by-step explanation:
Solve for n:
(n^2 + 10 n + 18)/(n + 5) = 0
Multiply both sides by n + 5:
n^2 + 10 n + 18 = 0
Subtract 18 from both sides:
n^2 + 10 n = -18
Add 25 to both sides:
n^2 + 10 n + 25 = 7
Write the left hand side as a square:
(n + 5)^2 = 7
Take the square root of both sides:
n + 5 = sqrt(7) or n + 5 = -sqrt(7)
Subtract 5 from both sides:
n = sqrt(7) - 5 or n + 5 = -sqrt(7)
Subtract 5 from both sides:
Answer: n = sqrt(7) - 5 or n = -5 - sqrt(7)