Make them both improper fractions.
77/10 - 19/5
Give them common denominators (multiply the second fraction by 2)
77/10 - 38/10
Subtract
39/10 = 3 9/10
Answer:
-89
Step-by-step explanation:
The first term of the sequence is a1 = -12.
The common difference between terms is ...
d = -13 -(-12) = -1
The generic term is given by ...
an = a1 +d(n -1)
Then the 78th term is ...
a78 = -12 +(-1)(78 -1) = -12 -77
a78 = -89
Answer:
Step-by-step explanation:
Remember that
Area of Circle =
![\pi = pi \\r = radius](https://tex.z-dn.net/?f=%5Cpi%20%20%3D%20pi%20%5C%5Cr%20%3D%20radius)
They told us that for this circle, the area is ![144\pi m^2](https://tex.z-dn.net/?f=144%5Cpi%20%20m%5E2)
If you put it back into the formula for area of a circle we get:
Area of Circle =
![144\pi = \pi r^2](https://tex.z-dn.net/?f=144%5Cpi%20%3D%20%5Cpi%20r%5E2)
Divide both sides by
.
144 = ![r^2](https://tex.z-dn.net/?f=r%5E2)
Now we want to solve for r (r = radius).
You need to square root each side
![\sqrt{144} = \sqrt{r^2}](https://tex.z-dn.net/?f=%5Csqrt%7B144%7D%20%3D%20%5Csqrt%7Br%5E2%7D)
![12 = r](https://tex.z-dn.net/?f=12%20%3D%20r)
So now we know the radius,
metres
Also remember that
Diameter = ![2r](https://tex.z-dn.net/?f=2r)
So,
Diameter = 2 times 12 = 24 metres
Answer:
16/37 I just did this... answer mines pls
Step-by-step explanation: