2x - 45 = x +4
Add 45 to each side:
2x = x + 49
Subtract 1x from each side:
x = 49
![(a+b)^n=\displaystyle\sum_{k=0}^n\binom nka^{n-k}b^k](https://tex.z-dn.net/?f=%28a%2Bb%29%5En%3D%5Cdisplaystyle%5Csum_%7Bk%3D0%7D%5En%5Cbinom%20nka%5E%7Bn-k%7Db%5Ek)
where
![\dbinom nk=\dfrac{n!}{k!(n-k)!}](https://tex.z-dn.net/?f=%5Cdbinom%20nk%3D%5Cdfrac%7Bn%21%7D%7Bk%21%28n-k%29%21%7D)
. The second term of the expansion occurs when
![k=1](https://tex.z-dn.net/?f=k%3D1)
.
So the second term of the expansion of
![(2r-3s)^{12}](https://tex.z-dn.net/?f=%282r-3s%29%5E%7B12%7D)
is
Answer:
m<V = 11.2 degrees
Step-by-step explanation:
In ΔUVW, the measure of ∠W=90°, UV = 6.2 feet, and WU = 1.2 feet.
From the triangle;
UV = hypotenuse = 6.2feet
WU = opposite = 1.2feet
Required
m<V
Using the SOH CAH TOA identity
sin m<V = opp/hyp
sin m<V = WU/UV
sin m<V = 1.2/6.2
sin m<V = 0.1936
m<V = arcsin(0.1936)
m<V = 11.16
m<V = 11.2 degrees ((to the nearest tenth of a degree)
Answer:
80 minutes... or an hour and 20 minutes
Step-by-step explanation:
55+25 = 80. an hour is 60 minutes long
Even
means ends with 0,2,4,6,8
adds to 10
the last number cannot be 0 because the first cannot be add to 10
it can be
8xx2
6xx4
4xx6
8xx2
where x is any whole number you want