Answer:
d=7, b -13+7n c 71
Step-by-step explanation:
a= - 6
2nd term=a+(n_1)d
a+d
1+6
=7
b tn a-(n_1)d
_6+(n_1)d
_6 +7n_7
_13+7n
tn a+11d
6+11(7)
6+77
=83
Answer:
2 1/6
Step-by-step explanation:
13/6 is 6/6 + 6/6 + 1/6... each 6/6 = 1 sooo. 2 and 1/6 :)
orrr
6*2 is 12 (closest multiple of 6 to 13, so 2 is whole number w/ 1(/6) as a remainder
Answer:
![l \approx 15.455\,ft](https://tex.z-dn.net/?f=l%20%5Capprox%2015.455%5C%2Cft)
Step-by-step explanation:
The length of the ramp is computed with the help of the following trigonometric function:
![\sin \theta = \frac{h}{l}](https://tex.z-dn.net/?f=%5Csin%20%5Ctheta%20%3D%20%5Cfrac%7Bh%7D%7Bl%7D)
![l = \frac{h}{\sin \theta}](https://tex.z-dn.net/?f=l%20%3D%20%5Cfrac%7Bh%7D%7B%5Csin%20%5Ctheta%7D)
![l = \frac{4\,ft}{\sin 15^{\circ}}](https://tex.z-dn.net/?f=l%20%3D%20%5Cfrac%7B4%5C%2Cft%7D%7B%5Csin%2015%5E%7B%5Ccirc%7D%7D)
![l \approx 15.455\,ft](https://tex.z-dn.net/?f=l%20%5Capprox%2015.455%5C%2Cft)