Answer:
286
Step-by-step explanation:
Use term formula for +/-
Tn = a + (n-1)d
n= number of term
a= first number in sequence
d= difference between each number
T55 = 16 + (55-1)5
T55 = 16 + 270
=286
Answer:
y=1/4x+2.5
Step-by-step explanation:
Find rise/run
rise/run=1/4
Look for the point
(2,3)
Plug into y-y2=m(x-x2)
y-3=1/4(x-2)
Solve
y-3=1/4x-0.5
y=1/4x+2.5
Massage me if it’s not clear
Hope it’s right
Best luck with your studying
Is BC=2.3 one of the options?
For that question, you can use the cosine rule, where;

In this case, we have..

Solving for BC with this will get you 2.250406, rounded off to the tenth is 2.3.