Evaluate 8a+3b-10+c^28a+3b−10+c 2 8, a, plus, 3, b, minus, 10, plus, c, start superscript, 2, end superscript when a=2a=2a,
ohaa [14]
Answer:
The given expression 
at a = 2 , b = 5 and c = 4 is 37.
Step-by-step explanation:
Given : expression
We have to evaluate the given expression at a = 2 , b = 5 and c = 4
Consider the given expression
Substitute, a = 2 , b= 5 and c = 4
We have,
Simplify, we have,
We get,
= 37
So, The given expression 
at a = 2 , b = 5 and c = 4 is 37.
Answer:
A
Step-by-step explanation:
Using the Sine rule in Δ ABC
= 
, substitute values
= 
( cross- multiply )
BC sin38° = 3 sin66° ( divide both sides by sin38° )
BC = 
→ A
153
<u>+121</u>
274
Hope this helps!
