Answer:
BC ≈ 19.4 cm
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos71° = = = ( multiply both sides by BC )
BC × cos71° = 6.3 ( divide both sides by cos71° )
BC = ≈ 19.4 cm ( to 3 significant figures )
Answer:
120
Step-by-step explanation:
36+84=120 this easy .
This relation is not a function
Answer:
Slope = -5/7
Step-by-step explanation:
Use the slope formula
(-1 - 4)/5 -(-2) = -5/7
Step-by-step explanation:
step 1. a polynomial must have whole non negative exponents
step 2. A, B, D have negative exponents
step 3. C is a polynomial.