Answer:
b ≈ 7.8
Step-by-step explanation:
using the law of sines
∠ A = 180° - 105° - 40° = 180° - 145° = 35° , then
= ( cross- multiply )
b × sin35° = 7 × sin40° ( divide both sides by sin35° )
b = ≈ 7.8 ( to the nearest tenth )
Answer:
Answer is 39.5
Step-by-step explanation:
firstly 7x+19=-79 so we divide-2x from -79 will give positive 39.5
If we plug in: x = 3, y= - 4;
- 4 + 4 = - 5 · ( 3 - 3 )
0 = 0 ( correct )
Answer: C ) ( 3, - 4 )
19.85/5 = $3.97 per gallon
$47.64/$3.97 = 12 gallons for $47.64