Step-by-step explanation:
sin(A − B) = sin A cos B − cos A sin B
sin50°cos 40° - cos50°sin 40°
= sin(50-40)°
=sin10°
cos(A + B) = cos A cos B − sin A sin B
cos75°cos 15° - sin75°sin 15°
= cos(75+15)° = cos90° = 0
Answer:
$90 ÷ $2.50 = 36
Massimo rode the bus 36 times.
Please mark brainliest. Have a great day!
Answer:
Parallelogram
Step-by-step explanation:
This is a parallelogram
See the plotted points
Answer:
Step-by-step explanation:
The opposing side and the hypotenuse for the angle are given.
Remember, when the opposing side and the hypotenuse are given, take the cos ratio.
- cosx = 7/9
- x = cos⁻¹ (7/9)
- x = 38.9424413°
- <u>x = 39°</u>
Miles PER gallon means the ratio of miles DIVIDED BY gallons. "Per" means "divide."
Amy's mileage is 152 mi / 10.07 gal = 15.1 mi/gal (rounded to nearest tenth, for example).