Answer:
B
Step-by-step explanation:
Use the cofunction identies that states that




B is the answer.
Here's another one.
See the attached picture.
Answer:
The volume of the truck bed is 
Step-by-step explanation:
we know that
The volume is equal to

substitute the values , but first convert to an improper fractions



Find the volume

Convert to mixed number

Answer:
see explanation
Step-by-step explanation:
3- digit numbers starting with 5 are
528 and 582
3- digit numbers starting with 2 are
258 and 285
3- digit numbers starting with 8 are
825 and 852
there are 6 possible 3- digit numbers
258 , 285 , 528 , 582 , 825 , 852
x = 100°
In a parallelogram all the interior angles must add up to 360°
Opposite angles of a parallelogram are equal
360° = x + x + 80° + 80°
360° = 2x + 160°
2x = 200°
x = 100°
Alternatively:
x and 80° are corresponding angles because they are on the same line that crosses two parallel lines. Corresponding angles are complementary and add up to 180°.
180° = x + 80°
x = 100°