Answer:
28.4 degrees
Step-by-step explanation:
In the diagram attached
Height of the cliff, AB=54 m
Distance of the raft to the base of the cliff, AC=100m
We want to determine the angle of depression from the top of the cliff to the raft. This is angle OBA.

The angle of depression from the top of the cliff to the raft is 28.4 degrees correct to the nearest tenth.
Answer:
c. y=-2x+4
Step-by-step explanation:
Plug in x=0 and y=4 for y=-2x+4
4=-2(0)+4
4=4
Plug in x=3 and y=-2 for y=-2x+4
-2=-2(3)+4
-2=-2
Answer:
5. x = 13
6. x = 11; y = 3
Step-by-step explanation:
5. (9x + 2)° = 119° (alternate interior angles are congruent)

Subtract 2 from each side


Divide both sides by 9


6. (9x + 25)° = (13x - 19)° (corresponding angles are congruent)

Collect like terms


Divide both sides by -4


(13x - 19)° + (17y + 5)° = 180° (linear pair)

Plug in the value of x and solve for y


Collect like terms

Subtract 129 from both sides


Divide both sides by 17


So here is one thing that might help. Look at both the 1st and 3rd triangles, they have a right angle, just like the one you are trying to figure out. The centemeters is 4 for the longest side and the decimal, 0.57, is going to be multiplied 4 times. The decimal would be 2.28 when multiplied, and the angle is the same as the two triangles I spoke at the second sentence. x is equal to 2.28 but we need to change it to 1 decimal place, meaning that it is 2.3.
Hope this helped!
Nate
The circumference is C=2*3.14*r
r=15 inches
C=2*3.14*15=94.20 inches of ribbon