Answer:
Step-by-step explanation:
7d – 8 = 3d + 8
7d - 3d = 8 + 8
4d = 16
d = 16 /4
d = 4
The answer is 4/8 because half of 16 is 8 and half of 8 is 4, therefore they are equivalent
Answer:
726 feet
Step-by-step explanation:
Object height and shadow length are proportional, so you have ...
(object height)/(shadow length) = (18 ft)/(72 ft) = (dam height)/(2904 ft)
Then the dam height is ...
dam height = (2904 ft)(18/72) = 726 ft
Hoover Dam is 726 feet high.
Answer:
a graph can be divided into 4 quadrants.
a zero abscissa, means the point lies on the origin.
a negative ordinate means the point lies on the y axis in the third and fourth quadrants.
Answer:
Step-by-step explanation:
Using the Pythagorean identity
sin²x + cos²x = 1, then
cosx =
cosΘ =
= = =