Answer:
14 cm.
Step-by-step explanation:
We have been given that an aquarium is a right rectangular prism 18.5 cm long and 15 cm wide. We are also told that Martene put 3885 cubic cm of water in the aquarium.
To find the depth or height of aquarium, we will use volume of rectangular prism formula.
, where,
l = Length of prism,
w = Width of prism,
h = Height of prism.
Upon substituting our given values in above formula we will get,
Therefore, the aquarium is 14 cm deep.
Answer:
D. 9
Step-by-step explanation:
We know that cos theta = adjacent / hypotenuse
cos 60 = x /18
Multiply each side by 18
18 cos 60 = x/18 * 18
18 cos 60 =x
9 =x
Supplementary angles because because angle 1 + angle 2 = 180° so they form a line
Answer:
80 feet
Step-by-step explanation:
According to the tangent-secant theorem, the square of the tangent length is equal to the product of the secant segment and the external portion.
In other words:
30² = (10 + x) (10)
900 = 100 + 10x
800 = 10x
x = 80