Answer:
B
Step-by-step explanation:
If you look in all of the answer choices, all of the x inputs have already been used! Please rate brainliest! Have a nice day!
Answer:
h = 54 feet
Step-by-step explanation:
The equation for the volume of a cone is V =
× π × r² × h.
You have the volume, which is 8,138.88, and the radius of the base, which is 12.
V = 8,138.88
h = 12
π = 3.14
When you plug everything you know into the equation, you get:
V =
× 3.14 × r² × h.
8,138.88 =
× 3.14 × (12)² × h
After you multiply everything on the right side, you come out with:
8,138.88 = 150.72 × h
To find h, you can divide each side by 150.72.
8,138.88 ÷ 150.72 = 54 feet!
Answer: y=5, x=4
Step-by-step explanation:
3y= 15 divide both sides by 3
Y= 5
4x = x+12 subtract x from both sides.
3x = 12 divide both sides by 3
X= 4
Given:
An exam starts at 10:10 and lasts for 75 minutes.
To find:
The time when the exam end.
Solution:
We have,
Starting time = 10:10
Exam duration = 75 minutes
First we will divide the 75 minutes in two parts 50 minutes and 25 minutes.
We know that 50 minutes after 10:10 is 11:00 and 25 minutes after 11:00 is 11:25. So,
10:10 + 75 minutes = 10:10 + 50 minutes +25 minutes)
= (10:10 + 50 minutes) +25 minutes
= 11:00 +25 minutes
= 11:25
Therefore, the exam ends at 11:25.
The formula for cos is cos= opposite/hypotenuse. So you look for the length measure opposite the angle, and the triangle’s hypotenuse. To do this, you will find the unknown angle as the possible of said angle is x.
180-90-42
=48
Cos (48) = 17.49/x
— Multiply both sides by x
x • cos(48) = 17.49
— divide both sides by cos(48)
x= 17.49/cos(48)
Plug into a calculator and simply to the nearest thousandth.
x = 26.138