Answer:
-3
Step-by-step explanation:
-3 because
9-12
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Remark
You have a trapezoid on the face closest to us. The first thing you must do is find the height. After you have done that, you find the area of the face. Then you can find the volume.
Step One.
Find the small space between the end of the perpendicular and the end of the line marked 3.9 cm.
That space = (6 - 4)/2 = 2/2 = 1
Step Two
Find the height
Use the Pythagorean theorem
a^2 + b^2 = c^2
a = 1
b = ???
c = 3.9
1^2 + b^2 = 3.9^2
1 + b^2 = 15.21 Subtract 1 from both sides.
b^2 = 15.21 - 1
b^2 = 14.21 Take the square root of both sides.
sqrt(b^2) = sqrt(14.21)
b = 3.7696 b and h are the same thing.
h = 3.7696
Step 3
Find the area of the Trapezoid.
h = 3.7696
b1 = 4
b2 = 6
Formula
A = (b1 + b2)*h/2
Sub and Solve
A = (4 + 6)*3.7696/2
Area = 10* 3.7696/2
Area = 18.85 cm^2
Step 4
Find the volume
V = B * h
B = 18.85
h = 8 cm
Volume = 18.85 * 8 = 150.78 cm^3
Answer:
You will need to make 3 transactions
Step-by-step explanation:
For the first one you will do 22 times 3 people which is 66 plus 10 which is 76. For the second one you will do 20 times 3 people which is 60 plus the 16 dollar which gives you 76. So 3 people have to buy tickets for the two companies to have the same price.
390 minutes
Multiply 6 by 60 and then add 30