Step-by-step explanation:
Take two empty ice cream cups. Make a small hole at the bottom of each cup and pass a long thread through them. Tie a knot or match stick at each end of the thread so that the thread does not slip out through the holes. ... Thus, sound can travel through a solid
3,4,6,3,2,5,6,1,12,8,3,2 calculate the mean
Bas_tet [7]
The mean is the average.
Add all the numbers together than divide by the amount of numbers there are:
3 + 4 + 6 +3 + 2 + 5 + 6 + 1 + 12 + 8 + 3 + 2 = 55
there are 12 numbers.
Mean = 55 / 12 = 4.583
Round the answer as needed.
Answer:
228.36 ft^2
Step-by-step explanation:
1. The total surface area is the area of two trapezoids and 4 rectangles. The rectangles all have the same width, so we can figure their area by finding their total length: the perimeter of the trapezoid.
<u>rectangle area</u>
The perimeter of the isosceles trapezoid is the sum of its edge lengths:
P = 13 +8.06 +5 +8.06 = 34.12
The rectangles are 3 ft wide, so their total area is ...
A = LW = (34.12 ft)(3 ft) = 102.36 ft^2
__
<u>trapezoid area</u>
The area of a trapezoid is given by the formula ...
A = (1/2)(b1 +b2)h
A = (1/2)(13 ft +5 ft)(7 ft) = 63 ft^2
__
<u>total area</u>
As we said, the total area is the sum of the rectangle area and that of two trapezoids:
total area = rectangle area + 2 × trapezoid area
A = 102.36 ft^2 + 2 × 63 ft^2
A = 228.36 ft^2
The area of the trapezoidal prism in figure 1 is 228.36 square feet.
Answer:
hoped this helped
Step-by-step explanation:
10$ + $4.20 = $14.20
50$ + $11.50= $61.50
5$ + $1.15= 6.15$
X=25x−3=13−3x
5x+−3=13+−3x
5x−3=−3x+13
Step 2: Add 3x to both sides.
5x−3+3x=−3x+13+3x
8x−3=13
Step 3: Add 3 to both sides.
8x−3+3=13+3
8x=16
Step 4: Divide both sides by 8.
8x8=168
x=2
