Answer:
120°
Step-by-step explanation:
Opposite angles in a cross of 2 lines like this are equal;
A = 120 and B = D = 60°
Answer:
The answer is below
Step-by-step explanation:
From the image attached, the measurement of the roof is 5 m by 9 m on both sides. Hence:
Area of roof = 2 (5 * 9) = 90 m²
Since solar panels cost $4.00 per square meter, therefore:
Cost of solar panels = $4.00 per square meter * 90 m² = $360
The area of the front wall of the barn = (8 m * 7 m) + (1/2 * 8 m * 3 m) - (4 m * 4 m) = 52 m²
The area of the back wall of the barn = (8 m * 7 m) + (1/2 * 8 m * 3 m) = 68 m²
Area of each side wall of barn = 9 m * 7 m = 63 m²
Total area of wall = 52 m² + 68 m² + (2 * 63 m²) = 246 m²
Cost of shingles = $2.50 for each square meter * 246 m² = $615
Total cost of project = $615 + $360 = $975
Form the union for the following sets. E = {1, 2, 3} F = {101, 102, 103, 104} E ∪ F ={1, 2, 3, 101, 102, 103, 104}
Yanka [14]
<span>E = {1, 2, 3}
F = {101, 102, 103, 104}
answer
E ∪ F ={1, 2, 3, 101, 102, 103, 104}</span>
If you would like to know what is 3/8 written as a percent, you can calculate this using the following steps:
3/8 = 375/1000 = 0.375
0.375 * 100 % = 37.5%
The correct result would be 37.5%.
Part a)
The shape of the pool is rectangular prism, so the volume of the pool will be:
Volume = Length x Width x Depth
Volume = 6 x 3 x 1 = 18 cubic meters
Density of water = 1 gram per cubic centimeter
Density of water = 1,000,000 gram per cubic meter
Density of water = 1000 kilogram per cubic meter
Mass, volume and density are related by the following equation:
Mass = Density x Volume
Using the values, we can write:
Mass of water in pool = 1000 x 18 =18,000 kilogram
Part b)
Mass of water added to pool = 6000 kilograms
Density of water = 1000 kilogram per cubic meter
Volume = Mass/Density
Volume of water in the pool = 6 cubic meter
Since Volume = Length x Width x Depth
6 = 6 x 3 x Depth
⇒ Depth = 1/3 meters
