Complementary angles are angles which add to 90 degrees, and supplementary angles are angles which add the 180 degrees.
So A and D are complementary, and B and C are supplementary.
To determine these answers, you can make note of which angles are acute (less than 90 degrees) and which angles are obtuse (more than 90 degrees). Because complementary angles add to 90, they both must be acute. Angles A and D work because 59+31 = 90.
Similarly, supplementary angles add to 180, therefore one of the angles must be obtuse. B is the only obtuse angle.. 119 + 61 = 180.
Answer:
y = 100 - 2.5 x is the equation that represents her total profit from
the project
Step-by-step explanation:
The given is:
1. An electrician earns 100 dollars for a project installing light fixtures
2. She must pay for the light fixtures herself and they cost 2 dollars
and 50 cents each
3. x represent the number of light fixtures and y represent her
total profit
Her profit is the amount of money she has left over after paying for
the light fixtures
∵ The cost of each light fixtures is 2 dollars and 50 cents
- Let us change the cents to dollar
Step-by-step explanation:
Answer:
70in.
Step-by-step explanation:
1 foot is the equivalent to 12 inches. So 6 feet is 6×12. ... So now we have 72 and 70 inches.
The height of the pile is 150.7 mm, and the volume is V = 6,830,477.5 mm³.
<h3>
How high will be the pile of papers?</h3>
We know that each paper is 0.55mm thick, then if we pile 274 of these, the height of the pile will be:
H = 0.55mm*274 = 150.7mm
Now we want to get the volume of the pile of paper. Remember that for a rectangular prism of height H, width W, and length L, the volume is:
V = H*W*L
In this case, we have:
- H = 150.7mm
- W = 18.5 cm = 185 mm
- L = 24.5 cm = 245 mm
Then the volume is:
V = (150.7mm)*(185 mm)*(245 mm) = 6,830,477.5 mm³
If you want to learn more about volumes:
brainly.com/question/1972490
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