Answer:
Step-by-step explanation:
Given data
<em>The difference between the amount she sells each birdhouse for and the cost of supplies to build each birdhouse is $20</em>
This means that her profit = $20
the number of birdhouses = b
cost of tools= $45
Hence the amount she earns from selling b houses is given as
Answer:
<u>A = 61°</u>
<u>B = 72°</u>
<u>C = 47°</u>
Step-by-step explanation:
Well, first of all, we can see that:
So, we can find angle B.
Now, we can see to that angle C is just 47°
Finally, we know that the sum of all angles in a triangle is 180°, so we have:
I hope it helps you!
Problem 1
Answers:
Domain:
Range:
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Explanation:
The domain is the set of allowed x inputs of a function. The smallest x value we can use is x = -3 (note the very left-most point of the graph). The right-most point involves x = 5, but we can't actually use this x value due to the open hole. So that's why we don't have "or equal to" attached to the 5.
The range is the set of possible y outputs. The lowest we can go is y = -4, but we don't include this as part of the range. The largest y can get is y = 3. So the range is
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Problem 2
Answers:
Domain:
Range:
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Explanation:
We use the same idea as in problem 1. Both endpoints are open holes, so we don't include them as part of the domain and range. For instance, we can't include x = 4 but we can get closer and closer to it. The same idea applies to the range as well.
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Problem 3
Answers:
Domain:
Range:
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Explanation:
The same idea applies as used earlier. This time we include both endpoints, so we have "or equal to" as part of each inequality sign.