Plz helpp need this noww
2 answers:
Answer:
So, d(4)=68. That means that after 4 hours, Joanna has cycled 68 miles.
Step-by-step explanation:
First, we need to find what d(4) equals. In this equation t=4, so to solve plugin 4 and simplify. Therefore, the equation is . Once you multiply and add you get d(4)=68; this answers the first question.
Then, the next two questions ask you to interpret this answer. To do that go back and read what each variable stands for. "t" is for the time Joanna has cycled. So, in the equation d(4), 4 hours have passed. Additionally, "d(4)" represents the number of miles she has ridden. This means since d(4)=68 she has cycled 68 miles.
Note that since I cannot see the options I guessed at the exact wording, but the answers should be similar to what I wrote.
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Answer:
Step-by-step explanation:
This is what is called the Midsegment Theorem, which states that the relation of a triangle's midpunkt is parallel to the triangle's third side, and the mid-segment length is half the third side length, so you would take half of and set that expression equal to the midsegment:
2x + 10 = 3x
-2x - 2x
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You then plug this back into both expressions above to get the double-segment of 60 and the mid-segment of 30. We can tell this is correct because 30 and 60 are relatively proportional to each other.
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