Can you please help me!
1 answer:
Answer:
D
Step-by-step explanation:
When similar triangles are present, you can write ratios which are equal in a proportion. To write the ratios, you must compare corresponding sides either from triangle to triangle or within each triangle.
For instance, focus on triangle BCD and ABC. BCD has the ratio 4/y within its triangle. Since 4 is the short side of BCD and y is the long side of BCD. The same ratio in triangle ABC would be short side to long side. The short side of ABC is y and the long side is 20 so the ratio is y/20.
Putting them together we have
Answer D.
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Answer:
<em>Answer</em><em> </em><em>B</em><em> </em><em>is</em><em> </em><em>correct</em><em>.</em>
A) We know that
where d
= distance,
v = velocity,
t = time
In this case, d = 2 mi., t = 30 min. So we get
Dividing both sides by 30, we get
Thus a function for his walk would be
where y = distance and x = number of minutes he walks.
b) Domain of a function is a set of x-values on which the function defined. In this case, the number of minutes is 30 at maximum. So the domain of the function is [0, 30].
where d
v = velocity,
t = time
In this case, d = 2 mi., t = 30 min. So we get
Dividing both sides by 30, we get
Thus a function for his walk would be
where y = distance and x = number of minutes he walks.
b) Domain of a function is a set of x-values on which the function defined. In this case, the number of minutes is 30 at maximum. So the domain of the function is [0, 30].