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Explanation:</h2><h2>
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Hello! Remember you need to write complete questions in order to get good and exact answers. Here we know nothing about the students so I can only help you providing the correct steps to find <em>the product of a number and eight is 104:</em>
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Let that number be
, then the statement can be written in a mathematical language as follows:

Finally, <em>the unknown number is 13</em>
First get the tangent vectors by differentiating r1 and r2

Evaluate at t=0

Use identity for angle between 2 vectors:

Evaluate dot product and unit vectors:

Sub into identity and solve for theta:

Answer:
Angle of intersection is about 79 degrees.
Answer:
C
Step-by-step explanation:
I must be right because the slope is a positive 2 and has a y intercept
Answer:
5
Step-by-step explanation:
Answer:
2 inches
Step-by-step explanation:
60 min/ 10 min= 6
6* 1/3= 6/3 or 2
Hope this helps!