Answer:
c and d
Step-by-step explanation:
Here is you're answer:
In order to find the answer you have to find the common denominator and then subtract.

- Find the common denominator:



Therefore you're answer is "2/15."
Hope this helps!
Step-by-step explanation:
<u>Step 1: Use the quadratic formula to find the zeros</u>
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Answer: 
Answer:
About 23 minutes.
Step-by-step explanation:
8 miles is approximately 12.9 kilometers, so you would need to do the equation 12.9/1 = 5/x, which gives you the percentage of an hour you need, and then convert that to minutes by multiplying by 60.
Answer:
2.9 units
Step-by-step explanation:
Here the leg lengths are x and 7.7 and the one given angle is 21 degrees.
Think: which trig function incorporates both the length of the side opposite the 21 degree angle (x) and the vertical side (7.7)? It's the tangent function:
tan Ф = opp / adj
To be clear: the side adjacent (next to) the 21 degree angle is 7.7 units in length and the side opposite this angle is x.
Then we have tan 21 degrees = opp / adj = x / 7.7
and so 7.7(tan 21 degrees) = 7.7(03839) = 2.96 or (to one decimal place) 2.9