Answer: 
Step-by-step explanation:
The formula for area of a triangle is 
Now we have to isolate for w.
First multiply by the 2 which is the reciprocal of 1/2 to cancel it out.

Now divide by h to isolate w.
Answer:
16 cm, 30 cm, 34 cm
Step-by-step explanation:
I got this answer simply by plugging each number into my calculator with the following equation:

When you the lower numbers into the equation, if the lengths really do give you a triangle, then you should get the largest number as your output. This can help you with any of the other questions that you may have to answer.
Answer:
B. 5 m/s
Step-by-step explanation:
Formula for constant velocity

plug in the values you have:

so B. 5 m/s
Answer:
412.
Step-by-step explanation:
412 =
1) less than 500
2) two even digits
3) quadrilaterals have 4 sides
4) 4 + 1 = 5 and there are 5 nickels in a quarter
5) the digital root of 412 is 7
This is an irrational number because it cannot be written as a fraction