We know that the smaller base is x cm, the greater base is x+4 cm, and that the height is x/2 cm.
Since the area of a trapezium is given by
If we plug the expressions we have
If this must equal 84, we can solve for x as follows: start with
Multiply both sides by 4:
Subtract 336 from both sides:
We can divide both sides by 2 to make computation simpler:
Use the quadratic formula (or any mean you prefer) to solve this equation and get the solutions
We can't accept the negative solution, because it would imply
and we can't have negative side lengths. So, the answer is 12.
Answer: 6a
Step-by-step explanation:
A + 5A just equals 6A. Let me know if I answered incorrectly or if you want me to clarify.
The part that justin and his wife need to work on is their savings account. if something happens to the money that you have now you need to be able to have enough money saved to keep going on with their life.
The probability that a region prone to hurricanes will be hit by a hurricane in any single year is one tenth or 0.1
P(at least one) = 1 - P(none in five years)
-----
= 1 - 0.90^5
= 1 - 0.59049
=0.40951 or 0.41.
41% probability that there will be a hurricane at least once in the next 5 years.
Answer:
9 and 8, 12 and 6, 18 and 4, 24 and 3, 36 and 2
Step-by-step explanation:
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