If you have listed the answer choices properly, none is correct. The orthocenter is (-2, 12).
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See the attached figure.
Answer: no; A 1 X 5 rectangle has a perimeter of 12 units and does not have an area of 6 units, so a counterexample shows that your friends statement is not correct
There are 15 nickels and 3 quarters.
Let x represent the number of nickels and y represent the number of quarters. Each nickel is worth 5 cent ($0.05) and each quarter worth 25 cents ($0.25)
A jar contains 12 more nickels than quarters.
x = 12 + y
x - y = 12 (1)
Also the, total value of the quarters equals the total value of the nickels. hence:
0.05x = 0.25y
0.05x - 0.25y = 0 (2)
Therefore x = 15, y = 3
Therefore there are 15 nickels and 3 quarters.
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Answer:
70%.
Step-by-step explanation:
To convert the fraction 14/20 to a percentage we multiply by 100:
(14/20) * 100
= 1400/20
= 70%.
Answer:
y=7.794
x=9
Step-by-step explanation:
tan 60=y/(9/2)
y=1.7320(9/2)
y=7.794
sin 60=y/x
x=y/sin 60
x=7.794/0.8660
x=9
