A weather reporter in your area said that the speed of sound in air today is about 1100 ft./s what is the speed in scientific no
1 answer:
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Answer:
X Company charges more than Company Y
Step-by-step explanation:
Given:
Cost of X company =
Cost of Y Company =
for n minutes
Cost of X company for n minutes =
Cost of Y Company for n minutes =
Difference for n minutes we get by Subtracting Cost of Y Company for n minutes by Cost of X company for n minutes
Difference for n minutes = =
X Company charges more than Company Y
Answer: C. 17.5 feet
Step-by-step explanation:
The attached photo shows the triangle ABC formed by the ladder and the wall. It is a right angle triangle because one of its angles is 90 degrees. The ladder is the hypotenuse of the triangle. To determine the height of the wall, we would find BC by applying Pythagoras theorem
Hypotenuse^2 = opposite ^2 + adjacent^2
18^2 + 4.5^2 + BC^2
BC^2 = 324 - 20.25 = 303.75
BC = √303.75 = 17.5 feet.
In a quadratic function, the leading coefficient is
, i.e. the coefficient of
, and the constant term is
, i.e. the coefficient without any power of
.
So, if you want leading coefficient 2 and constant term -3, your function needs to be like
for any value of . Among your options:
- The first is not a quadratic (it starts with
)
- The second has leading term -3 and constant term 2
- The third is not a quadratic (same as the first)
- The last is correct.