3 years ago

Which expressions are polynomials?

1 answer:

Natasha2012 [34]3 years ago

8 0

1st, 2nd,& 4th. If the variable is in the root or in the denominator / have a negative power, then it is not a polynomial. The 3rd one has the root of y, so it isnt a polynomial.

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What is reciprocal of 3/10

algol13

To get the reciprocal, simply flip the numerator and denominator. The reciprocal of 3/10 is 10/3.

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4 years ago

Two cars leave a town at the same time heading in opposite directions. One car is traveling 12 mph faster than the other. After

Katena32 [7]

<span>Find the speed of each car.
Let a be the first car
Let b be the second car
=> a = x miles per hour
=> b = x + 12 miles per hour
=> 2 (x+ x + 12) = 232 miles per hour
=> 2x + 12 = 232
=> 2x + 12 = 116
=> 2x = 116 - 12
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=> x = 52 (speed of Car A)
=> 52 + 12 = 64 miles per hour (speed of Car B)</span>

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