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3 years ago

Please help with part b on ex 3&4

Mathematics

1 answer:

BartSMP [9]3 years ago

8 0

Answer

Ex 3) - b

(-2, 19) (1,4)

Ex 4) -b

(1, 3) (3, 5)

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Students and teachers at a school were asked if they preferred blue, green, red, or yellow. The table shows the results of the s

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3 years ago

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In which polynomials does P(x) approach negative infinity as x approaches infinity?

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Answer:

all are answers except P(x) = 7x^2 +11x - 6 and P(x) = x^3+ x^2 + x

Step-by-step explanation:

All answers with a negative slope in the highest order polynomial will approach negative infinity as x approaches infinity. This means that all are answers except P(x) = 7x^2 +11x - 6 and P(x) = x^3+ x^2 + x

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4 years ago

Will give brainliest if you help with this question.

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3 years ago

Which is a function and which isnt a function?

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Answer:the 1st and 4th are functions the 2nd and 3rd are not

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4 years ago

a small airplane flies 1 015miles with an average speed of 290 mph. 1.75 hours after the plane leaves, a Boeing 747 leaves from

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Answer:

<em>The Boeing 747 had an average speed of 580 mph.</em>

Step-by-step explanation:

<u>Constant speed motion</u>

An object is said to travel at constant speed if the ratio of the distance traveled by the time taken is constant.

Expressed in a simple equation, we have:

$\displaystyle v=\frac{d}{t}$

Where

v = Speed of the object

d = Distance traveled

t = Time taken to travel d.

From the equation above, we can solve for d:

d = v . t

And we can also solve it for t:

$\displaystyle t=\frac{d}{v}$

The small airplane travels 1015 miles at a constant speed of v=290 miles/hour. The time it took to arrive its destiny was:

$\displaystyle t=\frac{1015}{290}$

t = 3.5 hours

The Boeing 747 left from the same point 1.75 hours after the small plane and traveled the same distance. It needed a time t' = 3.5 - 1.75 = 1.75 hours, thus its speed must have been:

$\displaystyle v=\frac{1015}{1.75}=580$

The Boeing 747 had an average speed of 580 mph.

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3 years ago