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3 years ago

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Roselyn wants to drive her car at a speed of 60 miles per hour for 1.25 hours. Her car has a fuel efficiency of 15 miles per gal

lon.
How many gallons of fuel does Roselyn need for her journey?

1 answer:

EleoNora [17]3 years ago

3 0

Hence, there is 5 gallons of fuel Roselyn needed for her journey.

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Factor 54+27 using the gcf What is the factored expression

vazorg [7]

With 9 being the GCF this is what i got <span>9*(6+3)</span>

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3 years ago

What is the value of discontinuity of x^2+8x+4/x^2-x-6? Choices:

Morgarella [4.7K]

Answer:

-2

Step-by-step explanation:

Hello,

First of all, let's check the denominator.

$x^2-x-6 \ \ \text{ *** How to factorise it ...? ***}\\\\\text{*** The product of the roots is -6=-2*3 and their sum is 1 ***}\\\\x^2-x-6=x^2-3x+2x-6=x(x-3)+2(x-3)=(x+2)(x-3)$

Now, let's see the numerator.

$x^2+8x+4 \ \text{ *** -2 is not a zero as ***}\\\\(-2)^2+8*(-2)+4=4-16+8=-4\\\\\text{*** 3 is not a zero as ***}\\\\3^2+8*3+4=9+24+4=37\\$

So we cannot factorise the numerator with (x+2) or (x-3)

Then, -2 and 3 are the the discontinuities of the expression.

There is only -2 in the list, this is the correct answer.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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3 years ago

The list shows numbers in order from least to greatest. -34, -2 .-1.5.0.2.3, 10,25 Which is an integer that can be integer on th

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Answer:-2

Step-by-step explanation: I think

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3 years ago

Read 2 more answers

Ganezh [65]

Answer:

So, there are 3 cards in total, which means your pobability of picking one card out of the 3 cards is %33.33. So the probability of picking a 7 is 1/3. Because the other two numbers are greater than 7, and you already picked 7 so you cannot pick it again, the probabitily of pick a number greater than 7 is %100, or 3/3.

I hope that answers your question! :)

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3 years ago

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fenix001 [56]

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3 years ago