2 years ago

4. (i) Solve the equation 2x2 – 7x + 4 = 0, giving

Mathematics

1 answer:

Colt1911 [192]2 years ago

6 0

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30 because 18 and the plain goes into 12 which is 30
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2 years ago

Another real estate agent sold a house for $315,000 last week. If her commission is 1.25% of the selling price of the home, find

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$3937.50

Step-by-step explanation:

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2 years ago

Which irrational number can be multiplied by –StartRoot 41 EndRoot to get a product that equals 1?

Marta_Voda [28]

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StartRoot StartFraction 1 Over 41 EndFraction EndRoot

Negative StartRoot 41 EndRoot

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2 years ago

The projected T. rex is about

dolphi86 [110]

Answer: $scale\ factor=230$

Step-by-step explanation:

You need to analize all the information given in the exercise.

You know that the actual height of the T-rex on the projector lens is the following:

$actual\ height=2\ cm$

The height of the projected T-rex is:

$projected\ height=4.6\ m$

Make the conversion from meters to centimeters:

$projected\ heigth=(4.6\ m)(\frac{100\ cm}{1\ m})\\\\projected\ heigth= 460\ cm$

Therefore, the scale factor will be:

$scale\ factor=\frac{projected\ heigth}{actual\ heigth}$

Finally, you must substitute values into the equation and then you must evaluate in order to find the scale factor of the projection. You get that this is:

$scale\ factor=\frac{460\ cm}{2\ cm}\\\\scale\ factor=230$

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2 years ago