4 years ago

*

1 answer:

6 0

Answer: 73°
complementary means 90°
90° = 17°+ 73°
The other answer would be if the angles were supplementary, or measuring 180°

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a grandfather is 8 times older than his grand daughter. in 8 years the grandfather will be 5 times as older as his grand daughte

mash [69]

Answer:

256 it's the answer

Step-by-step explanation:

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3 years ago

Buffy peeled 6 oranges every 18 minutes. At that rate, how long, in minutes, will it take to peel 2 oranges?

I am Lyosha [343]

Answer:

It would take 6 minutes

Step-by-step explanation:

All you have to do is 18 divided by 3 since 2 is 1/3 of 6.

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3 years ago

An architect wants to draw a rectangle with a diagonal of 13 centimeters. The length of the rectangle is to be 3 centimeters mor

butalik [34]

Answer:

The rectangle is 3.2 cm by 12.6 cm

Step-by-step explanation:

See attached image for a diagram.

Choose w to represent the width because the length is described by referring to the width: it's 3 more than (add 3) triple (multiplied by 3) the width.

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$w^2+(3w+3)^2=13^2\\\\w^2+9w^2+18w+9=169\\\\10w^2+18w-160=0\\\\5w^2+9w-80=0\\$

Now solve using the Quadratic Formula with $a=5,\,b=9,\,c=-80$ .

$w=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\w=\frac{-9\pm\sqrt{81+1600}}{10}\\\\w=\frac{-9\pm\sqrt{1681}}{10}\\\\w=\frac{-9\pm41}{10}\\\\w=-5\text{ or }w=3.2$

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3 years ago

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Hatshy [7]

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5x - 3y > 30

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3 years ago

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