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Crazy boy [7]
2 years ago
8

Who knows this? I need help ASAP

Mathematics
1 answer:
snow_lady [41]2 years ago
6 0

Answer:

A=674.5cm square

Step-by-step explanation:

First, using pythagoras theorem:

Cos x =2/5-90=66.4

This is angle ACD.

Then 1/2 absinC=1/2(5x4)sin66.4

=664.2cm square

Next, find angle DCB by 90-23.578=66.4

And angle CBD by 180-30-66.4=23.578

Use sin23.578=4.58/H

H=11.45cm(length of d)

Now, use 1/2absinC again to find the area of another part of the triangle.

1/2 11.45x4.5sin23.6=10.31cm square

Lastly add them up!

A=664.2-10.31cm =674.5cm square.

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148 degrees

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The angles are supplementary so if you subtract 32 from 180, you get <em><u>148 degrees. </u></em>

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Answer:

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Step-by-step explanation:

Since Pat is required to sell candy bars to raise money for the 6th grade field trip, and there is a 40% chance of him selling a candy bar at each house, and he has to sell 5 candy bars in all, to determine the number of houses it takes and determine the probability he sells his last candy bar at the 11th house, the following calculations must be performed:

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4 0
3 years ago
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Step-by-step explanation:

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