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Usimov [2.4K]
3 years ago
10

What is the area, in square units, of triangle $ABC$ in the figure shown if points $A$, $B$, $C$ and $D$ are coplanar, angle $D$

is a right angle, $AC = 13$, $AB = 15$ and $DC = 5$?

Mathematics
1 answer:
Zolol [24]3 years ago
6 0

Answer:

The answer is 24.

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olasank [31]

Answer:

<h2>37</h2>

Option A is the correct option.

Step-by-step explanation:

{a}^{2}  +  {b}^{2}  - 2ab \:  \cos \: c \:  =  {c}^{2}  \\ a = 4 \\ b = 5 \\ c = 2 \\  \\ 2ab \: cos \: c =  {a}^{2}  +  {b}^{2}  -  {c}^{2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  =  {(4)}^{2}  +  {(5)}^{2}  -  {(2)}^{2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  = 16 + 25 - 4 \\  \:  \:  \:  \:  \:  \:  = 41 - 4 \\  \:  \:  \:  \:  \:  \:   = 37

Hope this helps...

Good luck on your assignment...

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3 years ago
Before any dinner service, the manager confirms when the number of reservations at a restaurant is subtracted from twice the num
pochemuha

Answer:

Its A

Step-by-step explanation:

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3 years ago
Someone please help ASAP!!!!!<br> SERIOUS ANSWERS ONLY!!!!!!
Kisachek [45]
Y=mx+b

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<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

I'm going to help youuuuu.

Step-by-step explanation:

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Your answer is A) because the rise/run is -2/4x, which simplifies to -1/2x, which is <em>option A)</em>.

{2}

Dario's salary is <em>B) $12 per hour</em>. This is because, in 5 hours, Dario makes 60 dollars. If you find the unit rate of $60 in 5 hours, the answer is $12 per hour.

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I hope this helps! I am sorry if any of these are incorrect!

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3 times the amount of x+2? it is worth 10 points and
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Not too sure what you're asking, but...

3(x+2) is the expression
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3 years ago
Read 2 more answers
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