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adoni [48]
3 years ago
9

How long is DE? Any help will be appreciated thank you

Mathematics
1 answer:
lilavasa [31]3 years ago
3 0

Answer: 4

Step-by-step explanation:

<u>solve for the missing angle</u>

the total degrees a triangle can have is 180 so

180-90-60=30

use <u>law of sines</u> to solve for x

\frac{x}{sin30} =\frac{4\sqrt{3} }{sin60}

cross multiply

sin60*x=4\sqrt{3} sin30

divide by sin60

x=\frac{4\sqrt{3}sin30 }{sin60}

type into calculator with (<em>ALPHA Y= </em>for a fraction on TI-84) MAKE SURE IT IS IN DEGREES

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Help please.........
murzikaleks [220]
The answer is x = 75 which is found through solving x+105 = 180 (subtract 105 from both sides)

Any time there's an inscribed quadrilateral like this, the opposite angles always add to 180 degrees (opposite angles are supplementary).
5 0
4 years ago
A washing machine cost $ 750. Mr. James bought it at a 40% discount. How much was the discount ?
DENIUS [597]

Answer:

300$

Step-by-step explanation:

750*0.4=300

3 0
3 years ago
Read 2 more answers
At a constant temperature, the volume of gas, V, is inversely proportional to its pressure, p. By what percentage will the press
dybincka [34]

Answer:

25 + v maybe

Step-by-step explanation:

7 0
3 years ago
10 workers take 5 days at 3 hours per day to repair abroad. How many days for two road workers at 5 hours each day?
dusya [7]

Answer:

\huge\underline\color{skyblue}{Answer ☘}

10 \: people \times 3 \:  hrs/day = \\ 30 \: man \: hrs/ \: day \\ \\ 2 \: people \times 5 \: hrs/day = \\ 10 \: man \: hrs \: per/day \\  \\ 2  \: people  \: work  \: 5  \: hrs \:  a  \: day,  \: so  \: they \:  \\deliver  \: 10  \: man \: hours \:  a  \: day. \\  To  \: finish \:  a  \: work  \: of  \: 100  \: man \: hours , \\ they’ll \:  need \\  \\ \frac{100}{10}  = 10 \: days

hope helpful~

4 0
3 years ago
Can someone pls help me
zavuch27 [327]
So the first thing you have to do is look at the input and output values and find the pattern. This is probably the hardest part. So 32-12=20 and 14-12=2 so we found the pattern all you have to do is find whats missing. So we have a blank and then a 14, all you do is add 12 to the 14 to find the input so the input for that would be 26 and now to find the other missing term you subtract 12 and that gives you -22. I hoped that helped.
7 0
3 years ago
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