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joja [24]
3 years ago
9

I need help lol with this problem pls help pls pls pls

Mathematics
1 answer:
Virty [35]3 years ago
5 0

Answer:

Step-by-step explanation:

For this triangle, since the angle is included between 2 given sides, the formula will be:

A =\frac{1}{2}ab*ac*sin(angleA)

Putting values where they belong:

A=\frac{1}{2}(10)(12)sin72

Do all that in your calculator (in degree mode, NOT radian!) to get

A = 57.1 square cm

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Find the Equation of x(2x+5)-3(2x+5)=0
Nata [24]
2x² + 5x -6x - 15 = 0

2x² - x - 15 = 0

2x² -x = 15

x = 3

3 x 3 = 9 x 2 = 18 - 3 = 15

i really don't know how i got 3 in the first place but that is your answer

hope this helps


5 0
3 years ago
QUICKK EXPERTS/ACE/GENIUSES<br> ( question #2 )
kiruha [24]

180 - 90 -18 = 72


Answer is D 72 degrees

3 0
3 years ago
Leonardo da vinci took out A simple interest loan at 12.75% interest for 12 months. His previous balance is % 942.36. What is hi
makkiz [27]

Answer:

A = 2,384.1708

Step-by-step explanation:

A = P(1  + rt)

P = 942.36

r = 12.75%

t = 12 months

A = 942.36(1 + 12.75/100(12))

A = 942.36(2.53)

A = 2,384.1708

6 0
3 years ago
Please help mee Idk.
Ira Lisetskai [31]

Answer:

x(1.05)+4.00

Step-by-step explanation:

He bought x pens for 1.05 each and you have to add the $4 shipping fee to it

Hope this Helps

8 0
3 years ago
Read 2 more answers
Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Select three options. 6
Murljashka [212]

Answer:

the second one, ((6 x 5) x 4) +((5 x 4) x 2) = 160

the third one, ((7 x 6) x 4) + (6 x 4) x 2) = 216

the fourth one, ((8 x 4) x 4) + ((4 x 3) x 2) = 152

Step-by-step explanation:

7 0
3 years ago
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