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nikitadnepr [17]
3 years ago
14

Find Side BC and round to the nearest tenth of a decimal

Mathematics
2 answers:
wel3 years ago
7 0

Answer:

17.0

Step-by-step explanation:

If you take the sin(39) or cos(51), it is equal to BC/27. Multiply by 27 on both sides to get 27cos(51) or 27sin(39)= x. Plug into the calculator, and voila.

saw5 [17]3 years ago
7 0
17.0 is your answer.
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Find the 21st term of the geometric sequence that begins 2,6,18,54,...
GenaCL600 [577]

Answer:

6973568802

Step-by-step explanation:

I memorized the equation: A(n) = A(1)*d^(n-1).

You can plug into the equation A(21) = 2*3^20, which can be solved to 6973568802. (I solved this step through a calculator by finding 3^20, then multiplying that by 2 to get 6973568802.

Hope this helps!

4 0
3 years ago
Read 2 more answers
Help please. I just don’t know
Bas_tet [7]

I think it’s C because if you do 24 plus 190 you get 214

3 0
4 years ago
Can u guys pls help me on this question and pls explain how u got the answer
pychu [463]

Answer:

96 in²

Step-by-step explanation:

the bottom area is 6x6 = 36 in²

each of the 4 sides are 6x5x0.5 = 15 in²

4(15) + 36 = 96 in²

6 0
3 years ago
#21-24. <br> Finding the missing sides and angles of triangles
stellarik [79]
#21: (4•4) + (7•7)= (c•c)
16+49= (c•c)
65=(c•c)
_/65= c

#22: 22+90= 112
180-112= 68
68

#23: (3.5•3.5) + (4.7•4.7) = (c•c)
12.25 + 22.09= (c•c)
34.34= (c•c)
_/34.34= c

#24: 22+90= 112
180-112= 68
68
7 0
4 years ago
3. It took Ellie 4 hours to paddle her canoe 10 km upstream. After a
Gnoma [55]

Answer: A) 2.5 km/ hour

You divide 10/4 and get 2.5, so 2.5km an hour.

B) 6.25 km/ hour

You have 2.5km/ hour plus 10km/ hour OVER 2. This would equal 12.5 km over 2

You then get 6.25 from doing 12.5/2

4 0
3 years ago
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