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Fynjy0 [20]
3 years ago
10

I got most of them but I need help on those 3

Mathematics
1 answer:
Vadim26 [7]3 years ago
3 0
Using Pythagoras:-

x^2  = 6^2 + (sqrt18)^2
       = 36 + 18 = 54

x = sqrt54  =  3 sqrt6
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Law of sines?? side c=22 side a=16 side b= 21 solve for angle c??? help
den301095 [7]

Answer:

Angle C measures:  71.52^o

Step-by-step explanation:

When you know the length of the three sides of the triangle and not a single angle, the law of sines is of no use. You need to use the law of cosines. In your case, since you want to find angle "C", you use the following;

c^2=a^2+b^2-2\,a\,b\,cos(C)\\2\,a\,b\,cos(C)=a^2+b^2-c^2\\cos(C)=\frac{a^2+b^2-c^2}{2\,a\,b} \\cos(C)=\frac{16^2+21^2-22^2}{2\,(16)\,(21)}\\cos(C)=0.3169643\\C=arccos(0.3169643)\\C=71.52^o

4 0
4 years ago
What is the domain and range ​
Svetach [21]

Answer:

Domain is the x values

Range is the y values

I hope this is good enough:

5 0
3 years ago
how many different ways can a coach select the captain and co-captain of a team from a group of 20 people
Lisa [10]
20 different ways i think
7 0
3 years ago
What is 6 squared divided by 2(3) + 4?
prohojiy [21]
6^2/2(3)+4=36/2(3)+4=18(3)+4=54+4=58 \\ \\ or \\ \\ \frac{6^2}{2(3)+4} = \frac{36}{6+4}= \frac{36}{10} =3.6 \\  \\ or \\  \\  \frac{6^2}{2(3)}+4 = \frac{36}{6}+4=6+4=10

It all depends on how the equation is written.
4 0
3 years ago
Read 2 more answers
HELPPPPPPPPPPPPP and please don't put the "link" i really need answers!!!
Roman55 [17]

Answer:

<u>The first option is </u>

  • A(x) = 10000(1.05)ˣ

<u>The second option is:</u>

  • B(0) = 1000
  • B(1) = 1100
  • The ratio is 1.1 and the zero term is 1000

<u>The equation for this option is:</u>

  • B(x) = 1000(1.1)ˣ

Now, which option is better?

It depends on the number of x. It is assumed the genie is offering money or similar reward.

For the values of x below 50 option A is better and option B is much better for x > 50.

See the graph in the attachment, where green line represents the option A and red line is option B.

7 0
3 years ago
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