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fiasKO [112]
3 years ago
8

Find the value. Please

Mathematics
1 answer:
IgorC [24]3 years ago
7 0
The cosine ratio is adjacent leg divided by the hypotenuse.
The hypotenuse in a right triangle is the longest side and it is opposite the right angle.
An adjacent leg is the side that has an endpoint that is at the vertex of the angle and the other endpoint is at the vertex of the right angle.

cos A = \frac{12}{20} =  \frac{3*4}{5*4} = \frac{3}{5}
ANSWER: cosA= \frac{3}{5}


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A student was given a piece of rope and told to cut it into two equal pieces, keep one piece, and pass the other piece to the ne
lidiya [134]
1/2 because you divide it by 2 every time.
5 0
3 years ago
Esmeralda cut out two paper rectangles and glued them together as shown in the figure.
lesantik [10]
The area of the composite figure is
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Hope this helps! :)
4 0
2 years ago
Deidre is picking out some movies to rent, and she is primarily interested in documentaries and children's movies. She has narro
exis [7]

Answer: 6630

Step-by-step explanation:

Given , Number of documentaries = 17

Number of children's movies = 20

Total movies = 17+20=37

Number of combinations of r things taken out of things = ^nC_r=\dfrac{n!}{r!(n-r)!}

Now, the number of different combinations of 3 movies can she rent if she wants at least one documentary

= (1 documentary+2 children's movies  , 2 documentary+1 children's movies , 3 documentary+0 children's movies)

=^{17}C_1\times^{20}C_{2}+^{17}C_2\times^{20}C_{1}+^{17}C_3\times^{20}C_{0}

=(17)\times\dfrac{20!}{2!18!}+\dfrac{17!}{2!15!}\times(20)+\dfrac{17!}{3!14!}(1)\\\\=3230+2720+680=6630

Hence, the  number of different combinations of 3 movies can she rent if she wants at least one documentary is 6630 .

3 0
3 years ago
I really need HELP I have 10 minutes to answer!!!!!
julsineya [31]

Monday and Tuesday because the second spot after the decimal point is the hundredths spot.

7 0
3 years ago
Evaluate each expression below. <br> Click on "Undefined" as needed. <br> 0/9=<br> 3÷0 =
damaskus [11]
0/9 = 0 and 3/0 = undefined. Any number divided by 0 is undefined, while 0 divided by any number is just 0.
6 0
3 years ago
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