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o-na [289]
3 years ago
14

Complete the following a) 3 5 20 b) 11 25 30 6.

Mathematics
1 answer:
nasty-shy [4]3 years ago
8 0

Answer:

The answer should be B

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What is the product of 2/5 and 4/6
Aneli [31]

Answer:

\frac{2}{5}  \times  \frac{4}{6}  \\  =  \frac{4 \times 2}{5 \times 6}  \\  =  \frac{8}{30}   \\  =  \frac{4}{15}

4 0
2 years ago
Read 2 more answers
Help pleaseeeeeeeeee
Alex17521 [72]

Answer:

  • 39°
  • 27°
  • 28°

Step-by-step explanation:

1.

Hypotenuse = 32\\Adjacent = 25\\Angle\:\alpha \:=?\\Using \: SOHCAHTOA ;\\Cos \:\alpha = \frac{adj}{hyp} \\Cos \:\alpha = \frac{25}{32}\\\\\alpha = Cos^-^1\frac{25}{32} \\\alpha =38.62\\\\\alpha = 39

2.

Opposite = 8\\Adjacent = 16\\\alpha =?\\Using SOHCAHTOA\\Tan\:\alpha = \frac{opp}{adj} \\Tan\:\alpha = \frac{8}{16} \\Tan \:\alpha =1/2\\\alpha = Tan^-^11/2\\\\\alpha =26.56\\\alpha =27

3.

Hypotenuse = 41\\Opposite = 19\\\alpha = ?\\Using\: SOHCAHTOA\\Sin\:\alpha = \frac{opp}{hyp} \\Sin \:\alpha =\frac{19}{41}\\\\\alpha =Sin^-^1 (19/41)\\\\\alpha =27.6\\ \alpha =28

7 0
3 years ago
X + ky = 1
Marina CMI [18]
X + k y = 1
k x + y = 1  / * ( - k )
----------------
      x + k y = 1
- k² x - k y = - k
--------------------
x - k² x = 1 - k
x ( 1 - k² ) = 1 - k
x = ( 1 - k ) / ( 1 - k² ) = ( 1 - k ) / ( 1 - k ) ( 1 + k )
y = 1 - k( 1 - k )/( 1 - k² )
y = ( 1 - k ) / ( 1 - k² ) = ( 1 - k ) / ( 1 - k ) ( 1 + k )
a ) For  k = - 1 this system has no solution.
b ) For k ≠ - 1 and k ≠ 1, the system has unique solution:
( x , y ) = ( 1/ (1 + k) ,  1/( 1 + k ) ).
c ) For k = 1, there are infinitely many solutions.

3 0
2 years ago
A baby elephant weighs 250 lb,
Sladkaya [172]
Tons would be 0.125
and Kg would be 113.636
5 0
3 years ago
Calculate 32 percent of 133
Rasek [7]
0.32 x 133
=42.56
:) hope that helps
3 0
3 years ago
Read 2 more answers
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