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Andrej [43]
3 years ago
7

A. Dos números enteros positivos cuya diferencia sea 42

Mathematics
1 answer:
vivado [14]3 years ago
4 0

Answer:

ne hamla que estas no habla espanol

Step-by-step explanation:

que

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You make $500 per day. How much money will you make per year? (There are 250 working days in a year).
Gennadij [26K]

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125000

Step-by-step explanation:

500x 250 = 125000

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Step-by-step explanation:

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<span>3 - (2 - 8)
= 3 - 2 + 8
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In short, Your Answer would be Option B

Hope this helps!</span>
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3 years ago
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9sin(2x) sin (x) = 9cos(x)
nikdorinn [45]

Answer:

\sin(2x)  = 2 \sin(x)  \cos(x)  \\ 9( 2 \sin(x)  \cos(x) ) \sin(x)  = 9 \cos(x)  \\ 18 { \sin}^{2} (x)9 \cos(x)  - 9 \cos(x)  = 0 \\ 9 \cos(x) (2{ \sin}^{2} (x) - 1) = 0 \\ 9 \cos(x) = 0 \: or \: 2{ \sin}^{2} (x) - 1 = 0 \\  \sin(x)  =  \pm \frac{1}{ \sqrt{2} }  \\  \cos(x)  = 0 \\ x =  { \cos}^{ - 1} (0) \\ x =  \frac{ \pi}{2}  = 90 \degree \\ x = \frac{ \pi}{2} + 2\pi \: n \:  \forall \: n \:  \in \:  \Z  \\ = 90 \degree +  360\degree\: n \:  \forall \: n \:  \in \:  \Z \\  =  \pm\frac{ \pi}{4}  \pm2\pi \: n \:  \forall \: n \:  \in \:  \Z \\ x =  \pm45\degree  \pm 360\degree\: n \:  \forall \: n \:  \in \:  \Z

8 0
2 years ago
18 is what percent of 20?<br> O A. 90%<br> O B. 18%<br> O C. 10%<br> O D. 95%<br> RENA
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A. 90%
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