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RideAnS [48]
4 years ago
13

Juan is going to flip a coin 2 times. What is the fractional probability that it will be two heads

Mathematics
1 answer:
sertanlavr [38]4 years ago
4 0

Answer:

The fractional probability of getting 2 heads is 1/4.

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11111nata11111 [884]
D.2y+3 i think is the answer

6 0
3 years ago
Show that (3cosx+sinx) (cosx+3sinx)=3+5sin2x
givi [52]
(3 \cos x+ \sin x) (\cos x+3\sin x) = \\  \\  =  3 \cos^{2} x + 9 \cos x \sin x + \cos x \sin x + 3 \sin ^{2} x =  \\  \\  = 10 \cos x \sin x +3 \underbrace{(\sin ^{2} x + \cos ^{2} x)}_{=1}   =\boxed{5 \sin x + 3  }

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\sin (2x) = 2 \cos x \sin x

5 0
3 years ago
Solve the system of equations by substitution.<br> y = 5x - 13<br> 4x + 3y = 18<br> The solution is
Rudik [331]

Answer:

x=3 and y=2

Step-by-step explanation:

1.) 4x+3(5x-13)=18

expand into 4x+15x-39=18

18+39= 57

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57/19= 3 so x=3

substitute 3 into y= 5x - 13

and you get 2 so y=2

3 0
3 years ago
Help please please help ASAP ASAP please I need help with this ASAP ASAP please
skelet666 [1.2K]

Answer:

times 5/4

Step-by-step explanation:

7 x = 35/4

x = (35/4) / 7

x = (35/4) x (1/7)

x = 35/28

x = 5/4

8 0
3 years ago
How do I turn mix numbers into Improper fraction
Daniel [21]
You multiply the whole number and the <span>denominator ( the bottom number in the fraction) and then add the answer of that to the numerator. Hope that helps! :) </span>
4 0
3 years ago
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