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Vlada [557]
3 years ago
14

Someone please help me to solve this questions...​...

Mathematics
1 answer:
wlad13 [49]3 years ago
6 0

Answer:

1) Event A = 2/3

   Event B = 1/2

2) 1/2

Step-by-step explanation:

1)

Event A :

No. we need on dice = 4

Total numbers on dice = 6

Hence sample space of the event = 6

P( getting 4) = 4/6 = 2/3

Event B :

A coin has a head & a tail.

Hence sample space of the event = 2

But as we need tail only ,

P ( getting Tail ) = 1/2   [ if only tossed once ]

2)

Total numbers on a die = 6

Total no. of odd numbers on die = 3 (∵ 1 , 3 & 5 are odd )

Sample space of this event = 6

P (getting an odd number) = 3/6 = 1/2

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These are all related to geometry and I need help!
nydimaria [60]

SOH-CAH-TOA

sin=opp/hyp

cos=adj/hyp

tan=opp/adj

1. Sin c=opp/hyp           2. tan=opp/adj                  3. sin=opp/hyp

  sin c=8/17                        tan38°=x/16                        sin38=18/x

                                                                                   x=18/sin38; x=29.236846

4 0
3 years ago
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zaharov [31]

Answer:

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5 0
2 years ago
you have to answer 3 essay questions for an exam. there are 6 essays to check choose from. how many different groups of 3 essays
Elis [28]
According to the fundemintal counting princable the answer is 18. 
5 0
3 years ago
AB=25 , BD=4, Solve for the radius?<br> Please help!!!!!
Alex787 [66]

9514 1404 393

Answer:

  r = 14.5

Step-by-step explanation:

AD is the perpendicular bisector of chord EC, so is the diameter of the circle. The radius is half the diameter.

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4 0
2 years ago
A researcher is conducting a study of charitable donations by surveying a simple random sample of households in a certain city.
nirvana33 [79]

Answer:

H0: p ≤ 0.50

Ha: p > 0.50

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

For the case above;

Let p represent the proportion of households in the city that gave a charitable donation in the past year

The null hypothesis is that the proportion of households in the city that gave a charitable donation in the past year is not more that 0.50

H0: p ≤ 0.50

The alternative hypothesis is that the proportion of households in the city that gave a charitable donation in the past year is more that 0.50

Ha: p > 0.50

7 0
3 years ago
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