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Vinvika [58]
4 years ago
12

Probability if you toss a coin 4 times, how many different sequences of tosses will give exactly 3 heads and 1 tail or exactly 1

head and 3 tails?
Mathematics
1 answer:
denis-greek [22]4 years ago
5 0
3 H and 1 T l:- number of sequences = 4P3 = 4*3*2*1 / 3*2*1  = 4

Similarly for 3T and 1 H  there are also 4 


Total = 8 (answer).
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Find the missing terms in the equation so that it is true. b (3x−5)^2=(? + ?? +25)
igor_vitrenko [27]

Answer:

9x^2 and -30x

Step-by-step explanation:

Basically, what we want to do is expand out (3x - 5)^2, which is the same as (3x - 5)(3x - 5).

Use FOIL (first, outer, inner, last):

- the first terms are 3x and 3x, so multiply those together: 3x * 3x = 9x^2

- the outer terms are 3x and -5, so multiply those: 3x * (-5) = -15x

- the inner terms are -5 and 3x, so multiply those: (-5) * 3x = -15x

- the last terms are -5 and -5, so multiply those together: (-5) * (-5) = 25

Add all these together:

9x^2 + (-15x) + (-15x) + 25

9x^2 - 30x + 25

The missing terms are thus 9x^2 and -30x.

7 0
3 years ago
Read 2 more answers
What are the coordinates of the point on the directed line segment from (3, -3) to
erastova [34]

Answer:

  • (5.5, 2)

Step-by-step explanation:

<u>Points given:</u>

  • (3, -3) and  (7,5)

<u>Partition ratio: </u>

  • 5 to 3

<u>Formula for the point:</u>

  • x = x1 + a/(a+b)×(x2 - x1)
  • y = y1 + a/(a +b)×(y2 - y1)

<u>So the points are:</u>

  • x = 3 + 5/(5+3)×(7-3) = 3 + 5/8×4 = 5.5
  • y = -3 + 5/8×(5 - (-3)) = -3 + 5/8×8= 2
7 0
3 years ago
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What is the volume of a hexagonal pyramid with a base area of 64 square mm and a height of 8mm? 512 cubic mm 170.6 cubic mm 256
andreev551 [17]

Answer:

The answer is 170.6 cubic mm

Step-by-step explanation:

5 0
4 years ago
What is the estimate of 95×17
rusak2 [61]
The estimate is 1,615
8 0
3 years ago
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PLEASE HELP!!!!
anzhelika [568]
The answer would be A. The triangle with the 70 seems to be isosceles and that means that two of the angles equal 70. 70+70=140. Subtract 140 from 180 to find the third angle because every triangle has a total of 180 degrees. Due to the fact that x and the 40 degrees are on the same line, they will equal 180 degrees. So, 180-40=140. X=140. I hope this helps
7 0
3 years ago
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