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iris [78.8K]
2 years ago
13

How many heads would you expect if you flipped a coin twice? First, fill in the table below with the correct probabilities. Hint

: The sample space for flipping a coin twice is {HH, HT, TH, TT}. A = B = C = F
Mathematics
2 answers:
pentagon [3]2 years ago
8 0

Answer:

a= 1/4 or .25 b=1/2 or .50 c=1/4 or .25

the expected value fro the number of heads is 1.

Step-by-step explanation:

this is for edge

nata0808 [166]2 years ago
4 0

Answer:

1

Step-by-step explanation:

hope Im right!

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The phone company A Fee and Fee has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount o
IgorLugansk [536]

Answer:

y=0.2x+29

Step-by-step explanation:

Given that:

y is the total monthly of the A Fee and Fee plan.

x is the number of monthly minutes used.

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We want to obtain an equation in the form: y=mx+b

First, let us determine the slope, m

Given points (290, 87) and (980, 225):

<u>Slope</u>

m=\dfrac{225-87}{980-290} =\dfrac{138}{690}=0.2

Next, we determine the y-intercept, b.

Substituting the pair (290, 87) and m=0.2 in y=mx+b, we obtain

87=0.2(290)+b

b=87-0.2(290)=29

Therefore, our equation in the form y=mx+b is:

y=0.2x+29

8 0
3 years ago
PLEASE HELP PLEASE PLEASE
Maslowich

Answer:

  quadratic

Step-by-step explanation:

The x-values are sequential, so we can look at the y-values.

Differences from one to the next are ...

  -7, -1, 5, 11, 17

And the differences of these numbers are ...

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When <em>second</em> differences are constant, the sequence can be produced by a <em>second</em>-degree (quadratic) polynomial.

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Here, that polynomial is ...

  y = 3x² +2x -1

The regression functions of a graphing calculator can help you find the appropriate formula.

6 0
3 years ago
afer each soccer practice, scott runs 4 sprints of 20yards each. if he continues his routine how many practice will it take for
lilavasa [31]
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7 0
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Ulleksa [173]

Answer:

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Step-by-step explanation:

Each of the triangles is isosceles. Triangles opposite each other are congruent, so ∠2 is congruent to 36°.

∠2 and ∠3 are complementary, so ∠3 is 54°. Since ∠3 is congruent to ∠1, it, too, is 54°.

8 0
3 years ago
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Andru [333]
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If you subtract 8 from both sides and then divide by 30 you'll find that x=4.
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3 years ago
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