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Inessa05 [86]
3 years ago
5

A fair coin is tossed two times in succession. The set of equally likely outcomes is {HH, HT, TH, TT). Find the probability of g

etting exactly two heads.
The probability of getting two heads is
(Type an integer or a simplified fraction.)
Mathematics
1 answer:
Morgarella [4.7K]3 years ago
5 0

Answer:

1/4

Step-by-step explanation:

Two Heads = HH,

From four options one of them is HH,

So likely the answer is 1/4,

Hope this helps!

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Simplify :<br>(3÷7x+5÷4y)2​
marissa [1.9K]

Answer:

6/7x+5/2y

Step-by-step explanation:

I actually don't know

3 0
3 years ago
I really need someone to explain to me on how to solve these!! :(
HACTEHA [7]

Answer:

3.7%

Step-by-step explanation:

(p)principal=$3400

(t)time=9months=9÷12year=3÷4year

(i)interest=$94.50

(r)rate=?

we have

r%=i/(pt)

r%=94.50÷(3400×3÷4)

r÷100=94.50÷2550

r=0.37×100

r=3.7

required rate is 3/7%

5 0
3 years ago
Select the correct answer from each drop-down menu. Consider the following polynomials equations.
Zolol [24]

Answer:

Yes to all 3 questions.

Step-by-step explanation:

3x^2(x-1)  +  -3x^3+ 4x^2-2x+1

= 3x^3 - 3x^2  - 3x^3 + 4x^2 - 2x + 1

=  x^2 - 2x + 1,

So A + B is a polynomial.

3x^2(x-1)  -  (-3x^3+ 4x^2-2x+1)

= 3x^3 - 3x^2 + 3x^3 - 4x^2 + 2x - 1

= 6x^3 - 7x^2 + 2x - 1.

So A - B is also a polynomial.

3x^2(x-1)( -3x^3+ 4x^2-2x+1)

= (3x^3 - 3x^2) ( -3x^3 + 4x^2 - 2x + 1)

= -9x^6 + 12x^5 - 6x^4 + 3x^3  + 9x^5 - 12x^4 + 6x^3 - 3x^2

= -9x^6 + 21x^5 - 18x^4 + 9x^3 - 3x^2.

So A * B is a polynomial.

5 0
3 years ago
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DeAndre is 15 miles into a 51-mile backpacking trip in the wilderness. DeAndre can hike 9 miles per day. How many more days does
liubo4ka [24]

Answer:

Step-by-step explanation:

miles left to travel=51-15=36

more days required=36/9=4 days.

3 0
4 years ago
Read 2 more answers
GEOMETRY please help soon due in an hour
Deffense [45]

Answer:

The height of the tower is 310.6 ft

3 0
3 years ago
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