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Verdich [7]
4 years ago
12

lynn and dawn tossed a coin 70 times and got heads 44 times. what is the experimental probability of tossing heads using lynn an

d dawns results?
Mathematics
1 answer:
Lana71 [14]4 years ago
3 0

Answer:

The experimental probability of tossing heads using lynn and dawns is \frac{22}{35}.

Step-by-step explanation:

It is given that lynn and dawn tossed a coin 70 times and got heads 44 times.

Total outcomes = 70

Favorable outcomes = 44

The experimental probability of tossing heads using lynn and dawns is

P=\frac{\text{Favorable outcomes}}{\text{Total outcomes}}

P=\frac{44}{70}

P=\frac{22}{35}

Therefore the experimental probability of tossing heads using lynn and dawns is \frac{22}{35}.

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Answer:

Write the repested multiplication in exponential form then the only way an exponentiation can be 0 is when the base equals 0 then move the constant to the right-hand side and change its sign then your answer is x=-8

Step-by-step explanation:

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3 years ago
How? (2x^2 - 3x - 4)(x + 7)<br>​
lidiya [134]

Answer:

2 {x}^{3}  +  11{x}^{2}  - 25x - 28

Step-by-step explanation:

Using foil method, Multiply the first term

2 {x}^{2}  \times x = 2 {x}^{3}

Next, Multiply the Outer term in each parenthesis. (2x^2 and 7

2 {x}^{2}  \times 7 = 14 {x}^{2}

2 {x}^{2}  \times 7 = 14 {x}^{2}  \:  \:  \: 3x \times  - x =  - 3x

Then, Multiply the Inner Terms (-3x,-4,7) in each parenthesis

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Then multiply the last term (-4 and 7).

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Combine it you have

2 {x}^{3}  + 14 {x}^{2}   - 3 {x}^{2}  - 21x - 4x - 28

which simplify to

2 {x}^{3}  + 11 {x}^{2}  - 25x - 28

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Step-by-step explanation:

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