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Burka [1]
3 years ago
14

Write the event as a set of outcomes. We flip three coins and obtain more tails than heads.

Mathematics
1 answer:
Ket [755]3 years ago
5 0
We start by listing the outcome of flipping two coins. The first table shows the outcomes HH, HT, TH, and TT. These outcomes then become the input combined with the third coins, as shown in the second table.

We have 8 outcomes in total: HHH, HHT, HHT, TTH, HHT, HTT, TTH, and TTT

The probability that we obtain more tails than heads is 4/8

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Gina is shopping for a new bicycle. The price of the bicycle is $300 and there is a 8% sales tax. Gina wants to know the total p
faust18 [17]

Answer:

Sales amount = $ 300.08

Step-by-step explanation:

Sale amount = selling price + sales tax

Here selling price = $300

sales tax = 8 %

sale amount = 300 + 8%

           = 300 + \frac{8}{100}

            =( 300 ×100 + 8 )÷100

          = (30000 + 8 ) ÷ 100

           = 30008 ÷ 100

            =$ 300.08

Sales amount = $ 300.08

8 0
3 years ago
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I don't get this question lol
Papessa [141]
Multiply the x values by -1/2, and then add three, that will give you the y values
7 0
3 years ago
Help please, I attached the question. Is it a!? <br> 
AVprozaik [17]

Answer:

A

Step-by-step explanation:

Recall that for a quadratic equation of the form:

0=ax^2+bx+c

The number of solutions it has can be determined using its discriminant:  

\Delta = b^2-4ac

Where:

  • If the discriminant is positive, we have two real solutions.
  • If the discriminant is negative, we have no real solutions.
  • And if the discriminant is zero, we have exactly one solution.

We have the equation:

2x^2+5x-k=0

Thus, <em>a</em> = 2, <em>b</em> = 5, and <em>c</em> = -<em>k</em>.

In order for the equation to have exactly one distinct solution, the discriminant must equal zero. Hence:

b^2-4ac=0

Substitute:

(5)^2-4(2)(-k)=0

Solve for <em>k</em>. Simplify:

25+8k=0

Solve:

\displaystyle k = -\frac{25}{8}

Thus, our answer is indeed A.

3 0
3 years ago
Read 2 more answers
PLEASE HELP, ITS DUE VERY SOON
VLD [36.1K]

Answer:

30

Step-by-step explanation:

90+2x+x=180

3x=90

x=30

5 0
3 years ago
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What is the solution to the system of equations of linear equations 2x + 4y = 38 and 10x + 3y = 105
nata0808 [166]
<span>A) 2x + 4y = 38
B) 10x + 3y = 105
Multiplying A) by -5
A) -10x -20y = -190 then adding it to B)
</span><span>B) 10x + 3y = 105

-17y = -85
y = 5
x = 9


</span>
6 0
3 years ago
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