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Tanzania [10]
3 years ago
15

What is the probability that you flip 4 coins and at least 2 land on tails?

Mathematics
1 answer:
Marianna [84]3 years ago
3 0
50%. Each coin has a 50% chance on landing on head and a 50% chance of landont on tails.
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The table shows the results of a survey on the number of text messages per month for people of different ages. Based on this sur
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Answer:C

Step-by-step explanation:I took the test got a

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Janet and Kyle each purchase Blu Ray discs and Cd's from Amazon. Janet buys 3 Blu ray and 2 Cd's for $58. Kyle buys 1 Blu Ray an
polet [3.4K]

Answer:

y = 20   x = 6

Step-by-step explanation:

1 (3x+ 2y = 58 ------------>  -3x + -2y = -58

1x + 2y = 46 -------------->    1x + 2y = 46  

                                              ____________

                                                -2x  =  -12

                                               -----------------

                                                -2x       -2x

                                                 x = 6

3(6) + 2y = 58

18 + 2y = 58

-18          -18                                    

------------------

       2y = 40

      -----  -----

       2y     2y

y = 20

                                               

                                           

7 0
3 years ago
For which function is f(x) equal to f-1(x)?
Readme [11.4K]
Let's solve for f.
y=f−1x
Step 1: Flip the equation.
f−x=y
Step 2: Add x to both sides.
f−x+x=y+x
f=x+y
Answer:
f=x+y
6 0
3 years ago
Bob bought 24 hockey tickets for $83. Adult tickets cost $5.50 and child tickets cost $2.00. How many child tickets did he buy?
Digiron [165]

Answer:

14 kid tickets

10 adult tickets

Step-by-step explanation:

2.00*14=28

5.50*10=55

55+28=83

8 0
3 years ago
Please help and solve; big points<br> 3/2 ∜(2(x-6)^3 )+4=16
daser333 [38]

Answer:

x ≈ 18.7

Step-by-step explanation:

This is a big equation, so let's break it down a bit.

\frac{3}{2} \sqrt[4]{(2(x-6) ^3 )} +4=16

Let's start by isolating the radical which is x.

So subtract 4 from both sides :

\frac{3}{2} \sqrt[4]{(2(x-6) ^3)}=12

Now multiply both sides by 2 to get rid of the fraction :

3\sqrt[4]{(2(x-6)^3)} = 24

Now divide both sides by 3 to get rid of the number out of the poly root :

\sqrt[4]{2(x-6) ^3}=8

Now take both sides of the equation to the power of 4 :

2x^3 - 36x^2+216x-432=4096

And lastly, solve :

x = 18.69920 which is rounded up to x ≈ 18.7

4 0
3 years ago
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