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yarga [219]
3 years ago
8

A coin is flipped 3 times what is the probability that heads appears twice

Mathematics
1 answer:
blondinia [14]3 years ago
7 0
Note that the chances of a head and a tail appear in a single toss is 1/2
(1/2)^3 =0.125
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1. Choose the description that matches the inequality. x < 1
marusya05 [52]

Answer:

A line traveling to the left with an open dot on x=1.

Explanation:

The inequality x < 1 basically means "less than 1." On number lines, the further left you go, the smaller the number becomes, and the further right you go, the larger the number becomes. So we know that because it's less or smaller than 1, then the line will be to the left. On the other hand, the inequality does not have a line under it to indicate a "less than or equal to 1," just "less than." Therefore, the dot is open. If there were a line under the inequality, then it would indicate "less than or equal to 1" and the dot would be closed.

3 0
2 years ago
Calculate the trade discount for 3030 boxes of computer paper if the unit price is ​$14.9314.93 and a single trade discount rate
zhannawk [14.2K]

Answer:

Total trade discount on 30 boxes = $201.555

Step-by-step explanation:

1 box = $14.93

And a trade discount of 45% is allowed on a single box,

Therefore, the discount on one $14.93 box will be

45% × $14.93 = $6.7185

So, if there are now 30 boxes, the trade discount on all 30 boxes will be

30 × (trade discount on one box) = 30 × ($6.7185) = $201.555

Hope this helps!

5 0
3 years ago
Which of the following tables is a relation that represents a function?
uysha [10]
The first one is not a function due to the rule that there can not be more than one x, such as there is a repeated number 1 , 2 , 1 , 4  There should not be two
x = 1 terms.

Same the same rule applies to the second option as well as the last.

Your answer is C. or the third option
x= 6, 5, 4, 1
y=6, 4, 6, 2

Hope this Helps
3 0
3 years ago
Which is an irrational number?
chubhunter [2.5K]

Answer:

√21

Step-by-step explanation:

<u><em>Irrational number:-</em></u>

An irrational number is a type of real number which cannot be represented as a simple fraction . it cannot be expressed in the form of a ratio.

Example:-

√2,√3,  ,......  

Given option

√21 is a irrational number

7 0
3 years ago
tiffany spwnt 4/7 of her money on a teddy bear if the teddy bear costs $24 how much money did she have at first
Kaylis [27]

She had 42 dollars.

(4/7 of 42 is 24 dollars)

6 0
3 years ago
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