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Ivenika [448]
2 years ago
8

Which event has a probability of 1/2? Select all that apply.

Mathematics
1 answer:
Ymorist [56]2 years ago
4 0
C, E, and F have 50 50 chance
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??? Please help vcyvhxrgjvuvrx
Llana [10]

Answer:

  1. 61, 61, 62, 64, 64, 66, 69, 69, 70, 72, 73, 74, 78, 78
  2. 69
  3. 64
  4. 73
  5.  

<---------------------------------------------------------------------------------------------------------->

   10          20         30        40        50        60         70         80        90        100

                                                                       

                                                                         ×--×-×-----×-----×

7 0
2 years ago
How many phone numbers are possible in the (770) area code if: For the form ABC-XXXX, A is restricted to numbers 2-9. B, C, and
weqwewe [10]

Answer:

c.7,999,999

Step-by-step explanation:

The phone number is of the form ABC - XXXX

A can be any number from 2 - 9. This means number of possible values for A are 8.

The rest of the places B,C and X can be any digit from 0 - 9. This means there are 10 possible values for each of these.

Since, value to A can be assigned in 8 ways, and to the rest of the 6 positions in 10 ways, according to the fundamental rule of counting, the total number of possible phone numbers that can be formed will be equal to the product of all the individual ways:

Total possible phone numbers = 8 x 10 x 10 x 10 x 10 x 10 x 10

Since, 1 of the given number: 867-5309 is not used, the total possible phone numbers will be:

Total possible phone numbers = 8 \times 10^{6} - 1 = 7999999

Hence, option C: 7,999,999 give the correct answer.

6 0
3 years ago
The scale of a map is known to be 1: 500 000. Find the actual distance (in km) between a mall and the bus interchange if the rep
Evgen [1.6K]

Step-by-step explanation:

when the scale says 1:500000, then that means 1 unit in the map corresponds to 500000 units in reality.

and so, 3.2 cm on the map are

3.2 × 500000 cm in reality.

3.2 × 500000 = 1,600,000 cm = 16,000 m = 16 km

7 0
2 years ago
What is the volume of the prism? Use the formula V equals B h. Enter the answer in the box.
MakcuM [25]

Answer:

29.4\ cm^3

Step-by-step explanation:

b = 4 × 3.5 = 14 cm²

h = 2,1 cm

then

V=b\times h

   =14\times2.1

   =29.4\ cm^3

7 0
2 years ago
Read 2 more answers
a silkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their
Scorpion4ik [409]

Answer:

Possible lengths of the silk fibre 'x' are 100, 75, 60, 50 and 30 yards respectively.

Step-by-step explanation:

Let the length of the silk fiber = x yards.

Let the number of silk fibres = a.

It is given that the silk fibers between 3 to 10 yards are combined to form a silk thread of 300 yards.

So, we get the equation,

ax=300, where 3\leq a\leq 10

i.e. x=\frac{300}{a}, 3\leq a\leq 10

So, the possible values of 'a' are 3, 4, 5, 6 an 10.

Thus, the possible lengths of the silk fibre 'x' are 100, 75, 60, 50 and 30 yards respectively.

3 0
2 years ago
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