All categories

3 years ago

If a fair coin is tossed 11 times, in how many different ways can the sequence of heads and tails appear?

Mathematics

1 answer:

Oduvanchick [21]3 years ago

5 0

Answer:

2048

Step-by-step explanation:

Here’s an example for 2 flips: HH - HT - TT - TH. (That’s 2*2, or 2^2)

Here’s 3 flips: HHH - HHT - HTH - HTT - THH - THT - TTH - TTT. (That’s 2*2*2, or 2^3).

For 11 flips, it’s 2^11… which is 2048

You might be interested in

Please please please help

tia_tia [17]

It’s false!!! Hope this helped;)

3 0

3 years ago

Read 2 more answers

Estimate <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B80%7D%20" id="TexFormula1" title=" \sqrt{80} " alt=" \sqrt{80} " ali

Tamiku [17]

Answer:

8.9

Step-by-step explanation:

Convert √ 80 to a decimal.

8.9442719

Find the number in the tenth place 9 and look one place to the right for the rounding digit 4 . Round up if this number is greater than or equal to 5 and round down if it is less than 5 .

8 0

4 years ago

What is the product of 3.4 × 10−14 and 1.8 × 10^28?

DENIUS [597]

None of the answer matches the correct ans
(3.4×10-14)(1.8×10^28)
20(1.8×10^28)
3.6×10^29

8 0

4 years ago

Two tailors, Valentina and Laura, sit down to do some embroidery. Valentina can embroider 2 shirts per hour, and Laura can get t

mina [271]

Answer:

Valentina and Laura finished the same total number of shirts in $4$ hours.

Total number of shirts finished by Valentina $=23$

Total number of shirts finished by Laura $=23$

Step-by-step explanation:

Suppose that Valentina and Laura finished the same total number of shirts in $t$ hours.

Valentina can embroider 2 shirts per hour and Valentina has already completed 15 shirts.

Total number of shirts finished by Valentina $=2t+15$

Laura can get through 3 shirts per hour and Laura has completed 11 shirts.

Total number of shirts finished by Laura $=3t+11$

Therefore,

$2t+15=3t+11\\3t-2t=15-11\\t=4$

So,

Valentina and Laura finished the same total number of shirts in $4$ hours.

Total number of shirts finished by Valentina $=2(4)+15=8+15=23$

Total number of shirts finished by Laura $=3(4)+11=12+11=23$

6 0

3 years ago

Translate into an algebraic equation and solve.<br> Twelve more than half a number is 10.

Marizza181 [45]

Answer:

1/2×+12=10, x=-4

Step-by-step explanation:

Just trust me on this

6 0

3 years ago

Read 2 more answers