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3 years ago

Systems of equations have one solution.. . Always. . Sometimes. . Never

1 answer:

4 0

Systems of equations have one solution SOMETIMES.

There are equations wherein the lines intersect.
There are equations wherein the lines do not intersect so no solutions.
Thus, the answer is sometimes.

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A communications channel transmits the digits 0 and 1. However, due to static, the digit transmitted is incorrectly received wit

m_a_m_a [10]

Answer:

The probability that the message will be wrong when decoded is 0.05792

Step-by-step explanation:

Consider the provided information.

To reduce the chance or error, we transmit 00000 instead of 0 and 11111 instead of 1.

We have 5 bits, message will be corrupt if at least 3 bits are incorrect for the same block.

The digit transmitted is incorrectly received with probability p = 0.2

The probability of receiving a digit correctly is q = 1 - 0.2 = 0.8

We want the probability that the message will be wrong when decoded.

This can be written as:

$P(X\geq3) =P(X=3)+P(X=4)+P(X=5)\\P(X\geq3) =\frac{5!}{3!2!}(0.2)^3(0.8)^{2}+\frac{5!}{4!1!}(0.2)^4(0.8)^{1}+\frac{5!}{5!}(0.2)^5(0.8)^0\\P(X\geq3) =0.05792$

Hence, the probability that the message will be wrong when decoded is 0.05792

4 0

3 years ago

The relationship between the amount of data downloaded d, in megabytes, and the time t, in seconds, after the download started i

svetoff [14.1K]

Answer: A, C, F, there’s 4 but I only know 3

6 0

3 years ago

Read 2 more answers

2(x + 1 ) - 3(x + 5) ≥ 0 please solve!!

djverab [1.8K]

Answer:

Step-by-step explanation:

2x + 2 -3x -15 > 0

-x-13 > 0

-x > 13

Answer: x < -13

8 0

3 years ago

Read 2 more answers

You estimate the distance from your house to your school to be 1.6 miles. The actual distance is 1.9 miles. Find the percent err

Bezzdna [24]

To find percent error you use the following formula:
$% Error = \frac{final value - given value}{given value}$
% error = (1.6 - 1.9)/1.9 * 100% = 15.79%

5 0

3 years ago

The amount of time it takes an ice cube to melt varies inversely to the air temperature. At 30 degrees Celsius, the ice will mel

Anon25 [30]

Answer:

hope this helps A block of ice melts in 2.5 hours when the temperature is 54 degrees.

Step-by-step explanation:therefore you can increase 2.5 and decrease 54 to whatever number you need

4 0

3 years ago