MATHEMATICS COLLEGE

Is (0,5) a solution to the equation y=2x?​

Answers

Answer 1
Answer:

Answer:

No.

Step-by-step explanation:

If (0,5) is a solution to y=2x, then 5=2(0) has to be true.

It is not because 5=2(0) is not true.

2(0)=0 and 0 is definitely not 5.

An example of a point on y=2x is (5,10) since 10=2(5) is true.
Answer 2
Answer:

Answer:

No

Step-by-step explanation:

The coordinate points are x and y.

So, in this case, 0 would be x and 5 would be y.

We can substitute those numbers into our equation to get:

5=(2)(0)

2 multiplied by 0 equals 0.

0 CANNOT equal 5.

Therefore, your answer is NO, (0,5) isn't the solution to the equation y=2x.

-Stay smart, stay golden :)

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The sum of a number and 2 times its reciprocal is -3

Suppose you are a chemist who is trying to synthesize a specific compound. You have been working with a new technique and you think that this process can turn 60% of the input compounds into the desired synthesized compound, and want to attempt the process enough times to get an estimate that is within .04 of the true proportion that is converted. How many times should you execute the process to get the desired precision

Answers

Answer:

The sample size 'n' = 576

576 times should you execute the process to get the desired precision

Step-by-step explanation:

Explanation :-

Step(i)

Given data the process can turn 60% of the input compounds into the desired synthesized compound.

Sample proportion ' p' = 60% = 0.60

Given data the estimate within 0.04 of the true proportion that is converted

The margin of error of the true population proportion

                      M.E = 0.04

Step(ii)

The margin of error of the true population proportion is determined by

                M.E = ( Z_(0.05) √(p(1-p)) )/(√(n) )

               0.04 = ( 1.96 √(0.60(1-0.60)) )/(√(n) )

              √(n) = ( 1.96 √(0.60(1-0.60)) )/(0.04 )    

      on calculation, we get

             √(n) = 24

squaring on both sides ,we get

             n = 576

Final answer:-

The sample size 'n' = 576

576 times should you execute the process to get the desired precision

The number of bacteria at the beginning of an experiment was 30 and the bacteria grow at an hourly rate of 1.4 percent. Using the model given by () = 0e, estimate the number of bacteria, rounded to the nearest whole number after 20 hours.

Answers

Answer:

The estimated number of bacteria after 20 hours is 40.

Step-by-step explanation:

This is a case where a geometrical progression is reported, which is a particular case of exponential growth and is defined by the following formula:

n(t) = n_(o)\cdot \left(1+(r)/(100) \right)^(t)(1)

Where:

n_(o) - Initial number of bacteria, dimensionless.

r - Increase growth of the experiment, expressed in percentage.

t - Time, measured in hours.

n(t) - Current number of bacteria, dimensionless.

If we know that n_(o) = 30, r = 1.4 and t = 20\,h, then the number of bacteria after 20 hours is:

n(t) = 30\cdot \left(1+(1.4)/(100) \right)^(20)

n(t) \approx 39.616

n(t) = 40

The estimated number of bacteria after 20 hours is 40.

Can some tell me how to do these

Answers

Never forget propertie of indices

Charissa is eating out with friends, and it is her turn to pay the gratuity. The bill for the food is 26.50. If she plans to tip the 20%, what should she pay?

Answers

If she plans to tip the 20%. Then the amount of tip will be $5.3.

What is the percentage?

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

Charissa is eating out with friends, and it is her turn to pay the gratuity. The bill for the food is $26.50.

If she plans to tip the 20%. Then the amount of tip is given as,

Amount of tip = 20% of $26.50

Amount of tip = 0.20 x 26.50

Amount of tip = $5.3

If she plans to tip the 20%. Then the amount of tip will be $5.3.

More about the percentage link is given below.

brainly.com/question/8011401

#SPJ6

Answer:

$5.30

Step-by-step explanation:

Solve for x. x+27=−12

Answers

x + 27 = -12
subtract 27 from both sides
x = -12-27
x = -39
-39 is the correct answer

22 - x/2 =14 ........

Answers

Answer:

x=16

Step-by-step explanation:
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