Which expression equals a number that is NOT a rational number?

Write an equation in point-slope form for each line (If possible please show work)

UkoKoshka [18]

Answer:

y - 1 = -1(x + 1)

Step-by-step explanation:

I found where these points were on the graph. The slope of the line is -1. I used the x and y values from the points and the slope to make the equation above.

Take the y-value of one point and subtract it from y. Do the same thing to the x-values.

By the way, I used the second point to make the equation, but either point could have been used.

7 0

3 years ago

Can anyone give a Thrall explain ERATOSTHENES’ SIEVE

gulaghasi [49]

Answer:

See below

Step-by-step explanation:

The sieve of Eratosthenes is a stepwise method for finding all prime numbers up to a given number n.

Assume that you want to find all the prime numbers between 1 and 100.

Step 1.

Create a square grid with numbers from 1 to 100.

You will be finding numbers in the grid that are composite (not prime) and discarding them. The remaining numbers are the primes.

Step 2.

Mark 1, because it is not a prime.

Step 3.

2 is prime. Mark all multiples of 2, starting from 4 (green in the image below).

Step 4.

3 is prime. Mark all multiples of 3, starting from 9 (blue)

Step 5.

4 is composite, so, mark all multiples of 5, starting from 25 (orange).

Step 6.

6 is composite, so, mark all multiples of 7, starting from 49 (purple).

Step 7.

8, 9, and 10 are composite, and 11² > 100, so we can stop.

All the unmarked numbers are the prime numbers between 1 and 100:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97.

6 0

3 years ago

BRAINLIEST AND 100 POINTS! WILL REPORT IF WRONG

Stells [14]

Answer:

You didn't post any choices so attached is the box plot:

4 0

3 years ago

The boxplot below shows salaries for CPAs and Actuaries in a town. 30 40 50 60 70 80 90 100 Salary (thousands of $) Actuary CPA

GuDViN [60]

Answer: 75%

Step-by-step explanation:

In order to answer this question, we have to know the meaning of a box plot. Boxplots are especially useful in statistical analysis and gives us a meaningful range of values. A box plot consists of 2 shapes, which are the box part and the extended lines. The short sides of the box and the vertical line in the middle of the box represent a certain percentage of the values. The vertical line in the boxplot is the median of your dataset. For example, according to the shape given in the question, the median value for CPA's is 50 and this is closer to the left side of the box. This means that the first half ogf the dataset (when ranked from the smallest to the greatest) is closer to each other. The sides of the box represent the values at the 25% and 75% of the values respectfully.

For example, if we have 100 values, we rank them in order and the 25th value corresponds to the left side of the boxplot (named first quartile), 50th value (which is also the median) corresponds the vertical line in the box and and the 75the value corresponds to the right side of the box (named third quartile).

The extended arms are calculated as accordingly: IQR=(3rd quartile value-1st quartile value). Left extended arm is first quartile-1.5*IQR and right extended arm is third quartile+1.5*IQR. However, this information is not directly related to this question.

Now, this question should seem simpler. The median salary of CPA is 50 and this is equal to left side of the Actuary boxplot, which corresponds to the 25% of actuaries. As a result, CPA median salary is less than 75% of the Actuaries (100%-25%).

5 0

3 years ago

What is the ratio to 46 pull ups in two minutes

Ann [662]

Wouldn’t it be 46:2 and also 23:1?

3 0

2 years ago

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