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3 years ago

Shown is the graph for which of the following equations?

Mathematics

1 answer:

katrin2010 [14]3 years ago

8 0

Since the graph is moving positive from left to right, x is positive. so now we are left with B) and C) for our answer

now, the y intercept or b is -3 as shown in the graph

the answer is C) y= x -3

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The bacteria in an old piece of cheese is growing at a rate that can be modeled by y = 280 • 2^x. Determine which number represe

Katyanochek1 [597]

The answer is <span>C.) 2

The general form of formula is
y = a </span><span>• r^x
y - the total number of bacteria after x period of time
a - the initial number of bacteria
r - growth rate
x - period of time

Let's compare:
</span>y = a • r^x
<span>y = 280 • 2^x

Since r = 2, the growth rate is C.) 2</span>

5 0

3 years ago

Read 2 more answers

3 is added to five times number, and the result is multiplied by 4. the final result is 72. what is the number

Dima020 [189]

Answer:

The number is 3

Step-by-step explanation:

Hi,

4 ( 3 + 5x) = 72

12 + 20x = 72

20x = 60

x = 3

Hope this helps :)

7 0

2 years ago

Read 2 more answers

Sam watched television the past five nights for 42 minutes, 23 minutes, 56 minutes, 19 minutes, and 67 minutes. What was the med

guajiro [1.7K]

Answer:

42 minutes is the median amount of time

Step-by-step explanation:

The Median is the middle value of data set.

If there is "odd" number of numbers, and there are n numbers, the median is:

(n/2) + 1 th number

If there is "even" number of numbers, and there are n numbers, the median is:

Average of n/2th and (n/2) + 1 th number

Here, we have 5 numbers, so the median would be:

(5/2) + 1 th number

That is

3rd number

But, we need to arrange the numbers from least to greatest. Lets write it:

19, 23, 42, 56, 67

The third number is 42, this is the median

3 0

2 years ago

n studying the sampling distribution of the mean, you were asked to list all the different possible samples from a small populat

Mashutka [201]

The Total outcome with replacement will be given by ,3² = 9, the mean of the samples will be 2 , 4.5 , 3 , 7 , 4

Mean predicts the central tendency of a data set , It is determined by the ratio of sum of all the numbers to the total numbers in the data set.

On the basis of given data

The number given is 2,4,7

Size of the sample = 2 with replacement

The Total outcome with replacement will be given by

3² = 9

Possible outcome can be

2,2 2,4 2,7 4,4 4,2 4,7 7,7 7,2 7,4

The sample mean can be calculated as

(a+b)/2

(2+2)/2 = 2

similarly the mean of the samples will be 2 , 4.5 , 3 , 7 , 4

To know more about Mean

brainly.com/question/521501

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8 0

1 year ago

It takes 23 minutes for 6people to paint 6 walls.

Step2247 [10]

It would take 9 people 34.5 minutes to paint 9 walls.

23 divided by 6 equals 3.83. That is how many minutes it takes one person to paint one wall. Multiply 3.83 by 9 and you get your answer, 34.5 minutes.

5 0

3 years ago