Pleaseeee helpp which one is it and whyyyy!!!!

this stem and leaf plot shows the number of text messages 10 people sent yesterday. whatis the total number of text messages the

Rudiy27

To find the total number of text messages sent, you will use the stem-n-leaf plot to create a data set of all the numbers of texts sent.

To read a stem-n-leaf plot you will use the number on the left as the tens place and each number to the right of it creates a new number in the data set.

See the key for help!

Here is the list of the all the data:

0, 0, 7, 9, 10, 10, 15, 20, 23, 32

To find the total number of text messages sent, add these together.

The answer is 126 text messages.

3 0

3 years ago

15 points and crown solve by factoring (x+6)(2x-5)=0 I am confused

Reika [66]

Remember, in order for this equation to be true either one of the polynomials has to equal 0
So:

-> x+6 = 0

x=-6

-> 2x-5 = 0

2x= 5

x= 5/2

So the answer is x=-6 and x= 5/2.

Hope this helps!

7 0

3 years ago

Doctors can use radioactive chemicals to treat some forms of cancer. The half life of a certain chemical is 7 days. A patient re

RoseWind [281]

Answer:

5 millicuries

Step-by-step explanation:

Half life is 7 days which means it will be at 10 millicuries if we half that again for another 7 days then it will be 5.

6 0

3 years ago

Suppose a horticulturist measures the aboveground height growth rate of four different ornamental shrub species grown in a green

torisob [31]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The decision is to reject the null hypothesis at a significant level of significance $\alpha = 0.05$ There is sufficient evidence to conclude that at least one of the population mean is different from at least of the population

Step-by-step explanation:

From the question we are told that the claim is

The mean growth rates of all four species are equal.

The null hypothesis is

$H_o : \mu _1 = \mu_2 = \mu_3 = \mu_4$

Th alternative hypothesis is

$H_a: at \ least \ one \ of \ the \ means \ is \not\ equal$

From question the p-value is $p-value = 0.015$

And since the $p-value < \alpha$ so the null hypothesis will be rejected

So

The decision is to reject the null hypothesis at a significant level of significance $\alpha = 0.05$ There is sufficient evidence to conclude that at least one of the population mean is different from at least of the population

7 0

3 years ago

Students are selling candy bars to raise money for a class trip. The number of candy bars sold image, and the amount of money ra

storchak [24]

Answer:

B

Step-by-step explanation:

Because you divide b to e

1.3

8 0

2 years ago