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2 years ago

Write 25.59 in scientific notation

Mathematics

2 answers:

ad-work [718]2 years ago

7 0

Answer:

2.559 × 10 to the 1st power

Step-by-step explanation:

using a SNC

motikmotik2 years ago

4 0

Answer:

2.559 * 10^1

Step-by-step explanation:

Rules of scientific notation (that I always remember)

- the number must be between 1 and 9

- if number gets smaller, exponent gets bigger; if number gets bigger, exponents gets smaller

25.59 is bigger than 9 so we move the decimal one place value to the left

and the number gets smaller meaning the exponent increases

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A community sponsored a charity square dance where admission was $3 for adults and $1.50 for children. if 168 people attended th

Korvikt [17]

Okay, we need two equations for this:
a will represent adults, and k, kids
a + k = 168
a = 168 - k
300a + 150k = 43200
Replace a:
300(168-k) + 150k = 43200
50400 - 300k + 150k = 43200
-150k = -7200
15k = 720
k = 48
168 - 48 = 120
46 children and 120 adults attended

7 0

4 years ago

A back-to-back stem-and-leaf plot compares two data sets by using the same stems for each data set. Leaves for the first data s

tester [92]

The true statements are:

At Law Firm A, the lowest salary was $90,000 and the highest salary was $203,000
At Law Firm B, the lowest salary was $90,000 and the highest salary was $195,000
There are 30 lawyers in Law Firm A, and 32 lawyers in Law Firm B

<h3>How to calculate the lowest salaries</h3>

To calculate the lowest salaries, we simply consider the smallest stem and the smallest leaf of both plots.

From the figure, we have the following highlights

The least stem and leaf of both Law Firms plot are 90 and 0

Hence, the lowest salary of both law firms is $90,000

<h3>How to calculate the highest salaries</h3>

To calculate the highest salaries, we simply consider the highest stem and the highest leaf of both plots.

From the figure, we have the following highlights

The highest stem and leaf of Law Firm A are 20 and 3
The highest stem and leaf of Law Firm B are 19 and 5

Hence, the highest salary of law firm A is $203,000, while the highest salary of law firm B is $195,000

<h3>The number of lawyers in both firms</h3>

This is the number of leaves in both plots

Hence, there are 30 lawyers in Law Firm A, and 32 lawyers in Law Firm B

Read more about stem and leaf plots at:

brainly.com/question/3581001

3 0

3 years ago

What is<br> 5 1/6 - 5 1/2

Ymorist [56]

Answer:

1/3

Step-by-step explanation:

51/6 = 51/6

51/2= 5 3/6

= 2/6

6 0

3 years ago

Read 2 more answers

Which number is a prime number?

Nesterboy [21]

Answer:

Step-by-step explanation:

9*7=63

13*5=65

23*3=69

5 0

3 years ago

Read 2 more answers

From a random sample of 16 people in a jail, the number of days remaining in each their sentences was noted. The 16 people have

olasank [31]

Answer:

The 95% confidence interval for the mean remaining sentence of all people in the jail is between 628.5 days and 661.5 days.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 16 - 1 = 15

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 15 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.95}{2} = 0.975$ . So we have T = 2.1315

The margin of error is:

$M = T\frac{s}{\sqrt{n}} = 2.1315\frac{31}{\sqrt{16}} = 16.5$

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 645 - 16.5 = 628.5 days

The upper end of the interval is the sample mean added to M. So it is 645 + 16.5 = 661.5 days

The 95% confidence interval for the mean remaining sentence of all people in the jail is between 628.5 days and 661.5 days.

3 0

3 years ago