Write the expression in exponential form.
log 3^9= 2
Answers
Answer: 3^2
Step-by-step explanation:
remember logb a=n <---> a=b^n
so therefor the answer is log3 9=2 ---> 9 = 3^2
Related Questions
plssss help me with this asap D:
Answers
Answer:
A
D
Step-by-step explanation:
because first street intersect 2 and 3
...
and second street is parallel to third street
A and D,
Nothing is perpendicular as there are no right angles, 1st intersects with the others because it goes through them, and 2nd and 3rd are parallel.
7 % of 39? need too know right now.
Answers
Answer:
2.73
Step-by-step explanation:
You could just divide.
Answer:
the answer is 2.73
Step-by-step explanation:
ur welcome brah
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPP! Would love the answer as soon as possible.
Answers
86 +62= 148
X=148
Do i need to explain why you do it that way
What is the value of x?
Answer: x=148
The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.
Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside
Part A: Calculate the measures of center. Show all work. (2 points)
Part B: Calculate the measures of variability. Show all work. (1 point)
Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)
Answers
For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).
Range: The range is the difference between the largest and smallest values in the dataset.
For Mountain View School:
Range: 9 - 0 = 9
For Seaside School:
Range: 9 - 0 = 9
Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.
For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4
For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5
To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.
Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.
For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.
Part B:
For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.
For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.
Part C:
If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.
PLEASE HELP ME
Which expression correctly calculates the perimeter of the shape below?
A. 400
B. 100 + 100pi
C. 200 + 50pi
D. 200 + 100pi
Answers
don't know
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Solve the system using elimination and find the y and x coordinates
Answers
Answer:(-1,1)
Step-by-step explanation:
Answer:
Your answer is: (2,-1). I provided a picture in case you need to show your work.
HELP FAST. I WILL GIVE BRAINLIEST
On a certain hot summer's day, 540 people used the public swimming pool. The daily prices are $1.25 for children and $2.00 for adults. The receipts for admission totaled $822.75. How many children and how many adults swam at the public pool that day?
Answers
PLEASE HURRY!!!!! WORTH 25 POINTS!
Find the product.
(6 a + b ) ²
Answers
Answer: 12a + 2b im pretty sure
Step-by-step explanation:
hey so like i need help and ill mark brainliest:)
Answers
i dont know the first one and im not 100% sure if i got the second on correct.
i think its $3 .75
Answer:
slope: 3.5
y intercept: 1
the second one is 30, I Think
Step-by-step explanation: trust Me
If not rate me one star
Mark me Brainliest
A 64 ounce bottle of organic orange juice costs $14.72. What is the cost per ounce?
Answers
Answer:
0.23 is the cost per ounce.
Answer:
23 cents
Step-by-step explanation:
To see how many times 14.72 will go into 64 you divide 14.72/64 which will get you 0.23 (23¢)
zoey is using an open number line. she wants to find 232+578. which addend should she place on the number line to start? explain
Answers
Answer:
To add 232 and 578, Zoey should start by placing the smaller addend, which is 232, on the number line. She can then add the larger addend, which is 578, by counting up from 232.
Here's how Zoey can do it:
Draw an open number line and label it from 0 to 800, with tick marks for every 100 units.Mark the starting point for 232 on the number line.To add 578, Zoey can count up from 232 by 100s until she reaches 578.She can count 100, 200, 300, 400, 500, and 600, which brings her to 832.However, she only needs to add 578, so she can stop at the point on the number line labeled 810.Therefore, Zoey should place 232 on the number line to start adding 232 and 578.
Zoey should place the addend 232 on the number line to start.
What is Number Line?A number line is a straight line drawn horizontally where the numbers are placed at an equal intervals.
Number line has numbers 232 and 578 marked at different points.
In order to find the sum of these two addends, we have to place the smaller addend at the start.
Here 232 is the smaller addend
578 is the larger addend.
Start with the smaller one, 232.
Then add the larger addend to it.
Hence the addend that should be started with is 232.
Learn more about Number lines here :
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Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)
Answers
(4 x 5) ( 4 x 9)
i need help
Answers
Answer:
(20) (36) this is your answer bro
help fast??????????????????????????
Answers
Answer:
Its 20 because this is a 90 degree angle and 90-70=20
Step-by-step explanation:
Answer: hope this helps ♡
m∠ABC = 20°
Step-by-step explanation:
this is a right angle (90°) so to find m∠ABC:
m∠ABC + 70° = 90°
m∠ABC = 90° - 70°
m∠ABC = 20°
the temperature at 2 pm is 27° at 2 am the temperature has fallen to -4° what is the total difference in temperature from 2:00 pm to 2:00 am???
Answers
Answer:
The temperature difference is equal to 27-(-4)=31.
Step-by-step explanation:
Answer:
31° .
Step-by-step explanation:
we need to calculate the temperature difference between 2 pm and 2 am we can get the difference by subtracting the temperature at 2 am from the temperature at 2 pm
the temperature at 2 pm is 27°
the temperature at 2 am is -4°
the temperature difference between 2 pm and 2 am is:
27° - (-4)° = 31°
Which of the following equations is equivalent to: 4x - 2 = 38
5x = -50
x - 20 = 30
5x = 50
2x = 10
Answers
Answer:
5x = 50
Step-by-step explanation:
4x - 2 = 38
solved - x=10
5x = -50
solved - x=-10
x - 20 = 30
solved - x=50
5x = 50
solved - x=10
2x = 10
solved - x=5
Answer:
5x = 50
Hope this helps!!
Step-by-step explanation:
At the zoo, for every 666 adult camels, there are 555 baby camels. There are a total of 444444 adult and baby camels at the zoo.
Complete the table.
Original ratio Number in the zoo
Baby camels 555
Adult camels 666
Total camels
444444
Answers
Answer:
1 adult camel for every 11 baby camels, or 1:11
A bag contained 18 red marbles, 14 green marbles, and 20 blue marbles. A marble was randomly pulled, the color recorded, and then put back into the bag. This table above shows the results after 25 pulls.
What was the relative frequency of selecting a red or blue marble?
Red:8
Blue8
Green9
Answers
Number of red marbles pulled = 8
Number of blue marbles pulled = 8
Total marbles pulled = 25
Relative Frequency = Total Frequency / Total number of data values
Relative Frequency of red marble = 8/25
= 32%
Relative Frequency of blue marble = 8/25
= 32%
Learn more about Relative Frequency here
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Mark BRAINLIEST
The length of a rectangular garden is 20 feet and the width is 15 feet. What is ratio of length to width?
Answers
Answer: 4:3 because 20 divided by 5 is 4 and 15 divided by 5 is 3.
In the figure, which of the following are collinear points? Question 14 options: A) ACF B) HDG C) AEG D) GBJ
Answers
Answer: B )HDG This is the answer stay safe.
Answer:
b. HDG
Step-by-step explanation:
Three or more points that lie on the same line are collinear points. The points D is on the same line as H and G.
So the anwser would be B.
Can somebody please help me with this?
Can somebody please help me with these questions and an explanation? Thanks! No links!
Answers
Mackey invested some money in an account paying 6% interest for one year. She invested $1000 more than this amount in an account paying 8.5%. How much did she invest in total if the total interest earned in the year was $737.50?
Answers
Step-by-step explanation:
Let's assume the amount Mackey initially invested in the 6% account is x dollars.
According to the given information, Mackey invested $1000 more than x in the 8.5% account, which means she invested (x + $1000) dollars in that account.
The total interest earned from the 6% account would be 0.06x dollars, and the total interest earned from the 8.5% account would be 0.085(x + $1000) dollars.
The total interest earned in the year is given as $737.50, so we can set up the equation:
0.06x + 0.085(x + $1000) = $737.50
Simplifying the equation:
0.06x + 0.085x + 0.085($1000) = $737.50
Combining like terms:
0.145x + $85 = $737.50
Subtracting $85 from both sides:
0.145x = $737.50 - $85
0.145x = $652.50
Dividing both sides by 0.145:
x = $652.50 / 0.145
x ≈ $4500
Therefore, Mackey initially invested approximately $4500 in the 6% account, and she invested $1000 more, which means she invested a total of $5500.
$4500
$4500
$4500
$4500
what is the answer i need answers now
Answers
Answer: 1/2, 0.51, 11/20
Step-by-step explanation:
Use 100 as a common denominator so you can compare all the numbers in like terms:
1/2 = 50/100
0.51 = 51/100
11/20 = 55/100
Answer:
\(\frac{1}{2} 0.51, \frac{11}{20}\)
Step-by-step explanation:
First, you want to change the decimal into a fraction. 0.51= \(\frac{51}{100}\)
Then, find the common denominator. In my example, I used 100. Find the equivalent fraction for the fractions with 100 as their denominator
\(\frac{11}{20} = \frac{55}{100} \\\\\ \frac{1}{2} = \frac{50}{100}\)
Next, line them up in order of their numerators
\(\frac{50}{100} \frac{51}{100} \frac{55}{100}\)
Finally, match the new fraction with their reduced fraction or decimal:
\(\frac{1}{2} = \frac{50}{100} \\\\0.51 = \frac{51}{100} \\\\\frac{11}{20} = \frac{55}{100}\)
how many groups of 27 are in 8397?
how many groups of 18 are in 9396?
how many groups of 14 are in 8442?
Answers
Answer:
There are 311 groups of 27 in 8397.
There are 522 groups of 18 in 9396.
There are 603 groups of 14 in 8442.
Step-by-step explanation:
Division is the key to getting the answer to this question.
8397 / 27 = 311
9396 / 18 = 522
8442 / 14 = 603
Cell phone company A charges $40 a month, with 500 free minutes and $0.10 a minute after that. Cell phone company B charges $25 a month and all minutes cost $0.05.
Answers
B = 25 + .05M
20 minutes a day for 30 days = 600 minutes per month
A(600) = 40+.1(100) = $50
B(600) = 25 + .05(100) = $30
Plan B is less expensive
40+.1(M-500)= 25+.05M
40-25- .1(500) = .05-.1M
.05M = 35
M= 35/.05 = 700 minutes will have the same cost under plan A or B
40+.1(200) = $60 under plan A
25+.05(700) = $60 under plan B
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Michael built a bin to hold 1980 cubic inches of flour. If the bin has a base that is 12 inches by 11 inches, what is the measurement of the height?
a) 15 in.
b) 86 in.
c) 1815 in.
d) 1848 in.
Answers
Karim multiplies two numbers written in scientific notation and finds that the product is 0.0258 × \(10^{-8 }\)
Explain the next steps Karim should take to solve this problem. Be specific.
Answers
Answer:
To solve the problem, Karim can follow these specific steps:
Understand scientific notation: Ensure that Karim understands the basic concept of scientific notation, which represents numbers as a product of a decimal number between 1 and 10 and a power of 10. For example, 0.0258 × 10^-8 is in scientific notation.
Convert to standard notation: Karim should convert the given numbers in scientific notation to standard notation. In this case, he can multiply 0.0258 by 10 raised to the power of -8. The result will be a decimal number in standard notation.
Perform the multiplication: Multiply the two numbers without considering the scientific notation. Multiply 0.0258 by 10 raised to the power of -8. This will give the actual product of the two numbers in standard notation.
Adjust the answer to scientific notation: After performing the multiplication, Karim should evaluate the result and adjust it to scientific notation if necessary. If the result is a very small or very large number, it is often expressed in scientific notation for convenience.
Finalize the answer: Write down the final answer in scientific notation, if applicable. Make sure to include the decimal number between 1 and 10 and the corresponding power of 10.
By following these steps, Karim will be able to solve the problem and obtain the accurate result in scientific notation, if necessary.
Step-by-step explanation:
there are several puppies, kittens, and rabbits at the pet hotel. the total number of puppy noses and kitten eyes is 22. the total number of kitten tails and rabbit eyes is 23. the total number of puppy paws and rabbit ears is 30. compute the total number of pet paws at the pet hotel. (brainliest to correct)
Answers
Answer: 80
Step-by-step explanation:
p=4
K=9
R=7
20*4=80
The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.
Bay Side School Seaside School
8, 6, 5 0 5, 8
8, 6, 5, 4, 2, 0 1 0, 1, 2, 5, 6, 8
5, 3, 2, 0, 0 2 5, 5, 7, 7, 8
3 0, 6
2 4
Key: 2 | 1 | 0 means 12 for Bay Side and 10 for Seaside
Part A: Calculate the measures of center. Show all work. (2 points)
Part B: Calculate the measures of variability. Show all work. (1 point)
Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning
Answers
Answer: Please refer below mentioned explanation.
Step-by-step explanation:
Part A:
For Bay Side School: To find the median, we arrange the data in ascending order: 0, 0, 2, 3, 4, 5, 5, 5, 6, 6, 8, 8, 8 There are 13 data points, so the median is the 7th value, which is 5.
To find the mean, we sum up all the data points and divide by the number of data points: Mean = (0 + 0 + 2 + 3 + 4 + 5 + 5 + 5 + 6 + 6 + 8 + 8 + 8) / 13 = 66 / 13 ≈ 5.08
For Seaside School: To find the median, we arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 5, 5, 5, 6, 7, 7, 8, 8 There are 15 data points, so the median is the 8th value, which is 5.
To find the mean, we sum up all the data points and divide by the number of data points: Mean = (0 + 0 + 0 + 1 + 1 + 2 + 2 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8) / 15 = 57 / 15 ≈ 3.80
Part B:
For Bay Side School: Range = Maximum value - Minimum value = 8 - 0 = 8
For Seaside School: Range = Maximum value - Minimum value = 8 - 0 = 8
Part C:
Based on the measures of the center, Bay Side School has a higher mean and median compared to Seaside School. This suggests that, on average, Bay Side School tends to have larger class sizes than Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice. Additionally, both schools have the same range of 8, indicating that the spread of class sizes is similar between the two schools.
Read more about stem-and-leaf-plot:
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Randall would like to purchase a new pair of athletic shoes that are regularly priced at $88.00. The store is running a 20% off sale. There is also a rebate for $20. Which is the better deal?
Answers
Answer: The shoes would be $17.60 and the rebate would be $4.00
Explanation: The shoes are normally expensive so it would be a better deal on the shoes rather than the rebate that isn't normally that expensive.