Answers
Related Questions
A teacher orders homework books for her class of 30 students.
The total value of the order is $135.
Two more students join her class, so she orders two extra books.
What is the total value of the order now? $
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Explanation: each book cost $4.50
Answer:
The total value of the order now is $142.
Step-by-step explanation:
assuming all books are at the same price
135 ÷30=4.5
2x4.5=7
135+7=142
Hey I need help please. If a correlation coefficient is -0.9 what can you say about the data. Also this is a separate question but what does it mean for 2 sets of data to be positively correlated.
Answers
Answer:
Step-by-step explanation:
A correlation coefficient is a numerical measure of some type of correlation, meaning a statistical relationship between two variables. The variables may be two columns of a given data set of observations, often called a sample, or two components of a multivariate random variable with a known distribution. Pearson’s correlation coefficient returns a value between -1 and 1. The interpretation of the correlation coefficient is as under:
If the correlation coefficient is -1, it indicates a strong negative relationship. It implies a perfect negative relationship between the variables.
If the correlation coefficient is 0, it indicates no relationship.
If the correlation coefficient is 1, it indicates a strong positive relationship. It implies a perfect positive relationship between the variables.
A higher absolute value of the correlation coefficient indicates a stronger relationship between variables. Thus, a correlation coefficient of 0.78 indicates a stronger positive correlation as compared to a value of say 0.36. Similarly, a correlation coefficient of -0.87 indicates a stronger negative correlation as compared to a correlation coefficient of say -0.40.
Correlation Values
In other words, if the value is in the positive range, then it shows that the relationship between variables is correlated positively, and both the values decrease or increase together. On the other hand, if the value is in the negative range, then it shows that the relationship between variables is correlated negatively, and both the values will go in the opposite direction.
What value of w is a solution to this equation?
w/2 = 6
w = 10 or w = 12
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w = 12
just multiply 2 by 6 and then you will be left with W equals 12
can someone please help me with this what is 2x + 1x + 4
Answers
Answer:
3x + 4
Step-by-step explanation:
2x + 1x + 4 =
(2x + 1x) + 4 =
3x + 4
Hope that helps!
Answer:
3x + 4
Step-by-step explanation:
add the x's together and add the 4.
can someone help me please
A small business earns a profit of $6500 in January and $17,500 in May. What is the rate of change in profit for this time period?
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4 months have passed: february, march, april, may
$11,000 have been gained: 17500-6500
11,000/4 = 2750 per month
proof:
january: 6500
feb: 9250
mar: 12000
apr:14750
may:17500
How far from the base of the house do you need to place a 15’ ladder so that it exactly reaches the top of a 12’ wall?
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Answer:
3' away
Step-by-step explanation:
basically, you just subtract the 15 and the 12 ft together to get the 3!
Three less than on-half a number is -71
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Your Answer:
B. 1/2n-3
Explanation:
One way to get half a number is to multiply it by 1/2.
The phrase "a number less than an other number" often indicates subtraction.
PLS SOMEONE HELP PLS
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Answer:
30$
Step-by-step explanation:
Answer:
The cost per calculator is $30
Step-by-step explanation:
4 calculators = $120
Therefore, each calculator is :-
$120 divided by 4
= $30
NO LINKS
Lucy typed 3,756 words in 28 minutes. Let “w” represent the words typed each minute. If Lucy typed the same number of words each minute, how many words did she type each minute?
include an explanation on how you got your answer
Answers
Answer:
134 words per minuteStep-by-step explanation:
Divide the amount of words by the time
3756/28 = 134.1429
plz help 20 points
Two random samples of 25 people were asked how many 12-ounce cans of soda they consume each week. The first sample contained both males and females, aged 12-19. The second sample contained both males and females, aged 20-39. The results are shown in the table below. Using complete sentences, make one inference comparing the two groups and explain your reasoning.
Sample #1
16 11 9 12 11
10 10 8 15 0
2 15 14 7 11
5 14 20 3 11
14 7 0 5 21
Sample #2
21 14 0 3 6
7 10 11 7 9
14 0 15 5 12
20 0 12 11 6
0 21 14 0 6
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Answer:The data is pretty evenly distributed in the age 20-39 group.
There are no outliers in either age group.
The range of the two age groups is the same.
Both data sets contain about the same amount of variation.
Step-by-step explanation: Plz make brainiest.
Answer:
Sample #1 : 16 11 9 12 11 10 10 8 15 0 2 15 14 7 11 5 14 20 3 11 14 7 0 5 21 =
0 0 2 3 5 5 7 7 8 9 10 10 11 11 11 11 12 14 14 14 15 15 16 20 21
you just need to pout them in order least to grates
Sample #2 : 21 14 0 3 6 7 10 11 7 9 14 0 15 5 12 20 0 12 11 6 0 21 14 0 6 =
0 0 0 0 0 3 5 6 6 6 7 7 9 10 11 11 12 12 14 14 14 15 20 21 21
you just need to pout them in order least to grates
Step-by-step explanation:
A storage box has a Volume of 56 cubic inches and the base of the box is 4 what is the height of the box?
Answers
Answer:
56 x 4 =224
Step-by-step explanation:
Hope this helps
Plz help me thankyou:))))))
Answers
Answer:
X=54
Step-by-step explanation:
There are multiple steps to find this problem:
So in a triangle, the opposite inverse angles are congruent,
meaning <LQM and <PLQ are congruent so <LQM is also 70 degrees
a triangle = 180 degrees, therefore, triangle QLM can be solved by adding
54 and 70 to find the measure of the 3rd angle
54+70= 124, then 180 (because its the total amount of the triangle) - 124= 56
Then, we know that <QLM and <PQL are congruent angles as they are opposite inverse angles.
So, <PQL also equals 56 degrees
Then to find the 3rd angle of the triangle PLQ you can add 56 and 70 to find the 3rd angle
56+70= 126, Then 180 - 126= 54
So, X=54
200 cm= _________ meters
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Answer:
2m
Step-by-step explanation:
tfxfugxfzzffggzz6tfftzf
Answer:
2 meters
Step-by-step explanation:
100 cm = 1 meter
200/100= 2
please help me i dont understand this
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749ml= --------L please answer this question
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Answer:
The answer is 0.749 L.
Step-by-step explanation:
L, dc, cl, ml
0. 7 4 9
What fraction of 2 1/3 is 5/6?
A,) 1 17/18
B.) 5/14
C.) 11/15
D.) 1/18
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The second question is: How many pages did rob read? Round your answer to the nearest tenth
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117.2=q+17.6
q= 99.6
1.75(99.6) =174.3
Hannah read 99.6 pages so rob read 174.3 pages
Bob made 3 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 3 necklaces was $20.40 . If the beads cost a total of $8.70 , how much did each pendant cost?
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$20.4 total, minus $8.7 for beads= $11.7 for pendants
$11.7/3= $3.9 each
Please help!!! will give brainliest
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Answer:
The answer is B
Step-by-step explanation:
3 to the forth power = 81
3 to the second power = 9
81/9 = 9
Answer:
b: 9
Step-by-step explanation:
3x3x3x3= 81
3x3=9
81/9=9
Solve this equation and why this answer is correct.
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Answer:
s = 21
Step-by-step explanation:
Multiply both sides of the equation to get rid of the fraction.
7*3 = 21
Plsssssss help meeeeeee
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1.
total surface area Stot = 20.4924225 cm2
lateral surface area Slat = 16.4924225 cm2
bottom surface area Sbot = 4 cm2
2.
total surface area Stot = 46.1079506 ft2
lateral surface area Slat = 37.1079506 ft2
bottom surface area Sbot = 9 ft2
3.
total surface area Stot = 95.0467761 ft2
lateral surface area Slat = 68.0067761 ft2
bottom surface area Sbot = 27.04 ft2
Michael tracks his pay. He has already earned $97.75. He determined that the expression 97.75+17.80h represents the amount of money, in dollars, he has earned at hours.
Based on the given expression, about how many hours does it take Michael to earn 678.25?
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A grocery store receives a shipment of 700 oranges. The manager randomly selects 25 oranges to weigh. In that sample, 2 oranges weigh 5 ounces. How many oranges in the shipment can the manager predict weigh 5 ounces?
14
56
644
698
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Elizabeth wants to have her birthday party at the movies. It costs $28 for pizza and $11.00 per friend for the movie tickets. How many friends ( f ) can Elizabeth have at her party if she has $182 to spend?
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Answer:
Take the total, subtract the amount for pizza. Then divide by 11 to see how many friends.
Formula:
182 = 28 + 11f
14 friends
Answer:
She can have a total of 14 friends.
Step-by-step explanation:
182-28=154 => 154/11=14
What is name of your profile pic character?
Camille shaded _1 8
30 of a model. Write the decimal that represents the
unshaded portion of the model.
Answers
Answer:
you are saying it wrong its 1\8 and 3\3
Step-by-step explanation:
WHOEVER ANSWERS FIRST
WILL GET BRAINLIEST!!!
What is the sum of two numbers 9 and their difference is 7
14 POINTS!!!!
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Answer:
8 and 1
Step-by-step explanation:
8 + 1 = 9
8 - 1 = 7
Answer:
Step-by-step explanation:
Let b>a
a+b=9 and b-a=7 upon adding these two equations together
a+b+b-a=9+7
2b=16
b=8, given a+b=9
a+8=9
a=1
So the two numbers are 1 and 8
Nathan is 3 years older than Olivia. Determine the equation if n represents the age of Nathan and o represents the age of Olivia.
A. n = o + 3
B. o = n + 3
C. n = 3o
D. o = 3n
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Answer: A, n=o+3
Step-by-step explanation:
Nathan (n) is 3 years older than Olivia (o) so Nathan's age would equal Olivia's age plus 3 years.
Hope this helps :)
Step By Step Explanation: Since Nathan Is 3 Years Older we take Olivia age and add 3 to it to get Nathan Age
PLZZZZ HEEELLLPPP
Four runners start at the same point; Lin, Elena, Diego, Andre. For each runner write a multiplication equation that describes their journey.
Lin runs for 25 seconds at 8 meters per second. What is her finish point?
Elena runs for 25 seconds and finishes at 250 meters. What is her velocity?
Diego runs for 25 seconds at -8 meters per second. What is his finish point?
Andre runs for 5 seconds at -6 meters per second. What is his finish point?
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Answer:
Step-by-step explanation:
h
2. 250 divide by 25
3. 25x-8
4. 5x-6
I need help pls. (Dot plots) ♀️
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Step-by-step explanation:
C. television (h)=16
homework (h)=12
D. television (h)=10
homework (h)=15
E. television (h)=18
homework (h)=14
y=3x+14
2x-3y=-14
Substitution method
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Y= -45
2x-3y=-14
y=3x+14