Answer:
There are an infinte amount of whole numbers
Step-by-step explanation:
7 examples are, 0, 3, 7 , 8 ,9 14, 39
2. the research hypothesis posits that the more caffeine consumed by a subject, the longer a subject will stay awake (h1: rxy > 0). what would be concluded for r(10)= .653, p < .05?
The research hypothesis posits that the more caffeine consumed by a subject, the longer a subject will stay awake (H1: rxy > 0). In this case, we are given the correlation coefficient r(10) = 0.653 and p < 0.05.
To interpret these results, we need to understand the correlation coefficient (r) and the p-value. The correlation coefficient measures the strength and direction of the relationship between two variables. In this case, it represents the relationship between caffeine consumption and staying awake.
The correlation coefficient ranges from -1 to 1. A positive value indicates a positive relationship, meaning that as one variable increases, the other variable also tends to increase. A negative value indicates a negative relationship, where as one variable increases, the other tends to decrease. The closer the value is to 1 or -1, the stronger the relationship.
In this case, the correlation coefficient is 0.653, which is positive. This suggests a moderate positive relationship between caffeine consumption and staying awake.
The p-value, on the other hand, measures the probability of obtaining the observed correlation coefficient (or a more extreme one) if the null hypothesis were true. The null hypothesis (H0) states that there is no relationship between caffeine consumption and staying awake.
In this case, we are given that p < 0.05. This means that the probability of obtaining a correlation coefficient as extreme as 0.653, or more extreme, under the assumption that there is no relationship, is less than 0.05. This is considered statistically significant.
Based on these results, we can conclude that there is a statistically significant positive relationship between caffeine consumption and staying awake. However, it's important to note that correlation does not imply causation. Other factors could be influencing the relationship, and further research would be needed to establish a causal relationship.
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The sum of two odd numbers is even
Answer:
Yes.
Step-by-step explanation:
The sum of two odd numbers is always even. The product of two or more odd numbers is always odd. The sum of an even number of odd numbers is even, while the sum of an odd number of odd numbers is odd.
40 fl oz = _ c 9 gal=__ qt
Roger has a rope that is 3 feet long.He needs to cut it into 12 equal length pieces.How many feet loń should each piece of the rope be?
Answer:
0.25
Step-by-step explanation:
3/12 is 0.25
3 divided by 12 when simplified or reduced
The fraction 3/12 is equal to the exact decimal number.
each of 36 student at school play bought either cup of orange juice or a sandwich. a cup of orange juice costs 1$ and sandwich costs 3$ the total amount collected was 76$. how many students bought orange juice, and how many students bought sandwiches
Answer:
20 students bought sandwichs and 16 students bought orange juice.
20 x 3 = 60
16 x 1 = 16
60 + 16 = 76
I need help with 2.04, 2.06 and 2.08!!
Answer:
Sorry I can't help with2.08
Hope the remaining helped
PLS mark BRAINLIEST
HELPPPP:: solve the following equation for X: xy +3=z
Answer:x= 2y
Step-by-step explanation:
Answer:
x = z/ y − 3/ y
Step-by-step explanation:
that is how far I can simplifiy
please help for gods sake,,,
Answer:
Step-by-step explanation:
for the table you just add 45 to all the numbers, so it will be 135, and 270
you will just have to graph that.
Answer:
$90 to rent and 15$ per guest. equation is y=15x+90. initial value is 90, rate of change is 15.
Step-by-step explanation:
Expand using the distributive property 10(-4x + 2)
Answer:
-40x+20
Step-by-step explanation:
10 times -4x=-40x
10x2=20
Answer:
-40x+20
10*-4x+10*2
TRUE or FALSE: Darrell writes 15 text messages in 5 minutes. That is the same rate as 30 text messages in 15 minutes.Group of answer choices
Answer:
no, he would write 30 text messages in 10 minutes
Step-by-step explanation:
plz plz plz i will give brailest just solve plz
Answer:
10. 10/9 or 1.1 repeating or 1 1/9
11. 13/18 or 0.72 repating
12. 8/7 or 1 1/7
Step-by-step explanation:
The following information should be taken into consideration to answer this item: If the scores of 400 subjects in a psychological scale have been distributed normally with the mean score of 100 and standard deviation of 15: The Z score that equivalent to the raw score 92.5 is.... A.+ 0.5 B. -1.25 C.-0.5 D.-0.25
The Z score that is equivalent to the raw score 92.5 is B. -1.25.
A Z score represents the number of standard deviations a raw score is from the mean in a normal distribution. To calculate the Z score, we use the formula: Z = (X - μ) / σ, where X is the raw score, μ is the mean, and σ is the standard deviation.
Given that the mean score is 100 and the standard deviation is 15, we can calculate the Z score for the raw score 92.5 as follows:
Z = (92.5 - 100) / 15
Z = -7.5 / 15
Z = -0.5
Therefore, the Z score that is equivalent to the raw score 92.5 is -0.5.
The Z score is a useful measure in statistics that allows us to standardize and compare data points across different distributions. It helps us understand the relative position of a data point within a distribution and determine how unusual or typical that data point is compared to others. By calculating the Z score, we can easily determine the percentage of data points that fall below or above a particular value in a normal distribution, which aids in making statistical inferences and drawing conclusions.
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a girl lifts her cat up to her face to give him a kiss The mass of the cat is 2.5 kg. she lifts him up a distance of 1.2m. Use the formula Fg= mg to find the weight of the cat in newtons (N)
The weight of the cat is equal to 24.5 Newton.
What is weight?In Science, weight can be defined as the force acting on an object or a physical body due to the effect of gravity. Mathematically, the weight force on a physical body can be calculated by using this formula:
Fg = mg
Where:
Fg represents the weight.m represents the mass.g represents the acceleration due to gravity.Note: Acceleration due to gravity is equal to 9.8 m/s².
Substituting the given parameters into the weight formula, we have;
Weight, Fg = 2.5 × 9.8
Weight, Fg = 24.5 Newton.
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If you want 10 points answer my question
Plz
Triangle ABC is shown.
C
5x
3xo
A
B
What is the measure of 2 °?
Step-by-step explanation:
5x + 3x + 4x = 180°
12x = 180°
x = 180°/12
x = 15°
#CMIIWto what decimal place should each answer be rounded? how many significant figures does the rounded answer have?
The number of decimal places should be one more than the least accurate measurement, and the number of significant figures can be determined by counting the digits in the number, excluding the decimal point.
Rounding a number is important when providing an answer to a calculation or question. The number of decimal places and significant figures the answer should be rounded to depends on the accuracy of the answer that is required.
To calculate the number of decimal places and significant figures the answer should be rounded to, the general rule is to round to one more decimal place than the least accurate measurement. For example, if the least accurate measurement used in the calculation is rounded to two decimal places, the answer should be rounded to three decimal places.
The significant figures of the rounded answer can be determined by counting the number of digits in the number, excluding the decimal point. For example, the number 6,782 would have four significant figures, as there are four digits in the number.
In conclusion, the number of decimal places and significant figures the answer should be rounded to depends on the accuracy of the answer that is required. The number of decimal places should be one more than the least accurate measurement, and the number of significant figures can be determined by counting the digits in the number, excluding the decimal point.
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An angle measures 18° less than the measure of its complementary angle. What is the measure of each angle?
Step-by-step explanation:
COMPLEMENTARY ANGLES :THE ANGLES WHICH HAVE SUM OF THEIR ANGLES = 90°
Let the measure of angle be x°.
◕ It's compliment = (90 - x )°.
According to the question ;
⇢x=(90°−x)−18°
⇢x + x = 90° − 18°
⇢2x=72°
⇢x= 72°/2
⇢x=36°
And, it's compliment = 54°
In a large city school system with 20 elementary schools, the school board is
considering the adoption of a new policy that would require elementary students to pass
a test in order to be promoted to the next grade. The PTA wants to find out whether
parents agree with this plan.
Listed below are some ideas proposed for gathering data. For each, indicate what kind
of sampling strategy is involved and what (if any) biases might result.
a. Put a big ad in the newspaper asking people to log their opinions on the PTA website.
b. Randomly select one of the elementary schools and contact a parent for each student
in the school.
c. Send a survey home with every student, and ask parents to fill it out and return it the
next day.
d. Randomly select 20 parents from each elementary school. Send them a survey, and
follow up with a phone call if they do not return the survey within a week.
e. Run a poll on the local TV news, asking people to dial one of two phone numbers to
indicate whether they favor or oppose the plan.
f. Hold a PTA meeting at each of the 20 elementary schools, and tally the opinions
expressed by those who attend the meetings.
g. Randomly select one class at each elementary school and contact each of those
parents.
h. Go through the district’s enrollment records, selecting every 40th parent. PTA
volunteers will go to those homes to interview the people chosen.
a. This is a voluntary response sampling strategy. Bias may occur because only those with strong opinions are likely to respond, which may not represent the views of all parents.
b. This is cluster sampling. Bias may occur if the selected school is not representative of the entire city's school system.
c. This is a census. Bias may occur if some parents do not return the survey, leading to nonresponse bias.
d. This is stratified random sampling. Bias may be minimized as each school is fairly represented, but nonresponse bias could still occur if some parents do not return the survey or respond to the phone call.
e. This is a voluntary response sampling strategy. Bias may occur as only those watching the news and with strong opinions are likely to participate, which may not represent the views of all parents.
f. This is convenience sampling. Bias may occur because only those attending the PTA meetings will have their opinions counted, which may not represent the views of all parents.
g. This is cluster sampling. Bias may occur if the selected classes are not representative of the entire city's school system.
h. This is systematic random sampling. Bias may be minimized as the sample is spread evenly throughout the enrollment records, but nonresponse bias could still occur if some parents are not available for the interview.
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True or False? The point at which a tangent line meets a circle is called the point of tangency. O A. True O B. False.
True, The point at which a tangent line meets a circle is called the point of tangency.
What is Line segment?
Line segment is a part of the line which have two endpoints and bounded by two distinct end points and contain every point on the line which is between its endpoint.
Given that;
To check the point at which a tangent line meets a circle is called the point of tangency.
Now, We know that;
A line which touches the circle at a single point is known as a tangent to a circle.
And, The point where tangent meets the circle is called point of tangency.
Thus, The given statement is true.
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Solve for x. 4(x+2)-6x=16 Simplify your answer as much as possible.
The values of x taken by the equation are (-1 + √65)/4 and -(1 + √65)/4.
We can simplify this equation by applying quadratic solving principles.
First, we bring the equation into quadratic form. The general form of a quadratic equation goes as follows:
ax² + bx + c = 0
where a,b, and c are constants, and 'a' can never be zero (a ≠ 0), as an equation without at least a minimum of second order term is not considered a quadratic.
Here, on simplification,
x * 4*(x + 2) - 6x = 16
4x*x + 4x*2 - 6x = 16
4x² + 8x - 6x - 16 = 0
4x² + 2x - 16 = 0
We can reduce the coefficients if they all have a common factor, like in this case, 2.
2x² + x - 8 = 0
a = 2, b = 1 and c = -8
We will use the quadratic formula, to figure out the solutions for x:
Formula: x = [ -b ± √(b² - 4ac) ]/2a
So, x = [ -1 ± √1 + 64 ]/4
x = (-1 ± √65)/4
Thus, the solutions of the equation are (-1 + √65)/4 and -(1 + √65)/4.
Question: Solve for x in 4x.(x + 2) - 6x = 16. Simplify your answer as much as possible.
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Find the slope of the line passing through the points −7, 7 and 7, 7.
Answer:
no slope
Step-by-step explanation:
how i got the answer was easy all you have to do is grab the two y factors and have them on your numerator and the two x factors and have them for your denominator like this y2-y1/x2-x1=7-7/7+7 and since when you simplify it equalls 0/14 there would be no slope
5/6+1/4 these are fractions
Steren ears extra money babysitting. He charges $28.75 for 5 hours and $40 25 for 7 hours Complete the explanation of why the relationship between how much Steven charges and time sa proportional relationship The rates have the same?, ? per hour
Explanation:
We can find how much Steven charges per hour by dividing the total charge by hte hours:
\(\begin{gathered} \frac{28.75}{5}=5.75 \\ \frac{40.25}{7}=5.75 \end{gathered}\)Answers:
The rates have the same charge, $5.75 per hour
Why do you think it is an issue to have college costs rising without a corresponding rise in household income?
Answer:
College cost will increase until the person without a corresponding rise in household income can’t afford it.
Step-by-step explanation:
HELP ASAP
The function f(n) = 3n + 19 represents an arithmetic sequence. What is
the 32nd term of the sequence? *
Step-by-step explanation:
f(n) = 3n + 19
When n = 32, f(32) = 3(32) + 19 = 96 + 19 = 115.
The 32nd term of the AP is 115.
30. The total cost of a sandwich, a glass of
milk, and an apple is $3.50. The milk
costs one and a half times as much as
the apple. The sandwich costs $1.40
more than the apple. What is the price
of each?
Answer:
Apple=$0.60
Sanwich=$2
A glass of milk=$0.90
Step-by-step explanation:
PLEASE ANSWER FAST
Taking 0 on the number line.If the day before yesterday is 17 January, what is the date 3 days after tomorrow
Answer:
And 6th day after day before yesterday, that is, 17 January. So, we just need to add 6 to 17 to get the desired date. Thus, the date 3 days after tomorrow is 23rd January.
Step-by-step explanation:
hope it hlp
Answer:
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Find the two x-values that are solutions to the absolute value equationbelow. *[5 - 2x] – 11 = 0
Given the definition of absolute value:
\(\begin{gathered} |a|=\begin{cases}a,a\ge0 \\ -a,a<0\end{cases} \\ \end{gathered}\)in this case we have the following:
\(|5-2x|-11=0\)we will have two cases from this equation.
The first case is when 5-2x>=0, then we have the following:
\(\begin{gathered} 5-2x-11=0 \\ \Rightarrow-2x-6=0 \\ \Rightarrow-2x=6 \\ \Rightarrow x=\frac{6}{-2}=-3 \\ x=-3 \end{gathered}\)next, we will consider the cas when 5-2x < 0, then we would have the following:
\(\begin{gathered} -(5-2x)-11=0 \\ \Rightarrow-5+2x-11=0 \\ \Rightarrow2x-16=0 \\ \Rightarrow2x=16 \\ \Rightarrow x=\frac{16}{2}=8 \\ x=8 \end{gathered}\)therefore, the two x-values that are solutions to the equation are x=-3 and x=8
Are 12/7 and 36/21 proportional
Answer:
Step-by-step explanation:
Cross multiply:
12 * 21 = 7 * 36
Simplifying
12 * 21 = 7 * 36
Multiply 12 * 21
252 = 7 * 36
Multiply 7 * 36
252 = 252
Add '-252' to each side of the equation.
252 + -252 = 252 + -252
Combine like terms: 252 + -252 = 0
0 = 252 + -252
Combine like terms: 252 + -252 = 0
0 = 0
Solving
0 = 0
Couldn't find a variable to solve for.
This equation is an identity, all real numbers are solutions.
(hope this helps can i plz have brainlist :D hehe)
From the calculations below, 12/7 and 36/21 are proportional, therefore, the statement is true.
The first fraction given is 12/7.
The second fraction given is 36/21.
In order to check, we can multiply both the numerator and the denominator by 3. This will be;
= (12 × 3) / (7 × 3)
= 36 / 21
Therefore, it has been solved that 12/7 and 36/21 are proportional.
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What’s the domain of this graph?
Answer: ( ∞ , -∞ )
Step-by-step explanation: