Answer:
4 seconds
Step-by-step explanation:
\(\frac{30,000}{1} =\frac{2,000}x}\)
The numerator is the distance and the denominator is the time.
I used cross multiplication, the numerator of one fraction times the denominator of the other.
\(30,000*x=2,000*1\\30,000x=2,000\)
divide both sides by 30,000 and simplify
\(x=\frac{2,000}{30,000} \\x=\frac{2}{30}\)
Then multiply the fractions by 2/2 (basically multiplying the numerator and the denominator each by 2)
\(x=\frac{4}{60}\)
Since the denominator is 60, the number of seconds in a minute, the numerator is the answer
I hope this makes sense ;-;
What is 2 divieded by 9 to the ninth power?
helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
Answer:
5%
Step-by-step explanation:
600 is 100%
30 is x%
100%=600
x%=30
30÷600•100=5
Members of the drama club held a car wash to raise funds for their spring musical. They
charged $3 to wash a car and $5 to wash a pick-up truck or a sport utility vehicle. If they
earned a total of $425 by washing a total of 125 vehicles, how many of each did they wash?
Use c to represent the number of cars and to represent the number of trucks.
Answer:
100 cars
25 trucks
Step-by-step explanation:
$3c + $5t = $425
c + t = 125 vehicles
($3 * 100) + ($5 * 25) = $425
100 + 25 = 125
Therefore, they washed 100 cars and 25 trucks
Hope this helps!
Find the length of the missing side
Answer:
sqrt(51)
Step-by-step explanation:
Use the Pythagorean theorem.
a^2 + b^2 = c^2
7^2 + x^2 = 10^2
49 + x^2 = 100
x^2 = 51
x = sqrt(51)
Answer: sqrt(51)
HELLP!!!! Ms.Smith, the principal of a local middle school, wants to find out the favorite after-school activity of 7th grade students in her school. which population should she sample to answer her question?
A) 7th graders in the school
B) parents of 7th graders in the school
C) other 7th grade teachers in the school
D) all students in the school
The correct population should she answered is is A) 7th graders in the school
To find out the favorite after-school activity of 7th grade students, Ms. Smith should sample the population directly related to the question. In this case, the most appropriate population to sample would be:
A) 7th graders in the school
By sampling the 7th graders in the school, Ms. Smith can directly gather information about their favorite after-school activities. This population consists of the students themselves who engage in the activities, and they would have first-hand knowledge and experience of their preferences.
B) Parents of 7th graders in the school might provide some insights, but they may not accurately represent the activities chosen by the students themselves.
C) Other 7th-grade teachers in the school may have some observations, but it may not reflect the preferences of the entire 7th-grade student population.
D) Sampling all students in the school would be broader than necessary and may not specifically address the favorite after-school activities of 7th-grade students.
Therefore, option A) 7th graders in the school is the most suitable population for Ms. Smith to sample in order to answer her question about the favorite after-school activity of 7th-grade students.
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I need helpppppp I’ve been stuck for a while
Answer:
i think its d
Step-by-step explanation:
Q2. How many different ways can a student be uniquely identified in Mason information systems, other than by name, address, phone number, or Social Security Number
In Mason information systems, the student be uniquely identified by Student ID Number, Email Address, Username, Student Identification Card and Enrollment or Admission Number.
Some of the commonly used methods include:
1. Student ID Number: Each student is typically assigned a unique identification number by the institution. This number serves as a distinct identifier and is used across various systems and records.
2. Email Address: Students often have a unique email address provided by the institution. This address can be used as an identifier since it is specific to the individual and does not overlap with others.
3. Username: Many educational systems assign a unique username to each student for logging into various online platforms and services. This username can be used as an identification method.
4. Student Identification Card: Institutions issue identification cards to students, which may include a barcode or other unique identifiers that can be scanned or used for identification purposes.
5. Enrollment or Admission Number: Some institutions assign a unique number to each student during the enrollment or admission process. This number can be used for identification within the information systems.
It is important to note that the methods of identification may vary among institutions. The specific identification methods used by Mason information systems would be defined by the policies and procedures implemented by the university.
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what are the ordered pairs of the solutions for this system of equations?
f(x)=x^(2)-2x+3; f(x)=-2x+12
The ordered pairs for the system of equations f(x) = x^2 -2x + 3 and f(x) = -2x + 12 are (3, 6) and (-3, 18)
What is a quadratic equation?A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is ax2 + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term. The first condition for an equation to be a quadratic equation is the coefficient of x2 is a non-zero term(a ≠ 0)
f(x) = x^2 -2x +3 and f(x) = -2x + 12
which means
x^2 -2x +3 = -2x + 12
x^2 -2x +3 + 2x - 12 = 0
x^2 -9 = 0
by factorizing we have
(x-3)(x+3) = 0
x = 3 or -3
when x = 3
f(x) = -2x + 12
f(3) = -2(3) + 12 which is 6
when x = -3
f(-3) = -2(-3) + 12 which is 18
ordered pairs are (3, 6) and (-3, 18)
In conclusion, (3, 6) and (-3, 18) are the ordered pairs
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Which of the following natural landmarks can be found in the Great Plains of Texas O Guadalupe Peak O Sam Houston National Forest Grand Prairie O Palo Duro Canyon
Answer:
the Palo Duro Canyon is found in the Great Plains of Texas.
Answer:
texas
Step-by-step explanation:
texas
Ben and timothyshare some money in the ratio of 3:4. Ben got $21, how much does timothy
gets?
Answer:
$28
Step-by-step explanation:
$21 is 3/7
1 part = $7
4x7=28
True or false is a relation in which each y value has only 1 x value
Answer:
The statement is true that a function is a relation in which each y value has ONLY 1 x value.
Step-by-step explanation:
The statement is true that a function is a relation in which each y value has ONLY 1 x value.
The reason is very clear that we can not have the repeated x-values (two same x-values).
For example, given the set of the ordered pairs of a relation
{(3, a), (6, b), (6, c)}
As the same x values (x=6) has two different Y values. Hence, the stated relation is not a function.
In order to be a function, a relation must have only 1 x-value for each y-value.
Therefore, the statement is true that a function is a relation in which each y value has ONLY 1 x value.
it is claimed that in a bushel of peaches more than ten percent are defective. a sample of 400 peaches is examined and 50 are found to be defective. what is the p-value? 0.0500 0.0250 0.0485 0.4525
The p-value is option (A) 0.0500
Under the null hypothesis, the expected number of defective peaches in the sample of 400 would be:
p = 0.10 (since the null hypothesis assumes a maximum of 10% defective peaches)
n = 400
expected number of defective peaches = np = 0.10 x 400 = 40
We can then use the binomial distribution to calculate the probability of getting 50 or more defective peaches in a sample of 400, assuming that the null hypothesis is true.
P(X ≥ 50) = 1 - P(X < 50)
where X is the number of defective peaches in the sample, assuming the null hypothesis is true.
Using a binomial calculator or a statistical software, we can find:
P(X < 50) = 0.3081
Therefore,
P(X ≥ 50) = 1 - P(X < 50) = 1 - 0.3081 = 0.6919
This is the p-value of the hypothesis test. Since this is a one-tailed test , we can compare the p-value to the significance level, α. If α = 0.05, then the p-value is greater than α, which means we fail to reject the null hypothesis.
Therefore, the correct answer is A. 0.0500.
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Tara and Edith share a sum of money in the ratio 13 : 12
What percentage of the money does Tara receive?
Answer:
She receives 108.33% ( or $108.33)
Step-by-step explanation:
Tara receives $108.33 because 13/12 into a percentage =108 times 100
which = 108.33.That's all there is to it! Hope you have a great day.
Determine whether the quadrilateral is a parallelogram, answer Yes or No below
The quadrilateral is a parallelogram so it is Yes.
What are the properties of a parallelogram?If a quadrilateral has a pair of parallel opposite sides, it’s a special polygon called parallelogram .The properties of a parallelogram are as follows:
The opposite sides are parallel and equal
The opposite angles are equal
The consecutive or adjacent angles are supplementary
If any one of the angles is a right angle, then all the other angles will be at right angle.
The quadrilateral is a parallelogram since the adjacent interior angles 75° and 105° are supplementary meaning they sum up to 180°
In conclusion, yes, the figure is a parallelogram.
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What decimal is the closest to 80
Answer: it would .08 then if you multiply by ten you would get 80
Step-by-step explanation:
q . (a + y) = 67y + 93
What are the next three terms in the sequence 3, 6, 9, 12, ...?
Answer:
15, 18, 21
Step-by-step explanation:
For Items 16-28, determine whether each function is
even, odd, or neither.
f(x) = -x + 2x + 5
f(x) = x + 8x
f(x) = -7x² + 5
f(x) = 5x + 3x? – 7x + 1
Answer:
f(x) = -x + 2x + 5
is odd since f(x) = -5
f(x) = x + 8x
is neither because f(x) = 0
f(x) = -7x² + 5
is odd since f(x) = √5/7
f(x) = 5x + 3x? – 7x + 1
is odd
the following list shows the number of goals scored by a soccer team in each of 9 games. 0 0 1 1 1 3 3 4 5 how does the median number of goals scored compare with the mean number of goals scored? responses
The median number of goals scored is 1, and the mean number of goals scored is 2. The median is less than the mean, indicating a right-skewed distribution.
To find the median, we need to first put the numbers in order
0, 0, 1, 1, 1, 3, 3, 4, 5
There are an odd number of values, so the median is the middle value, which is 1.
To find the mean, we add up all the values and divide by the number of values
(0 + 0 + 1 + 1 + 1 + 3 + 3 + 4 + 5) / 9 = 2
So the mean number of goals scored is 2.
Since the median (1) is less than the mean (2), we can say that the distribution is skewed to the right. This is because the high value of 5 pulls the mean up, while the median is not affected as much by outliers.
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Simple question: What is the difference between 32% vs 15%?
Answer:
Look below :)
Step-by-step explanation:
Well one of them is a bigger percentile, so the difference is 32-15. So the answer is 17. I hope this helps!
Carlos went and purchased a new mattress for $644.80, including tax. He made a down
payment of $200 and plans to pay the balance off in 5 equal monthly payments. What will
Carlos' monthly payment be for this mattress?
please please answer this fast!!!
Answer:
4 \(\frac{2}{4}\)
Step-by-step explanation:
1+1=2 and 1\(\frac{1}{4}\) + 1\(\frac{1}{4}\)=2\(\frac{2}{4}\)
2+2\(\frac{2}{4}\)= 4\(\frac{2}{4}\)
Answer:
4 1/2
Step-by-step explanation:
Once we add them up we get 4 2/4, simplified is 4 1/2.
9.
A squirrel can run a short distance at a rate of 4 miles in 15 minutes.
A fox can run a short distance at a rate of 21 miles in half an hour. Which
is faster, and how much faster in miles per hour?
A the squirrel; 23 miles per
hour
B the fox; 23 miles per hour
C the squirrel; 2 miles per hour
D the fox; 2 miles per hour
A recipe requires 1/3 cup of milk for each 1/4 cup of water. How many cups of water
are needed for each cup of milk?
A. 1/12
B. 3/4
C. 11/12
D. 1 1/3
Answer:
The answer is D 11/3
Step-by-step explanation:
What is the distance between the points (-5, 10) and (-5, 2)?
O2 units
8 units
O10 units
O 12 units
Answer:
B. 8 units----------------------
The two points have same x-coordinates. Therefore the distance between them is the difference of y-coordinates:
d = 10 - 2 = 8The matching choice is B.
what can identifying a correlation do for your research? aid in the calculation of the mean and mode. present possible solutions to be explored. guide the design of grids or decision matrices.
A correlational research design investigates relationship between variables without the researches controlling or manipulation any of them.
Correlational analysis is statistical method that is used to discover if there is a relationship between two variables/dataset, and how strong that relationship may be.
A correlation reflects the strength and direction of the relationship between two variables. The direction of a correlation can be either positive or negative.
Correlational research is ideal gathering data quickly from natural settings. They helps you generalize your findings to real-life situations in an externally valid way.
Correlation is also used to establish the reliability and validity of measurements. A positive correlation is a relationship between two variable s in which bothe variables move in the same direction. A negative correlation is a relationship between two variables in which as increase in one variable is associated with a decrease in the other. A zero correlation exist when there is no relationship between two variables.
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The null space of a is the solution set of the equation ax = 0.
a. true
b. false
It is true that the null space of a is the solution set of the equation ax = 0.
What is the proof?The null space of a matrix A is Nul(A)= {x : Ax=0}. In other words, if A is m × n, then its null space consists of those vectors x ∈ Rn which solve the homogeneous equation Ax= 0.
Solving Ax=0 yields an explicit description of Nul(A).
Therefore, the Option A is correct.
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how to solve an equation
Who is sometimes referred to as the Columbus of statistics because his book made a fundamental contribution by attempting to demonstrate the quantitative characteristics of birth and death data
Answer: John Graunt
Step-by-step explanation:
John Graunt is referred to as the Columbus of statistics because his book made a fundamental contribution by attempting to demonstrate the quantitative characteristics of birth and death data.
He's regarded as the founder of demography which is the statistical study of the population of human beings.
help me pleaseeeeeeeeeeeee
Answer:
Step-by-step explanation:
1. Since we know that Lila wants to use 1 cup of pretzels, we can multiply 1/2 x 1/2, which is 1.
2. Now that we multiplied 1/2 by 1/2, we have to multiply 1 1/4 by 1/2.
So 5/4 x 1/2 is 5/8.
3. Lila will need 5/8 cups of raisins.