Answer:
y=10-6x/2
Step-by-step explanation:
Ok so first you need to subtract 6x. Yes, you just subtract the whole thing from 10. So carry it over to the ten. It should look like this. 2y=10-6x
You had to carry the whole thing because you have a variable. Next, you need to get rid of the 2 that is still hanging on to they. So you do the opposite of multiplication since you are multiplying 2 and y. So divide 10-6x by 2. Well you can't exactly do that because there is a variable with the six. So it would just be 10-6x over 2.
when constructing a confidence interval for the mean of a distribution based on one sample, how is confidence level determined?
Constructing a confidence interval for the mean of a distribution based on one sample is Confidence level = 1 - significance level.
The definition of the confidence level is (1-α). Zα is the number of standard deviations from the mean at which X with a certain probability lies. If Z = 1.96 is selected, the likelihood that the real mean falls inside the range is set at 0.95, hence we are asking for the 95% confidence interval.
Let us consider,
Confidence level = c
significance level \(= \alpha\)
\(c = 1 - \alpha\)
Fore more such question on confidence level.
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RESPONDE LAS PREGUNTAS 8, 9 Y 10 DE ACUERDO CON LA
SIGUIENTE INFORMACIÓN
Luis pintó un mural que
tiene 760 cm de
perímetro; sus medidas se
muestran en la siguiente
figura.
8. La expresión asociada al largo del mural: 2x - 40, se
puede interpretar como
A. el largo tiene 40 cm menos que el doble de su ancho
B. el largo excede en 40 cm al valor del ancho
C. el ancho al cuadrado, menos 40 cm, es igual al largo
D. 40 cm menos dos veces el ancho es el valor del largo
9. ¿Cuáles son las medidas en centímetros del mural?
A. largo: 150, ancho: 190 B. largo: 210, ancho: 250
B. largo: 210, ancho: 250
C. largo: 240, ancho: 140 D. largo: 230, ancho: 190
D. largo: 230, ancho: 190
10. El área que utilizó Luis para pintar el mural es
A. 2[(2x - 40) + x] B. 2x2 - 40x
B. 2x2 - 40x
C. (2x) x – 40 D. x2 - 40x
D. x2 - 40x
Answer:
ANSWER QUESTIONS 8, 9 AND 10 ACCORDING TO THE
NEXT INFORMATION
Luis painted a mural that
has 760 cm of
perimeter; your measurements are
show in the following
figure.
8. The expression associated with the length of the mural: 2x - 40, is
can interpret as
A. the length is 40 cm less than twice its width
B. the length exceeds the width value by 40 cm
C. the width squared, minus 40 cm, equals the length
D. 40 cm minus twice the width is the value of the length
9. What are the measurements in centimeters of the mural?
A. length: 150, width: 190 B. length: 210, width: 250
B. length: 210, width: 250
C. length: 240, width: 140 D. length: 230, width: 190
D. length: 230, width: 190
10. The area Luis used to paint the mural is
A. 2 [(2x - 40) + x] B. 2x2 - 40x
B. 2x2 - 40x
C. (2x) x - 40 D. x2 - 40x
D. x2 - 40x
Step-by-step explanation:
How to find x^2=5 using radicals
Answer: x= √5, x = -√5
Step-by-step explanation:
To simplify x^2 = 5, square root both sides to get:
√(x^2) = √5
Then, to simplify √(x^2), you can cross out the √ and the exponent, and add a +-, as the square root of x^2 is |x|, or +-x.
You then get x = √5, and -x = √5, and for the -x = √5, multiply both sides by -1 to get x = -√5.
WHOEVER ANSWERS RIGHT FIRST GETS BRAINLIEST 4(4m-10)=8(m-5)+8m Combine the liked terms Im assuming.. Couldn't find answer anywhere!
Answer:
simplified it is
16m-40=16m-40
to 4 percent. If Calvin made monthly payments of $220 at the end of each month, how long would it take to pay off his credit card? a. If Calvin made monthly payments of $165 at the end of each month, how long would it take to pay off his credit card? months (Round up to the nearest unit.)
Rounding up to the nearest unit, it would take Calvin approximately 27 months to pay off his credit card with a monthly payment of $165.
To determine how long it would take Calvin to pay off his credit card, we need to consider the monthly payment amount and the interest rate. Let's calculate the time it would take for two different monthly payment amounts: $220 and $165.
a. Monthly payment of $220:
Let's assume the initial balance on Calvin's credit card is $3,000, and the annual interest rate is 4 percent. To calculate the monthly interest rate, we divide the annual interest rate by 12 (number of months in a year):
Monthly interest rate = 4% / 12 = 0.3333%
Now, we can calculate the time it would take to pay off the credit card using the monthly payment of $220 and the monthly interest rate. We'll use a formula for the number of months required to pay off a loan with fixed monthly payments:
n = -(log(1 - (r * P) / A) / log(1 + r))
Where:
n = number of months
r = monthly interest rate (as a decimal)
P = initial balance
A = monthly payment
Plugging in the values:
n = -(log(1 - (0.003333 * 3000) / 220) / log(1 + 0.003333))
Using a calculator, we can find:
n ≈ 15.34
Rounding up to the nearest unit, it would take Calvin approximately 16 months to pay off his credit card with a monthly payment of $220.
b. Monthly payment of $165:
We can repeat the same calculation using a monthly payment of $165:
n = -(log(1 - (0.003333 * 3000) / 165) / log(1 + 0.003333))
Using a calculator, we find:
n ≈ 26.39
Please note that these calculations assume that Calvin does not make any additional charges on his credit card during the repayment period. Additionally, the interest rate and the balance are assumed to remain constant. In practice, these factors may vary and could affect the actual time required to pay off the credit card balance.
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If a researcher is interested determining if there is a relationship between ethnicity and job type, then a Chi- Square Goodness of Fit test can be used. false true
It is FALSE to state that if a researcher is interested determining if there is a relationship betweenethnicity and job type, then a Chi- Square Goodness of Fit test can be used.
How is this so?A Chi-Square Goodness of Fit test is not appropriate for determining the relationship between ethnicity and job type.
This test is used to assess thedistribution of categorical variables within a single population or sample, comparing observed frequencies with expected frequencies.
To examine the relationship between ethnicity and job type, a Chi-Square test of independence or another suitable statistical test, such as logistic regression,would be more appropriate.
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Which is least likely to be an application where statistics will be useful?O Deciding whether offering Rice Krispies improves restaurant salesO Predicting whether an airfare is likely to rise or fallO Designing the most desirable features for a ski passO Choosing the wording of a corporate policy prohibiting smoking
The option that is least likely to be an application where statistics will be useful is "Choosing the wording of a corporate policy prohibiting smoking".
This is because statistics are generally used to analyze numerical data and make predictions or decisions based on that data.
However, choosing the wording of a corporate policy does not involve numerical data and therefore would not require the use of statistics.
The other options, such as deciding whether offering Rice Krispies improves restaurant sales, predicting whether an airfare is likely to rise or fall, and designing the most desirable features for a ski pass, all involve the analysis of numerical data and therefore would benefit from the use of statistics.
Statistics is the study of the collection, analysis, interpretation, presentation, and organization of data.
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Find the value of x. Round to the nearest degree.
A right triangle is drawn with an angle that is labeled x degrees. The leg opposite of the labeled angle is 7. The hypotenuse is 9.
Rounding to the nearest degree, we get x = 53 degrees.
We can use the inverse sine function (sin⁻¹) to find the value of x.
From the sine rule,
sin(x) = opposite/hypotenuse
\(sin(x) = 7/9\\x = sin^{-1}(7/9)\)
Using a calculator, we find that x is approximately 53.13 degrees. Rounding to the nearest degree, we get x = 53 degrees.
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5. Which of the following are empty sets?
(a) {0}
(b) {x: x is an integer and 2x - 1 = 10}
(c) (even prime numbers)
(d) {even factors of 21} -) (even numbers between 2 and 5)
The terms empty set, null set, and void set are all used to describe a set that is empty of any elements.
What is meant by empty sets?The empty set is the only set in mathematics that possesses no items; its size or cardinality is 0. While in other theories, its existence can be inferred, some axiomatic set theories guarantee the presence of the empty set by introducing an axiom of empty set.
An empty set is a set that contains no elements and can be represented by the symbol, which indicates that it is empty of elements. It has a definite number of elements since the finite set contains a countable number of items and the empty set has none. An empty set is a finite set since it has a cardinality of zero.
Therefore, the correct answer is option (c) (even prime numbers).
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Learning Task
It took Althea 40 minutes
to walk 27mile to her
Int's apartment after
hool because she
Srgot her keys and
noone was home yet.
Nhat was her speed in
miles per hour?
Answer:
40.3miles/hr
Step-by-step explanation:
Given parameters:
Time taken = 40min
Distance covered = 27mile
Unknown:
Speed in miles per hour = ?
Solution:
Speed is the distance divided by the time;
Speed = \(\frac{distance }{time}\)
convert the time to hrs;
60min = 1hr
40min = \(\frac{40}{60}\) = 0.67hr
Insert the parameters and solve;
Speed = \(\frac{27}{0.67}\) = 40.3miles/hr
What is the slope-intercept equation
for the following line?
Answer: y = -1/2x + 1
The following data are taken from a study conducted by the National Park Service, of which Death Valley is a unit. The ground temperature (oF) were taken from May to November in the vicinity of Furnace Creek. Compute the interquartile range.
To compute the interquartile range (IQR), we need the dataset containing the ground temperatures taken from May to November in the vicinity of Furnace Creek.
Without the actual dataset, I won't be able to provide you with the exact IQR. However, I can explain the process of calculating the interquartile range once you have the dataset.
The interquartile range is a measure of statistical dispersion and represents the range between the first quartile (Q1) and the third quartile (Q3). Here's how you can calculate it:
1. Arrange the dataset in ascending order.
2. Find the median of the dataset, which is the value separating the lower half from the upper half.
3. Split the dataset into two halves: the lower half (values less than or equal to the median) and the upper half (values greater than or equal to the median).
4. Find the median of the lower half, which becomes Q1.
5. Find the median of the upper half, which becomes Q3.
6. Calculate the interquartile range (IQR) by subtracting Q1 from Q3: IQR = Q3 - Q1.
Once you provide the dataset, I can help you calculate the interquartile range using the steps outlined above.
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Which ordered pair would form a proportional relationship with the point graphed below?
Answer:
C
Step-by-step explanation:
It is C because it has a proportional value through the diameter of the graph. With that you will also be able to figure this out by seeing that the light in between the graph is even. The numbers that the graph a line with are similar to the answer C.
16.) What can you say about a solution of the equation
y' = ?(1/6)y2
just by looking at the differential equation?
a.) The function y must be increasing (or equal to 0) on any interval on which it is defined.
b.)The function y must be equal to 0 on any interval on which it is defined.
c.) The function y must be strictly decreasing on any interval on which it is defined.
d.) The function y must be decreasing (or equal to 0) on any interval on which it is defined.
e.) The function y must be strictly increasing on any interval on which it is defined.
This can be determined by analyzing the given differential equation. The equation shows that the rate of change of y, y', is proportional to the square of y, y^2, with a negative constant factor of (1/6). This means that as y increases, the rate of change y' decreases, and as y decreases, the rate of change y' increases.
Therefore, if y is positive, y' will be negative, indicating that y is decreasing. And if y is 0, y' will also be 0, indicating that y is constant. Thus, the function y must be decreasing (or equal to 0) on any interval on which it is defined.
In terms of mathematics, this can also be expressed as follows:
- The given differential equation represents a function y' as a function of y: y' = f(y) = (1/6)y^2.
- Since f(y) is always non-positive for all real y, y' will be non-positive for all positive y, indicating that y is decreasing (or equal to 0).
- Therefore, any solution of the equation y' = (1/6)y^2 will have a decreasing (or constant) function y on any interval on which it is defined.
Your answer: a.) The function y must be increasing (or equal to 0) on any interval on which it is defined.
Explanation: The given differential equation is y' = (1/6)y^2. Since y^2 is always non-negative (i.e., greater than or equal to 0), the right side of the equation (1/6)y^2 is also always non-negative. Therefore, y' (the derivative of y with respect to x) must be greater than or equal to 0. This implies that the function y must be increasing (or equal to 0) on any interval on which it is defined.
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make m
the subject of
the formula
r=5m²-n
Answer:
√(r+n)/5=m
Step-by-step explanation:
r=5m²-n
adding n on both sides
r+n=5m²-n+n
r+n/5=m²
taking square root on both sides
√(r+n)/5=m
Diana earns $9.95 per hour
working at the bank. She
needs to save at least
9
$200.00 in 3 weeks.
Which inequality can be used
to determine h, the number of
hours she needs to work to
reach her goal?
Answer:
m = $9.00 * h.
Step-by-step explanation:
hours: 4, 5, 6, 7,
money: 34, 42.5, 51, 59.5,
Mark has $500 in his savings account. If he saves $25 each month,
how money months will it take him to have $1000?
HELLPPPPPPP PLEASEEE
Answer:
3
Step-by-step explanation:
Hi ! Please help, this came up as one of my questions and I don’t know how to do it well. Thanks!
Answer:
y = (3/2)x + 3
Step-by-step explanation:
Comment
The general equation is
y = mx + b
Finding m
The equation for the slope is
m = (y2 - y1)/(x2 - x1)
Givens
y2 = 3
y1 = 0
x2 = 0
x1 = - 2
m = (3 - 0)/(0 - -2)
m = 3 / 2
m = 3/2
Finding b
b is the y intercept which is (0,3)
x = 0
y = 3
3 = 0*3 + b
b = 3
So the equation is
y = (3/2) x + 3
Can someone help me ASAP.
Answer:
A. JK and LM lie in the same plane
B. JK and LM do not intersect
E. JK and LM are parallel
Step-by-step explanation:
hope this helped
suppose a social scientist is interested in studying what makes audiences love or hate a movie. she collects a random sample of movies (genre, length, cast, director, budget, etc.) as well as a measure of the success of the movie (score on a film review aggregator website). if as part of her research she is interested in finding out which variables are significant predictors of movie success, what type of model selection method should she use?
The type of model selection method that the scientist should use is a stepwise regression.
What is the stepwise regression?In statistics, stepwise regression is a method of fitting regression models in which the selection of predictive variables is done automatically. Each step considers a variable for addition to or subtraction from the set of explanatory variables based on some predetermined criterion.
To determine which predictors are significant in the model to predict movie success, we should use the step-wise regression method which is a model selection method.
Stepwise regression is a method for testing the statistical significance of each independent variable in a linear regression model iteratively. The forward selection method begins with nothing and gradually adds each new variable, testing for statistical significance along the way.
The underlying goal of stepwise regression is to identify a set of independent variables that significantly influence the dependent variable through a series of tests (e.g., F-tests, t-tests). Stepwise regression has the following advantages: The ability to manage a large number of potential predictor variables while fine-tuning the model to select the best predictor variables from among the available options. It is faster than other methods of automatic model selection.
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Given 2x - 3 = 7, what is the value of x?
Answer:
2x-3=7 /×3
2x=3+7
2x=10 /÷2
x=5
Answer:
Step-by-step explanation:
2x - 3 = 7 Add 3 to both sides
2x - 3+3 = 7 + 3 Combine
2x = 10 Divide by 2
2x/2 = 10/2 Combine
x = 5
These types of equations all follow the same pattern. The look like
ax + b = c You have to isolate the x so add b if b is minus or you subtract b if b is plus. Notice that b was minus in your question. So Add
Now you you have
ax = c - b That always happens. The x is isolated if you deal with b first. Now all you need to do is divide by a.
x = (c - b)/a
Try a couple
3x -4 = 5 The answer is 3
5x + 2 = 27 the answer is 5
If the runner is moving from left to right in the Gizmo, how does the graph
always look
Answer:
the graph will have a positive slope(the line will go from lower left to upper right)
The diameter of the Moon is 3.5 × 10^3 km.
The diameter of the Sun is 1.4×10^6 km.
Calculate the ratio of the diameter of the Moon to the diameter of the Sun.
Give your answer in the form 1 : n
Answer:
1 : 400
Step-by-step explanation:
\(\frac{3.5 x 10^{3} }{3.5 x 10^{3} } : \frac{1.4 x 10^{6 } }{3.5 x 10^{3} }\)
1 : .4 x \(10^{3}\)
1 : 4 x \(10^{2}\)
1 : 400
is figure pqrstu a translation, reflection, or rotation? Explain your reasoning
PLEASE HELP ME
Answer: I'd say reflection
Answer:
It is a reflection
Step-by-step explanation:
In Geometry, a reflection is known as a flip. A reflection is a mirror image of the shape. An image will reflect through a line, known as the line of reflection. A figure is said to reflect the other figure, and then every point in a figure is equidistant from each corresponding point in another figure.
please help!!
In a survey, 90% of dentists recommended sugarless gum for their patients who chew gum. If the total number of dentists surveyed was 80, how many dentists recommended chewing sugarless gum?
(Hint: What is 90% of 80?)
Answer:
72
Step-by-step explanation:
80x.90= 72
Answer:
72 is your answer
Step-by-step explanation:
What is the area of this quadrilateral?
4 ft
3 ft
10 ft
10 ft
31
4 ft
Answer:
42
Step-by-step explanation:
Answer:
42 square feet
Step-by-step explanation:
add all of the square feet together, including the sides parallel that don't tell you how many inches. What I mean by parallel is the sides across from it.
Look at the pattern below.
O .
step 1 step 2 step 3 step 4
How does the pattern grow at each step?
Choose 1 answer:
It grows by 2 squares, then 3 squares, then 4 squares.
B
It grows by 3 squares each step.
It grows by 2 squares, then 4 squares, then 8 squares.
It grows by 2 squares each step.
Answer:
A. It grows by 2 squares, then 3 squares, then 4 squares
Hope this helps!
help PLEASE!!!?!!!!!!
Answer:
yes
Step-by-step explanation:
Answer:
the answer is b
Step-by-step explanation:
Find the perimeter of the figure.
8 cm
10 cm
Answer:
12.565 + 8 + 10 + 10 = 40.565
Find the circumfrence of the circle and divide that by 2. Then add the other sides.