Enter an equation in slope-intercept form for the line below.
2x + y = 4
Answers
Hope this helps!
Related Questions
A regression table mainly shows us Select one: a. How we should run the regression analysis.b. what the coefficients values are, and whether each coefficient is significant (likely to be different from from 0)c. that the smallest coefficients always have the greatest impact on the dependent variable.d. if a large constant term is important.e. all of the above.
Answers
A regression table mainly shows us that what the coefficients values are, and whether each coefficient is significant (likely to be different from from 0) .
A regression table is a statistical technique that describes how strongly a dependent variable and one or more independent variables are correlated (s). A field or variable you are attempting to predict or comprehend could be a dependent variable.
Regression allows researchers to predict or explain the variation in one variable based on another variable. The variable that researchers are trying to explain or predict is called the response variable. It is also sometimes called the dependent variable because it depends on another variable.
What is interpretation of regression statistics table?
In statistics, regression is a technique that can be used to analyze the relationship between predictor variables and a response variable. When you use software (like R, SAS, SPSS, etc.) to perform a regression analysis, you will receive a regression table as output that summarize the results of the regression.
A regression table primarily reveals the values of the coefficients as well as the significance of each coefficient (how likely it is that it will depart from 0).
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Find the value of x. Using trig
Answers
Hi there! We can find the value of x by using this equation.
\( \large \boxed{tanx = \frac{19}{23} }\)
If you remember, tanx = opposite/adjacent. We focus on the angle x currently.
Now that you might wanna ask if there is a value of x that makes 19/23. The answer is yes but in decimal.
\( \large{arctan( \frac{19}{23} )} = x\)
You might wanna put arctan(19/23) in a calculator since it's not really possible to get the square root like value by yourself.
arctan(19/23) is 0.69
Then we round up and get 0.7
Hence, the value of x ≈ 0.7
Answer
x ≈ 0.7 (rounded)Questions can be asked through comment.
Hope it helps, and Happy Learning! :)
Evaluate the line integral, where C is the given curve.
∫C xe^y dx, C is the arc of the curve x=e^y from (1, 0) to (e9, 9)
Answers
The value of the line integral is (1/3) (\(e^{27}\) - 1).
Evaluate the line integral.To evaluate the line integral, we need to parameterize the given curve C.
Since C is the arc of the curve x = \(e^{y}\), we can parameterize C as:
x = \(e^{t}\)
y = t
where t ranges from 0 to 9.
Then, we can express dx and dy in terms of dt:
dx = \(e^{t}\)dt
dy = dt
Substituting these into the integrand, we get:
\(x e^{y} dx = (e^{t} )(e^{t} ) e^{t} dt\)= \(e^{(3t)}\) dt
Thus, the line integral becomes:
∫C x\(e^{y}\) dx = ∫\(0^{9}\) \(e^{(3t)}\) dt
Evaluating the integral, we get:
∫\(0^{9}\) \(e^{(3t)}\) dt = (1/3) \(e^{(3t)}\) | from 0 to 9
= (1/3) (\(e^{27}\) - 1)
Therefore, the value of the line integral is (1/3) (\(e^{27}\) - 1).
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A statistician wants to determine the relationship between typing speed, in words per minute, and the time, in minutes, it takes to type one page of a specific book. Twenty-five trials are completed and the correlation coefficient between typing speed and time is determined to be -0.622. Therefore, slower typing speed was related to greater time. How is the correlation affected if the units for time are changed from minutes to seconds
Answers
The way that the correlation will be affected if the units are changed from minutes to seconds is that the correlation will still be the same.
What is correlation?Correlation simply means a statistical measure which expresses the extent to which two variables are linearly related.
From the information, it was stated that twenty-five trials are completed and the correlation coefficient between typing speed and time is determined to be -0.622.
In this case, even when the units for time are changed from minutes to seconds, the correlation won't change. This is because the change in units has no effect on the correlation.
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Answer:
The correlation would stay the same because the change in units for time would have no effect on it.
Step-by-step explanation:
The percentage of measurements that are above the 39th percentile is.
Answers
The percentage of measurements that are above the 39th percentile is 61%.
To calculate the percentage of measurements above the 39th percentile, we need to find the complement of the percentile value. The 39th percentile represents the value below which 39% of the measurements fall. Therefore, the complement of the 39th percentile is the percentage of measurements above that value. Since the total percentage adds up to 100%, subtracting 39% from 100% gives us the percentage of measurements above the 39th percentile, which is 61%.
In summary, the percentage of measurements that are above the 39th percentile is 61%. This means that 61% of the measurements are higher than the value corresponding to the 39th percentile.
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What is the percentage of measurements that fall above the 39th percentile?
\(\sqrt{x} 26bx^{3}\)
Answers
Answer:
5
Step-by-step explanation:
I took the test ;0
−10(9c−7c+8)−8c
pls help
Answers
please help!! Please give step by step so i can understand
Find p in the equation ( attached photo of the equation)
Answers
Answer:
p = - 14
Step-by-step explanation:
Using the rules of exponents
\(a^{m}\) ÷ \(a^{n}\) = \(a^{(m-n)}\)
\((a^{m}) ^{n}\) = \(a^{mn}\)
Note 81 = 9² and 729 = 9³
Given
\((81)^{-4}\) ÷ \((729)^{2-p}\)
= \((9^{2}) ^{-4}\) ÷ \((9^{3}) ^{2-p}\)
= \(9^{-8}\) ÷ \(9^{6-3p}\)
= \(9^{-8-(6-3p)}\)
= \(9^{-8-6+3p}\)
= \(9^{3p-14}\)
Thus
\(9^{3p-14}\) = \(9^{4p}\)
Since bases on both sides are equal then equate the exponents
4p = 3p - 14 ( subtract 3p from both sides )
p = - 14
Unlimited
Factor by grouping (sometimes called the ac-method).
4x² + 3x - 10
First, choose a form with appropriate signs.
Then, fill in the blanks with numbers to be used for grouping.
Finally, show the factorization.
Form:
o
Ax? +
1 x + x - 10
Х
$
4x
+
x - l * - 10
4x?
[ x + x - 10
4x?
x - 10
Factorization:
Answers
Answer:
(4x - 5)(x + 2).
Step-by-step explanation:
4x^2 + 3x - 10
4 * 10 = -40
We need 2 numbers whose product is -40 and whose sum is +3.
Theses are = - 5 and + 8.
So we write:
4x^2 + 8x + -5x - 10
= 4x(x + 2) - 5(x + 2)
= (4x - 5)(x + 2).
Brooklyn bought a snowcone from the local shop. It is shaped like a cone topped with a half-sphere. The cone has a height of 6 in. And a radius of 2 in. What is the approximate volume of the whole shape? Round your answer to the nearest tenth. Use 3. 14 to approximate pi. (Show your work. )
Answers
The approximate volume of the whole shape is 56.5 cubic inches (rounded to the nearest tenth).
To find the volume of the whole shape, we need to find the volume of the cone and the half-sphere and then add them up.Volume of the Cone
The volume of a cone is given by the formula V = (1/3)πr²h, where r is the radius of the base of the cone, h is the height of the cone, and π is pi.
Given, radius of the cone r = 2 in and height of the cone h = 6 in.
Volume of the cone V =
(1/3)πr²h
= (1/3) × 3.14 × 2² × 6
= 25.12 cubic inches (rounded to the nearest hundredth).Volume of the half-sphere
The volume of a sphere is given by the formula V = (2/3)πr³, where r is the radius of the sphere, and π is pi.
As we only need half the volume of the sphere, we divide the result by 2.
The radius of the half-sphere is equal to the radius of the cone, which is 2 in.Volume of the half-sphere V = (1/2) × (2/3)πr³
= (1/2) × (2/3) × 3.14 × 2³
= 16.74 cubic inches (rounded to the nearest hundredth).Volume of the whole shape
Volume of the whole shape = Volume of cone + Volume of half-sphere
= 25.12 + 16.74
= 41.86 cubic inches (rounded to the nearest hundredth).
Therefore, the approximate volume of the whole shape is 56.5 cubic inches (rounded to the nearest tenth).
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Betty has 42 butterfly stickers, as shown below.
She puts an equal number of stickers on each of 6 pages in her sticker book.
How many stickers does Betty put on each page in her sticker book?
Answers
Answer:
7
Step-by-step explanation:
42/6=7
Would 4/5 Be 80%, 0.8%, Or 8%? Please help i'm confused
Answers
Answer:
4/5 is a fraction. 0.8 in Percent 0.8 = (0.8 x 100)/100 = 80/100 = 80% 0.8 as a percent can be written 80%.
Step-by-step explanation: i hope this answer your question.
In this activity, you will test if the distribution of colors from a sample bag of M&Ms candy is the same as the Mars company claims. You will need to purchase a small bag of M&Ms from your local store. M&M Mars Co. claims the following distribution of the number of different colors of M&M's in each bag: Brown 13% Yellow 14% Red 13% Orange 20% Green 16% Blue 24% Suppose we are only interested in the number of Orange, Green, Blue and "Other" colors, which would then have the following claimed distribution: Orange 20% Green 16% Blue 24% Other 40% Take a sample of 35 M & M's and run a hypothesis test to see if you accept Mar's claim. Use α = .05.
Answers
Answer:
The claim made by Mar's is correct.
Step-by-step explanation:
In this case we need to test whether M&M Mars Co.'s claim about the proportion of different colored M&Ms in a small bag is correct or not.
The hypothesis is:
H₀: The claim made by Mar's is not correct.
Hₐ: The claim made by Mar's is correct.
The proportions claimed are as follows:
Orange: 20%
Green: 16%
Blue: 24%
Other: 40%
A sample of 35 M&M's are selected.
The observed frequencies are:
Observed = {O = 4, G = 8, B = 5 and Ot = 18}
Compute the expected frequencies as follows:
\(E(O)=4\times 20\%=0.80\\\\E(G) = 8\times 16\%=1.28\\\\E(B)=5\times 24\%=1.20\\\\E(Ot)=18\times 40\%=7.20\)
Compute the Chi-square statistic as follows:
\(\chi^{2}=\sum[\frac{(O-E)^{2})}{E}]\)
\(=[\frac{(4-0.80)^{2}}{0.80}]+[\frac{(8-1.28)^{2}}{1.28}]+[\frac{(5-1.20)^{2}}{1.20}]+[\frac{(18-7.20)^{2}}{7.20}]\\\\=12.80+35.28+12.03+16.20\\\\=76.31\)
The Chi-square test statistic value is 76.31.
The degrees of freedom of the test is:
df = n - 1
= 4 - 1
= 3
Compute the p-value as follows:
\(p-value=P(\chi^{2}_{0.05,3}<76.31)<0.00001\)
The p-value < 0.05.
The null hypothesis will be rejected at 5% level of significance.
Thus, concluding that the claim made by Mar's is correct.
the school of business believes that a review course will help to improve the mean score on an outcomes assessment test. a faculty member claims that the improvement is no more than 3%. a sample of 30 students' scores shows a mean score improvement of 2.8%. what would be the null hypothesis to test the faculty member's claim at the 5% significance level?
Answers
The null hypothesis to test the faculty member's claim that the improvement is no more than 3% at the 5% significance level is that the true mean score improvement on the outcomes assessment test is equal to or less than 3%.
What is null hypothesis?The null hypothesis is a statement that assumes there is no significant difference or relationship between two variables in a population, or that any observed difference or relationship is due to chance or sampling error. It is usually denoted by "H0" and is used in statistical hypothesis testing to determine whether there is evidence to support an alternative hypothesis.
In the given question,
The null hypothesis to test the faculty member's claim that the improvement is no more than 3% at the 5% significance level would be:
H0: The true mean score improvement on the outcomes assessment test is equal to or less than 3%.
This hypothesis assumes that there is no significant improvement in the mean score on the outcomes assessment test as a result of the review course. The alternative hypothesis would be:
Ha: The true mean score improvement on the outcomes assessment test is greater than 3%.
This hypothesis assumes that there is a significant improvement in the mean score on the outcomes assessment test as a result of the review course.
To test these hypotheses, we would use a one-tailed t-test with a significance level of 0.05 and calculate the t-value and p-value based on the sample data. If the p-value is less than 0.05, we would reject the null hypothesis and conclude that there is evidence of a significant improvement in the mean score on the outcomes assessment test as a result of the review course. If the p-value is greater than or equal to 0.05, we would fail to reject the null hypothesis and conclude that there is no evidence of a significant improvement in the mean score on the outcomes assessment test as a result of the review course.
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-5(t + 3)= -30
Solve for the variable!! Please
Answers
Answer:
\(\huge\boxed{t=3}\)
Step-by-step explanation:
\(-5(t+3)=-30\)
METHOD 1:\(-5(t+3)=-30\) divide both sides by (-5)
\(\dfrac{-5\!\!\!\!\diagup(t+3)}{-5\!\!\!\!\diagup}=\dfrac{-30}{-5}\)
\(t+3=6\) subtract 3 from both sides
\(t+3-3=6-3\\t=3\)
METHOD 2:\(-5(t+3)=-30\) use the distributive property a(b + c) = ab + ac
\((-5)(t)+(-5)(3)=-30\)
\(-5t-15=-30\) add 15 to both sides
\(-5t-15+15=-30+15\)
\(-5t=-15\) divide both sides by (-5)
\(\dfrac{-5t}{-5}=\dfrac{-15}{-5}\\\\t=3\)
Tom has 13 new magazines to read. Let M be the number of magazines he would have left to Read after reading R of them. Write an equation relating to M to R. Then graph your equation using the axis below
Answers
The equation that relates M to R is M = 13 - R
How to determine the equation that relates M to R?From the question, we have the following parameters:
Total number of new magazines = 13Number of magazines read = RNumber of magazines left = MThe total number of new magazines is the sum of the number of magazines read and the number of magazines left
This is represented as
Total number of new magazines = Number of magazines read + Number of magazines left
Substitute the known values in the above equation
13 = R +M
Make M the subject
M = 13 - R
Hence, the equation is M = 13 - R
See attachment for the graph
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could someone help? which graph correctly represents the equation? i’ll mark brainliest
Answers
Answer:
c
Step-by-step explanation:
it is the closest and its good to guese once and a while
Introduction to Probability
Please show all work
Suppose you are taking an exam that only includes multiple choice questions. Each question has four possible choices and only one of them is correct answer per question. Questions are not related to the material you know, so you guess the answer randomly in the order of questions written and independently. The probability that you will answer at most one correct answer among five questions is
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The probability of guessing the correct answer for each question is 1/4, while the probability of guessing incorrectly is 3/4.
To calculate the probability of answering at most one correct answer, we need to consider two cases: answering zero correct answers and answering one correct answer.
For the case of answering zero correct answers, the probability can be calculated as (3/4)^5, as there are five independent attempts to answer incorrectly.
For the case of answering one correct answer, we have to consider the probability of guessing the correct answer on one question and incorrectly guessing the rest. Since there are five questions, the probability for this case is 5 * (1/4) * (3/4)^4.
To obtain the probability of answering at most one correct answer, we sum up the probabilities of the two cases:
Probability = (3/4)^5 + 5 * (1/4) * (3/4)^4.
Therefore, by calculating this expression, you can determine the probability of answering at most one correct answer among five questions when guessing randomly.
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Envision mathematics common core volume 1 book page 195
Answers
Answer:
?
Step-by-step explanation:
Can someone pls explain what I’m supposed to do I don’t really understand
Answers
Answer:
There are only 3 differences perform
Step-by-step explanation:
I. If x is negative, y is negative then the answer is possitive
eg. x is -2, y is -3
-2 × -3 = 6
II. If x is negative, y is positive then the answer is negative
eg. x is -1, y is 2
-1 × 2 = -2
III. If x is possitive, y is possitive then the answer is positive
eg. x is 2, y is 5
2 × 5 = 10
Alt. No matter how long x, y, z, a, b there always apply only 3 rules above. Multiply or Devide are the same rule.
Ask me for anything :D
HELP PLS 41 POINTS PLS URGENT
Answers
Answer:
$150
Step-by-step explanation:
The given equation is 20L + 25G -10.
We need to calculate 4 gardens (G) and 3 lawns (L).
So substitute:
= 20(3) + 25(4) -10
= 60 + 100 - 10
= 160-10
= $150
What is the surface area of the right trapezoidal prism?
Answers
Answer:
Depends. See text.
Step-by-step explanation:
Surface area or volume?
Ther are two options.
Case 1: we know nothing about the green angles I've marked in green. Data is insufficient to determine the perimeter of the trapezoid base, and then to calculate the surface area.
Case 2:Unlikely, since the right angles are marked everywhere else when not obvious: the base of the prism is a right trapezoid, ie two of the angles measures 90°. In that case we can easily find the length of the missing side with pythagorean theorem: \(l=\sqrt{1+3^2}= \sqrt{10}\). Perimeter becomes \(2p=6+7+3+\sqrt{10}=16+\sqrt{10}\). Base area is \(A_b=\frac12(6+7)\times 3 = \frac{39}2\) And the total surface becomes \(S= 2A_b+2pH = 39+(16+\sqrt{10})20 = 39+320+20\sqrt{10}=359+20\sqrt{10}\)
Or is it the volume you want? Way simpler, we calculate the area of the prism (see above) and multiply it by the height of the solid:
\(V = A_bH = \frac{39}2\times 20 = 390\)
Write an equation of the parabola that has its x intercepts at (-3,0) and (4,0) and its y intercept at (0,-6)
Answers
the x-intercepts in a function are pretty much just its roots or solutions, so let's reword that
what's the equation of a parabola with roots at -3 and 4 that it passes through (0 , -6)?
\(\begin{cases} x = -3 &\implies x +3=0\\ x = 4 &\implies x -4=0\\ \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{original~polynomial}{a ( x +3 )( x -4 ) = \stackrel{0}{y}}\hspace{5em}\textit{we also know that } \begin{cases} x=0\\ y=-6 \end{cases} \\\\\\ a ( 0 +3 )( 0 -4 ) = -6\implies -12a=-6\implies a=\cfrac{-6}{-12}\implies a=\cfrac{1}{2} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{1}{2}( x +3 )( x -4 ) =y\implies \cfrac{1}{2}(x^2-x-12)=y\implies \boxed{\cfrac{x^2}{2}-\cfrac{x}{2}-6=y}\)
Check the picture below.
Seleccionamos los valores de x y y que sean soluciones de los sistemas de ecuaciones planteados x + 3 = y x2- 16y2 = 0
Answers
Responder:
Los valores de y son 3/5 y -1
Los valores de x son = -12/5 y -4
Explicación paso a paso:
Dadas las eqautions;
x + 3 = y ...... 1
x ^ 2- 16y ^ 2 = 0 ..... 2
Sustituya la ecuación 1 en 2 que tendremos;
x ^ 2- 16y ^ 2 = 0
x² - 16 (x + 3) ² = 0
x²-16 (x² + 6x + 9) = 0
x²-16x²-96x-144 = 0
-15x²-96x-144 = 0
15x² + 96x + 144 = 0
5x² + 32x + 48 = 0
Al factorizar tendremos;
5x + 12 = 0 yx + 4 = 0
x = -12/5 y -4
Obtenga los valores de y;
recuerda que y = x + 3
Si x = -12/5
y = -12/5 + 3
y = 3/5
Si x = -4
y = -4 + 3
y = -1
Por tanto, los valores de y son 3/5 y -1
From a piece of cardboard that is 32 inches by 12 inches, you are making a box by cutting equal squares at each corner and folding it up. What size should the squares be for the volume of the box to be maximal? Find x
Answers
For the maximum volume of , the value of x must be smaller that is x = 2.90 inch. Size of square = 8.41 sq. in.
Explain about maxima and minima:The issue is an application of maxima and minima, where the unknown quantity is located using the first derivative. Keep in mind that the height of a box is equal to a side of the cut square when the sides are bent upward. Moreover, the box formula's volume is
Volume = length * width * height
Given:
Length of rectangle cardboard l = 32 inchesWidth of rectangle cardboard w = 12 inchesLength of the side of each square - x inxhes.Volume of new box = (32 - 2x)(12 - 2x)x
Rearranging terms:
V = 4x³ - 88x² + 384x
For maximum volume, V' = 0 (first derivative)
V' = 12x² - 167x + 384
V' = 0
12x² - 167x + 384 = 0
Solve using quadratic formula:
x = [-b ± √(b² - 4ac)] / 2a
a = 12 , b = - 167 , c = 384
x = [167 ± √(167² - 4*384*12)] / 2*12
x = [167 ± 7√193] / 24
Now,
x = [167 + 7√193] / 24
x = 11.01 inch
and,
x = [167 - 7√193] / 24
x = 2.90 inch
For the maximum volume of , the value of x must be smaller that is x = 2.90 inch.
Size of square = x²
Size of square = 2.90²
Size of square = 8.41 sq. in.
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Question 1
S
For f(x) = -5x – 2, evaluate f(5).
-32
-27
23
-15
Answers
Answer:
Step-by-step explanation:
f(5) = -5(5) - 2 = -25 - 2 = -27
answer is B
Recommendations Math Language arts Science Elghth grade) Y.2 Find the slope from two points ZAC Find the slope of the line that passes through (5,8) and (3, 3). Simplify your answer and write it as a proper fraction, improper fraction, or inte Submit Work it out
Answers
What is the decimal equivalent of
7/8
?
A. 0.780
B. 0.870
C. 0.875
D. 0.885
Answers
The equation of C is (x - 2)^2 + (y - 1)^2 = 25. Of the points P(0,5), Q(2,2) R(5,-2), and S(6,6), which point is located outside the circle?
Answers
Answer:
( 6,6) is outside
Step-by-step explanation:
(x - 2)^2 + (y - 1)^2 = 25
This is of the form
(x - h)^2 + (y - k)^2 = r^2
where ( h,k) is the center and r is the radius
(x - 2)^2 + (y - 1)^2 = 5^2
The center is at ( 2,1) and the radius is 5
P(0,5), Q(2,2) R(5,-2), and S(6,6)
Adding the radius to the y coordinate gives us 6 so the only point with a y coordinate on the circle is ( 2,6)
( 6,6) is outside the circle
I dont have that much time
witch one is it
A
B
C
D
Answers
Answer:
\(x<4\)
Step-by-step explanation:
\(-3x-5-2x>-25\)
Subtract the x terms:
\(-5x-5>-25\)
Add 5 to both sides:
\(-5x-5+5>-25+5\)
\(-5x>-20\)
Multiply both sides by -1 and flip the inequality symbol:
\(5x<20\)
Divide both sides by 5:
\(\frac{5x}{5}<\frac{20}{5}\)
\(x<4\)
Answer:
Option 1
Step-by-step explanation:
Step 1: Write inequality
-3x - 5 - 2x > -25Step 2: Solve for x
Combine like terms: -5x - 5 > -25Add 5 to both sides: -5x > -20Divide both sides by -5: x < 4