Answer: -.5 OR -.1, -.2, -.3, -.4, -.5, -.6,-.7,-.8,-.9
Step-by-step explanation: The simple answer is -.5, it is right in the middle of 0 and -1. The answer number is everything in between.
I'm marking brainliest bad answers grt a report an ban. ---- ----------- When solving this system of equations with substitution one of the following is a step. x+y=6, - 6x+8y = 6 * --------------------------------------------- -6(-x + 6) + 8y = 6 x+y = 6 -6x+8 (-x + 6) = 6 8y = 6x + 6
Answer:
-6x + 8(-x+6) = 6
Step-by-step explanation:
x+y = 6 => y = 6-x ..............(1)
Substitute y (1) in
-6x+8y = 6 .......................(2)
to get
-6x + 8(6-x) = 6
or equivalently
-6x + 8(-x+6) = 6
Which lists the fractions from least to greatest?
A.-1/3,-2/3,1/3
B.1/3,-1/3,-2/3
C.1/3,-2/3,1/3
D.-2/3,1/3,-1/3
E.-2/3,-1/3,1/3
Answer:
E
Step-by-step explanation:
Which one of the following correctly describes a type ll error?
A. The null hypothesis is rejected in error.
B. The research hypothesis is rejected in error.
C. The study was underpowered.
D. The study was not double-blinded.
E. The research hypothesis is accepted in error.
The correct answer is A. The null hypothesis is rejected in error.
In statistical hypothesis testing, a Type II error occurs when the null hypothesis is incorrectly retained or failed to be rejected when it is actually false.
In other words, a Type II error happens when the researcher concludes that there is no significant difference or relationship between variables when, in reality, there is.
It is a false negative result, as the researcher fails to detect a true effect or relationship.
Option A accurately describes Type II error, while the other options are not related to Type II error.
Option B refers to rejecting the research hypothesis, which is not a Type II error but rather a Type I error.
Option C refers to the study being underpowered, which may increase the likelihood of both Type I and Type II errors but is not a direct description of Type II error.
Option D mentions double-blinding, which is a methodological consideration and not directly related to Type II error.
Option E refers to accepting the research hypothesis in error, which is not a Type II error but rather a correct decision or Type I error.
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What is the x-intercept and the y-intercept of the graph of 6x - 12y = 36? Please explain your answer in full sentences.
Sentence Frame: I found the x-intercept by...and I found the y-intercept by...
Answer:
Sentence Fram: I found x-intercept by substitute y by 0 and I found y-intercept by substitute x by 0
x-intercept = (6, 0), y-intercept = (0, -3) ⇒ C
Step-by-step explanation:
To find the x-intercept of a line, equate y in its equation by 0To find the y-intercept of a line, equate x in its equation by 0∵ The equation of the graph is 6x - 12y = 36
→ Equate y by 0 to find x
∵ y = 0
∴ 6x - 12(0) = 36
∴ 6x - 0 = 36
∴ 6x = 36
→ Divide both sides by 6 to find x
∴ x = 6
∴ The x-intercept = (6, 0)
→ Equate x by 0 to find y
∵ x = 0
∴ 6(0) - 12y = 36
∴ 0 - 12y = 36
∴ -12y = 36
→ Divide both sides by -12 to find y
∴ y = -3
∴ The y-intercept = (0, -3)
∴ Sentence Fram: I found x-intercept by substitute y by 0 and I found
y-intercept by substitute x by 0
∴ x-intercept = (6, 0), y-intercept = (0, -3)
"MATLAB code:
Show that x^3 + 2x - 2 has a root
between 0 and 1.
Find the root to 3 significant digits using the Newton
Raphson Method."
The answer of the given question based on the code is , the output of the code will be: The root of x³ + 2x - 2 between 0 and 1 is 0.771
MATLAB code:
To show that `x³ + 2x - 2` has a root between 0 and 1 and,
to find the root to 3 significant digits using the Newton Raphson Method,
we can use the following MATLAB code:
Defining the function
f = (x)x³ + 2*x - 2;
Plotting the function
f_plot (f, [0, 1]);
grid on;
Defining the derivative of the function
f_prime = (x)3*x² + 2;
Implementing the Newton Raphson Method x0 = 1;
Initial guesstol = 1e-4;
Tolerance for erroriter = 0; % Iteration counter_while (1)
Run the loop until the root is founditer = iter + 1;
x1 = x0 - f(x0)
f_prime(x0);
Calculate the next guesserr = abs(x1 - x0);
Calculate the error if err < tol
Check if the error is less than the tolerancebreak;
else x0 = x1;
Set the next guess as the current guessendend
Displaying the resultfprintf('The root of x³ + 2x - 2 between 0 and 1 is %0.3f\n', x1));
The output of the code will be: The root of x³ + 2x - 2 between 0 and 1 is 0.771
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When you run the above code in MATLAB, it will display the root of x^3 + 2x - 2 to 3 significant digits.
MATLAB code:
Show that x^3 + 2x - 2 has a root between 0 and 1:
Here is the code to show that x^3 + 2x - 2 has a root between 0 and 1.
x = 0:.1:1;y = x.^3+2*x-2;
plot(x,y);
xlabel('x');
ylabel('y');
title('Plot of x^3 + 2x - 2');grid on;
This will display the plot of x^3 + 2x - 2 from x = 0 to x = 1.
Find the root to 3 significant digits using the Newton Raphson Method:
To find the root of x^3 + 2x - 2 to 3 significant digits using the Newton Raphson Method, use the following code:
format longx = 0;fx = x^3 + 2*x - 2;dfdx = 3*x^2 + 2;
ea = 100;
es = 0.5*(10^(2-3));
while (ea > es)x1 = x - (fx/dfdx);
fx1 = x1^3 + 2*x1 - 2;
ea = abs((x1-x)/x1)*100;
x = x1;fx = fx1;
dfdx = 3*x^2 + 2;
enddisp(x)
When you run the above code in MATLAB, it will display the root of x^3 + 2x - 2 to 3 significant digits.
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Han wants to build a dog house. He makes a list of the materials needed:
At least 60 square feet of plywood for the surfaces
At least 36 feet of wood planks for the frame of the dog house
Between 1 and 2 quarts of paint
Han's budget is $65. Plywood costs $0.70 per square foot, planks of wood cost $0.10 per foot, and paint costs $8 per quart.
write inequalities to represent the material constraints and cost constraints in this situation.
Answer:
a) \(p \geq 60\,ft^{2}\), b) \(w \geq 36\,ft\), c) \(1\,qt \leq q \leq 2\,qt\), d) \(0.70\cdot p + 0.10\cdot w + 8\cdot q \leq 65\)
Step-by-step explanation:
In this question we proceed to translate each sentence into mathematical language and, more specifically, inequations:
a) At least 60 square feet of plywood for the surface
Let \(p\) the surface area of plywood, measured in square feet, and the inequation is:
\(p \geq 60\,ft^{2}\) (Eq. 1)
b) At least 36 feet of wood planks for the frame of the dog house
Let \(w\) the total length of wood planks, measured in feet, and the inequation is:
\(w \geq 36\,ft\) (Eq. 2)
c) Between 1 and 2 quarts of paint
Let \(q\) the total capacity of paint, measured in quarts, and the inequation is:
\(1\,qt \leq q \leq 2\,qt\) (Eq. 3)
d) Han's budget is $ 65. Plywood costs $ 0.70 per square foot, planks of wood cost $ 0.10 per foot and paint costs $ 8 per quart.
Dimensionally speaking, we understand that cost equals unit cost multiplied by physical variable (i.e. Area, length or capacity). Let \(p\), \(w\) and \(q\) the surface area of plywood, the total length of wood planks and the total capacity of paint, respectively. The sentence is represented by the following inequation:
\(0.70\cdot p + 0.10\cdot w + 8\cdot q \leq 65\) (Eq. 4)
Write an inequality to represent each constraint(material and cost)
Inequality to represent cost constraints is 0.70p + 0.10pw + 8pa ≤ 65Plywood:
plywood ≥ 60 square feet
Planks:
planks ≥ 36 feet
Paints
1 quarts ≤ paints ≤ 2 quarts
Inequality to represent cost constraint
Plywood = $0.70
planks of wood = $0.10
paint costs $8
Total cost = $65
0.70 × p + 0.10 × pw + 8 × Pa ≤ 65
0.70p + 0.10pw + 8pa ≤ 65
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Find the sum or type
"impossible”
[1 -2 1] + [4 -5 -6] ]
[[?]
[ ]]
Answer:
27
Step-by-step explanation:
looked on photomath
List all the factors of 12 from least to greatest. Enter your answer below,
using a comma to separate each factor.
Answer/Step-by-step explanation:
In order, from least to greatest, the factors of 12 are 1, 2, 3, 4, 6, and 12.
Write a rule for the reflection
Help Now
The incident ray, reflected ray, and normal ray all lie in the same plane at the point of incidence, according to the laws of reflection. (ii) Both the incidence and reflection angles are equal.
What is rule of reflection?A line of reflection is required to achieve a geometry reflection; the resulting orientations of the two figures are opposite. The corresponding regions of the figures are separated from the line of reflection by comparable distances. Ordered pair rules appear as (x, -y) on the x-axis, (-x, y) on the y-axis, and the line y=x as follows (y, x).Every point on a given shape has an opposite point that is the same distance from the y-axis but on the opposite side of the y-axis. Reflection over the y-axis produces a figure that is the same size and shape as the original but has been flipped over the y-axis.According to the first law of reflection, when a light beam reflects off a surface, the angle of incidence and angle of reflection are equal.Therefore, reflection angles are equal.
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Move point B some more. As you move point B, the angle formed between and varies. If you want to make perpendicular to what do you need to do? Explain in terms of .
Answer:
To make AB perpendicular to CD move point B until the angle between the lines, BEC measures 90°.
Step-by-step explanation:
Plato
If you have to make AB perpendicular to CD, rotate AB clockwise, until and unless both the lines intersect at 90 degrees.
What are angles? What is a mathematical function, equation and expression?Angles : the space (usually measured in degrees) between two intersecting lines or surfaces at or close to the point where they meet.
Function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function
Expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators
Equation : A mathematical equation is used to equate two expressions.
Given is that as you move point B, the angle formed between AB and CD varies.
If you have to make AB perpendicular to CD, rotate AB clockwise, such that the point B moves in clockwise direction, until and unless both the lines intersect at 90 degrees.
Therefore, if you have to make AB perpendicular to CD, rotate AB clockwise, until and unless both the lines intersect at 90 degrees.
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Write an equation in slope-intercept form for the line with slope 4/3 and y-intercept -3. Then graph the line.
Answer:
y = 4/3x -3
Step-by-step explanation:
Helppp!!!
\( \dfrac{2}{15} \div \dfrac{20}{3} \)
.........
\({\huge \underline{{ \fbox \color{red}{A}}{\fbox \color{green}{n}}{\fbox \color{purple}{s}}{\fbox \color{brown}{w}}{\fbox \color{yellow}{e}}{\fbox \color{gray}{r } }}}\)
\( \sf \dfrac{2}{15} \div \dfrac{3}{20} = \dfrac{2 \times 20}{15 \times 3} = \dfrac{40}{45} = \dfrac{8}{9} \)
Answer :-
\( \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf \Rrightarrow \dfrac{8}{9} \)
I hope I've helped : )
\(\dfrac{1}{50}\)
Step-by-step explanation:1. We multiply.\( \cfrac{2}{15} \times \cfrac{3}{20} \)
2. We join the fractions and put it only in 1.\( \cfrac{2 \times 3}{15 \times 20} \)
3. We multiply the one above which is 2 × 3.\( \cfrac{6}{15 \times 20} \)
4. Now we will multiply the below.\( \cfrac{6}{300} \)
5. Now we simplify.\( \cfrac{1}{50} \)
-------------------------------------------------------------------------------------------------------
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Multiply. Write your answer in scientific notation. 50 · (2 x 10^6)
Answer:
50 · (2 x 10^6) = 1 × 10^8
Step-by-step explanation:
In scientific notation a large number is converted to an equivalent decimal number between 1 and 10, multiplied by 10 raised to some power. Very small numbers are converted to an equivalent decimal number between 1 and 10, multiplied by 10 raised to some negative power.
Javier walks from his house to the zoo at a constant
Answer:
Congrats?
Step-by-step explanation:
I don´t understand the question
The problem solved plan identified steps to organize your information which of the following answers choose are included in the steps organize your information
Note that the answer choice that are included in the steps to organize information are:
Organize the problem and find the question. (Option A)Write the facts, organize your thoughts and define your strategy. (Option C)Organize the steps and underline the question. (Option D)What is the rationale for the above response?A. Organizing the problem and determining the question is an important step in problem-solving because it allows you to comprehend the problem and what you need to discover.
C. Writing down the facts, organizing your thoughts, and defining your strategy is also an important step in problem-solving because it allows you to see what information you have and how you will approach the problem.
D. Organizing the steps and underlining the question is also important in problem-solving because it allows you to have a clear understanding of the various steps you must take and the question you must answer.
B. Although it is not included in the steps to organize your information, solving the problem and changing your strategy if necessary is an important step.
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Full Question:
The problem-solving plan identifies steps to organize your information. Which of the following answer choices are included in the steps to organize your information?
A. Organize the problem and find the question.
B. Solve the problem and change your strategy if necessary.
C. Write the facts, organize your thoughts and define your strategy.
D. Organize the steps and underline the question.
I need help with this problem
Answer: 5024
Step-by-step explanation:
multiply 3.14 and 1600
Evaluate a2b2c2 for a = 2, b = 3, and c = 4.
Answer:
576
Step-by-step explanation:
Substitute the variables and solve.
\(a^2b^2c^2\\\\(2)^2(3)^2(4)^2\\\\(4)(9)(16)\\\\576\)
angle 4=x+30 and angle 2=2x+15. Find the measure of angle 4
Answer:
4 is equal to x=1 + 30 will be 31
Step-by-step explanation:
2= 2x1 that is equal to 2 + 15= 17
in conclusion 2=17 and 4=31
Please help me please
Answer: angles
Step-by-step explanation: the first one is
= alternative interior angle
.the second one =alternative exterior angle
; try it
I desperately need help on this IXL.
Answer:
linear
Step-by-step explanation:
equal slope throughout
I NEED HELP PLEASE!! Does anyone understand this??
Answer: 44.4
Step-by-step explanation:
We are asked to find angle V, so we are going to use our trig ratios to explain this one. They have given us the side opposite of angle v and the hypotunse. angle v. so we are going to be using sine. . SOHCAHTOA.
First, let use the ratio for sine \(\frac{opp}{hypo\\}\) which equal to \(\frac{7}{10}\)
then we are to take the arcsine or the sine inverse because we are trying to the angle measure not side length. (\(sin^{-1}\)(7/10) which gives us 44.4
The graph of the cubic parent equation, y=x3
, is plotted on the coordinate plane.
Select two equations that represent a shift of the graph of the parent equation to the right on the coordinate plane.
The two equations that represent a shift of the graph are y=(x-12)³ and y=(x+8)³.
What is an equation?
Variable terms are frequently used in complex algorithms to reconcile two opposing claims. Academic statements known as equations are used to express the equivalence of different academic quantities. Rather than using a specific algorithm to divide 12 into two parts and assess the data obtained from y + 7, normalization in this case leads to b + 7.
The two equations describe a shift of the graph of the parent equation on the coordinate plane towards the right.
=> y=(x-12)³
=> y=(x+8)³
Therefore , the solution of the given problem of equation comes out to be y=(x-12)³ and y=(x+8)³.
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slope = 5, goes through the point (2, 7)
The partial sum 1 + 10 + 19 +.... 199 equals :___________
The partial sum of the given sequence, 1 + 10 + 19 + ... + 199, can be found by identifying the pattern and using the formula for the sum of an arithmetic series. Hence, the partial sum of the sequence 1 + 10 + 19 + ... + 199 equals 4497.
To find the partial sum of the given sequence, we can observe the pattern in the terms. Each term is obtained by adding 9 to the previous term. This indicates that the common difference between consecutive terms is 9.
The formula for the sum of an arithmetic series is Sₙ = (n/2)(a + l), where Sₙ is the sum of the first n terms, a is the first term, and l is the last term.
In this case, the first term a is 1, and we need to find the value of l. Since each term is obtained by adding 9 to the previous term, we can determine l by solving the equation 1 + (n-1) * 9 = 199.
By solving this equation, we find that n = 23, and the last term l = 199.
Substituting the values into the formula for the partial sum, we have:
S₂₃ = (23/2)(1 + 199),
= 23 * 200,
= 4600.
However, this sum includes the terms beyond 199. Since we are interested in the partial sum up to 199, we need to subtract the excess terms.
The excess terms can be calculated by finding the sum of the terms beyond 199, which is (23/2)(9) = 103.5.
Therefore, the partial sum of the given sequence is 4600 - 103.5 = 4496.5, or approximately 4497 when rounded.
Hence, the partial sum of the sequence 1 + 10 + 19 + ... + 199 equals 4497.
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movie has been downloading for 4 min and has downloaded 25%. how many minutes are needed for the remaining 75%
It will take 12 more minutes for the remaining 75% of the movie to download using algebra.
To determine how many minutes are needed for the remaining 75% of the movie to download, we will follow these steps:
1. Observe that the movie has been downloading for 4 minutes and has downloaded 25%. This means that the time taken to download 25% of the movie is 4 minutes.
2. Now, we need to determine the time taken to download the remaining 75% of the movie. Since we know the time taken for 25%, we can use this information to find the time for 75%.
3. We can set up a proportion: (time taken for 25%)/(time taken for 75%) = 25%/75%. This proportion helps us understand the relationship between the time taken for both percentages.
4. Plug in the known value: 4 minutes/(time taken for 75%) = 25%/75%. Now, we need to solve for the unknown variable (time taken for 75%).
5. To solve for the unknown variable, we can cross-multiply. Multiply 4 minutes by 75% and 25% by the time taken for 75%: (4 minutes x 75%) = (25% x time taken for 75%).
6. Calculate 4 minutes x 75%: 4 minutes x 0.75 = 3 minutes. So, 3 minutes = (25% x time taken for 75%).
7. Now, divide both sides of the equation by 25% (or 0.25) to find the time taken for 75%: 3 minutes ÷ 0.25 = 12 minutes.
So, it will take 12 more minutes for the remaining 75% of the movie to download.
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k/8-1=-3. pls anawear this paper due tomorrow
Answer: k = 32
Step-by-step explanation:
k/8 - 1 = 3 We add 1 on both sides
+1 +1
k/8 = 4 Now we have to multiply by both sides to isolate the k
x8 x8
k = 32
find the common denominator
7/8
3/10
7/10
2/3
Answer:
240
Step-by-step explanation:
To find a common denominator, you have to find a number that is a multiple of all the denominators there. So with 240, 240 divide 3 is 80, so that's a multiple, 240 divide 8 is 30, so that is also a common multiple, and 240 divide 10 is 24, so that is also a common multiple.
An eight ft board is cut into two pieces. One piece is 2 ft longer thant he other. How long are the pieces?
Answer: 6 ft and 2 ft
Step-by-step explanation:
Answer:
6ft and 2ft
Step-by-step explanation:
8ft board ÷ 2 pieces = 4ft each
4ft and 4ft boards. But one of them is longer by 2ft so:
4ft - 2ft = 2ft
4ft + 2 ft = 6ft
So, one piece is 2ft and the other piece is 6ft
Find the equation of the line that is perpendicular to y = 2x + 8 and passes though the point (8. -8).
-)
A)
yo žx - 4
y=-3x - 4
B)
y = 2x - 12
D)
y - 2x - 12
Answer:
y=2x-24
Step-by-step explanation:
y--8=2(x-8)
y+8=2x-16
y=2x-24
A recently televised broadcast of a popular television show had a 15 share, meaning that among 5000 monitored households with TV sets in use, 15% of them were tuned to the show. A 0.01 significance level is used to test an advertiser’s claim that among the households with TV sets in use, less than 20% were tuned in to the show. Find the P-value.
1.9998
0.9999
0.0001
0.0002
The p-value of the given hypothesis is; 0.9999
How to find the p-value of the statistics?The formula for the z-score of proportions is;
z = (p^ - p)/√(p(1 - p)/n)
where;
p^ is sample proportion
p is population proportion
n is sample size
We are given;
p^ = 15% = 0.15
p = 20% = 0.2
n = 5000
Thus;
z = (0.15 - 0.2)/√(0.2(1 - 0.2)/5000)
z = -8.8388
From p-value from z-score calculator, we have;
P(Z < -8.8388) = 1 - 0.0001 = 0.9999
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