Step-by-step explanation:
-33 + -20 is -53. and I don't how
From x = -10 to x=-5
if you look at the results section of a psychology research article, two signs that scores are significantly different are that (a) the error bars of the groups will not overlap, and (b) the p-value will be less than 0.05.
If Two signs that scores are significantly different then (a) the error bars of group will not overlap
Error bars are graphical representations of data variability that are used to indicate the error or uncertainty in a reported measurement on graphs.
The estimated error in a measurement is indicated by error bars. In other words, an error bar represents the degree of uncertainty in a value.
When the standard deviation error bars overlap significantly, it is an indication that the difference is not statistically significant. To reach a conclusion, you must conduct a statistical test.
When the standard deviation error bars overlap even less, it indicates that the difference is unlikely to be statistically significant.
For significantly different group , we also have p-value greater than 0.05
So, Option (b) is incorrect.
Hence, (a) The error bars of the groups will not overlap is correct
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A lot is60 m by 39 m. A house 22 m by 8 m is built on the lot. How much area is left over?
The area left over is 2164\(m^{2}\)
What is an area?The area is the region bounded by the shape of an object. The space covered by the figure or any two-dimensional geometric shape, in a plane, is the area of the shape
Area of lot = length x width
= 60x 39
=2340\(m^{2}\)
Area of house = length x width
=22 x 8
= 176\(m^{2}\)
To find the area of space is left over, we subtract area of house from area of lot.
The space left over is, 2340\(m^{2}\)-176\(m^{2}\) = 2164\(m^{2}\)
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Can someone pls help me ASAP!
Answer:
what type of math is it?
Step-by-step explanation:
Answer:
y=x-2
Step-by-step explanation:
the equation for slope intercept is y=mx+b, where m is the slope and b is the y intercept. The y intercept is -2, (where the line comes in contact with the x axis) and the slope is determined from the equation y2-y1/x2-x1 (rise over run) With this, we can see the slope is 1. hope this helps
Please help with this question
Answer:
Divide everything by 4 to find unit rate then mutiply them all by 10
Step-by-step explanation:
Anita’s mother is 5 times older than Anita and Anita is twice as old as his sister Rita. In two years
time, the sum of their ages will be 58. How old is Anita now?
Answer:
Anita is 8.-----------------------
Let Anita be x now.
Her mother is 5 times older and in two years time she will be 5x + 2.
Rita is half the age of Anita and in two years time she will be (x/2) + 2.
The sum of ages after two years will be 58:
5x + 2 + x + 2 + (x/2) + 2 = 586x + x/2 = 5213x/2 = 52x = 52*2/13x = 8Anita is 8 years old.
The population of HaleyValley, Alabama was 4,403 in 2010. Haleyville has been experiencing a population decline of 0. 6% per year since 2000. What will be the projected population of HaleyValley in 2020?
The projected Population in 2020 is given by 4146.
What is compounding ?Compounding is the method through which interest is added to both the principle balance already in place and the interest that has previously been paid. Thus, compounding may be thought of as interest on interest, with the result that returns on interest are magnified over time, or the so-called "magic of compounding."
Compound interest is when an amount receives interest on top of it each time interest is paid on the original amount. The main (initial) sum and the interest that has previously accrued over the course of prior periods are used to compute compound interest.
Number of years to compound is 10 years from 2010 to 2020.
The population deplition is 0.6 % = next year population is 99.4% of present.
So population after 10 years = 4403 * \(.994\x^{10}\) = 4145.84 =4146
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Find the sum of the convergent series 2(-1)-1 12n2 + 1 by using a well- known function. Round your answer to four decimal places. a. 0.0713 b. 0.0907 c. 0.8288 d. 0.0768 e. 0.0831
Upon calculating the sum up to the appropriate term, we find that the sum is approximately 0.0713. So, the correct answer is a. 0.0713
It seems like there is a typo in the series notation. I assume the series you are referring to is ∑(2(-1)^n-1)/(12n^2 + 1) from n=1 to infinity. In this case, we can determine the sum using a well-known function and round the answer to four decimal places. Since the given series is an alternating series, we can use the Alternating Series Estimation Theorem to determine an approximation for the sum. The theorem states that if the absolute difference between consecutive terms is decreasing and the limit of the terms as n approaches infinity is zero, the approximation for the sum is accurate up to the first term that is less than or equal to the desired error bound (in this case, 0.0001). For this series, we can see that the absolute difference between consecutive terms decreases as n increases and the limit as n approaches infinity is zero. So, we can find the smallest value of n for which the term is less than or equal to 0.0001 and calculate the sum up to that term.
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Use Lagrange multipliers to find the point on the given plane that is closest to the following point. (Enter your answer as a fraction.)
x-y+z=3 (5,6,2)
To find the point on the given plane that is closest to the given point (5,6,2), we can use Lagrange multipliers.
Let f be the function that represents the plane x-y+z=3 and let g be the function that represents the point (5,6,2). Then, the point on the plane closest to (5,6,2) is the point that minimizes g=x2+y2+z2. We can use the method of Lagrange multipliers to solve this problem.
Let lambda be the Lagrange multiplier. Then, we need to solve the system of equations given by:
x2+y2+z2-2x-2y-2z=0x-y+z-3=0
By solving this system of equations, we obtain the point 13/14x=7/7y=11/7z=5/7, which is the closest point on the plane to the given point (5,6,2).
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A soccer player runs at 10 m/s and runs into a 80 kg referee standing on the field causing the referee to fly forward at 6.0 m/s. Assume the soccer player comes to a complete stop after impact. What would the mass of the soccer player be?
the answer is 0.6
the force would be 6.0, and acceleration would be 10 pretty much you divided force and acceleration to find your mass
m=f/a
m=6.0/10
m=0.6
What is the value of y in 6y+4
Answer:
1.5y
Step-by-step
If UW = 4x – 1 and YZ = 5x + 4, what is UW?
(I need a answer and steps to stove)
Step-by-step explanation:
The answer is 2
You will add 2 to 4 then divide 6 by 3
What’s 4(60+78)-9, I need help, I’m having a brain fart
Answer:
543
Step-by-step explanation:
4(138)-9
552-9
543
Answer:
543
Step-by-step explanation:
based on PEMDAS
paranthesis first 60+78= 138
then you would multiply 4x138=552
then you would 552-9= 543
The equation y=2e 6x−5 is a particular solution to which of the following differential equations? (A) y ′−6y−30=0 (B) 2y′−12y+5=0 (C) y′′−5y′−6y=0 (D) y′′−2y′+y+5=0
The equation y = 2e^(6x-5) is a particular solution to the differential equation (C) y'' - 5y' - 6y = 0.
To determine which differential equation the given equation is a solution to, we can substitute y = 2e^(6x-5) into each of the given differential equations and check if the equation holds.
For option (A), substituting y = 2e^(6x-5) into y' - 6y - 30 = 0 yields a non-zero result, indicating that it is not a solution.
For option (B), substituting y = 2e^(6x-5) into 2y' - 12y + 5 = 0 also results in a non-zero expression, indicating that it is not a solution either.
For option (D), substituting y = 2e^(6x-5) into y'' - 2y' + y + 5 = 0 leads to a non-zero expression, which means it is not a solution.
However, when we substitute y = 2e^(6x-5) into y'' - 5y' - 6y = 0, we obtain 0 = 0, indicating that it is indeed a solution to this differential equation.
Therefore, the particular solution y = 2e^(6x-5) corresponds to option (C) y'' - 5y' - 6y = 0.
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when Iris -12 - (-12), she got a difference of -24. Is her answer correct? If not, what mistake did she make?
Answer: Her answer is incorrect.
Step-by-step explanation: You have to distribute the negative sign to (-12), once you do that the (-12) becomes a positive making the equations -12 + 12 resulting in your answer being 0 not -24.
Write each number in standard form.
7.3 × 10 -2
Answer:
10^-9
Step-by-step explanation:
Determine whether the sequence converges or diverges. If it converges, find the limit. (If an answer does not exist, enter DNE.) {1/5, 1/2, 1/6, 1/3, 1/7, 1/4, 1/8, 1/5,...}
This sequence does not converge because it does not approach a single value as n goes to infinity. The sequence appears to oscillate between certain values, specifically {1/5, 1/2, 1/6, 1/3, 1/7, 1/4, 1/8, 1/5,...}.
Therefore, the limit does not exist (DNE).
The given sequence is {1/5, 1/2, 1/6, 1/3, 1/7, 1/4, 1/8, 1/5,...}. To determine whether this sequence converges or diverges, let's find a pattern:
The numerators are always 1. To find the pattern in the denominators, we can examine their differences: (5-2), (6-2), (7-3), (8-4), and so on. We observe that the differences are increasing by 1 each time: 3, 4, 4, 4,...
Now let's write down the denominators based on this pattern: 5, 2, 6, 3, 7, 4, 8, 5,... . The denominators repeat after every four terms, which means the sequence is periodic with a period of 4.
A periodic sequence does not have a unique limit because the terms keep oscillating between different values. Therefore, this sequence diverges, and the answer is DNE (does not exist).
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What is 8 divided by 1/2
Answer:
\(8 \div \frac{1}{2} = 8 \times \frac{2}{1} = 8 \times 2 = 16\)
find the equation of a line that passes through the point (4, 3) and is parallel to the line 2x-2y=11
Answer:
The slope of the line would be y=x-1
Step-by-step explanation:
y=x-1
Subsite
3=4-1
3=3 True,
Thus y=x-1
Soda Tak claims that Diet Tak has 40mg of sodium per can. You work for a consumer organization that tests such claims. You take a random sample of 60 cans and find that the mean amount of sodium in the sample is 41. 9mg. The population standard deviation in all cans is 5. 2mg. You suspect that there is more than 40mg of sodium per can. Find the z-score
The z-score is approximately 3.364.
To find the z-score, we can use the formula:
z = (x - μ) / (σ / √n)
Where:
x = sample mean (41.9 mg)
μ = population mean (40 mg)
σ = population standard deviation (5.2 mg)
n = sample size (60)
Substituting the given values into the formula, we get:
z = (41.9 - 40) / (5.2 / √60)
Calculating this expression, we find:
z ≈ 3.364
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the carrying capacity for a population of elk is 52. there are currently 33 elk in the population. the intrinsic growth rate of elk is 0.2 per year. how many elk will be in the herd one year from now? round to a whole number, up or down (we will accept either)
There will be 38 elk in the herd one year from now, rounded to a whole number.
To solve the given problem, we must use the formula for exponential growth or decay.
We'll use the following formula:
N = N0ert
Where,N is the final population;
N0 is the initial population;
r is the intrinsic growth rate;
e is the base of the natural logarithm; and
t is the time (in years).
According to the problem, the carrying capacity for a population of elk is 52, and there are currently 33 elk in the population.
The intrinsic growth rate of elk is 0.2 per year. We need to find out how many elk will be in the herd one year from now, rounded to a whole number.
Using the formula above, we can write:
N = 33e0.2 × 1= 37.98 ≈ 38
Therefore, there will be 38 elk in the herd one year from now, rounded to a whole number. Answer: 38.
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Gavin’s gross pay is $3851. his deductions total $756.72. what percent of his gross pay is take-home pay? responses 20% 20% 24% 24% 80% 80% 82%
Answer:
80%
Step-by-step explanation:
Gross Pay = $3851
Deductions = $756.72
Take-home Pay = $3851 - $756.72 = $3,094.28
Ratio of take-home pay to gross pay = 3,094.28/3851 = 0.8035
As a percentage = 0.8035 x 100 = 80.35%
or approximately 80% to match the answer choice
Let p be the statement "I do my chores," and let q be the statement "I get my allowance." Which statement uses p as the hypotheses and q as the conclusion?
Step-by-step explanation:
given that
p= "I do my chores"
q= "I get my allowance."
The statement that uses p as hypothesis is, if "I do my chores", which leads to the conclusion of "I get my allowance."
hence the test/ hypothesis is if "I do my chores", i get my allowance
in a different plan for area codes, the first digit could be any number from 4 through 8, the second digit was either 4 5 6 or 7, and the third digit could be any number except 2 or 7 with this plan, how many different area codes are possible?
There are 160 possibilities for area codes
We are required to find all the combinations for different area codes
It is given to us that the conditions for the tree digit area code are:
first digit could be any number from 4 through 8,
the second digit was either 4 5 6 or 7, and the third digit could be any number except 2 or 7
Using the conditions above, the digits which can be first digit of code = 4 through 8 =4,5,6,7,8
the digits which can be second digit of code= 4,5,6,7
the digits which can be third digit of code = 0,1,3,4,5,6,8,9
number of possibilities for first digit= 5
number of possibilities for second digit=4
number of possibilities for third digit= 8
Therefore, total number of possibilities of code = number of possibilities of first digit x number of possibilities of second digit x number of possibilities of third digit = 5 x 4 x 8=160
Therefore, there are 160 possibilities for area codes
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Help anyone can help me do this question,I will mark brainlest.
Answer:
3) 16π cm²
4) 240.625 cm²
Step-by-step explanation:
3. For this problem I'm going to use the formula Area = π × r²
To start off, I'm going to input our value of radius which is 4cm.
π × 4²
Finally, I'm going to square our value "4"
16π cm²
(I'm going to "leave my answer in terms of π" as the problem states but if you need the complete answer it would be about 50.24 cm²
4. For this problem I'm going to use the formula Area = π × (d/2)²
To begin, I will divide our diameter by 2 to find the radius.
17.5/2 = 8.75
Next, we are going to square our now, radius.
8.75² = 76.5625
Now, we have to multiply our squared radius by π (in this problem it states to use 22/7, so that's what we'll do :)
76.5625 × 22/7 = 240.625 cm²
So! This is our final answer!
Hope this Helps! :)
Have any questions? Ask below in the comments and I will try my best to answer.
-SGO
A beverage company wants to manufacture a new juice with a mixed flavor, using only orange and pineapple flavors. Orange flavor contains 5% of vitamin A and 2% of vitamir C. Pineapple flavor contains 8% of vitamin C. The company's quality policies indicate that at least 20 L of orange flavor should be added to the new juice and vitamin C content should not be greater than 5%. The cost per liter of orange flavor is $1000 and pineapple flavor is $400. Determine the optimal amount of each flavor that should be used to satisfy a minimum demand of 100 L of juice. A) A linear programming model is needed for the company to solve this problem (Minimize production cost of the new juice) B) Use a graphic solution for this problem C) What would happen if the company decides that the juice should have a vitamin C content of not greater than 7% ?
A beverage company has decided to manufacture a new juice with mixed flavors, which is prepared from orange and pineapple. The vitamin contents are 5% of vitamin A and 2% of vitamin C in the orange flavor, while pineapple flavor contains 8% of vitamin C.
The company's policies are to add at least 20 L of orange flavor to the new juice and limit the vitamin C content to no more than 5%. The cost of orange flavor is $1000 per liter, while the cost of pineapple flavor is $400 per liter.To satisfy a minimum demand of 100 L of juice, we must determine the optimal amount of each flavor to use.A) A linear programming model is needed for the company to solve this problem (Minimize production cost of the new juice)B) Use a graphic solution for this problem.The objective function of the optimization problem can be given as:min C = 1000x + 400yThe constraints that the company has are,20x + 0y ≥ 100x + y ≤ 5x ≥ 0 and y ≥ 0The feasible region can be identified by graphing the inequality constraints on a graph paper. Using a graphical method, we can find the feasible region, and by finding the intersection points, we can determine the optimal solution.The graph is shown below; The optimal solution is achieved by 20L of orange flavor and 80L of pineapple flavor, as indicated by the intersection point of the lines. The optimal cost of producing 100 L of juice would be; C = 1000(20) + 400(80) = $36,000.C) If the company decides that the juice should have a vitamin C content of no more than 7%, it would alter the problem's constraints. The new constraint would be:x + y ≤ 7Dividing the equation by 100, we obtain;x/100 + y/100 ≤ 0.07The objective function and the additional constraint are combined to create a new linear programming model, which is solved graphically as follows: The feasible region changes as a result of the addition of the new constraint, and the optimal solution is now achieved by 20L of orange flavor and 60L of pineapple flavor. The optimal cost of producing 100 L of juice is $28,000.
In conclusion, the optimal amount of each flavor that should be used to satisfy a minimum demand of 100 L of juice is 20L of orange flavor and 80L of pineapple flavor with a cost of $36,000. If the company decides that the juice should have a vitamin C content of no more than 7%, the optimal amount of each flavor is 20L of orange flavor and 60L of pineapple flavor, with a cost of $28,000.
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Will give brainliest
Answer:
21
Step-by-step explanation:
What are the measures of angles b and d? ∠b = 55°; ∠d = 55° ∠b = 55°; ∠d = 125° ∠b = 97°; ∠d = 97° ∠b = 83°; ∠d = 97°
In parallelogram ABCD, ∠b = 55°; ∠d = 55. So, the correct answer is (a).
We know that opposite angles of a parallelogram are congruent. In another words, opposite angles of parallelogram are equal. Therefore, we equate the angle B and angle D to each other and solve.
angle B = angle D
2n + 15 = 3n - 15
n = 30
The value of n is 30.
Now we can find the measures of angles B and D:
angle B = 2n + 15 = 2(30) + 15 = 75 degrees
angle D = 3n - 15 = 3(30) - 15 = 75 degrees
Therefore, the answer is (a) ∠b = 55°; ∠d = 55
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____The given question is incomplete, the complete question is given below:
In parallelogram ABCD measure of angle b is 2n+15 and angle d is 3n - 15. What are the measures of angles b and d? a)∠b = 55°; ∠d = 55° b) ∠b = 55°; ∠d = 125° c) ∠b = 97°; ∠d = 97° d)∠b = 83°; ∠d = 97°
Answer:
The Answer is A
Step-by-step explanation:
I just took the test! 2023Edg
evaluate y=1/4(4)^x for x=3/2
Answer:
When x = -16, y = -1.
Step-by-step explanation:
Let's plug in y = -1 into this equation
-1 = 1/4x + 3
Now, we need to solve the equation for x. To do so, we want x to be by itself on one side of the equation. We will use inverse operations to get the x by itself. First, subtract 3 from either side to under the +3 on the right side of the equation.
-1 - 3 = 1/4x + 3 - 3
-4 = 1/4x
Next, we will divide by 1/4 to undo the *1/4. Dividing by 1/4 is the same as multiplying by 4, so we will multiply each side by 4.
-4 * 4 = 1/4x * 4
-16 = x
bye now
im tyler
Please someone answer!! a b c or d?
Answer:
The answer is A
Step-by-step explanation:
Because if you see all of the choices on top of the row and you put them on a graph and you fold it on the y-axis you will see on the bottom row those are the reflection of the top row so I would go with A! I hope this helps you! Have a great day.