Let:
A = Original price = $253.99
r = Discount = 25% = 0.25
B = Sale price
The sale price is given by:
\(\begin{gathered} B=A-A\cdot r \\ B=253.99-253.99\cdot0.25 \\ B=253.99-63.4975 \\ B=190.49 \end{gathered}\)Answer:
$190.49
Verify
tanx + cotx = 1/ sinxcosx
\(\textit{Pythagorean Identities} \\\\ sin^2(\theta)+cos^2(\theta)=1 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ tan(x )+cot(x )~~ = ~~\cfrac{1}{sin(x )cos(x)} \\\\[-0.35em] ~\dotfill\\\\ tan(x )+cot(x )\implies \cfrac{sin(x)}{cos(x)}+\cfrac{cos(x)}{sin(x)} \\\\\\ \cfrac{sin^2(x)+cos^2(x)}{sin(x )cos(x)}\implies \cfrac{1}{sin(x )cos(x)}\)
find the curvature of r(t) = 5t, t2, t3 at the point (5, 1, 1).
K =
HELP Write a statement to represent the following expression:
4 x ( 3 + 2) - 6
The statement that represents the expression 4 x (3 + 2) - 6 is:
"Four times the sum of three and two, minus six."
To write a statement for an expression, you need to describe the expression using words in a clear and concise manner. The statement should convey what the expression means or represents. Here are the steps to follow:
Identify the expression you want to represent with a statement.
Read the expression carefully and determine what mathematical operations are being performed, such as addition, subtraction, multiplication, or division.
Write out the operations in words, such as "add," "subtract," "multiply," or "divide."
Identify any constants or variables in the expression and describe them in words. For example, if the expression is 2x + 5, you would say "two times a number plus five."
Use parentheses to clarify the order of operations. For example, if the expression is 4 x (3 + 2) - 6, you would say "four times the sum of three and two, minus six."
Proofread your statement to make sure it accurately represents the original expression and is clear and concise.
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What are the coordinates of Rx=3(G)?
Answer:
When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places. If you reflect over the line y = -x, the x-coordinate and y-coordinate change places and are negated (the signs are changed). the line y = x is the point (y, x). the line y = -x is the point (-y, -x).
Step-by-step explanation:
Hope it helps u
FOLLOW ACCOUNT PLS PLS
Andre has 60% of his goal of $70 saved for his trip. How much has he saved so far?
Answer:
42$
Step-by-step explanation:
So there's an easy way to know this.
100%--$70
60%--x
cross multiply
100x=4200
÷100 ÷100
______________
x=42
So he saved 42$. Hope this helps :D
use the graph to write a linear function that relates y to x
Answer:
f(x) = -4\(x\) - 2 or y = -4\(x\) - 2
Step-by-step explanation:
In this question, you should use the graph to write the function/equation in slope intercept form.
y = mx + b where m is the slope and b is the y intercept
To calculate the slope, you can use rise/run between any two points. I will use the points (-2, 6) and (0, -2). In these points, the "rise" would be -8 as that is the number of units they are away from each other vertically. It is negative because the line obviously has a negative slow as it is travelling from up to down. The run in this case would be 2 as that is the distance the two points are away from each other horizontally.
Then, substitute.
\(\frac{-8}{2}\) = -4, so m = -4
Now we will find the b value.
B is the y-intercept, or what the y value of the coordinate of the point that the line touches the y-axis. The coordinate is (0, -2). Therefore, the b value is 2.
an angle measures 154° more than the measure of its supplementary angle what is the measure of each angle
Answer:
Original angle = 167*
Supplementary angle = 13*
Step-by-step explanation:
180 - 154 = 26
26 / 2 = 13
13 + 154 = 167
Check
167 + 13 = 180
Ted's company has received an order to print 106 pages. Ted's company has 100 machines, each of which can print 104 pages a day.
Ted’s company can print the 106 pages in
1 day
1/10
10
100
.
In exponent form, this number of days can be represented as
10^2
10^1
10^0
10^-1
Answer:
1 day, 10^0
Step-by-step explanation:
Plato correct
Answer:
1 Day 10^0
Step-by-step explanation:
find the common difference of the arithmetic sequence 15,22,29, …
Answer:
7
Step-by-step explanation:
You want the common difference of the arithmetic sequence that starts ...
15, 22, 29, ...
Difference
The common difference is the difference between a term and the one before. It is "common" because the difference is the same for all successive term pairs.
22 -15 = 7
29 -22 = 7
The common difference is 7.
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In Exercises 7–10, use the graph of the function to find the domain and range of f and each function value.
(a) f(−1)
(b) f(0)
(c) f(1)
(d) f(2)
The domain and range of the function are [-3, 3] and [-2, 4], respectively and The function values for (a) f(-1), (b) f(0), (c) f(1) and (d) f(2) are 0, -2, 4, and 3, respectively. The total number of words used is 163.
Given that the graph of the function is shown below, the domain and range of the function need to be determined along with finding the function values for (a) f(−1), (b) f(0), (c) f(1) and (d) f(2).Graph of the function:Graph of the function for the given graph of the function, we can observe that the domain of the function is from -3 to 3 as the graph is defined within these limits.In order to find the range of the function, we need to look at the range of the y-coordinates.
The minimum value of y is -2 and maximum value of y is 4.Range of the function: [-2, 4]a) f(-1) means the function value for x = -1. As we can observe from the graph, the point where x = -1 is on the graph of the function is (1, 0). Therefore, f(-1) = 0b) f(0) means the function value for x = 0. As we can observe from the graph, the point where x = 0 is on the graph of the function is (0, -2).
Therefore, f(0) = -2c) f(1) means the function value for x = 1. As we can observe from the graph, the point where x = 1 is on the graph of the function is (2, 4). Therefore, f(1) = 4d) f(2) means the function value for x = 2. As we can observe from the graph, the point where x = 2 is on the graph of the function is (3, 3). Therefore, f(2) = 3
Thus, the domain and range of the function are [-3, 3] and [-2, 4], respectively. The function values for (a) f(-1), (b) f(0), (c) f(1) and (d) f(2) are 0, -2, 4, and 3, respectively. The total number of words used is 163.
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A pupil who scored 50 in his paper 1
exam got ill and missed paper 2.
use the line of best fit to predict what
his paper 2 mark could have been.
The graph of the pupil's score is an illustration of scatter plots
The student's expected score in paper 2 is 62
How to predict the score in the missed paperTo predict the score of the pupil in the missed paper, we simply interpret the points on the line of best fit of the scatter plot
From the graph (see attachment), we have:
Paper 2 = 62 when Paper 1 = 50
This means that the student's expected score in paper 2 is 62
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If 4 notebooks and 3 packages of pens cost $7.43 and
5 notebooks and 2 packages of pens cost $7.03, what is the
cost of 1 notebook?
Answer:
i believe its one of these!
A. $0.89 B.$0.79 C. $1.29
Step-by-step explanation:
Given fx = x-4/x^2+13x+36 , which of the following is true?
f(x) is decreasing for all x > –9
f(x) is increasing for all x < –9
f(x) is increasing for all x > –4
f(x) is decreasing for all x > –4
If fx = x-4/x^2+13x+36, then the math expression f(x) is increasing for all x > –4 is true.
What is a math expression?A mathematical expression is a sentence that combines numbers, variables, and operators to indicate the value of a factor. An equation is a mathematical expression in which two expressions are made equal.
So arrive at the above-stated conclusion:
First, we simplify the expression of the given function:
f (x) = (x - 4) /(x² + 13x +36)
Expand the denominator to get:
f (x) = (x - 4) /(x² + 9x + 4x +36)
Factorize the denominator to achieve:
f (x) = (x - 4) / [x(x + 4) + 9( x+4)
f(x) = (x - 4) / [(x + 9)(x+4)
In this simplified state, it is easy to determine that:
f(x) is increasing for all x > –4
For example
If x = 0 which is > -4, then
f(x) = (0 - 4) / [(0 + 9)(0+4)
= -4/(9*4)
= - 1.11
Where x = 5
f(x) = (5- 4) / [(15+ 9)(5+4)
= 1/216
= 0.0046
Notice that the results are no longer negative hence,
f(x) is increasing for all x > –4
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What is the value of sinD?
The value of sin(D) is 7/25 after the application of the Pythagoras theorem.
What is a Pythagoras theorem?The Pythagorean theorem is a fundamental theorem in geometry that describes the relationship between the sides of a right triangle. It claims that the hypotenuse's square length, which is the side that faces the right angle, is equivalent to the total of the squares of the lengths of the other two sides in a right triangle. The theorem can be formulated mathematically as:
c² = a² + b²
where, even the lengths for the remaining two sides (the legs) of the right triangle are a and b, and c is the length of the hypotenuse.
The Pythagorean theorem may be employed to determine the triangle's third side's length:
DE²= FD² + EF²
25² = 24² + EF²
625 = 576 + EF²
EF² = 49
EF = 7
Now, we can use the definition of sine to find sin(D):
sin(D) = opposite/hypotenuse = EF/DE = 7/25
Therefore, the value of sin(D) is 7/25.
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Dallas put g gallons of gas in his car. If the car holds 21 gallons to begin, which expression tells how much gas was in the car before Dallas bought gas?
Answer:
21
Step-by-step explanation:
tee hee
Answer:
if you are talking about distance on cars i have provided you with a chart of different cars prices and the distance they went/ Vehicle Miles per gallon Gas price, per mile
Subaru Outback 21 $0.14
Chrysler Sebring 21 $0.14
Porsche Boxster 22 $0.13
PT Cruiser 22 |$0.13
\
You pick a card at random.
3
4
5
6
What is P(odd or less than 4)?
Write your answer as a fraction or whole number.
P(Odd or Less than 4) = P(Odd) + P(Less than 4) - P(Odd and Less than 4)= 1/10 + 3/52 - 0= 13/130= 1/10, which is the final answer.
The probability that you pick an odd or less than 4 from a card at random can be calculated using the formula for the addition rule of probability that states that the probability of either of two events happening is the sum of their individual probabilities. In this case, the two events are picking an odd card and picking a card less than 4.Picking an odd card:
There are 5 odd cards in a deck of 52 playing cards, namely, Ace of hearts, 3 of hearts, 5 of hearts, 7 of hearts, and 9 of hearts. Thus the probability of picking an odd card from a deck of 52 playing cards is given by:P(Odd) = 5/52 = 5/52Reducing the above fraction to its simplest form by dividing the numerator and denominator by their greatest common factor, we obtain:
P(Odd) = 5/52 = 1/10Picking a card less than 4:There are 3 cards less than 4 in a deck of 52 playing cards, namely, Ace of hearts, 2 of hearts, and 3 of hearts.
Thus the probability of picking a card less than 4 from a deck of 52 playing cards is given by:P(Less than 4) = 3/52Reducing the above fraction to its simplest form by dividing the numerator and denominator by their greatest common factor, we obtain:P(Less than 4) = 3/52
Therefore, the probability of picking either an odd card or a card less than 4 from a deck of 52 playing cards is given by:P(Odd or Less than 4) = P(Odd) + P(Less than 4) - P(Odd and Less than 4)Where P(Odd and Less than 4) is the probability of picking a card that is both odd and less than 4.
Since there are no cards in the deck that satisfy this condition, P(Odd and Less than 4) is equal to 0.
Hence:P(Odd or Less than 4) = P(Odd) + P(Less than 4) - P(Odd and Less than 4)= 1/10 + 3/52 - 0= 13/130= 1/10, which is the final answer.
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What are geometric figures?
Brandon brought 21 chicken wings for $39.90 how much would it cost for 15 wings
Answer:
$28.50
Step-by-step explanation:
39.90/21= $1.9 per wing
1.9 x 15 wings= $28.5
Answer:
$28.5
Step-by-step explanation:
Given
21 chicken wings bought on =$39.90
Solution
So 1 wings bought on=$39.90/21
=$1.9
So 15 wingi bought on =15×1.9
=$28.5
Answer is $28.5.
theres a photo with the question <3
Answer:
p≤1 or p∠-2
Step-by-step explanation:
REMEMBER OUR GOAL IS TO LEAVE P ALONE!!
p≤1:
1. \(\frac{3p+5}{2}\geq 4\) Multiply by 2 to cancel out 1/2 which would give you \({3p+5}\geq 8\)
2. Then subtract 5 which would give you 3p≥3
3. Then divide by 3 which will FLIP the ≥ into ≤.
4. Therefore, it's p≤1.
p∠-2:
1. \(\frac{p-6}{4}\leq -2\) Multiply by 4 to cancel out the denominator which would give you \(p-6\)∠-8
2. Add 6 to both sides which results in p<-2
She selects 150 trees at random from her orchard and uses this fertilizer on those trees and estimates the following regression: Y
^
i
=600+4.93X i
, where Y
^
i
denotes the predicted number of apricots obtained from the I th tree and X i
denotes the number of units of fertilizer used on the I th tree. A. H 0
:β 1
≥5.14 and H 1
:β 1
<5.14. B. H 0
:β 1
>4.93 and H 1
:β 1
≤4.93. C. H 0
:β 1
=5.14 and H 1
:β 1
=5.14. D. H 0
:β 0
=4.93 and H 1
:β 0
=4.93. Suppose the standard error of the estimated slope is 0.74. The t-statistic associated with the test Wendy wishes to conduct is (Round your answer to two decimal places. Enter a minus sign if your answer is negative.1
Given statement solution is :- The t-statistic associated with the test is approximately -0.28.
The t-statistic, which is used in statistics, measures how far a parameter's estimated value deviates from its hypothesised value relative to its standard error. Through the Student's t-test, it is utilised in hypothesis testing. In a t-test, the t-statistic is used to decide whether to accept or reject the null hypothesis.
To find the t-statistic associated with the test, we need to calculate the test statistic using the estimated slope coefficient, the null hypothesis, and the standard error.
The estimated slope coefficient is 4.93.
The null hypothesis is H₀: β₁ ≥ 5.14 (stating that the true slope coefficient is greater than or equal to 5.14).
The predicted slope's standard error is 0.74.
The formula to calculate the t-statistic is:
t = (estimated slope - hypothesized slope) / standard error
Plugging in the values:
t = (4.93 - 5.14) / 0.74
t = -0.21 / 0.74
t ≈ -0.28 (rounded to two decimal places)
Therefore, the t-statistic associated with the test is approximately -0.28.
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Find the value of k (k,3) and (2,3) is 5
A: 5
B: 6
C: 7
D: 8
Answer:
its option c (7)
Step-by-step explanation:
trust your bro
Answer:
\(C)~ 7\)
Step-by-step explanation:
\(\text{Given that,}~~ (x_1,y_1) = (k,3)~ \text{and}~ (x_2 ,y_2) = (2,3)\\\\\text{Distance,}~ \\\\~~~~~~~~d= \sqrt{(x_2 -x_1)^2 + (y_2 -y_1)^2}\\\\\implies 5=\sqrt{(2-k)^2 + (3-3)^2}\\\\\implies 5=\sqrt{(2-k)^2 +0}\\\\\implies 5 = \sqrt{(2-k)^2}\\\\\implies 5=|2-k|\\\\\implies \pm 5=2-k \\\\\implies 2-k =5~~~~~~\text{or}~~~~~~~~2-k = -5\\\\\implies k = 2-5~~~~~~\text{or}~~~~~~~~k = 2+5\\\\\implies k = -3~~~~~~~~~\text{or}~~~~~~~~k = 7\)
What is AAS ASA SSS SAS?
The rules AAS, ASA, SSS and SAS are congruence rule of triangle and the each rules has been explained
The rules AAS, ASA, SSS and SAS are congruence rule of triangle
SSS rule is side-side-side rule, it states that if three sides of the one triangle and three sides of the other triangles are equal, then both triangles are congruent
SAS rule is side-angle-side rule, it states that if two sides and one included angles between the sides of the one triangle is equal to the two sides and one included angles between the sides of the other triangle, then both triangles are congruent
ASA rule is angle-side-angle rule, it states that if two angles and one included side between the angle of the one triangle is equal to the two angles and one included sides between the angles of the other triangle, then both triangles are congruent
AAS rules is angle-angle-side rule, it states that if two angles and one non included sides of the one triangle is equal to the two angles and one non included sides of the another triangle, then both triangles are congruent
Therefore, the AAS, ASA, SSS and SAS are the rules of congruence of the triangle
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The quality of computer disks Is measured by sending the disks through a certifier that counts the number of missing pulses. A certain brand of computer disk has averaged 0. 1 missing pulse per disk. Find the probability that two next inspected disk will have no missing pulse, Find the probability that the next inspected disk wkl have more than one missing pulse, Find the probabihty that neither of the next two inspected disks will contain any missing pulse
Using Poisson distribution ,
a) The probability that two next inspected disk will have no missing pulse is 0.905...
b) The probability that the next inspected disk will have more than one missing pulse is 0.005..
c) The probabihty that neither of the next two inspected disks will contain any missing pulse is 0.819..
Poisson distribution:
It can be defined as a probability distribution resulting from a Poisson experiment. A Poisson experiment is a statistical experiment that divides the experiment into two categories Success or Failure. The Poisson distribution is a restricted process of the binomial distribution.
A Poisson random variable “x” defines the number of successes in the experiment.
Poisson Probability function is represent as given below i.e Mathematically,
P(x, lamda ) = (e ⁻λ (λ ))/x!
where, λ --> an average rate of value
x --> Poission random variable
e ----> base for the logarithm
we have given that,
The quality of computer disk is measured .
averaged missing pluse per disk in a computer disk brand (λ) = 0.1
let x be Poisson random variable which represents the number of missing pulse.
a) we want to find the probability that two next inspected disk will have no missing pulse
P(x= 0 ) = (e⁰·¹ )(0.1)^0/0! = 1/e⁰·¹ ×1/1
=> P(x=0) = 0.905
b) The probability that the next inspected disk will have more than one missing pulse, P(x>1)
P(x>1) = 1 - P(x=0) - P(x=1) = 1 - 0.905 - e⁰·¹(0.1)/1!
= 1 - 0.905 - 0.0905 = 0.0045 ~ 0.005
c) We can assume the disks are independent. the probabihty that neither of the next two inspected disks will contain any missing pulse
P(X = 0 on first disk and x = 0 on second disk) = P(X = 0).P(X = 0) =(0.905)².
= 0.819
Hence, we got all the required probabilities for different cases that is for a) 0.905 b) 0.005 c) 0.81
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Fitting a straight line to a set of data yields the following prediction line. Complete (a) through (c) below. =8+7X, a. Interpret the meaning of the Y-intercept, bo. Choose the correct answer below. OA. The Y-intercept, bg = 7, implies that when the value of X is 0, the mean value of Y is 7. OB. The Y-intercept, bg = 8, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 8 units. OC. The Y-intercept, bg = 8, implies that the average value of Y is 8. OD The Y-intercept, bg=8, implies that when the value of X is 0, the mean value of Y is 8. b. Interpret the meaning of the slope, b₁. Choose the correct answer below. O A. The slope, b, 7, implies that for each Increase of 1 unit in X, the value of Y is expected to decrease by 7 units OB. The slope, b₁ = 7, implies that for each Increase of 1 unit in X, the value of Y is expected to increase by 7 units. OC. The slope, b₁ =7, implies that the average value of Y is 7. OD. The slope, b, 8, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 8 units. c. Predict the mean value of Y for X-5. =
(a) The value of X is 0, the mean value of Y is 8. (b) The value of Y is expected to increase by 7 units. (c) To predict the mean value of Y for X = 5, we substitute X = 5 into the prediction line equation: Y = 8 + 7 * 5 = 43.
(a) The Y-intercept, bo, represents the value of Y when X is 0. In this case, bo = 8, so it implies that when X is 0, the mean value of Y is 8.
(b) The slope, b₁, represents the change in Y for each unit increase in X. In this case, b₁ = 7, so it implies that for each increase of 1 unit in X, the value of Y is expected to increase by 7 units.
(c) To predict the mean value of Y for X = 5, we substitute X = 5 into the prediction line equation Y = 8 + 7X. Therefore, Y = 8 + 7 * 5 = 43. This means that when X is 5, the mean value of Y is predicted to be 43.
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Complete the statements about finding the equation of the line that is parallel to line n and passes through point (2, –3). The slope of the graphed line is . The slope of the parallel line is . An equation that can be used to find the y-intercept of the parallel line is . The y-intercept of the parallel line is . The equation of the parallel line is .
This is for edge 2020 and It's urgent! Pleeeeeeeaese!
Answer: 1. 5/2
Step-by-step explanation:
Answer: 1. 5/2
2. 5/2
3. -3= (5/2)(2) + b
4. -8
5. y= (5/2)x - 8
Step-by-step explanation:
The slope of the graphed line is 5/2
The slope of the parallel line is 5/2
An equation that can be used to find the y-intercept of the parallel line is -3=(5/2)(2) + b
The y-intercept of the parallel line is -8
The equation of the parallel line is y= (5/2)x - 8
Identify the solution to the following inequality: -1/2 (x+3) > x - 3
A. X < 1
B. X > 3
C. X > 1
D. X< 3
Answer:
A
Step-by-step explanation:
- \(\frac{1}{2}\) (x + 3) > x - 3 ( multiply both sides by 2 to clear the fraction )
- (x + 3) > 2x - 6 ← distribute parenthesis on left side by - 1
- x - 3 > 2x - 6 ( subtract 2x from both sides )
- 3x - 3 > - 6 ( add 3 to both sides )
- 3x > - 3
divide both sides by - 3, reversing the symbol as a result of dividing by a negative quantity
x < 1
Answer:
A. x<1
Step-by-step explanation:
-1/2 (x+3) > x - 3
(-1/2)x-3/2>x-3
Multiply both sides by 2:
-x-3>2x-6
add both sides by 3:
-x-3+3>2x-6+3
-x>2x-3
minus both sides by 2x
-x-2x>2x-2x-3
-3x>-3
x<1
The point (5,1) is equidistant from (1,y) and (10, -3). determine the value of y.
The value of y in the given coordinate points is 5.
Value of y
The value of y in the given coordinate points is calculated as follows;
Point (5,1) is equidistant from (1,y) and (10, -3).
The value of y is calculated as follows;
(x₁ + x₂)/2, (y₁ + y₂)/2 = (5, 1)
(y - 3)/2 = 1
y - 3 = 2
y = 5
The coordinates points are (1, 5) and (10, - 3)
Thus, the value of y in the given coordinate points is 5.
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A medical researcher collects health data on many women in each of several countries. One of the variables measured for each woman in the study is her weight in pounds. The following list gives the five-number summary for the weights of women in one of the countries. Country A: 100, 110, 120, 160, 200 About what percentage of Country A women weigh between 110 and 200 pounds
The percentage of Country A women weigh between 110 and 200 pounds is 80%.
How the percentage is computed:The percentage is the value of one quantity compared to a larger quantity.
The percentage is the quotient multiplied by 100.
Five-number summary for the weights of women in Country A = 100, 110, 120, 160, 200
The class value of women who weigh between 110 and 200 pounds = 4
The class value of women who weight less than between 110 and 200 pounds = 1
The ratio of women who weight between between 110 and 200 pounds and those who weigh less is 4:1
The sum of ratios = 5 (4 + 1)
The percentage of women weighing between between 110 and 200 pounds = 80% (4/5 x 100).
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Solve the simultaneous equations by substitution
x-3y=-7
x=5-y
Answer:
x = 2, y = 3
Step-by-step explanation:
x - 3y = - 7 → (1)
x = 5 - y → (2)
Substitute x = 5 - y into (1)
5 - y - 3y = - 7
5 - 4y = - 7 ( subtract 5 from both sides )
- 4y = - 12 ( divide both sides by - 4 )
y = 3
Substitute y = 3 into (2)
x = 5 - 3 = 2
solution is (2, 3 )
The weekly sales at two movie theaters were recorded for a random sample of 25 weeks. A 95 percent confidence interval for the difference in mean weekly sales for the two movie the With all else remaining constant, which of the following would have resulted in a confidence interval narrower than the calculated interval? A) A sample size less than 25 B) A sample size greater than 25 C) An increase to 99 percent confidence D) A sample mean greater than $1,937E) A sample mean less than $1,937
Answer:
Correct Answer:A sample size greater than 25
Step-by-step explanation:
hope this helps