Alpha one is equal to two is the null hypothesis and the alternate hypothesis says at least one pair is different.
Classification modes X is alpha + ц T and X is ц T + alpha
Therefore , P value is 01.0197
Therefore, This value is smaller than 0.0 , this is the decision rule.
The null hypothesis will be rejected at that point since there is enough data to say that the therapy had a meaningful impact.
The null hypothesis means that there will be no observed effect in our experiment. In a mathematical formulation of the null hypothesis, there will typically be an equal sign. This hypothesis is denoted by H0.
The alternate hypothesis means that there will be an observed effect for our experiment. In a mathematical formulation of the alternative hypothesis, there will typically be an inequality, or not equal to symbol. This hypothesis is denoted by either Ha or by H1.
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A coffee shop sells various types of hot beverages. For one particular drink, the store owners are trying to determine the price that will result in the best sales. The revenue, cost, and profit functions for this drink, based on price, are represented on the graph. Using the graph, which price should result in the maximum profit for the sales of this drink?
A graph shows the Price per Drink in dollars on the x-axis and the Total in dollars on the y-axis. A parabola R of x vertex at (3.5, 2,800) intercepts the x-axis. Another parabola P of x vertex at (4, 1,600) and C of x intersect both parabolas
A.
$2.85
B.
$3.60
C.
$4.00
D.
$5.80
Answer:
C. $4.00
Step-by-step explanation:
Profit, which is given by [tex]P(x)[/tex], is maximized when the price per drink is $4.00, as shown on the graph.
The table shows the ingredients for one batch of barbecue sauce. Anne has 9 cups of ketchup and makes the greatest number of whole batches of barbecue sauce possible. How much ketchup remains?
---------------------------------------------
Ingredients Amount
Brown Sugar 1/4 c
Cider Vinegar 1/2 c
Ground Cumin 1 tsp
Ketchup 2/3 c
Pepper 1 tsp
Answer:
1/2
Step-by-step explanation:
9 x 3 x 1/2 = 27 x 1/2 = 27/2 = 13 1/2
13 1/2 - 13 = 1/2
1/2 cups of ketchup are remaining.
find the value of x,y and z
Answer: Z=80
Step-by-step explanation:
If me and my brother pay for groceries and the total was 443 and I pay 243 and he pays 200 but we get paid back 75 each how much should I get paid
Write an inequality that could be used to represent all solutions for x: the quotient of a number and three minus twelve is less than 12
We can write the given statement as inequality as -
-(x/9) < 12
What is linear inequality? What is the law of Reversal and law of Trichotomy? What is the general equation of a Straight line?Linear inequalities are defined as expressions in which two linear expressions are compared using the inequality symbols.
y > mx + cy < mx + cy ≥ mx + cy ≤ mx + cReversal property : If (a > b) then (b < a) and if (a < b) then (b > a).
Law of Trichotomy : The "Law of Trichotomy" says that - only one of the following is true : (a < b) or (a = b) or (a > b).
The general equation of a straight line is y = mx + c
Other possible equations of lines are -
(y - y₁) = m(x - x₁) {Point - slope form}(y - y₁) = (y₂ - y₁) × (x - x₁)/(x₂ - x₁) {Two point - slope form}x/a + y/b = 1 {intercept form}x cos(β) + y sin(β) = L {Normal form}We have the following statement -
"the quotient of a number and three minus twelve is less than 12".
We can write the inequality as -
-(x/9) < 12
Therefore, we can write the given statement as inequality as -
-(x/9) < 12
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-5x - Зу = 9
4x 18y = 54
can someone help out by using the substitution method?
By using substitution method, x = 0, and y = -3 are the solutions of the given system of equations.
What is substitution method?
In order to solve a system of equations, the substitution approach is typically utilized in mathematics. The first equation involving the variable must be solved using this method before the variable's value is substituted in the second equation.
Consider the given system of equations
-5x - 3y = 9 ..(1)
4x - 18y = 54 ..(2)
From equation (1),
-5x = 9 + 3y
[tex]x =- \frac{9+3y}{5}[/tex] ..(3)
Plug the value of x in equation (2),
[tex]4(-\frac{9+3y}{5})- 18y = 54\\-36-12y-90y = 270\\ -36 - 102y=270\\102y = -36-270\\102y=-306\\y = -3[/tex]
Plug y = -3 in equation (3)
[tex]x = -\frac{9+3(-3)}{5} =-\frac{9-9}{5} =0[/tex]
x = 0
Hence, by substitution method x = 0 and y = -3.
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find an equation in standard form for the ellipse with the vertical major axis of length 6 and minor axis of length 4. (2 points)
Standard form of ellipse has equation [tex]\frac{y^2}{a^2} +\frac{x^2}{b^2} =1[/tex] where, a and b are the halves of the length of major and minor axis respectively.
Given that,
Length of major axis(2a)=6.
So
a=6/2
=3
Length of minor axis(2b)=4.
So
b=4/2
=2
Putting in equation of standard ellipse. We get
[tex]\frac{y^2}{3^2} +\frac{x^2}{2^2} =1[/tex]
After simplifying
4y² + 9x² = 36
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when comparing the means of two populations, it is often preferable to use a two-sample t test, rather than a one-way anova f test because the non-pooled t statistic does not require the assumption that the populations have equal .
When comparing the means of two populations, it is often preferable to use a two-sample t test, rather than a one-way ANOVA f test because the non-pooled t statistic does not require the assumption that the populations have equal Variances.
What are the assumption of non-pooled t statistics are following:The observations should be independent and randomly selected.The parent population from which observations are taken is normally distributed.The observations should be continuous.In non-pooled t statistic, the population variances need not to be equal.The assumptions of one-way ANOVA F test are following:The observations should be independent and randomly selected.The population from which observations are taken is normally distributed.The observations are continuous in nature.The variances of population are equal.To know more about Statistics here: https://brainly.com/question/218301
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2 websites sell the same type of headphone cost of headphone in website A is 49.95 and the postage is 4.39. The headphones in website B is 47.68 and the postage is 6.95. Including the postage which website is cheaper and by how much
Answer:
Website A is cheaper by 29 cents
Step-by-step explanation:
A
49.95 + 4.39 = 54.34
B
47.68 + 6.95 = 54.63
54.63 - 54.34 = 0.29
Answer:
the difference is 0.29 cents
website A is cheaper
Step-by-step explanation:
(47.68 + 6.95) - (49.95 + 4.39)
54.63 - 54.34 = 0.29
The tree in your friend's yard casts a shadow that is 27 feet long. Your friend is 5 feet tall and casts a shadow that is 4. 5 feet long. What is the height of the tree?
By using unitary method, it can be calculated that Height of the tree is 30 feet
What is unitary method?
Unitary method is the process in which the value of single unit can be calculated from the value of multiple unit and the value of multiple unit can be calculated from the value of single unit. Sometimes Value of single unit can be less than the value of multiple unit. For example - The relation between the cost of a commodity and the quantity of the commodity
Sometimes Value of single unit can be more than the value of multiple unit. For example - The relation between the number of men and the number of days taken by those men to do a certain job.
This is a problem on unitary method
A shadow of 4.5 feet long is casted by my friend 5 feet tall
A shadow of 1 feet is casted by an object of height [tex]\frac{5}{4.5} \ feet[/tex]
A shadow of 27 feet is casted by a tree of height [tex]\frac{5}{4.5}\times 27 \ feet[/tex]
A shadow of 27 feet is casted by a tree of height 30 feet
Height of the tree is 30 feet
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A cylindrical rod of steel (e = 207 gpa) having a yield strength of 310 mpa is to be subjected to a load of 11,100 n. If the length of the rod is 500 mm, what must be the diameter to allow an elongation of 0. 38 mm?.
the diameter to allow an elongation of 0. 38 mm therefore required diameter is 7.65 mm
Given the data in the question;
F = 11100 N
l₀ = 310 mm = 0.31 m
E = 207 GPa = 207 × 10⁹ N/m²
Δl = 0.38 mm = 0.0005 m
So, lets assume the deformation is elastic;
d₀ = √( [4l₀F] / [πEΔl] )
we substitute
d₀ = √( [4 × 0.38 × 11100] / [π × (207 × 10⁹) × 0.0005]] )
d₀ = √( 10123.2 / 172787595.947 )
d₀ = √( 5.85875 × 10⁻⁵ )
d₀ = 0.007654 m
d₀ = ( 0.007654 × 1000 )mm
d₀ = 7.65 mm
Therefore, required diameter is 7.65 mm
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(pythagorean theorem mc) a tent pole that is 5 feet tall is secured to the ground with a piece of rope that is 13 feet long from the top of the tent pole to the ground. determine the number of feet from the tent pole to the rope along the ground. 12 feet 8 feet 25 feet 30 feet
Using the Pythagorean Theorem, the number of feet from the tent pole to the rope along the ground is 12 feet.
In the given question we have to determine the number of feet from the tent pole to the rope along the ground.
From the question;
A tent pole that is 5 feet tall is secured to the ground with a piece of rope that is 13 feet long from the top of the tent pole to the ground.
So the value of Hypotenuse(H) = 13 feet
Perpendicular(P) = 5 feet
Using the Pythagorean Theorem
H^2=P^2+B^2
Putting the value
(13)^2=(5)^2+(B)^2
169 = 25+B^2
Subtract 25 on both side, we get
B^2=169-25
B^2=144
Taking square root on both side, we get
B=12
Hence, the number of feet from the tent pole to the rope along the ground is 12 feet.
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Select the correct answer. A parabola declines through (negative 2, 4), (negative 1 point 5, 2), (negative 1, 1), (0, 0), and rises through (1, 1), (1 point 5, 2) and (2, 4) on the x y coordinate plane. The function f(x) = x2 is graphed above. Which of the graphs below represents the function g(x) = x2 − 3 ? A parabola declines through (negative 5, 4), (negative 4 point 5, 2), (negative 4, 1), (negative 3, 0), (negative 2, 1), (negative 1 point 5, 2) and (negative 1, 4) on the x y coordinate plane. W. A parabola declines through (negative 1, 4) and (0, 3) and rises through (1, 4) on the x y coordinate plane. X. A parabola declines through (negative 2 point 5, 4), (negative 2, 1), (negative 1, negative 2), (0, negative 3) and rises through (1, negative 2), (2, 1) and (2 point 5, 3) on the x y coordinate plane. Y. A parabola declines through (1, 4), (1 point 5, 2), (2, 1) and (3, 0) and rises through (4, 1), (4 point 5, 2) and (5, 4) on the x y coordinate plane. Z. A. W B. X C. Y D. Z Reset Next
Answer:
the answer is y
Step-by-step explanation:
got it right on edmentum :)
What is the value of X
Answer:
x = 22/5; m∠TKW=m∠XHK = 15.2°
Step-by-step explanation:
Angles TKW and XHK are corresponding angles (as they lie on the same side of the traversal and on the bottom left side of their respective lines) and are thus congruent and equal.
By setting the two equations equal to each other, we can find the value.
After this, we can plug in x for any one of the equations and find the measure of both angles:
[tex]8x-20=3x+2\\8x=3x+22\\5x=22\\x=\frac{22}{5} \\\\TKW=8(\frac{22}{5})-20\\ TKW=\frac{176}{5}-20\\ TKW=\frac{76}{5}=15.2\\ TKW=XHK[/tex]
Four more than twice the sum of a number and three is negative 5
Answer: It is A
Step-by-step explanation:
Segment BD bisects angle ABC measure angle ABC equals 7x. The measure angle ABD equals 3x+25. Find the measurement of angle DBC
The measurement of angle DBC is 100°. It can be obtained by the properties of bisector of an angle and algebriac multiplication.
What is angle bisector?
An angle bisector is the ray or line segment that divides the angle into two equal parts.
Since the segment BD bisects angle ABC hence,
∠ABC = ∠ABD+∠DBC ..... (1)
Also, since segment BD bisects angle ABC hence,
∠ABD = ∠DBC
Use this fact in equation (1)
∠ABC = ∠ABD+∠ABD
∠ABC =2 ∠ABD
Now, substitute values and use algebriac multiplication.
7x = 2(3x+25)
7x = 6x+50
7x - 6x= 50
x=50
Now, substitute the value of x in the expression of ∠ABD.
∠ABD = 3x+25
∠ABD = 3(50)+25
∠ABD = 100
Now, since ∠ABD = ∠DBC hence, ∠DBC = 100.
Hence, the measurement of angle DBC is 100°.
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Which ordered pair makes the equation equal?
y = x - 2
Select one:
A.
(7, 9)
B.
(5, 3)
C.
(7, 14)
D.
(5, 7)
Answer:
B: (5,3)
Step-by-step explanation:
We just fill in the coordinates
A: (7,9)
9=7-2
9=5
not true
B: (5,3)
3=5-2
3=3
true
C: (7,14)
14=7-2
14=5
not true
D: (5,7)
7=5-2
7=3
not true
so b is the only correct answer
hopes this helps please mark brainliest
5 divided by 19 vvchgdvbdvvvdbbxbvxvvdhhsjjshhhdbhshhhdhhshshhshdggdhshgdgfduhf
Given the explicit formula for an arithmetic sequence find the first five terms and the
52nd term:
an = -5n-22
Answer:
a₁ = -27
a₂ = -32
a₃ = -37
a₄ = -42
a₅ = -47
a₅₂ = -282
Step-by-step explanation:
An explicit formula for an arithmetic sequence allows you to find the nth term of the sequence.
Given explicit formula:
[tex]a_n=-5n-22[/tex]
To find the first 5 terms, substitute n = 1 through 5 into the given formula:
[tex]\begin{aligned}\implies a_1&=-5(1)-22\\&=-5-22\\&=-27\end{aligned}[/tex]
[tex]\begin{aligned}\implies a_2&=-5(2)-22\\&=-10-22\\&=-32\end{aligned}[/tex]
[tex]\begin{aligned}\implies a_3&=-5(3)-22\\&=-15-22\\&=-37\end{aligned}[/tex]
[tex]\begin{aligned}\implies a_4&=-5(4)-22\\&=-20-22\\&=-42\end{aligned}[/tex]
[tex]\begin{aligned}\implies a_5&=-5(5)-22\\&=-25-22\\&=-47\end{aligned}[/tex]
To find the 52nd term, substitute n = 52 into the given formula:
[tex]\begin{aligned}\implies a_{52}&=-5(52)-22\\&=-260-22\\&=-282\end{aligned}[/tex]
Can anybody help me with this?
The Height of trees are equal after 4 years and the height is 54 inches.
What is linear equation?A linear equation is a equation which draws straight line on the plot
when plotted.
Given,
Height of tree A at the time of planting = 38 inches
Height of tree B at the time of planting = 22 inches
Each year tree A grow = 4 inches
Each year tree B grow = 8 inches
Let's make an equation for the height of the trees,
H = 38 +4t
H = 22+8t
Now the time when height of both the trees will equal
38 + 4t = 22 + 8t
4t = 16
t = 4
Hence , After 4 years the height of both the trees will equal and the height of both the trees after 4 years will be 54 inches.
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Gianna can wash 6 cars in 2 hours. At this rate, how many cars can Gianna wash in 5 hours?
Gianna washes 15 cars in 5 hours as her rate of washing cars is 3 cars per hour.
What is unitary method?
The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
According to the given question:
Gianna can wash 6 cars in 2 hours
Therefore, in 1 hour she can wash 6/2 cars which is 3 cars.
Gianna's rate of washing cars is 3 cars per hour
Hence by unitary method, Gianna at this rate can washes 5 x 3 cars that is 15 cars.
Gianna washes 15 cars in 5 hours as her rate of washing cars is 3 cars per hour.
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In the figure below, points D, B, E, F, and lie in plane X.
Points A and C do not lie in plane X.
For each part below, fill in the blanks to write a true statement.
The blanks are filled as below
(b) G and E are distinct points that are collinear.(c) F, D, B, and G are distinct points that are coplanar.(d) Suppose line AD is drawn on the figure. Then AD and AC are distinct lines that intersect.What are collinear points?Collinear points are those that are situated along a single straight line.
Collinear points are those that are on a line either close to or far from another point, it can be more than two points.
While coplanar points imply lying on the same plane
In the diagram,
E, F, and G are collinear points
D, B, E, F, and G are coplanar points
A, B, and C are another collinear points
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REASONING 11. Can the value of o*g_{2}(- 4) * befounc ? What about the value of log ? Why or why not ? What does this tell you about the domain of log ?
Melissa is planning to rent out a limo for her friends and herself for prom. Limousine rates charge a 450 flat rate plus an additional 30 cents for every mile traveled. If Melissa aid the limousine driver $200 for prom, how many miles did she travel that night?
The number of miles Melissa travelled that night is approximately 667 miles.
How to find the distance travelled by Melissa?Melissa is planning to rent out a limo for her friends and herself for prom.
Limousine rates charge a 450 flat rate plus an additional 30 cents for every mile travelled.
Melissa aid the limousines driver $200 for prom. The number of miles she travel can be calculated as follows;
using equation,
y = 450 + 0.3x
where
x = number of miles travelledy = total costTherefore,
200 + 450 = 450 + 0.3x
650 = 450 + 0.3x
650 - 450 = 0.3x
200 = 0.3x
x = 200 / 0.3
x = 666.666666667
x = 667 miles
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The pink figure is a dilation image of the black figure. The labeled point is the center of dilation. Tell whether the dilation is an enlargement or reduction. Then find the scale factor of the dilation.
Clearly, it is a reduction with scale factor 2
The rightmost line of the black figure has 8 units and pink has 4 units similarly the first horizontal link of black has 4 while pink has 2 units. By labeling the sides of both figures and finding the ratio of the sides of the black figure to the pink figure is 2 so it is deduced that the scale factor is 2 and its reduction as black figure is an enlargement of pink.
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The pink figure is a dilation image of the black figure. The labeled point is the center of dilation. The dilation is a reduction with scale factor 2.
In mathematics, what is dilation?In mathematics, dilation means Reducing the object's size by dilation is a change. The items are enlarged or shrunk through dilation. An image that retains the original shape is created by this alteration. The size of the form does differ, though.
The rightmost line of the black figure has 8 units and pink has 4 units similarly the first horizontal link of black has 4 while pink has 2 units. By labeling the sides of both figures and finding the ratio of the sides of the black figure to the pink figure is 2 so it is deduced that the scale factor is 2 and its reduction as black figure is an enlargement of pink.
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Find the length of the segment connecting (-4, 3) and (-5,2). Provide
an answer accurate to the nearest tenth.
The length of the segment connecting (-4, 3) and (-5,2) is 1.4.
How to find length of segment?The length of a line segment can be measured by measuring the distance between its two endpoints.
Therefore, the length of the segment connecting (-4, 3) and (-5,2) can be found as follows:
length of the segment = √(2 - 3)² + (-5 + 4)²
length of the segment = √(-1)² + (-1)²
length of the segment = √1 + 1
length of the segment = √2
length of the segment = 1.41421356237
length of the segment = 1.4
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Estimate a 5 % tip on a bill of 83.46 by first rounding the bill amount to the nearest ten dollars.
The estimate of a 5 % tip on a bill of 83.46 by first rounding the bill amount to the nearest ten dollars is; 4 dollars.
What is the estimate of a 5% tip in a bill of 83.46 as required?It follows from the task content that the estimate of a 5 % tip on a bill of 83.46 by first rounding the bill amount to the nearest ten dollars is to be determined.
First, the bill amount; 83.46 must be rounded to the nearest ten dollars so that we have;
83.46 which is approximately; 80 dollars when rounded to the nearest ten.
Therefore, 5% of the required bill is; (5/100) × 80
= 4 dollars.
Therefore, the required estimate of the tip is; 4 dollars.
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Which set of ordered pairs represents a function?
The set of ordered pairs which represents a function as required in the task content is; { (-2, 0), (-5, -5), (-1, 3), (2, 0) }.
Which set of ordered pairs represents a function?It follows from the task content that the set of ordered pairs which represents a function is to be identified among the answer choices.
It is noteworthy to know that a function is a special kind of relation in which case each input value is assigned only one output value.
Put simply, no one input value has more than one output value assigned to it.
On this note, the answer choice which correctly represents a function among the answer choices is; { (-2, 0), (-5, -5), (-1, 3), (2, 0) }.
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The wholesale price for a desk is $137 . A certain furniture store marks up the wholesale price by 16% . Find the price of the desk in the furniture store.
The marked-up price of the desk in the furniture store is $158.92.
What is the markup?The markup is the difference added to the cost of a product or service.
The markup represents the seller's profit on the cost.
The markup differs from the margin, which is the ratio of the seller's profit to the sales price.
The wholesale price of a desk = $137
Markup rate = 16%
Marked-up price = $158.92 ($137 x 1.16)
Thus, the desk is sold at the marked-up price of $158.92.
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The Algebra 3-4 PLC had to write new unit tests for the
district. Mr. Bihn took eight hours to write one new test.
Mrs. Inscoe took five hours to write one new test. How
long would it have taken them had they worked
together?
They both Bihn and Inscoe can do same work in 3(1/13) hours.
How to solve work time problems?
Time and work problems is very easy to solve.First take the LCM of given days.It gives the total part of work.Next calculate efficiency of given persons by using the formula.Efficiency = (work)/(time)
Bihn can write one test = Eight hours
Bihn's one hour work = 1/8
Inscoe can write one test = Five hours
Inscoe's one hour work = 1/5
Bihn and Inscoe 's one hour work = 1/8 + 1/5
= (5 + 8)/40
= 13/40
Both Bihn and Inscoe can do same work in 40/13
= 3(1/13) [13 * 3 + 1]
Hence, they both Bihn and Inscoe can do same work in 3(1/13) hours.
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