The coordinates of the final point after the reflections across the x-axis twice is (6, -4)
What are the coordinates of the final point?Reflecting a point across the x-axis means that we keep the x-coordinate the same, but change the sign of the y-coordinate.
So reflecting (6,-4) across the x-axis gives us the point (6,4).
Reflecting this result again across the x-axis means that we keep the x-coordinate the same, but change the sign of the y-coordinate again.
So reflecting (6,4) across the x-axis gives us the point (6,-4).
Therefore, the final point after both reflections is (6, -4).
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Reed and Cara went to a farm to pick fruit. Reed picked 2 pounds of strawberries and 1.8 pounds of blueberries and paid $15.52. Cara picked 2.5 pounds of strawberries and paid $21.95. How much does it cost per pound of strawberries?
Using a system of equations, the cost per pound of strawberries is $6.06.
What is a system of equations?A system of equations is two or more equations solved simultaneously.
A system of equations is also called simultaneous equations because they are solved concurrently or at the same time.
Strawberries Blueberries Total Cost
Reed picked 2 1.8 $15.52
Cara picked 2.5 2 $21.95
Let the unit cost per pound of strawberries = x
Let the unit cost per pound of blueberries = y
Equations:2x + 1.8y = 15.52 ... Equation 1
2.5x + 3.6y = 21.95 ...Equation 2
Multiply Equation 1 by 2:
4x + 3.6y = 31.04 ... Equation 3
Subtract Equation 2 from Equation 3:
4x + 3.6y = 31.04
-
2.5x + 3.6y = 21.95
1.5x = 9.09
x = 6.06
= $6.06
Substitute x = 6.06 in either Equation 1 or 2:
2.5x + 3.6y = 21.95
2.5(6.06) + 3.6y = 21.95
15.15 + 3.6y = 21.95
3.6y = 6.8
y = 1.89
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Question Completion:Cara picked 2.5 pounds of strawberries and 2 pounds of blueberries and paid $21.95.
find the length of the arc
(70 points)
can mark brainly
The calculated length of the arc has a value of 22.34 yards
Finding the length of the arcTo find the length of an arc, we can use the formula:
L = (θ/360) x 2πr
where L is the length of the arc, θ is the central angle in degrees, r is the radius of the circle, and π is approximately 3.14.
In this case, the central angle is 160 degrees and the radius is 8 yards. So we can plug in these values to get:
L = (160/360) x 2π(8)
Evaluate
L = 22.34 yards
Therefore, the length of the arc is approximately 22.34 yards
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if p(Bc)=0.9, find P(B)=
cos² (x)(1+tan²(x)) = 1, establish the identity
Answer:
see below.
Step-by-step explanation:
Use Trigonometric Expansion.
Verify the following identity:
[tex]cos(x)^2(tan(x)^2+1)=1[/tex]
Write tangent as [tex]\frac{sine}{cosine}[/tex]
[tex]cos(x)^2(\frac{sin(x)}{cos(x)} ^2+1)=1[/tex]
[tex]cos(x)^2(\frac{sin(x)}{cos(x)} ^2+1)=cos(x)^2(\frac{sin(x)^2}{cos(x)^2+1} )[/tex]
[tex](cos(x)^2(\frac{sin(x)^2}{cos(x)^2} +1))=1[/tex]
Put sin(x)^2/cos(x)^2 +1 over the common denominator cos(x)^2 : sin(x)^2/cos(x)^2+1 = cos(x)^2+sin(x)^2 /cos (x)^2:
cos(x)^2(cos(x)^2+sin(x)^2/cos(x)^2)=1
Cancel cos(x)^2 from the numerator to the denominator.
cos(x)^2(cos(x)^sin(x)^2)/cos(x)^2=cos(x)^2(cos(x)^2+sin(x)^2)/cos(x)^2=cos(x)+sin(x)^2:
(cos(x)^2+sin(x)^2=1
Substitute cos(x)^2 + sin (x)^2 = 1:
1 =1
5 Cindy uses leather cord to make necklaces. She has a piece of leather cord that has a length of 3 yards. Each necklace will have a length of 28 inches. How many necklaces can Cindy make? Show your work.
Answer:
First, we need to convert the length of the leather cord to inches because the length of the necklace is given in inches.
3 yards = 3 x 3 = 9 feet (since there are 3 feet in a yard)
9 feet = 9 x 12 = 108 inches (since there are 12 inches in a foot)
Now we can divide the length of the leather cord by the length of each necklace:
108 inches ÷ 28 inches = 3.857
Since we cannot make a fraction of a necklace, we round down to the nearest whole number:
3 necklaces
Therefore, Cindy can make 3 necklaces with the piece of leather cord she has.
What are two expressions that are equivalent to the expression 5(6j + 3 + j)
Answer:
5(7j+3) AND 35j +15 are both equal to the expression 5(6j + 3 + j)
Express as a product "1 - sin(a) - cos (a)"
1 - sin(a) - cos(a) can be expressed as the product 2(cos(a)(sin)(a)).
What are Trigonometric Identities?
Trigonometric Identities are equality statements that hold true for all values of the variables in the equation and that use trigonometry functions.
We can use the identity:
[tex]cos^2(a) + sin^2(a) = 1[/tex]
Substituting this into the expression 1 - sin(a) - cos(a), we get:
[tex]cos^2(a) + sin^2(a) - sin(a) - cos(a) \\\\cos^2(a) - cos(a) + sin^2(a) - sin(a) \\\\cos(a)( 1 - cos(a)) + sin(a)( 1- sin(a) )\\\\[/tex] eq2
It is given that
[tex]1 - sin(a) - cos (a)\ \text{this gives us}:\\\\1 - sin(a) = cos (a)\ \text{and} \ 1 - cos (a) = sin(a)[/tex]
Substituting these values in the eq2
[tex]cos(a)( 1 - cos(a)) + sin(a)( 1- sin(a) )\\\\cos(a)(sin(a)) + sin(a)(cos(a) )\\\\[/tex]
[tex]2(cos(a)(sin)(a))[/tex]
Therefore, 1 - sin(a) - cos(a) can be expressed as the product
[tex]2(cos(a)(sin)(a))[/tex]
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Written as a simplified polynomial in standard form, what is the result when
(z-7)² is subtracted from 62?
The simplified polynomial in standard form that represents the result of subtracting (z-7)² from 62 is -z² + 14z + 13.
What is the simplified form of the polynomial?Given that, ( z - 7 )² is subtracted from 62.
To subtract ( z - 7 )² from 62, we first need to first expand this ( z - 7 )².
( z - 7 )²
( z - 7 )( z - 7 )
z( z - 7 ) - 7( z - 7 )
Apply distributive property
z×z - z×7 - 7×z -7×-7
z² - 7z - 7z + 49
z² - 14z + 49
Now, we can substitute this expression into the original equation:
62 - (z² - 14z + 49)
Simplifying, we get:
13 + 14z - z²
-z² + 14z + 13
Therefore, the simplified polynomial is -z² + 14z + 13.
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Lines A and B are parallel.
Q8. What is the measure of ∠4?
• A). 50°
• B). 76°
• C). 126°
• D). 130°
• E). 104°
What do I need to fix??
If we simplify [tex]3(2v-4)-4(v+4)[/tex], our answer will be [tex]-5v - 20[/tex]
How do we simplify the equation?Simplification is the process of replacing a mathematical expression by an equivalent one, that is simpler, usually shorter.
The question is [tex]3(2v-4)-4(v+4)[/tex], our step of solution is as follows:
==>>3(2v-4)-4(v+4)
Open the bracket with multiplication
= 6v - 12 - 4v - 16
= 2v - 28
= 2(v - 14)
= -5v - 20
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I need help with this please
Answer:
d. 2,500
Step-by-step explanation:
The conversion formula to convert kg to g is multiply the mass value by 1000
We just multiply 2.5 by 1000
[tex]2.5\times 1000=2500[/tex]
D is correct
A certain drug is made from only two ingredients: compound A and B. There are 5 milliliters of compound A used for every 7 milliliters of compound B. If a chemist wants to make 1104 milliliters of the drug, how many milliliters of compound a needed?
Answer:
460 milliliters
Step-by-step explanation:
We know that the ratio of A to B is 5:7. This means for every 5 milliliters of A, we need 7 milliliters of B. Let's use this ratio to find how many milliliters of A we need for 1104 milliliters of the drug.
First, we need to find out how many sets of 5:7 we have in 1104 milliliters. We can do this by dividing 1104 by the total number of parts in the ratio, which is 5 + 7 = 12.
1104 / 12 = 92
This means we have 92 sets of 5:7 in 1104 milliliters of the drug. To find how many milliliters of A we need, we simply multiply the number of sets by the amount of A in each set, which is 5 milliliters.
92 x 5 = 460
Therefore, we need 460 milliliters of compound A.
Please help with number 3!! Thank you so much!
Therefοre, the expressiοn can be rewritten in terms οf the functiοn [tex]cos x[/tex]as: [tex]2cos^2 x + cos x - 2[/tex].
What is trigοnοmetry?Trigοnοmetry is a branch οf mathematics that deals with the relatiοnships between the sides and angles οf triangles. It is particularly cοncerned with the study οf angles, the trigοnοmetric functiοns (sine, cοsine, tangent, etc.), and their prοperties and applicatiοns.
Trigοnοmetry has many practical applicatiοns, particularly in fields such as physics, engineering, and astrοnοmy, where it is used tο sοlve prοblems invοlving angles, distances, and shapes. Fοr example, trigοnοmetry is used in surveying tο measure distances and heights, in navigatiοn tο determine the pοsitiοn οf ships and airplanes, and in physics tο describe the mοtiοn οf waves and οscillatiοns.
In the given questiοn,
We can use the trigοnοmetric identity [tex]cos^2 x + sin^2 x = 1[/tex] tο rewrite [tex]sin^2 x[/tex] as: [tex]sin^2 x = 1 - cos^2 x[/tex]
Substituting this intο the οriginal expressiοn gives:
[tex]cos^2 x + cos x - 1 + sin^2 x = cos^2 x + cos x - 1 + (1 - cos^2 x) = 2cos^2 x + cos x - 2[/tex]
Therefοre, the expressiοn can be rewritten in terms οf the functiοn [tex]cos x[/tex] as: [tex]2cos^2 x + cos x - 2.[/tex]
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Which one of these transformations would produce an image that is not congruent to its pre-image? (5 points) Group of answer choices A dilation followed by a reflection A rotation of 90 degrees about the origin A translation of (x − 1, y − 3) A rotation followed by a translation
The οptiοn “a dilatiοn fοllοwed by a reflectiοn” will prοduce an image that is nοt cοngruent tο its pre-image οptiοn, first οptiοn is cοrrect.
What is geοmetric transfοrmatiοn?It is defined as the change in cοοrdinates and the shape οf the geοmetrical bοdy. It is alsο referred tο as a twο-dimensiοnal transfοrmatiοn. In the geοmetric transfοrmatiοn, changes in the geοmetry can be pοssible by rοtatiοn, translatiοn, reflectiοn, and glide translatiοn.
As we knοw, the translatiοn will shift the οbject.
If rοtate the image with 90 degree abοut οrigin will change the οrientatiοn οf the image but shape will remains same.
A dilatiοn fοllοwed by reflectiοn will change the image because the transfοrmatiοn dilatiοn is used tο resize an item. Dilatiοn is a technique fοr making items appear larger οr smaller.
Thus, the οptiοn "a dilatiοn fοllοwed by a reflectiοn" will prοduce an image that is nοt cοngruent tο its pre-image οptiοn fοurth is cοrrect.
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Complete question:
Which one of these transformations would produce an image that is not congruent to its pre-image? (5 points)
[Group of answer choices]
A dilation followed by a reflection A rotation of 90 degrees about the origin A translation of (x − 1, y − 3) A rotation followed by a translationThe answer is 4 but I don’t understand why the graph is starting at -2.
Answer:
graph 4 (reflected vertically)
Step-by-step explanation:
You want the graph that represents a cosine function with no horizontal shift, an amplitude of 2, and a period of 2π/3.
AmplitudeThe amplitude of a sine or cosine function is the difference between the positive peak and the centerline. All of the graphs show functions with an amplitude of 2.
Period/FrequencyThe period of the function is the difference of x-values between the first instance of the function and the first repeat: f(x) ≡ f(x+p) has a period of p.
Graphs 1 and 3 show periods of 2π/9; graphs 2 and 4 show periods of 2π/3, as required.
Horizontal shiftThere is an interaction between horizontal shift and vertical reflection. Sine or cosine functions are effectively inverted (reflected over the x-axis) if they are shifted horizontally by 1/2 period—and vice versa.
The function in graph 3 is a sine function, or a horizontally shifted cosine function.
The function in graph 4 is a cosine function that has been shifted 1/2 perior, OR a cosine function that has been reflected over the x-axis.
Graph 4 is the only viable choice for a cosine function with the correct period, so we have to assume it starts at -2 because it has been reflected vertically over the x-axis. (There seems to be no restriction on that in the problem statement.)
__
Additional comment
Ordinarily, you might not be expected to make any assumptions about vertical reflection. It seems a bit of a trick question.
YOU ARE GIVEN A MAGIC PENNY ON THE DAY YOU ARE BORN. YOU ARE TOLD THAT EACH YEAR ON YOUR BIRTHDAY, THE PENNY WILL MAGICALLY DOUBLE IF YOU DONT SPEND IT . HOW MUCH MONEY WILL YOU HAVE ON UR 10TH BIRTHDAY?
Answer:
20
Step-by-step explanation:
You have to multiply 10 by 2, which the ten represents ur 10th birthday, and the 2 represents the amount doubled. 10+2=20
Find X + 50 pts and brainliest.
Answer:
x = 9
Step-by-step explanation:
AD is an angle bisector and divides the side opposite ∠ A into segments that are proportional to the other two sides , that is
[tex]\frac{CD}{BD}[/tex] = [tex]\frac{AC}{AB}[/tex] ( substitute values )
[tex]\frac{x}{6}[/tex] = [tex]\frac{18}{12}[/tex] ( cross- multiply )
12x = 6 × 18 = 108 ( divide both sides by 12 )
x = 9
Lin’s father is paying for a 23.89$ meal. He has a 18% tip for the meal. After the tip, a 7% sales tax is applied. What does Lin’s father pay for the meal?
Answer:
If Lin's father has an 18% tip for the meal, he will need to pay an additional 0.18 x 23.89 = 4.3 dollars as a tip. This brings the total cost of the meal to 23.89 + 4.3 = 28.19 dollars.
Next, a 7% sales tax is applied to the total cost of the meal, which is 28.19 dollars. The amount of sales tax will be 0.07 x 28.19 = 1.97 dollars.
Therefore, the total amount that Lin's father will pay for the meal including the tip and sales tax is 28.19 + 1.97 = 30.16 dollars.
Step-by-step explanation:
Find the product of (4x − 3)(x + 2).
4x2 + 5x − 6
4x2 − 5x − 6
4x2 + 11x − 6
4x2 − 11x − 6
nswer:
Step-by-step explanation:
Step-by-step explanation:
We can use the FOIL method to find the product of (4x − 3)(x + 2):
(4x − 3)(x + 2) = 4x(x) + 4x(2) - 3(x) - 3(2)
= 4x^2 + 8x - 3x - 6
= 4x^2 + 5x - 6
Therefore, the product of (4x − 3)(x + 2) is 4x^2 + 5x − 6. Answer: (A)
Step-by-step explanation:
(4x-3)(x+2)
4x*x,4x*2,-3*x,-3*2
4x2+8x-3x,-6
4x2(8x-3x)-6
4x2+5x-6
so the answer is A
use the info given in the figure to find x, m
Answer:
This is a symmetrical shape so that means all of the sides are going to match. To find x you need to look at the opposite side of the shape and see that it’s needs to match the three. In order to do that X would need to equal two so that it would be two times two minus one which would give you the three that you need to match the other side.
I need question 16,17, and 18
The number of guests staying at the Toasty Inn from January to
December 2019 can be approximated by
N(x) = - 10x2(squared) + 120x + 120
where x represents the number of months after
January 2019 (* = 0 represents January, x = 1
represents February, etc.), and N(x) represents the number of guests who stayed at the inn. During which month did the inn have the greatest number of guests?
How many people stayed at the inn during that month?
As a result, the inn hosted480 visitors in July.
Vertex: What is it?
A vertex is a location in geometry where two or more curves, lines, or edges converge. It is also referred to as the intersection of an object's edges, faces, or facets to form a corner point of a polygon, polyhedron, or other higher-dimensional polytope. Each of the three corners of a triangle, for instance, is a vertex.
x = -b / 2a
where -10 a and 120 b. By replacing these values, we obtain:
x = -120 / 2(-10) = 6
Let the people stayed be x
Because of this, July is the month with the most guests at the inn (6 months after January).
We may change x = 6 into N(x) to get the number of visitors who stayed at the inn during that month:
We must determine the highest value of N in order to determine the month when the inn had the most guests (x).
N(x) = -10x² + 120x + 120
N(6) = -10(6)² + 120(6) + 120 guests.
N(6) = -360 + 720 + 120
N (6) = 360+120
inn hosted 480visitors
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not sure what the answer is but I need the interpets
The x-intercepts of the given expression which is a rational function is calculated to be 0 and the y-intercepts are ±√25.
What does rational function mean?The given expression is a rational function and can be written as the quotient of two polynomials.
The numerator of the rational expression is -x⁷ and the denominator is x²−25. The numerator is a degree 7 polynomial and the denominator is a degree 2 polynomial.
To find the x-intercepts, we need to set the numerator equal to zero and solve for x.
-x⁷ = 0
x⁷ = 0
x = 0
To find the y-intercepts, we need to set the denominator equal to zero and solve for x.
x²−25 = 0
x² = 25
x = ± √25
Therefore, the x-intercepts of the given expression are 0 and the y-intercepts are ± √25.
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Question :
Find the intercepts of the given function.
y = (-x⁷)/(x²−25)
4 2/3 x 1 1/2 x 2 1/4
Answer:
15,75
Step-by-step explanation:
[tex]4 \frac{2}{3} \times 1 \frac{1}{2} \times 2 \frac{1}{4} = \frac{14}{3} \times \frac{3}{2} \times \frac{9}{4} = \frac{14}{2} \times \frac{9}{4} = \frac{7}{2} \times \frac{9}{2} = \frac{63}{4} = 15 \frac{3}{4} = 15.75[/tex]
Decompose the composite figure to find its total area.
Answer: 36 m²
Step-by-step explanation:
First, we will solve for the area of the triangles. Since they are congruent, we will multiply the height times the base. Usually, you would have to divide by two. However, since we have two congruent triangles, we will not be doing this.
A = BH
A = (2 m)(6 m)
A = 12 m²
Next, we will find the area of the rectangle. We will multiply the length by the width.
A = BH
A = (6 m)(4 m)
A = 24 m²
Lastly, we will add these two values together.
24 m² + 12 m² = 36 m²
If the domain and range of the one-to-one function f(x) are: D(f) = [3, 4); R(f) = (- 2, 5) What are the domain and range of the inverse function f ^ - 1 * (x)' ?
The domain of the inverse function f⁻¹⁽ˣ⁾ is (-2, 5), and the range is [3, 4).
What is domain?The domain refers to the set of input values for which a function is defined. For example, the domain of the function f(x) = √(x) is all non-negative real numbers, because the square root function is only defined for non-negative inputs.
What is range?The range refers to the set of output values that a function can produce, given its domain of input values. In other words, it represents the set of possible values that a function can output.
In the given question,
Since f(x) is a one-to-one function, it has an inverse function f⁽⁻¹⁾⁽ˣ⁾, which can be found by switching the roles of x and y and solving for y.
To find the domain and range of the inverse function f⁽⁻¹⁾⁽ˣ⁾, we can use the fact that the domain of f(x) is equal to the range of f^⁽⁻¹⁾⁽ˣ⁾, and the range of f(x) is equal to the domain of f⁽⁻¹⁾⁽ˣ⁾.
So, we have:
Domain of f(x) = [3, 4)
Range of f(x) = (-2, 5)
Range of f⁽⁻¹⁾⁽ˣ⁾ = Domain of f(x) = [3, 4)
Domain of f⁽⁻¹⁾⁽ˣ⁾ = Range of f(x) = (-2, 5)
Therefore, the domain of the inverse function f⁽⁻¹⁾⁽ˣ⁾ is (-2, 5), and the range is [3, 4).
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help pls show ur work
The height of the first floor above the second floor would be = 20 ft.
How to calculate the height of the first floor from the second floor?To calculate the height of the first floor from the second floor, the formula from SOHCAHTOA is used.
The opposite part of the triangle created by the escalator = ?ft
The hypotenuse of the triangle which is the height of the escalator = 40 ft
Sin 30° = X/40
X = sin30° × 40
X = 0.5×40
X = 20 ft
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PROGRESSIVE
Employee: "When I started here, there were 500 employees. Since then, we have
added 35% more employees, so we now have a total of
employees."
175
350
535
635
Shanna Bedgood
675
Since the question is asking about total employees, we must add 175 to 500 to get 675. Therefore, the correct answer is 675.
What does increase mean?Increase means to grow or make larger in size, amount, degree, or intensity. It is the opposite of decrease, meaning to make or become less.
This is because when there were 500 employees, a 35% increase would be a total of 500 + 35% of 500
= 500 + 175
= 675.
To calculate 35% of 500, we use the formula:
(35/100) × 500 = 175
This means that 35% of 500 is 175, so when we add 175 to 500, we get 675.
Since the question is asking about total employees, we must add 175 to 500 to get 675.
Therefore, the correct answer is 675.
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A bicycle is originally priced at 80 then the owner gives a discount now it is priced at 60 enter the percent discount
Step-by-step explanation:
Sol'n,
Here,
We can see that the Marked Price is Rs.80
a discount of x percent is added such that the new price i.e. SP with discount becomes about Rs.60
Now,
We know that,
Discount Percentage = (MP-SP with discount/SP with discount)×100%
= (80-60/60)×100%
=33.33%
Hence, by this we can conclude the discount percentage to be of about 33.33%..
find the area of the polygonb
Answer:
A=b×h
A=3x5
A=15
ggggggggggg
Aiden models a can of ground coffee as a right cylinder. He measures its radius as 3 4 4 3 in and its volume as 12 cubic inches. Find the height of the can in inches. Round your answer to the nearest tenth if necessary.
The height of the can is 0.238 inches.
What is the volume of cylinder?
The density of a cylinder is determined by its volume, which represents how much material may be immersed in it or carried inside of it. The formula πr²h, where r is the radius of the circular base and h is the height of the cylinder, determines the volume of a cylinder.
Here, we have
Given: Aiden models a can of ground coffee as a right cylinder. He measures its radius as 3 4/3 in and its volume as 12 cubic inches.
We have to find the height of the can.
the volume of the can of ground coffee = πr²h
12 = 3.14×(12/3)²h
12/50.24 = h
h = 0.238inches.
Hence, the height of the can is 0.238 inches.
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