Erika should use the coupon which gives her a discount of 15% as it will bring down the cost of the cooler to $106.25.
Given,
The initial cost of the cooler = $125
Erika has two options: (i) 15% off coupon
(ii) $15 off coupon
Cost of the cooler that Erika gets from option (i):
[tex]= 125 - \frac{15}{100} * 125\\= 125 - 18.75\\= 106.25\\[/tex]
Cooler costs $106.25 to Erika from option (i).
Cost of the cooler that Erika gets from option (ii):
[tex]= 125 -15\\=110[/tex]
Cooler costs $110 to Erika from option (ii).
We can clearly see, $106.25 < $110
Therefore, Erika should use the coupon which gives her a discount of 15%.
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For 5-8, use the diagram to complete each sentence.
(diagram attached)
5. An exterior angle of the triangle is ________.
6. The remote interior angles of the triangle to the exterior angle 1 are ________ and ________.
7. The sum of the measure of angles 2 and 3 is equal to the measure of ________.
8. The sum of the measure of angles 1 and 4 is _______.
By using the diagram, each of the sentence should be completed as follows;
An exterior angle of the triangle is ∠1.The remote interior angles of the triangle to the exterior angle 1 are ∠2 and ∠3.The sum of the measure of angles 2 and 3 is equal to the measure of ∠1.The sum of the measure of angles 1 and 4 is 180°.What is the exterior angle theorem?In Mathematics, the exterior angle theorem can be defined as a theorem which states that the measure of an exterior angle in a triangle is equal in magnitude to the sum of the measures of the two remote or opposite interior angles of that triangle.
By applying the exterior angle theorem, we can reasonably infer and logically deduce that the sum of the measure of both angle 2 and angle 3 in the given triangle is equal to the measure of angle 1 (∠1);
∠2 + ∠3 = ∠1
By applying the Linear Pair Postulate to the two angles formed at a point, we have the following:
∠1 + ∠4 = 180°
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Question 3(Multiple Choice Worth 2 points)
(Graphing Linear Equations LC)
Which of the following graphs has a slope of negative three halves and a y-intercept of 3?
graph of a line passing through the points 0 comma 2 and 3 comma 0
graph of a line passing through the points 0 comma 2 and 2 comma negative 1
graph of a line passing through the points 0 comma 3 and 2 comma 0
graph of a line passing through the points 0 comma 3 and 3 comma 1
A graph which has a slope of negative three halves and a y-intercept of 3 include the following: C. graph of a line passing through the points 0 comma 3 and 2 comma 0.
What is y-intercept?In Mathematics, the y-intercept is also known as an initial value and the y-intercept of any graph such as a linear function, generally occur at the point where the value of "x" is equal to zero (x = 0).
From the information provided above, the slope and data points on this line include the following:
Points on x-axis (x) = (0, 2).Points on y-axis (y) = (3, 0).In Mathematics and Geometry, the slope of any straight line can be calculated by using this this mathematical equation (expression);
Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Substituting the given points into the slope formula, we have the following;
Slope (m) = (0 - 3)/(2 - 0)
Slope (m) = -3/2
Therefore, the required equation based on a y-intercept of 3 is y = -3x/2 + 3.
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Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis? Select two options. x2 + (y – 3)2 = 36 x2 + (y – 5)2 = 6 (x – 4)² + y² = 36 (x + 6)² + y² = 144 x2 + (y + 8)2 = 36
The equation that represents circles that have a diameter of 12 units and a center that lies on the y-axis is x²+ (y-3)² = 36
What is an equation?An equation is a mathematical statement that shows that two mathematical expressions are equal.
Given that, a circle have a diameter of 12 units and a center that lies on the y-axis, we need to find its equation,
We know that, the standard form of the equation of a circle is expressed as;
(x-a)² + (y-b)² = b=r²
where;
(a, b) is the center of the circle
r is the radius of the circle
We have,
diameter = 12 units
radius = 12/2 = 6 units
If the center lies on the y-axis, the center will be at (0, 3)
Substituting into the formula, we will have (x-0)² + (y-3)² = 6²
x²+ (y-3)² = 36
Hence, the equation that represents circles that have a diameter of 12 units and a center that lies on the y-axis is x²+ (y-3)² = 36
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What are the measurements of a cylinder if its volume is 500 cm3?
The measurements of a cylinder if its volume is 500cm3 is
What is the volume of a right circular cylinder?Suppose that the radius of considered right circular cylinder be 'r' units.
And let its height be 'h' units.
Then, its volume is given as:
[tex]V = \pi r^2 h \: \rm unit^3[/tex]
Right circular cylinder is the cylinder in which the line joining center of top circle of the cylinder to the center of the base circle of the cylinder is perpendicular to the surface of its base, and to the top.
Given;
Volume of cylinder= 500cm3
Now, the volume of cylinder= [tex]\pi r^{2} h[/tex]
500=3.14*r^2*h
500/3.14=r^2*h
r^2*h=159.23
h=159.23/r^2
r^2=159.23/h
Therefore, the answer by the given volume will be h=159.23/r^2 and r^2=159.23/h
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You buy a 1:1000 cale model of the Statue of Liberty during a trip to New York City. The height of the model i 9. 3 centimeter. Find the actual height x (in meter) of the Statue of Liberty
The actual height of the Statue of Liberty in meter is 93 m
What is proportionality?It is a constant relationship between different measurable quantities.
Data of the problem:
Scale 1:1000Height model = 9.3 cmWe calculate the proportion of the model scale:
1/1000 = 9.3/x
We clear the variable, noticing the rules of clearing:
What is multiplying goes to the other side of the equality dividing.What is dividing goes to the other side of the equality by multiplying.Clearing the variable we have:
1/1000 = 9.3/x
x* (1/1000) = 9.3
x = (9.3*1000) / 1
x = 9300 cm
Converting the centimeter to meters we have:
9300 cm * (1 m /100 cm) = 93 m
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A marble tile meaure 25 cm by 20 cm. How many tile will be required to cover a wall of ize 4cm by 3m
240 tiles are required to cover a wall of size 4m by 3m
Let l be the length of the wall and b be the breadth of the wall
Then, l = 4m and b = 3m
Area of the wall is given by,
Area = length × breadth
= 4 m x 3 m
= 12 m^{2}
Also given that area of one marble tile = 25 cm x 20 cm
= 500 cm^{2}
Converting the measure of area of one marble tile in metres
= 0.05 m2
[Since 1 m^{2} = 10000 cm^{2}]
Now,
Area of one marble tile is 0.05 m^{2}
Number of tiles required to cover the wall
= Area of wall/ Area of one marble tile
= 12/0.05
= 240 tiles
Therefore, 240 tiles are required to cover a wall of size 4m by 3m or area of 12 m²
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What is the mirror image of 4 46?.
The mirror image is (4, 46) is (4, -46)
The term mirror image is defined as it is like a reflection of it either because it is exactly the same or because it is the same but reversed.
Here we have given the point (4, 46) and here need to mirror image of the points.
The rule Mirror image of (x , y ) in the x - axis is written as ( x , -y)
Here we have the value of x as 4 and the value of y as 46.
Here we also know that it is defined as a reflected duplication of the number that appears almost identical but is reversed in the direction perpendicular to the mirror surface.
When we apply the values on the formula then we get the mirror image as (4, -46).
Complete Question:
What is the mirror image of the coordinate (4, 46)?
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When the magnitude level of an earthquake is between 3. 0 3. 9 then the category is?.
When the magnitude level of an earthquake is between 3. 0 3. 9 then the category is known as minor category.
The scale goes from "minor" for earthquakes with a magnitude between 3.0 and 3.9, when people typically start to feel them, to "great" for earthquakes with a magnitude more than 8.0, when major damage is anticipated.
A single earthquake frequently has many somewhat different magnitudes published for it. This occurs because there is a complex relationship between seismic readings and magnitude, and several methods frequently produce slightly different magnitudes for the same earthquake.
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a brass ornament has a volume of 24cm
brass has a density of 8.7m
find the mass of the brass ornament
The mass of the brass ornament as described in the task content in terms of its volume and density is; 208.8.
What is the mass of the brass ornament?Recall that the formula for the density of an object is given as;
Density = Mass / Volume.
Hence, given that the density of the ornament is; 8.7 and the volume of the ornament is; 24, it follows that the mass of the ornament can be evaluated as follows;
8.7 = Mass / 24
Mass = 24 × 8.7
Mass = 208.8.
Ultimately, the mass of the brass ornament is; 208.8.
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Paula' Pizza Parlor ue the following ingredient to make pizza. Number of Pizza Sauce (oz) Cheee (oz)
4 28 16
5
At thi rate, how much auce and cheee will Paula ue to make 5 pizza?
Paula will use 20 oz of sauce and 80 oz of cheese to make 5 pizzas.
We can use the rate of use of pizza sauce and cheese to determine how much of each ingredient Paula will use to make 5 pizzas.
From the information provided, we can see that for every 4 oz of sauce, Paula uses 16 oz of cheese. We can use this ratio to determine the amount of sauce and cheese used for any number of pizzas.
To make 5 pizzas, Paula will use 4 x 5 = 20 oz of sauce and 16 x 5 = 80 oz of cheese.
So, Paula will use 20 oz of sauce and 80 oz of cheese to make 5 pizzas.
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What is the limit of sum formula?.
The limit of sum formula is Sn=a(1−rn)1−r,for r≠1.
Consider a curve that lies above the x-axis. This graph's function is a continuous function with all of its values being non-negative, defined on the closed interval [a, b]. The definite integral ab f(x) dx of any such continuous function "f" is the region bound between the curve, the points "x = a" and "x = b," and the x-axis.
On the interval [a, b], the definite integral of a real-valued function f(x) with respect to a real variable x is written as,
[tex]\int\limits^b_a {f(x)} \, dx = F(b)-F(a)[/tex]
∫ = Integration symbol
a = Lower limit
b = Upper limit
f(x) = Integrand
dx = Integrating agent
A function may get close to two distinct limits. There are two scenarios: one in which the variable approaches its limit by values larger than the limit, and the other by values smaller than the limit.
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Jacob goes to the storeto buy items for the week. At walmart hebuy bread for 2.99 milk for 4.50 a bushel of cilantro for .50 detergant for 13.99 nori for 2.99 a wrench for 5.99 toilet paper for 21.99 and sandwhich meat for 5.99
The total cost of the items that Jacob bought will be 58.94.
How to calculate the total cost of the items?A word problem in mathematics simply refers to a question that is written as a sentence or in some cases more than one sentence which requires an individual to use his or her mathematics knowledge to solve the real life scenario given.
In this case, Jacob goes to the storeto buy items for the week. At walmart hebuy bread for 2.99 milk for 4.50 a bushel of cilantro for .50 detergant for 13.99 nori for 2.99 a wrench for 5.99 toilet paper for 21.99 and sandwhich meat for 5.99.
The total cost will be:
= 2.99 + 4.50 + 0.50 + 13.99 + 2.99 + 5.99 + 21.99 + 5.99
= 58.94
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Complete question
Jacob goes to the storeto buy items for the week. At walmart hebuy bread for 2.99 milk for 4.50 a bushel of cilantro for .50 detergant for 13.99 nori for 2.99 a wrench for 5.99 toilet paper for 21.99 and sandwhich meat for 5.99. Calculate the total cost
Tiffany went shopping at Forever 21 and The Gap. She spent a total sum of $450 at the two stores. If the amount she spent at Forever 21 was four times as much as the amount she spent at The Gap, how much did she spend at each of the two stores?
According to the algebraic expression she spend at each of the two stores:
= 90 in the gap
= 360 in the Forever 21
What are expressions in algebra?Any mathematical statement with variables, numbers, as well as an arithmetic operation in between them is called an expression or an algebraic expression. For instance, the expression 4m + 5 has the terms 4m and 5 as well as the variable m of the supplied expression, all of which are separated either by arithmetic sign +.
According to the given information:Tiffany went shopping at Forever 21 and The Gap.
She spent a total sum of $450 at the two stores.
the amount she spent at Forever 21 was four times as much as the amount she spent at The Gap.
SO,
The amount she spent in Forever 21 = y
The amount she spent in Gap = 4x
4x + y = 450
5x + y = 450
= 450/5
= 90
She spent in the gap.
= 450- 90
= 360
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1. In estimating the selected objects in terms of
Width and Mass, what difficulties did you encount
Explain
Estimating the width and mass of objects necessitates meticulous attention to detail, a thorough understanding of the measurement tools and techniques employed, and an awareness of any potential difficulties.
Estimating the width and mass of objects can be difficult in general for several reasons:
Precision of measurement: Depending on the tools used, the precision of measurement can affect the accuracy of the estimate. The shape of the object being measured can also have an impact on the estimate. It can be difficult, for example, to precisely measure the width of an irregularly shaped object.Object composition: The object's composition, such as its density or rigidity, can have an impact on the estimate.External factors such as temperature or humidity can affect the measurement, making it more difficult to obtain an accurate estimate.To learn more about mass.
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The measure of an interior angle of a regular polygon is 108°. Find the number of sides in the polygon?
The internal angle of a regular polygon is equal to 108°. A 5-sided polygon is a pentagon.
What is a regular polygon?An -sided polygon with regular sides that are all the same length and symmetrically arranged around a common center is known as a regular polygon (i.e., the polygon is both equiangular and equilateral).
Only a few regular polygons are "constructible" with the compass and straightedge of classical Greece.
A regular polygon's interior angle measures 108°.
The pentagon is a 5-sided polygon.
A two-dimensional closed figure with three or more straight sides is called a polygon.
A polygon is any shape with straight edges, such as a triangle or rectangle.
Figures with open sides or any curved sides are not considered to be polygons.
Therefore, the internal angle of a regular polygon is equal to 108°. A 5-sided polygon is a pentagon.
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Could the side lengths 4 5 10 form a triangle?.
No, it is not possible to draw a triangle.
This will be done by the property: the sum of two sides of a triangle should be more than the third side.
(4cm + 5cm) =10cm
9cm = 10cm
LHS<RHS
A triangle is not possible.
A triangle is a polygon with three edges and 3 vertices. The terminology for categorizing triangles is more than two thousand years vintage, having been defined on the first actual page of Euclid's elements.
In Euclidean geometry, any three factors, while non-collinear, decide a completely unique triangle and simultaneously, a unique plane (i.e. a -dimensional Euclidean space). In different words, there's best one plane that consists of that triangle, and every triangle is contained in some plane. If the entire geometry is only the Euclidean plane, there is the best one plane and all triangles are contained in it; however, in higher-dimensional Euclidean spaces, this is not real. this text is ready triangles in Euclidean geometry, and in particular, the Euclidean plane, except wherein otherwise stated.
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Jayden and Carson are selling T-shirts and sweatshirts for a fundraiser. Jayden sells 9 T-shirts and 3 sweatshirts for $420. Carson sells 1 T-shirt and 6 sweatshirts for $296. Solve the system of equations for this situation.
Part A
Solve the system by ELIMINATION!! Show your work!
Answer:
a T-shirt = $31
a sweatshirt = $44
Step-by-step explanation:
Let T represent T-shirts and S represent sweatshirts.
Jayden sells 9 T-shirts and 3 sweatshirts for $420:
9T + 3S = 420
Carson sells 1 T-shirt and 6 sweatshirts for $296:
T + 6S = 296
Multiply second equation with -9-9T - 54S = -2,664
Now find the the sum of two equation9T - 9T + 3S - 54S = 420 - 2,664
-51S = -2,244
Divide both sides by -51S = 44 is the price for a sweatshirt, for the price of a T-shirt:
T + 6S = 296
Rewrite equation by replacing S by 44T + 6×44 = 296
T + 264 = 296
Subtract 264 from boths sidesT = 31
A cell phone company charge 50$ for a phone plu 25$ per month. You get a gift card for 100$. When doe the total pent on your phone ervice exeed the amount on you gift card?
The money spent on a phone plan can be represented by the inequality:
50 + 25x > 100 and the total money spent on the phone service exceeds the amount of the gift card after the 2nd month.
In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions.
The inequality represents the total cost of the phone plan, where x represents the number of months for which the service is used.
The first part of the inequality, 50$, represents the initial cost of the phone.
The second part, 25x, represents the monthly cost of the service, 25$ per month.
So, the inequality represents the total cost of the phone plan as the sum of the initial cost of the phone and the monthly cost of the service for x number of months.
50 + 25x > 100
It states that the total cost (50 + 25x) of the phone plan is greater than 100$.
It's the total cost you have to pay for the phone and the service.
It's used to know when the total cost exceeds 100$, which is the gift card's value.
To find out when the total spent on the phone service exceeds the amount of the gift card, we can substitute in the inequality with the given values and solve for x.
50 + 25x > 100
x > (100-50)/25
x > 2
So, the total spent on the phone service exceeds the amount of the gift card after the 2nd month.
Therefore, The money spent on a phone plan can be represented by the inequality : 50 + 25x > 100 and the total money spent on the phone service exceeds the amount of the gift card after the 2nd month.
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the local kennel needs to buy dog food. which dog food will save the kennel the most money? 1st 150 pounds for $53.50 2nd 75 pounds for $336.75
Answer:
The First food will save the most money
Step-by-step explanation:
150lb- $53
75lb- $336.75
The first one saves them quite a bit of money.
Which graph shows the solution to the system of linear equations?
y = 3x
y = x + 1
a coordinate grid with one line that passes through the points 0 comma 0 and 1 comma 3 and another line that passes through the points 0 comma 1 and 1 comma 2
a coordinate grid with one line that passes through the points 0 comma 1 and 1 comma 2 and another line that passes through the points 0 comma 1 and 1 comma 4
a coordinate grid with one line that passes through the points 0 comma 1 and 1 comma 2 and another line that passes through the points 0 comma 3 and 1 comma 4
a coordinate grid with one line that passes through the points 0 comma 1 and 1 comma 3 and another line that passes through the points 0 comma 3 and 1 comma 4
The graph of the system of equations can be seen in the image at the end, and the solution is (0.5, 1.5)
Which graph shows the solution of the system of equations?Here we want to show which graph shows the system of equations below:
y = 3x
y = x + 1
So the graph will have two linear equations, the first one:
y = 3x
Passes through the points (0, 0) and (1, 3) (check that by evaluating)
And the equation:
y = x + 1
Passes through (0, 1) and (1, 2)
Then the correct option is the first one, and the graph of the gis the one below.
There we can see that the solution is (0.5, 1.5)
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The data set below has a median of 39.5. What would be the new median if 43 was added to the list?
31, 41, 50, 28, 52, 38, 56, 27
The median of the following set of data (39.8, 39.6, 39.2, 39.6 and 39.5) is 39.6.
What is median?Median is a number separating the higher half from the lower half of a data sample, population, or probability distribution.
The median of a finite list of numbers can be found by arranging all the observations from lowest value to highest value and picking the middle one (e.g., the median of {3, 3, 5, 9, 11} is 5.
The following set of data was given this question;
39.8, 39.6, 39.2, 39.6 and 39.5
We arrange these data as follows:
39.2, 39.5, 39.6, 39.6, 39.8
The middle number or median is 39.6
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Answer:
The updated mean after adding 43 to the data set is 41.
Step-by-step explanation:
In statistics, the median is a measure of central tendency that represents the middle value of a data set when it is arranged in ascending or descending order.
We know that the general formula for finding median,
If the total number of data points (n) is odd, the median is the value at the [tex]\frac{n+1}{2}[/tex] th position.
If the total number of data points (n) is even, the median is the average of the values at the [tex]\frac{n}{2}[/tex] th and [tex]\frac{n}{2} +1[/tex] th positions.
Given data set: 31, 41, 50, 28, 52, 38, 56, 27
Case 1: Calculate the current median
Arrange the data set in ascending order:
27, 28, 31, 38, 41, 50, 52, 56
Determine the total number of data points (n):
In this case, there are 8 data points.
Calculate the median using the general formula
In Case 1, since n = 8, it is an even number. Thus, the median is the average of the values at the 8/2 = 4th and (8/2 + 1) = 5th positions, which are 38 and 41, respectively.
Calculate the median: [tex]\frac{38 + 41}{2}[/tex] = [tex]\frac{79}{2}[/tex] = 39.5
Hence it is verified
Case 2: Calculate the updated mean
Add the new number to the data set
Add 43 to the data set:
27, 28, 31, 38, 41, 50, 52, 56, 43
Arrange the updated data set in ascending order:
27, 28, 31, 38, 41, 43, 50, 52, 56
Determine the new total number of data points (n):
In this case, there are 9 data points.
Calculate the new median using the general formula:
In case 2, since n = 9, it is an odd number. Thus, the median is the value at the (9+1)/2 = 5th position, which is 41.
Therefore, after adding 43 to the data set, the new median becomes 41.
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Solve 17²⁰¹⁷ - 17 without calculators
The square root of 17 is 4.123. Therefore, 1 √17 = 1 × 4.123 = 4.123.
What is square root ?
square root of quite a number is a price, which on multiplication through itself, gives the authentic number. The square root is an inverse approach of squaring a number. consequently, squares and rectangular roots are associated principles.
suppose x is the square root of y, then it is represented as x=√y, or we can specific the same equation as x2 = y. right here, ‘√’ is the unconventional image used to symbolize the foundation of numbers. The fine quantity, whilst extended by way of itself, represents the rectangular of the number.
The square root of the square of a positive range offers the unique quantity.
Now, 17^2 · 17^-5 = 17^2 - 5 = 17^-3 = 1 / 17^3
Solve 17²⁰¹⁷ - 17 is?
17²⁰¹⁷-17
= 17²⁰¹⁷×1
= 17²⁰¹⁷
Therefore, The square root of 17 is 4.123. Therefore, 1 √17 = 1 × 4.123 = 4.123.
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Which diagram represents the net of a square pyramid? Choose all that apply.
Answer:
D is the answer
How many significant digits are there in exact numbers?
A) Exact numbers have only eight significant figures.
B) Exact numbers have only three significant figures.
C) All the figures written in the exact number are significant.
D) Exact numbers have an unlimited number of significant figures.
Exact numbers have an unlimited number of significant figures and is therefore denoted as option D.
What are Exact numbers?These are the numbers which are used in counting and defining other quantities which are assumed to be exact and usually have no remainders and they have an infinite number of significant figures.
An example is number “3” is exact as well and could be expressed as 3.0000000000000. This means that the number of significant figures can be unlimited because any amount of figures can be placed after the number which is therefore the reason why it was chosen as the correct choice.
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Find the number that belongs in the green box. 125 degrees, 32 degrees, 7
The number that belongs in the green box is 14.7. The solution has been obtained using law of sines.
What is law of sines?
According to the law of sines, all of the angles in the problem must have an equal ratio between the sine of each angle and the length of the side opposite to that angle.
As per law of sines,
sin A/a = sin B/b = sin C/c
In the figure, we are given two angles and we know that in a triangle sum of all angles is 180°.
Therefore,
125° + 32° + x = 180°
x= 23°
Let the side be 'a'
Using law of sines,
⇒sin 125°/a = sin 23°/7
⇒a sin 23° = 7sin 125°
⇒a = 7sin 125°/sin 23° (Dividing both sides by sin 23°)
⇒a = 14.7
Hence, the number that belongs in the green box is 14.7.
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The triangle with coordinates (2,-3),(2,1),(-4,2) is reflected
across the y-axis and then translated by vector
(3,-2).
Part A
Find the new coordinates
Part B
What is the composition of functions for the
given sequence of transformations?
(x, y) → (
The new coordinates after reflection will be (4,2) (-2,1) (-1,-3).
A reflection is a type of transformation that involves flipping a shape, known as the preimage, across a line, known as the line of reflection, to produce a new shape (called the image). You can picture what would happen if you turned the form across the line to graph a reflection.
The general guidelines for the reflection over x-axis equation are as follows: The reflection equation of the new reflected graph will be y=f(x) y = f (x) given an equation, y=f(x) y = f (x). In other words, the function is just multiplied by 1, which results in a curve that crosses the x-axis.
The new coordinates after reflection will be -
(4,2) (-2,1) (-1,-3)
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What is the y value of the solution to the system of equations 3x 5y 17x 4y − 13?.
So, the y-value of the solution to the system of equations 3x + 5y = 17 and 4x + 4y = -13 is not possible to find, because the system is inconsistent and has no solution.
To find the y-value of the solution to the system of equations 3x + 5y = 17 and 4x + 4y = -13, we can use one of the methods for solving systems of equations, such as substitution, elimination, or graphing. In this case, we will use elimination method.
The first step of elimination method is to eliminate one of the variables by adding or subtracting the equations. In this case, we will multiply the first equation by 4 and the second equation by -3 and add them:
4(3x + 5y) = 4(17)
12x + 20y = 68
-3(4x + 4y) = -3(-13)
-12x - 12y = 39
then we can add these two equations:
12x + 20y = 68
-12x - 12y = 39
0 = 29
This is an impossible equation, which means that the system has no solution.
Therefore, the y value of the solution to the system of equations 3x + 5y = 17 and 4x + 4y = -13 is not possible to find, because the system is inconsistent and has no solution.
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Sam ued to be 175cm tall. He i now 7% taller. To the nearet centimeter,how tall i Sam now
Sam is now 187cm tall. When we say that Sam is now 7% taller, it means that his new height is 7% greater than his original height.
To find out how much taller he is, we can calculate 7% of his original height using the percentage formula:
percentage of original value = (part / whole) * 100
In this case, the part is the increase in height, and the whole is the original height. To find the part, we can rearrange the formula to:
part = (percentage / 100) * whole
So, to find the increase in height, we can substitute the values we know:
increase in height = (7 / 100) * 175 cm
This simplifies to:
increase in height = 12.25 cm
Now that we know how much taller Sam is, we can add this increase to his original height to find his new height:
new height = original height + increase in height
new height = 175 cm + 12.25 cm = 187.25 cm
So, Sam is now 187.25 cm tall. This number is rounded to the nearest centimeter, so his new height is 187cm tall.
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The spanish Club is having a bake sale . you can buy a bag of trail mix and loaf of pumpkin bread for $24 . this situation can be represented with the system x + y = 11 and 3x + 2y = 24, where x represents the cost of a bag of trail mix and y represents the costs of a loaf of pumpkin bread , how much does each bag of trail mix and each loaf of pumpkin bread cost ??
Answer:
each bag of trail mix costs $2 and each loaf of pumpkin bread costs $9.
Step-by-step explanation:
To find the cost of each item, we need to solve the system of equations.
We can use substitution method:
3x + 2y = 24
x + y = 11
Solving for x in the second equation:
x = 11 - y
Substituting this into the first equation:
3(11 - y) + 2y = 24
Solving for y:
33 - 3y + 2y = 24
-y = -9
y = 9
Then we can use y = 9 in the equation x = 11 - y to find x:
x = 11 - 9 = 2
So each bag of trail mix costs $2 and each loaf of pumpkin bread costs $9.
At noon, a tank contained 20 cm of water. After several hours, it contained 16 cm of water. What is the percent decrease of water in the tank?
Answer:
Step-by-step explanation: potatoes