The slope of B'C' is 1 and it can be determined by using formula of scale factor.
Given that,
ABC is an isosceles right triangle in which has a slope of -1 and m ∠ABC = 90°.
ABC is dilated by a scale factor of 1. 8 with the origin as the center of dilation, resulting in the image A'B'C'.
We have to determine,
What is the slope of B'C'?
According to the question,
ABC is an isosceles right triangle in which,
Slope of AB = -1
And AB is perpendicular to BC.
When the two lines are perpendicular to each other then,
\(\rm The \ slope\ of\ AB \times Slope\ of \ BC = -1\\\\-1 \times Slope\ of \ BC = -1\\\\ Slope\ of \ BC = 1\\\)
ABC is dilated by a scale factor of 1. 8 with the origin as the center of dilation, resulting in the image A'B'C'.
Length of Line segment A'B'= 1.8 × AB
So, the slope of the two-line Segment that is AB and A'B' are the same.
Slope of A'B'= -1
Length of Line segment C'B'= 1.8 × CB
So, the slope of the two lines that is CB and C'B' are the same.
The slope of B'C' is 1.
Hence, The required slope of B'C' is 1.
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Answer:
Slope of 1
Step-by-step explanation:
C. 1
You and your partner are observing an aircraft from two observation decks, located 5.0 km apart. From your point of view, the aircraft is at an angle of elevation of 70. FrIm your partner's point of view, the angle of elevation is 55 Determine the altitude of the aircraft to the nearest tenth of a kilometre
The altitude of the aircraft, to the nearest tenth of a kilometer, is approximately 4.1 km. This value is determined by using trigonometric calculations based on the given angles of elevation observed from two different points.
Let's consider the observer at one of the observation decks. From this observer's point of view, the angle of elevation to the aircraft is 70°. Similarly, the other observer, located 5.0 km away, sees the aircraft at an angle of elevation of 55°. We can use trigonometry to calculate the altitude of the aircraft.
To begin, we can label the distance between the observer's positions as 'd' (5.0 km) and the altitude of the aircraft as 'h'. Using trigonometry, the tangent function can be applied to find the height in relation to the distance:
tan(70°) = h/d and tan(55°) = h/(d + 5.0)
Solving these equations simultaneously, we can find the value of 'h'. Rearranging the first equation, we have h = d * tan(70°). Substituting the given values, we get h ≈ 5.0 km * tan(70°). Using a calculator, this simplifies to h ≈ 4.1 km.
Therefore, the altitude of the aircraft, to the nearest tenth of a kilometer, is approximately 4.1 km.
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PLEASE help me solve the following equations. Only part b-e
will mark as brainliest
Step-by-step explanation:
16/7 is your solution....
hope it helps
...
Help me pls asap! :)
Answer:
infinite solutions
4x+ 12 - 4 = 4x + 8
4x + 8 = 4x + 8
What number do you need to add to +6 to get 0?
Answer:
+6-6=0
so we need -6 to add in +6 to get 0
Step-by-step explanation:
i hope this will help you
\(solution \\ let \: the \: number \: be \: x \\ x + 6 = 0 \\ or \: x = 0 - 6 \\ x = - 6\)
hope this helps...
Good luck on your assignment...
What is the slope of the line that passes through the points (8, 7) and (4, 5)
write in simplest form
Answer:
Hiya There
___________________
Y=1/2x+3 I believe
___________________
“Hope is being able to see that there is light despite all of the darkness.”
– Desmond Tutu
Which is equivalent to
\( \sqrt[3]{8} ^{x} \)
The length of a rectangular picture frame is 3 inches shorter than its width. If the perimeter of the picture frame is 38 inches, what is the length, l, width, w, of the frame? Write and solve an equation to model the problem.
By using the equation for the perimeter, we will see that the width is 11 inches and the length 8 inches.
How to find the length and width?
The frame is a rectangle. Remember that for a rectangle of length L and width W, the perimeter is:
P = 2*(W + L)
In this case we know that the perimeter is 38 inches, and the length is 3 inches shorter than the width, then we can write two equations:
38in = 2*(W + L)
L = W - 3in
Replacing the second equation in the first one we get:
38in = 2*(W + W - 3in)
38in = 4*W - 6in
38in + 6in = 4*W
44in = 4*W
44in/4 = W
11in = W
The width is 11 inches, and the length is 11in - 3in = 8 in.
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describe the graph of the solution
First, we want to note two things:
We have a solid circle at -10, so -10 IS part of the solution.We have shading to the right of -10, meaning we also need to include numbers to the right of -10, or numbers greater than -10.
We can describe this with an inequality: x ≥ -10
Be sure you use ≥ and not >, since -10 is included.
We can describe this with interval notation: [ -10, infty )
Be sure you use [ and not ( on -10, since -10 is included.
You can also use set-builder notation: { x | x ≥ -10 }
In a certain game, a one-inch square piece is placed in the lower left corner of an eight-by-eight grid made up of one-inch squares. If the piece can move one grid up or to the right, what is the probability that the center of the piece will be exactly inches away from where it started after 8 moves
The probability is 0.01087 (rounded to five decimal places).
Let's first consider the possible positions the piece can be in after 8 moves. Since the piece can only move up or to the right, it can be in any position on the line that goes from the starting position (lower left corner) to the upper right corner of the grid. Since there are 8 moves, this line consists of 9 points. We can count the number of ways the piece can get to each of these points using combinations.
For example, to get to the point that is 4 inches up and 4 inches to the right of the starting position, the piece must move up 4 times and to the right 4 times, in any order. This is equivalent to choosing 4 moves out of the 8 total moves to be "up" moves, which can be done in C(8,4) = 70 ways. Similarly, the number of ways to get to each of the other 8 points on the line can be calculated using combinations.
Now we need to find the number of ways the piece can end up at a point that is exactly 4 inches away from the starting position. There are two such points on the line, which are 4 inches up and 4 inches to the right, and 4 inches to the right and 4 inches up, respectively. The total number of ways the piece can get to either of these points is C(8,4) + C(8,4) = 140.
Therefore, the probability that the center of the piece will be exactly 4 inches away from where it started after 8 moves is 140 divided by the total number of ways the piece can end up, which is C(8+8,8) = C(16,8) = 12,870.
The probability is therefore:
P = 140/12,870 = 0.01087 (rounded to five decimal places).
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PLEASE HELP!!! URGENT!!!!
Pictured are curves y=p(x) and y=q(x), together with tangents for x = 2. Let r(x)=p(x)*q(x) and determine r'(2).
Slope Formula:
\(\displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}\)
Simply plug in the 2 coordinates into the slope formula to find slope mCalculusDifferentiation
DerivativesDerivative NotationDerivative Rule [Product Rule]:
\(\displaystyle \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)\)
Let's identify what the problem initially gives us:
We are given the graphs of the curves \(\displaystyle y = p(x)\) and \(\displaystyle y = q(x)\) along with their tangents for x = 2.This means that they give us the derivative of each respective curve at x = 2, since the definition of a derivative is the slope of the tangent line.
We are also given that some function \(\displaystyle r(x)\) is equal to \(\displaystyle p(x)q(x)\), where the functions are multiplied by each other.
\(\displaystyle r(x) = p(x)q(x)\)We are then asked to find \(\displaystyle r'(2)\), which is the derivative of the \(\displaystyle r(x)\) function at x = 2.
Step 2: WorkIn order to find the derivative of \(\displaystyle r(x)\), we will need to use the Product Rule, which states how to find a derivative of 2 functions being multiplied by each other. Note the equation given under "General Formulas and Concepts":
\(\displaystyle \begin{aligned}r(x) & = p(x)q(x) \\r'(x) & = \boxed{ p'(x)q(x) + p(x)q'(x) }\\\end{aligned}\)
∴ the derivative of \(\displaystyle r(x)\) is equal to \(\displaystyle \boxed{ r'(x) = p'(x)q(x) + p(x)q'(x) }\)
To find the derivative evaluated at x = 2, we substitute in x = 2 into our derivative:
\(\displaystyle\begin{aligned}r'(x) & = p'(x)q(x) + p(x)q'(x) \\r'(2) & = p'(2)q(2) + p(2)q'(2) \\\end{aligned}\)
This is where the graphs and their tangent lines come into play.
To find \(\displaystyle q(2)\) and \(\displaystyle p(2)\), we simply refer to the \(\displaystyle y = q(x)\) and \(\displaystyle y = p(x)\) graphs, respectively:
\(\displaystyle q(2) = \boxed{ -1 }\)\(\displaystyle p(2) = \boxed{ 3 }\)\(\displaystyle \begin{aligned}\implies r'(2) & = p'(2)(-1) + 3q'(2) \\& = \boxed{ -p'(2) + 3q'(2) }\end{aligned}\)
We have now simplified our derivative equation \(\displaystyle r'(2)\) to be:
\(\displaystyle\begin{aligned}r'(x) & = p'(x)q(x) + p(x)q'(x) \\r'(2) & = p'(2)q(2) + p(2)q'(2) \\& = -p'(2) + 3q'(2) \\\end{aligned}\)
To find \(\displaystyle p'(2)\) and \(\displaystyle q'(2)\), we refer to the tangent lines of the graphs \(\displaystyle y = p(x)\) and \(\displaystyle y = q(x)\), respectively. We will have to find their slopes (by the definition of a derivative) using the Slope Formula:
\(\displaystyle p'(2) = \frac{5 - 1}{3 - 1} = \frac{4}{2} = \boxed{ 2 }\)\(\displaystyle q'(2) = \frac{-1 - 0}{2 - -1} = \boxed{ \frac{-1}{3} }\)\(\displaystyle\begin{aligned}\therefore r'(2) & = -p'(2) + 3q'(2) \\ r'(2) & = -2 + 3 \bigg( \frac{-1}{3} \bigg) \\& = -2 - 1 \\& = \boxed{ -3 }\end{aligned}\)
Answer\(\displaystyle \therefore \boxed{ r'(2) = -3 }\)
___
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Topic: Calculus
Unit: Derivatives
You have three $5 bills and four $10 bills in your wallet. You randomly select different dollar bills from your wallet. Find the probability that you select a $5 bull second given that you randomly selected a $10 first.
The probability to select $5 bill when the first selected bill is $10 is given by 1/2.
Probability is the possibility to occur of an event.
In mathematical terms, probability can be defined as,
\(\text{Probability}=\frac{\text{The number of favorable case}}{\text{The total number of case}}\)
Given that, the number of total $5 bills = 3
the number of $10 bills = 4
Total number = 3+4 = 7
If the first drawn bill is $10, then the number of $10 bills = 4-1 = 3
Total number of bills =7-1 = 6
So the probability to select $5 bill when the first selected bill is $10 = 3/6 = 1/2
Hence, the probability to select $5 bill when the first selected bill is $10 is given by 1/2.
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which is Not equal to thr absolute value of -5?
Answer:
5
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
Solve the equation in standard form
Answer: − 18 x= 72
Step-by-step explanation:
at what point is the tangent plane to the aurface f(x, y) = x^2 y^2 xy - x 4y horizontal?
The point where the tangent plane to the surface is horizontal will be (1.0899, 1.6595).
To determine the partial derivatives of the function f(x, y) with respect to x and y:
\(fx = 2xy^3 - 4y - 1\\fy = 2x^3y - 4x\)
Now, we can find the gradient of f:
\(grad(f) = < fx, fy > = < 2xy^3 - 4y - 1, 2x^3y - 4x >\)
To determine the point where the tangent plane to the surface is horizontal, the critical points of f where grad(f) = 0:
\(2xy^3 - 4y - 1 = 0\\2x^3y - 4x = 0\)
From the second equation,
\(2x(x^2y - 2) = 0\)
Therefore, either x = 0 or x^2y - 2 = 0 Substituting this into the first equation, we get:
\(2x(2/x^6) - 4(2/x^2) - 1 = 0\\4/x^5 - 8/x - 1 = 0\)
Therefore, the point where the tangent plane to the surface is horizontal x ≈ 1.0899 and y ≈ 1.6595.
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write an equivalent integral with the given order of integration ∫20∫4−x2√0∫4−x2√0f(x,y,z)dzdydx=∫ba∫g(z)f(z)∫k(x,z)h(x,z)f(x,y,z)dydxdz
The given order of integration is in the form of triple integrals, where the integration is performed first over the z-coordinate, then over the y-coordinate, and finally over the x-coordinate.
To obtain an equivalent integral in the given order of integration, we can use the substitution method and change the order of integration.
First, we integrate with respect to z from 0 to √(4-x^2), then we integrate with respect to y from -√(4-x^2) to √(4-x^2), and finally, we integrate with respect to x from 2 to 0. This can be expressed as:
∫2 0 ∫-√(4-x^2) √(4-x^2) ∫0 f(x,y,z) dz dy dx
We can then change the order of integration to obtain an equivalent integral in the form ∫ba∫g(z)f(z)∫k(x,z)h(x,z)f(x,y,z)dydxdz by integrating w.r.t. x first, then w.r.t. y, and finallyw.r.t. z.
This gives us:
∫0 √4-y^2 ∫-√(4-x^2) √(4-x^2) ∫0 f(x,y,z) dz dx dy
Using the limits of integration for each variable, we can rewrite this as:
∫0 2 ∫-√(4-y^2) √(4-y^2) ∫0 f(x,y,z) dz dy dx
Therefore, the equivalent integral in the given order of integration is ∫0 2 ∫-√(4-y^2) √(4-y^2) ∫0 f(x,y,z) dz dy dx.
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The table shows the breakdown of the points scored in last week's basketball game.
a. Write a linear expression in simplest form to represent the total field goal points scored in the first two quarters.
b. Write a linear expression in simplest form to represent the total points scored in the game
Answer:
a. Total field goal points scored in the first two quarters, in simplest linear expression form is: 3x - 4.
b. The total points scored in the game, in simplest linear expression form is: 6x - 1.
a. The goal points scored in the first two quarters are expressed in linear forms as: 2x - 6 and x + 2.
The total field goal points in the first two quarters = 2x - 6 + x + 2
Add like terms
3x - 4
b. The total points scored in the game = 2x - 6 + x + 2 + 2x + x - 6 + 9
Add like terms and simplify the expression
2x - 6 + x + 2 + 2x + x - 6 + 9
6x - 1
Step-by-step explanation:
PLEASE HELP
Jared visited his family doctor after suffering for days with a rash that appeared on his ankles and calves as soon as he arrived home from camp. Jared's doctor asked him several questions about his activities during the past week, including the places he'd been and the kind of clothing he wore. Then the doctor announced that Jared had a nasty case of poison ivy.
What kind of reasoning did Jared's physician use to make a diagnosis? Explain how you you were able to tell what kind of reasoning was used.
The doctor used inductive reasoning because the doctor used various observations to come up with a final conclusion.
Can you please help me answer this thank you. A, B C or D
Since the Mean is of mean daily revenue of $5400
Also, the standard deviation is $54
For the sample mean
The mean and standard deviation will remain unchanged
Hence the answer is
Option A
The average of the five numbers in a list is 54. the average of the first two numbers is 48. what is the average of the last three numbers?
The average of the last three numbers is 58 if the average of the five numbers in a list is 54. the average of the first two numbers is 48.
What is average?It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.
It is given that:
The average of the five numbers in a list is 54. and the average of the first two numbers is 48.
54 = sum of the five numbers/5
54x5 = sum of the five numbers
270 = sum of the five numbers
48 = sum of the two numbers/2
48x2 = sum of the two numbers
96 = sum of the two numbers
Sum of three numbers = 270 - 96
Sum of three numbers = 174
The average of the last three numbers = 174/3 = 58
Thus, the average of the last three numbers is 58 if the average of the five numbers in a list is 54. the average of the first two numbers is 48.
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Coach Burke was emphasizing proper hitting mechanics during Tuesday's practice at the ball field. He was extremely impressed to see several of his players hit the ball off the outfield fence and a few over the fence during batting practice. The players increased their hitting distance by:
Coach Burke's emphasis on proper hitting mechanics during Tuesday's practice at the ball field led to impressive results among the players. By focusing on elements such as stance, grip, and swing, the players were able to improve their overall hitting performance.
Their increased hitting distance can be attributed to several factors.
First, a balanced and comfortable stance allowed the players to transfer their weight effectively and generate more power in their swings. Secondly, a firm yet relaxed grip on the bat helped maintain proper bat control, ensuring that the players were able to hit the ball with maximum force. Additionally, an efficient and smooth swing, with a proper follow-through, allowed the players to make solid contact with the ball, thus increasing the hitting distance.
As a result of Coach Burke's guidance in refining these aspects of hitting mechanics, the players were able to hit the ball off the outfield fence and even over the fence during batting practice.
This improvement in hitting distance is a testament to the importance of mastering the fundamentals of baseball and the impact of quality coaching on player performance.
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The students were interested in the proportion of rental apartments in these suburbs that were leased as furnished apartments and whether this varied with the number of bedrooms in these apartments: investigate further whether the proportions of furnished apartments differ be- tween apartments with different numbers of bedrooms, it is useful to test formally whether the number of bedrooms in an apartment and whether it is furnished or not are independent (a) State the null hypothesis the relevant form of the test statistic and the approximate distri- bution of the test statistic for carrying out this text (b) Provide cross-tabulation of the apartment data by these two factors (you should generate this table using R)
(c) Carry out a formal test, using a = 0.05,of whether the proportions of furnished apartments varies across number of bedrooms, that is, whether the furnishing status of an apartment independent of the number of bedrooms in the apartment You may use R to carry out these calculations, but please state the following information from this test: i. the table of expected frequencies ii. the observed value of the test statistic iii. the relevant degrees of freedom for the distribution of the test statistic iv. the resulting p-value for the test, or rejection region You should also ensure that you conclude your formal test by interpreting the p-value (or rejection region and your observed test statistic) in terms of the original question discussed above:'
The students were interested in the proportion of rental apartments in these suburbs that were leased as furnished apartments and whether this varied with the number of bedrooms in these apartments 500x + 900y + 1500z = 750,000
formal test, using a = 0.05,of whether the proportions of furnished apartments varies across number of bedrooms, that is, whether the furnishing status of an apartment independent of the number of bedrooms in the apartment You may use R to carry out these calculations, but please state the following information from this test: i. the table of expected frequencies ii. the observed value of the test statistic iii. the relevant degrees of freedom for the distribution of the test statistic iv
500x + 900y + 1500z = 750,000 - - - (1)
x + y + z = 1000 - - - - (11)
x = 200 + y + z - - - - (111)
x + 2y + 3z = 1550 - - - (1V)
I bedroom = x
2 bedroom = y
3 bedroom = z
All the condition s gjvbbs'
500x + 900y + 1500z = 750,000 - - - (1)
x + y + z = 1000 - - - - (11)
x = 200 + y + z - - - - (111)
x + 2y + 3z = 1550 - - - (1V)
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the number of times a variable appears in a data set is called _____
Answer:
The number of times a variable appears in a date set is called a constant.
The total cost to develop camera pictures is proportional to the number of pictures being made. Maria paid 5.50 for 50 pics made. What number represents the constant in this proportional relationship.
Answer: 0.11
Step-by-step explanation:
Suppose y represents the cost, x represents the number of pictures, then y=kx {positive proportional function}
when x=50, y=5.5
5.5=50k
k=5.5/50
k=55/500
k=0.11
Leeza is 6 years older than two times her brother Sammy’s age. Let s represent Sammy’s age.
Which expression represents Leeza’s age?
a.6s + 2
b.2s
c.s + 6
d.2s + 6
✧・゚: *✧・゚:*hello there!*:・゚✧*:・゚✧
✧here is your answer:
.・゜゜・d. 2s + 6・゜゜・.
♥⛧i hope this helps!!
✧༺♥༻∞lmk if you need help on anything else!!∞༺♥༻✧
❀-kay♬
assume that the national average score on a standardized test is 1010, and the standard deviation is 200, where scores are normally distributed. what is the probability, expressed as a percentage, that a test taker scores at least 1600 on the test? round your answer to two decimal places. provide your answer below:
Assuming that the national average score on a standardized test is 1010, and the standard deviation is 200, where scores are normally distributed, the probability, expressed as a percentage, that a test taker scores at least 1600 on the test can be calculated as follows:
First, we standardize the test score of 1600 using the formula below:
Z = (X - μ)/σ
where Z is the standard score or z-score,
X is the test score,
μ is the population mean,
and σ is the population standard deviation.
Substituting the given values, we have:
Z = (1600 - 1010)/200Z = 2.95
The probability of obtaining a test score of at least 1600 on the test is the area to the right of the standard score of 2.95 under the normal distribution curve using a z-table or a calculator.
Rounding off to two decimal places, we get:
P(Z > 2.95) = 0.0029 or 0.29%
Therefore, the probability, expressed as a percentage, that a test taker scores at least 1600 on the test is 0.29%.
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Help please I can’t get past this question and I’ve looked everywhere for it and can’t find it. It’s one of those statements and reasons questions.
Answer:
see below
Step-by-step explanation:
<1 and <2 are supplements
<3 and <4 are supplements
<1 is congruent to <4
∠1 + ∠2 = 180 definition of supplementary angles
∠3 + ∠4 = 180 definition of supplementary angles
∠1 + ∠2 = ∠3 + ∠4 transitive property of equality
∠1 = ∠4 given
∠1 + ∠2 = ∠3 + ∠1 substitution property of equality
∠2 = ∠3 subtraction property of equality
∠2 ≅ ∠4 definition of congruent angles
A man and his wife share a lottery prize of $1 500 000 in the ratio of 41:34. What is the difference between the man's share and his wife's share
Answer:
$140,000
Step-by-step explanation:
Value of lottery = $1,500,000
Man's ratio = 41
Wife's ratio = 34
Total ratio = 41 + 34 = 75
Man's share = Man's ratio / Total ratio * Value of lottery
= 41/75 * $1,500,000
= 0.5466666666666 * $1,500,000
= $820,000
Wife's share = wife's ratio / total ratio * Value of lottery
= 34/75 * $1,500,000
= 0.4533333333333 * $1,500,000
= $680,000
Difference between the man's share and his wife's share
= Man's share - wife's share
= $820,000 - $680,000
= $140,000
The function g(x) contains the point (3,- 5). How is this point represented using function
notation?
a. g(-3) = 5
b. g(3) = -5
C. g(5) = -3
d. g(-5) = 3
Answer:
Step-by-step explanation:
Anna want to ell toy car at a craft fair for $ 12 each. The material for each car cot $ 3. 50 and the table rental at the fair i 34 dollar for the day. How many car mut anna ell for her revenue to equal her expenence
The toy cars Anna must sell for her revenue to equal her expense is 4 toy cars. The result is obtained by using the concept of calculating algebra.
Algebra with one variableTo calculate the algebra with one variable, sum up all the same variable and count the value.
Anna want to sell toy car at a craft fair. Each car is sold at a price of $ 12. The material for each car cost $ 3.50 and the table rental at the fair is 34 dollar for the day.
Find the toy cars must Anna sell for her revenue to equal her expense!
We have
Price of each toy car = $12Material of each toy car = $3.5Rental table = $34 per dayLet's say
a = the number of toy cars soldRevenue = Expense
a × $12 = (a × $3.5) + $34
12a = 3.5a + 34
12a - 3.5a = 34
8.5a = 34
a = 4 toy cars
Hence, Anna must sell 4 toy cars so that her revenue is equal to expense.
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The price of the radio was $14. The sales tax was 3.5%.
What was the total cost of the radio, including the sales
tax?
Answer:
14.49
Step-by-step explanation:
14 * 0.035 = 0.49
14 + 0.49 = 14.49