Answer:
The answer is B:14
Step-by-step explanation:
When you simply multiply 5% by 14, you get 0.7. So you know that 5% of 14 is 7.
please help! math: find the perimeter of the polygon below. use the correct formula!
the width is 3.8 and the length is 6.3
The perimeter of the rectangular polygon is given by P = 20.2 units
Given data ,
Let the perimeter of the polygon be represented as P
Now , the value of P is
Perimeter P of rectangle = 2 ( Length + Width )
Now , width is 3.8 and the length is 6.3
On simplifying , we get
P = 2 ( 3.8 + 6.3 )
P = 20.2 units
Hence , the perimeter is P = 20.2 units
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HELPPP
MA.7.DP.1.2
A group of students in the book club are debating whether high school juniors or seniors
spend more time on homework. A random sampling of juniors and seniors at the local high
school were surveyed about the average amount of time they spent per night on homework.
The results are listed in the table below.
Average Amount of Time on Homework Per Night (in minutes)
Juniors 125 90 95
80 100 100 120- 85 95 120 95 85
Seniors 135 70 65 100 35 175 80 80 90 65 120 60
Part A. Calculate and compare the measures of center for the data sets.
Part B. Calculate and compare the variability in each distribution.
Part C. Does the data support juniors or seniors spending more time on homework?
Explain your reasoning.
Mean (Juniors) = Sum / number of data points = 1085 / 12 ≈ 90.42
Median (Juniors) = (95 + 95) / 2 = 95
Mean (Seniors) = Sum / number of data points = 1095 / 12 ≈ 91.25
Median (Seniors) = (80 + 80) / 2 = 80
How to solve for the median of centerJuniors: 125, 90, 95, 80, 100, 100, 120, 85, 95, 120, 95, 85
First, sort the data: 80, 85, 85, 90, 95, 95, 95, 100, 100, 120, 120, 125
Sum = 1085
Mean (Juniors) = Sum / number of data points = 1085 / 12 ≈ 90.42
Median (Juniors) = (95 + 95) / 2 = 95
Seniors: 135, 70, 65, 100, 35, 175, 80, 80, 90, 65, 120, 60
First, sort the data: 35, 65, 65, 70, 80, 80, 90, 100, 120, 120, 135, 175
Sum = 1095
Mean (Seniors) = Sum / number of data points = 1095 / 12 ≈ 91.25
Median (Seniors) = (80 + 80) / 2 = 80
Variability
Juniors:
Range = max - min = 125 - 80 = 45
Seniors:
Range = max - min = 175 - 35 = 140
C. Based on the mean and median, it appears that seniors spend slightly more time on homework on average (mean ≈ 91.25) compared to juniors (mean ≈ 90.42).
However, the median time spent for seniors (80 minutes) is less than that of juniors (95 minutes), indicating that the data for seniors might be skewed by some outliers.
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Alondra has $350,000 saved for retirement in an account earning 2.9% interest, compounded monthly. How much will she be able to withdraw each month if she wants to take withdrawals for 22 years? Round your answer to the nearest dollar.
Alondra will be able to withdraw approximately $1,427 per month to take withdrawals for 22 years from her retirement account.
To calculate the monthly withdrawal amount, we need to use the present value formula, which is:
PMT = (PV * r) / (1 - (1 + r)⁻ⁿ)
where:
PV = present value = $350,000
r = monthly interest rate = 2.9% / 12 = 0.002417
n = number of months = 22 years * 12 months/year = 264 months
Substituting the values into the formula, we get:
PMT = (350000 * 0.002417) / (1 - (1 + 0.002417)⁻²⁶⁴)
PMT ≈ $1,427.07
This calculation assumes that the interest rate remains constant throughout the 22-year period, which may not be the case in reality.
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pleaseeeeee helppppppp
The statements that complete the function transformations are left, up, stretch and stretch
Completing the function transformationsFrom the question, we have the following parameters that can be used in our computation:
f(x) = (x + 94)²
Also, we have
f(x) = x²
This implies that f(x) = (x + 94)² is obtained by shifting f(x) = x² left by 94 units
Next, we have
f(x) = x² + 94
This implies that f(x) = x² + 94² is obtained by shifting f(x) = x² up by 94 units
Next, we have
f(x) = 94√x from f(x) = √x
This implies that f(x) = 94√x can be obtained from vertically stretching f(x) = √x by a factor of 94
Also, the graph of f(x) = √94x can be obtained from horizontally stretching f(x) = √x by a factor of 1/94
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Solve each equation by completing the square.
d² - 24d + c
Answer:
d² - 24d + c = (d - 12)² - 144 + c
Help pleaseeeee guys
On performing , the "row-operation" 2R₁ + R₂ → R₂ on the matrix "M", the resulting new-matrix is [tex]\left[\begin{array}{ccc}5&1&-5\\10&0&-8\end{array}\right][/tex] .
The matrix "M" is given as : [tex]\left[\begin{array}{ccc}5&1&-5\\0&-2&2\end{array}\right][/tex],
We have to apply the Row-Operation : 2R₁ + R₂ → R₂, on the matrix "M",
Performing the row-operation "2R₁ + R₂ → R₂" on a matrix "M" means multiplying the first-row of "M" by 2, and then adding the resulting values to the second-row of "M" to produce a new value for each element in the second row.
This operation does not affect the first row of "M" and changes the values in the second row of "M".
⇒ [tex]\left[\begin{array}{ccc}5&1&-5\\2\times5+0&2\times 1-2&2\times(-5)+2\end{array}\right][/tex],
⇒ [tex]\left[\begin{array}{ccc}5&1&-5\\10+0&2-2&-10+2\end{array}\right][/tex],
⇒ [tex]\left[\begin{array}{ccc}5&1&-5\\10&0&-8\end{array}\right][/tex].
Therefore, the new-matrix is [tex]\left[\begin{array}{ccc}5&1&-5\\10&0&-8\end{array}\right][/tex].
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There are 135 people in a sport centre.
77 people use the gym.
62 people use the swimming pool.
65 people use the track.
27 people use the gym and the pool.
23 people use the pool and the track.
31 people use the gym and the track.
4 people use all three facilities.
How many people didn't use any facilities?
8 people didn't use any of the gym pool or track facilities.
The number of people use any facilities need to subtract the total number of people who used at least one facility from the total number of people in the sport centre.
The total number of people who used at least one facility by adding the number of people who used each facility and subtracting the number of people who used two facilities and three facilities:
Total = Gym + Pool + Track - (Gym and Pool) - (Pool and Track) - (Gym and Track) + (Gym and Pool and Track)
Total = 77 + 62 + 65 - 27 - 23 - 31 + 4
Total = 127
The number of people who didn't use any facilities is:
135 - 127 = 8
8 people didn't use any of the gym, pool or track facilities.
The number of individuals who did not utilise any facilities must be subtracted from the total number of individuals who utilised at least one facility.
The total number of individuals who utilised at least one facility is calculated by adding the individuals who utilised each facility and deducting the individuals who utilised two and three facilities:
Total = Fitness Centre + Pool + Track - Fitness Centre and Pool - Fitness Centre and Track - Fitness Centre and Pool and Track
Total = 77 + 62 + 65 - 27 - 23 - 31 + 4
Total = 134-127
= 8
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Lai Lal Chinese Restaurant has seven items in its breakfast menu. The management of Lai Lai has just acquired some data and they would like to find out both popularity and profitability of its breakfast menu items based on their selling price, food cost percentage, sales volume and contribution margin (CM) from the past period. The financial data for the selling price, sales volume, and individual food cost dollar amounts are presented in the table below:
Breakfast Selling Price Food Cost Menu Item ($) (52 Sales Volume А $10.00 $3.00 250 B $16.00 $6.00 50 с $18.45 $8.00 60 D $14.75 $4.25 300 E $8.75 $2.50 80 F $12.50 $5.75 180 G $9.00 $2.60 280 TOTAL 1.200
Based on the information given in the table above, what are the specific classification of the breakfast menu items based on their profitability and popularity in order?
Based on the contribution margin and the sales volume, Menu Item D is the most profitable and popular.
What is the contribution margin?The contribution margin is the profitability that is shown in the difference between the selling price and the variable cost per unit of an item.
The contribution margin can be computed per unit or in total. Using the sales volume to multiply the contribution margin per item gives the total contribution margin in dollars.
Breakfast Selling Price Food Cost Sales Contribution Margin
Menu Item ($) ($) Volume Unit Total
А $10.00 $3.00 250 $7.00 $1,750
B $16.00 $6.00 50 $10.00 $500
C $18.45 $8.00 60 $10.45 $627
D $14.75 $4.25 300 $10.50 $3,150
E $8.75 $2.50 80 $6.25 $500
F $12.50 $5.75 180 $6.75 $1,215
G $9.00 $2.60 280 $6.40 $1,792
TOTAL 1,200
Thus, we can conclude that Menu Item D enjoys the highest profitability and popularity.
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1. The population of a town was 112 in 2014. The population doubles every year.
(a) Use the exponential growth model to write an equation that estimates the population tyears after
2014.
(b) Estimate the population of the town in 2023. Show your work.
Answer:
The estimated population of the town in 2023 is 57,344.
(a) Let P be the population in t years after 2014.
Since the population doubles every year, we can use the formula :
P = P₀(2)ⁿ, where P₀ is the initial population in 2014.
We have P₀= 112, so the equation is P = 112(2)ⁿ.
(b) To find the population in 2023, we need to find t when t + 2014 = 2023.
So t = 2023 - 2014 = 9.
Substituting t = 9 into the equation from part (a), we get:
P = 112(2)⁹
P ≈ 57,344
Therefore, the estimated population of the town in 2023 is 57,344.
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The figure below shows the distance between two cities on a map. The scale of the map is 1 }8 inch to 12 miles.
The actual distance between the two cities is 432 miles.
The figure shows a map of two cities, with a distance between them measured at 4.5 inches.
The scale of the map is given as 1/8 inch to 12 miles.
This means that 1/8 inch on the map represents a distance of 12 miles in real life.
To determine the actual distance between the two cities, we can use the scale provided.
1/8 inch on the map represents 12 miles in real life.
A proportion to find the actual distance between the cities:
1/8 inch on map = 12 miles in real life
4.5 inches on map = x miles in real life
To solve for x, we can cross-multiply and simplify:
1/8 × x = 12 × 4.5
x = 12 × 4.5 × 8
x = 432 miles
Maps with scales can be useful for determining distances, sizes, and proportions of objects in real life.
It allows us to visually represent complex spatial relationships and make measurements without physically being present at the location.
Remember to use the correct scale and make sure to convert units properly in order to accurately determine real-life measurements.
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a snail is 20 inches about the ground. It slips down 6 inches and the creeps up 12 inches. what is the snails height now?
Answer:
26 inches
Step-by-step explanation:
The snail starts 20 inches above the ground: +20
The snail slips (goes down) 6 inches: 20 - 6 = 14
The snail goes up 12 inches: 14 + 12 = 28
The snail is 28 inches above the ground.
Hope this helps!
HELP PLEASE PHOTO INCLUDED
Answer:
Eat that cookie and you will not regret about it
Tiffany drew the design below that she is going to use on a stained-glass window, above her front door. Identify all the rays in Tiffany’s design
The rays in Tiffany’s design are EA, FB, GC, GH, ED
Identifying all the rays in Tiffany’s designFrom the question, we have the following parameters that can be used in our computation:
Tiffany’s design
By definition, the rays in Tiffany’s design are lines that have one fixed endpoint and the other endpoint extends indefinitely
Using the above as a guide, we have the following:
The rays in Tiffany’s design are EA, FB, GC, GH, ED
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Mrs Sinha bought one-third metre of pink material and five-sixths metre of purple material. How much material did she buy in total?
Answer:
1 1/6 metre
Step-by-step explanation:
1/3 pink + 5/6 purple
To add, we need to get a common denominator
1/3 *2/2 = 2/6
2/6 + 5/6
7/6
Change from an improper fraction to a mixed number
1 1/6 metre
Help Quickly! Find the slope of the line.
A. -1/3
B. -3
C. 3
D. 1/3
please help me with this math question with solutions please
2×+4=4!
Answer: x= 10
Step-by-step explanation:
2x+4=24
2x=24-4
2x=20
x=10
Answer:
Step-by-step explanation:
2x+4=4
subtract 4 from both sides
2x=0
divide by 2 on both sides
x=0
what do you add to get the pattern 1, 8, 15, 22, 29 36, 43
Answer:
7
Step-by-step explanation:
Finding the common difference of an arithmetic sequence is easy peasy lemon squeezy. All you have to do is take any term and subtract it from the next one. For instance, if you take 1 and subtract it from 8, you get 7. If you take 8 and subtract it from 15, you get 7 again. You can do this for any pair of terms and you will always get 7. That's the common difference of the sequence 1, 8, 15, 22, 29, 36, 43. It means that you just add 7 to each term to get the next one. Isn't that neat?
HELP ASAP PHOTO INCLUDED
I cannot solve that problem at the moment.
Step-by-step explanation:
But I will help you in the future
Help I need the answer to this
The graph of the logarithmic function is attached below with a vertical asymptote at x = -8 and two integer coordinates at (2, -7) and (1, -10).
What is graph of a logarithmic function?The basic logarithmic function is of the form f(x) = logax (r) y = logax, where a > 0. It is the inverse of the exponential function ay = x. Log functions include natural logarithm (ln) or common logarithm (log).
To plot the graph of the given function, we simply need to use a graphing calculator.
The given function is;
f(x) = -3log₃(x + 8) - 4
To find the asymptotes of the graph;
x + 8 > 0
x > -8
The vertical asymptotes is at x = -8
The two points with integer coordinates are (2, -7) and (1, -10)
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-5-15x-10=-4x-8x
How do I do the is step by step?
Answer:
x = -5
Step-by-step explanation:
-5 - 15x - 10 = -4x - 8x
-5 - 10 = -4x - 8x + 15x
-15 = -12x + 15x
-15 = 3x
x = -5
#CMIIWWhich of the following is the equation of a line with a slope of -5/9
Answer:
Please help me important question in image
Please help me important question in image
Please help me important question in image
Step-by-step explanation:
Please help me important question Please help me important question in image
in image
Please help me iPlease help me important question in image
Please help me important question in image
mportant question in image
Please help me important question in image
PLS HELP MARKING AS BRAINLIST
Answer:
108 sq ft
Step-by-step explanation:
The formulas are given in the bottom right.
For the triangles*, the base = 8 ft. The height = 6 feet.
Area = (bh)/2.
Area = (8*6)/2 = (48)/2 = 24 sq ft.
There are two of those identical triangles. 24+24 = 48.
(*Another way to look at this is to say that the base = 8+8 = 16. Area = (bh)/2 = (16*6)/2 = 96/2 = 48. It doesn't matter, mathematically. I can't tell if they have tried to show this as 2 triangles or one.)
For the bottom rectangle, area = length x width = 6*10 = 60 sq ft.
Add them up! 24 + 24 + 60 = 108 sq ft.
e
B
0
14. The table shows the number of inches of
rain over five months. What would be an
appropriate display of the data? Explain.
(Lesson 2)
Month
Number
of Inches
of Rain
Jan. Feb. Mar.
1.5
2.2
3.6
Apr.
5.3
May
4.8
The graph of the given function is attached.
Given is a function for the rainfall in 5 months in inches.
We need to display the data,
So, as we can see that the data is not showing any proportion or pattern,
So, it can be displayed as a line chart.
Hence the chart is attached for the function.
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A person places $12500 in an investment account earning an annual rate of 8.3%,
compounded continuously. Using the formula V = Pert, where V is the value of the
account in t years, P is the principal initially invested, e is the base of a natural
logarithm, and r is the rate of interest, determine the amount of money, to the nearest
cent, in the account after 12 years.
20 POINTS
When a person places $12,500 in an investment account earning an annual rate of 8.3%, compounded continuously, based on the formula V = Pe^rt, the amount of money (future value), to the nearest cent, in the account after 12 years, is $33,842.88.
How the future value is determined:Using the formula A = Pe^rt where V is the future value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest.
In this situation, we can use an online finance calculator to determine the future value compounded continuously as follows:
Principal (P): $12,500.00
Annual Rate (R): 8.3%
Compound (n): Compounding Continuously
Time (t in years): 12 years
Result:
A (Future Value) = $33,842.88
A = P + I where
P (principal) = $12,500.00
I (interest) = $21,342.88
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What is the scale of the x-axis in this coordinate graph?
A. 1 tick mark represents 0.1 unit
B. 1 tick mark represents 0.2 unit
C. 1 tick mark represents 0.3 unit
D. 1 tick mark represents 0.4 unit
Answer:
B. 1 tick mark represents 0.2 unit
Step-by-step explanation:
Looking at the axis and going over 2 tick marks is .4
.4 /2 = .2
Each tick mark is .2 units
Maurice ran 110 meters in 20.9 seconds. Yolanda ran 110 meters in 20.0 seconds. Who had the fastest time, Maurice or Yolanda?
A.Yolanda
B.Maurice
apex
Answer: I believe the answer is Yolanda.
Step-by-step explanation: Because Maurice ran 110 meters in 20.9 seconds, which is slower than Yolanda. Completing the race in 20 seconds is better than 20.9 seconds.
Jai spots an airplane on radar that is currently approaching in a straight line, and that will fly directly overhead. The plane maintains a constant altitude of 5375 feet. Jai initially measures an angle of elevation of 15° to the plane at point A. At some later time, he measures an angle of elevation of 30° to the plane at point B. Find the distance the plane traveled from point A to point B. Round your answer to the nearest foot if necessary.
The distance that the plane traveled from point A to point B is given as follows:
10,750 ft.
What are the trigonometric ratios?The three trigonometric ratios are the sine, the cosine and the tangent, and they are defined as follows:
Sine of angle = length of opposite side to the angle divided by the length of the hypotenuse.Cosine of angle = length of adjacent side to the angle divided by the length of the hypotenuse.Tangent of angle = length of opposite side to the angle divided by the length of the adjacent side to the angle.The altitude of 5375 feet is the opposite angle, hence the position A is obtained as follows:
tan(15º) = 5375/A
A = 5375/tangent of 15 degrees
A = 20060 ft.
The position B is obtained as follows:
B = 5375/tangent of 30 degrees
B = 9310 ft.
Hence the distance is of:
20060 - 9310 = 10,750 ft.
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9. Given that the figure below is a rhombus,
find the m<4.
The measure of the angle 4, m∠4, obtained from the measure formed by the diagonals of a rhombus is; m∠4 = 38°
What are the measures of the angles formed by the diagonals of a rhombus?The diagonals of a rhombus bisect the angles at the vertices of the rhombus
The diagonals of a rhombus are perpendicular bisectors of each other, therefore;
The measure of the angle m∠2 = 90°
Therefore; m∠1 = 90° - 52° = 38°
The triangle with base angles ∠1, and ∠4, is an isosceles triangle, with the base angles ∠1, and ∠4
The base angles of an isosceles triangle are congruent, therefore;
∠1 ≅ ∠4
m∠1 = m∠4
m∠4 = m∠1 = 38°
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A 12 cm by 12 cm square piece of paper has 5 holes punched out of it. 4 of the holes are circles of radius 3 cm and 1 of the holes is a circle of radius 1 cm. The paper and punched holes can be visually interpreted as below. Determine the area of paper remaining after the holes have been punched out.
5 holes have been punched into a 12 cm by 12 cm square piece of paper. The area of remaining paper will be 27.714 cm².
Firstly, we will calculate the area of the square of paper in which the holes are punched.
Side of square = 12 cm
Area of square = side²
= (12) ²
= 144 cm²
Now, we will calculate the area of the bigger punch holes
Radius of big punch hole = 3 cm
Area of 1 big punch = π (radius) ²
= 22/7 × (3)²
22 / 7 × 9
= 198 / 7 cm²
Area of 4 punches = 4 × 198/7
= 792/7 cm²
Now, we will calculate the area of smaller punch whose radius is 1cm
Area = 22/7 × 1²
= 22/7 cm²
Now, we will calculate the total area covered by circles
Total area covered by circles = area of small punch + area of 4 big punch
= 22/7 + 792/7
= 814 /7 cm²
Remaining area = area of square - area of circles
= 144 - 814/7
= (1008 - 814) / 7
= 194 / 7
= 27.714 cm²
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Draw the following shapes on geoboard paper. Find the area of each shape by partitioning it into sub-shapes and finding the areas of the sub-shapes. Remember to label your answers.
Draw the following shapes on geoboard paper. Surround each triangle with a rectangle so that the vertices of the triangle are on the exterior of the rectangle. Think about how you can use rectangles to determine the areas of right triangles that are inside the rectangles.
Answer:
I apologize, I am not able to provide visual drawings or diagrams. However, I can still provide a step-by-step guide to solve the problem.
To find the area of each shape, we need to use rectangles to determine the areas of right triangles that are inside the rectangles. Here are the steps:
1. Draw the given shape on geoboard paper.
2. Surround each triangle with a rectangle so that the vertices of the triangle are on the exterior of the rectangle.
3. Identify the right triangles that are inside the rectangles.
4. Use the formula for the area of a triangle, which is A = (base x height) / 2, to find the area of each right triangle.
5. Use the formula for the area of a rectangle, which is A = length x width, to find the area of each rectangle.
6. Add up the areas of the triangles and rectangles to find the total area of the shape.
Remember to label your answers with the correct units (square units).