Answer Immeditely Please
Answer:
√429.
Step-by-step explanation:
Triangles BCD and ABC are similar, so corresponding sides are in the same ratio, so:
x/ AC = DC/x
x/39 = 11/x
x^2 = 11*39
x^2 = 429
x = √429
1. In a nation centre, the administrative fee is RM30 per student. The tuition fee is RM45 per subject for language subjects and RM40 per subject for other subjects.
(a) Express the total payment. J. for a student who registers for m language subjects and n other subjects.
(b) Zaleha registers for 3 language subjects and 2 other subjects. How much does she have to pay?
(c) Chan pays RM280 when she registers for 2 language subjects and p other subjects. Find the value of p.
2. The diagram shows a right pyramid with a square base.
(a) Form a formula by using the surface area of the pyramid, L,as the subject of the formula.
(b) Calculate the surface area of the pyramid if a 10 and b = 12.
(c) If L=192 and a=b, find the value of a
Answer:
Step-by-step explanation:
(a) The total payment for a student who registers for m language subjects and n other subjects can be expressed as:
Total payment = Administrative fee + Tuition fee for language subjects + Tuition fee for other subjects
Total payment = RM30 + RM45m + RM40n
Total payment = RM30 + 45m + 40n
(b) For Zaleha who registers for 3 language subjects and 2 other subjects, the total payment can be calculated as:
Total payment = RM30 + (3 x RM45) + (2 x RM40)
Total payment = RM30 + RM135 + RM80
Total payment = RM245
(c) Chan pays RM280 when she registers for 2 language subjects and p other subjects. We can use the formula derived in part (a) to find the value of p:
Total payment = RM30 + (2 x RM45) + (p x RM40)
RM280 = RM30 + RM90 + RM40p
RM280 - RM120 = RM40p
RM160 = RM40p
p = 4
Therefore, Chan registers for 2 language subjects and 4 other subjects.
(a) The surface area of a right pyramid with a square base can be calculated as:
L = base area + 1/2 x perimeter of base x slant height
The base of the pyramid is a square, so its area can be expressed as:
Base area = a^2
The perimeter of the base can be calculated as:
Perimeter of base = 4a
The slant height can be calculated using the Pythagorean theorem:
slant height = sqrt(h^2 + (a/2)^2)
where h is the height of the pyramid.
Substituting these values in the surface area formula, we get:
L = a^2 + 1/2 x 4a x sqrt(h^2 + (a/2)^2)
L = a^2 + 2a x sqrt(h^2 + (a/2)^2)
(b) If a = 10 and b = 12, then the surface area of the pyramid can be calculated as:
L = 10^2 + 2 x 10 x sqrt(h^2 + (10/2)^2)
L = 100 + 20sqrt(h^2 + 25)
Given that L = 192, we can solve for h:
192 - 100 = 20sqrt(h^2 + 25)
92 = 20sqrt(h^2 + 25)
4.6 = sqrt(h^2 + 25)
4.6^2 - 25 = h^2
h^2 = 2.76
h = sqrt(2.76)
h ≈ 1.66
Substituting these values in the surface area formula, we get:
L = 10^2 + 2 x 10 x sqrt(1.66^2 + (10/2)^2)
L ≈ 314.9
Therefore, the surface area of the pyramid is approximately 314.9 square units.
(c) If L = 192 and a = b, then the surface area formula can be simplified as:
L = a^2 + 2a x sqrt(h^2 + (a/2)^2)
192 = a^2 + 2a x sqrt(h^2 + (a/2)^2)
We also know that the height of the pyramid is equal to the side length of the triangular faces. Since the pyramid is a right pyramid, the height and slant height are related by the Pythagorean theorem:
h^2 + (a/2)^
You deposit $2,500 in an investment
account. The rate of growth is 4. 55% a year.
If you make no further deposits or
withdrawals, and the investment is allowed
to grow uninhibited, how long will it take for
your investment to reach $5,000? Round to
the nearest tenth.
It will take approximately 15.27 years for your investment to reach $5,000 at a growth rate of 4.55% per year.
Using the compound interest calculation, we can determine how long it will take for your investment to grow to $5,000 at a growth rate of 4.55% per year:
[tex]A = P(\frac{1 + r}{n} )^(^n^t^)[/tex]
Where:
A = the final amount ($5,000)
P = the initial deposit ($2,500)
r = the interest rate (4.55%)
n = the number of times interest is compounded per year (assuming yearly compounding, n=1)
t = the number of years
Plugging in the values, we get:
[tex]\$5,000 = \$2,500(\frac{1 + 0.0455}{1} )^(^1^t^)[/tex]
Simplifying, we get:
[tex]2 = (1.0455)^t[/tex]
Taking the natural logarithm of both sides, we get:
ln(2) = t ln(1.0455)
Solving for t, we get:
t = ln(2) / ln(1.0455) = 15.27 years
Therefore, it will take approximately 15.27 years for your investment to reach $5,000 at a growth rate of 4.55% per year.
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Wholesale price: $17
retail price: $25
markup on retail: ?
a. 8%
b. 32%
c. 47%
d. 14%
The markup on retail is 47%. The correct option is c.
he markup on retail price is calculated to determine the percentage increase from the wholesale price to the retail price. In this case, the wholesale price is $17 and the retail price is $25. By subtracting the wholesale price from the retail price ($25 - $17),
we find that the markup is $8. Dividing this markup by the wholesale price ($8 / $17) gives us a ratio. Multiplying this ratio by 100 converts it to a percentage, which is approximately 47.06%.
This means that the retail price is approximately 47% higher than the wholesale price. Option c, 47%, correctly represents the calculated markup on the retail price.
Therefore, the markup on retail is 47%, so the answer is (c).
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Casey bought an 100 pound bag of dog food . He gave his dogs the same amount of dog food each week. the dog food lasted eight weeks. How much dog food did Cassie give his dogs each week? give the answer as a fraction or a mixed number
The triangle above has the following measures.
s = 29 m
r= 63 m
Find the m/Q.
Round to the nearest tenth and include correct units.
Show all your work.
The value of m∠Q as shown in the right-angled triangle below is 62.59°.
What is a right-angled triangle?A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or any one angle is a right angle.
To calculate the value of m∠Q, we use the formula below
Formula:
m∠Q = cos⁻¹(s/r)........................ Equation 1Where:
s = 29 mr = 63 mSubstitute these values into equation 1
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PJ conducts an experimental study on the effects of soft music during high stakes science testing. He randomly assigns students at the school. In one condition he does not provide music for testing while in the other group he does provide the music. He administers a pretest at the beginning of the year and a posttest at the end of the year. PJ's design is best described as a:
PJ's design is best described as a randomized controlled trial (RCT), which is a type of experimental study that randomly assigns participants to a control group or an intervention group.
In this case, the control group did not receive the soft music during high stakes science testing, while the intervention group did. By administering both a pretest and a posttest, PJ was able to measure any differences in performance between the two groups. The use of randomization helps to ensure that any differences observed between the groups can be attributed to the intervention (soft music) rather than to other factors that may have influenced the results. Overall, PJ's RCT design is a rigorous way to test the effects of a specific intervention on a particular outcome.
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Winston drew a scale drawing of the elementary school. He used the scale 8 centimeters=10 meters. What is the scale factor of the drawing?
The scale factor of Winston's drawing of the elementary school is 0.008. The scale factor represents the relationship between the measurements on the drawing and the corresponding actual measurements.
To find the scale factor of Winston's drawing that has a scale of 8 centimeters = 10 meters,
Convert both units to the same unit. In this case, we will convert meters to centimeters.Since 1 meter = 100 centimeters, 10 meters = 10 * 100 = 1000 centimeters.Divide the drawing's unit by the actual unit.So, the scale factor of Winston's drawing of the elementary school is 0.008.
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Ayo can people who read team katsudon sus mangas rate my favorite ones. Number 1 : life with my cat kacchan. Number 2: whatever my pets say. Rn rate them only if you read then
The quality of a manga is subjective and it varies from person to person.
Quality of a manga is depending on their interests, preferences, and tastes.
Therefore,If anything favourite of one person that not mean another person also like the thing.
Manga ratings can be found on various online platforms such as MyAnimeList, MangaUpdates and Goodreads.
These all websites have a community of users who rate and review manga based on their own opinions and experiences.
If we want to get a rating for our favorite manga,
We can try posting your question on manga-related forums, social media groups, or other online communities where manga enthusiasts gather.
We can also ask your friends who are into manga to share their thoughts on the series we like.
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list the elements of U
how does the area of a rectangle help you find the area of a triangle, rhombus, and parallelogram???
The area of a rectangle can be used to find triangle, rhombus and parallelogram since the shapes are related to one another
How does the area of a rectangle help you find the area of a triangle, rhombus, and parallelogram?The area of a rectangle can be used to determine the area of a triangle, rhombus and parallelogram because these figures are somewhat similar to a rectangle.
When we join two triangles together at opposite end or we cut transversally between a rectangle from the diagonal, we would have two triangle.
When a rhombus is split across it's diagonal, it will produce two congruent triangles.
When a parallelogram is divided across it's diagonals, it produces two congruent triangles.
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The volume of a cone is 2560π cm cubed. The diameter of the circular base is 32 cm. What is the height of the cone?
Answer:
h = 30 cm
Step-by-step explanation:
Given:
V (volume) = 2560π cm^3
d (diameter) = 32 cm (r (radius) = 0,5 × 32 = 16 cm)
Find: h (height) - ?
[tex]v = \frac{1}{3} \times\pi {r}^{2} \times h[/tex]
[tex]h = \frac{v}{ \frac{1}{3} \times \pi {r}^{2} } = \frac{2560\pi}{ \frac{1}{3} \times \pi \times {16}^{2} } = 30[/tex]
[tex]h = \frac{2560\pi}{ \frac{1}{3} \times \pi \times {16}^{2} } [/tex]
what are the first three terms of the sequence 40-2n
Answer:
1 term-38. ,2nd term-36. ,3rd tern is34
if you borrow $1,400 for 3 years at an annual interest rate of 20% what the total amount of money you will pay back
Answer:
$2,240
Step-by-step explanation:
1400×3=4,200
4200×20=84,000
84,000÷100=840
840+1400=2,240
Please mark me the brainliest
You have a 35-mile commute into work. Since you leave very early, the trip going to work is easier than the trip home. You can travel to work in the same time that it takes for you to make it 28 miles on the trip back home. Your average speed coming home is 10 miles per hour slower than your average speed going to work. What is your average speed going to work?
Average speed going to work is 50 mph.
What is average speed to work?Let's assume that the average speed going to work is "x" miles per hour.
Since you can travel to work in the same time it takes for you to make it 28 miles on the trip back home, we can set up an equation using the formula:
time = distance / speed
The time it takes to travel 35 miles to work is:
time to work = 35 / x
The time it takes to travel 28 miles on the return trip is:
time to return = 28 / (x - 10)
We know that both times are equal, so we can set them equal to each other and solve for "x":
[tex]35 / x = 28 / (x - 10)[/tex]
Multiplying both sides by x(x - 10), we get:
[tex]35(x - 10) = 28x[/tex]
Expanding the left side and simplifying, we get:
[tex]35x - 350 = 28x[/tex]
[tex]7x = 35[/tex]
[tex]x = 50[/tex]
Therefore, your average speed going to work is 50 miles per hour.
To solve this problem, we used the formula for speed, distance, and time. We t up an equation using the fact that the time it takes to travel to work is equal to the time it takes to travel 28 miles on the return trip. We then solved for the average speed going to work by setting the two times equal to each other and solving for "x". Finally, we found that the average speed going to work is 50 miles per hour.
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A student is buying a shirt that has a regular price of $18. After using a coupon, the price of the shirt is 0. 75x, where x is the regular price of the shirt. The clerk includes 6% sales tax on the price of the shirt. How much change should the student receive if the student pays for the shirt using a $20 bill?
The student should receive $5.69 in change.
How to find the price?The price of the shirt after the coupon is applied is 0.75 times the regular price, so:
Price of the shirt = 0.75x
If x = $18, then the price of the shirt is:
Price of the shirt = 0.75($18) = $13.50
The clerk adds 6% sales tax to the price of the shirt:
Sales tax = 6% of $13.50 = 0.06($13.50) = $0.81
So the total cost of the shirt is:
Total cost = $13.50 + $0.81 = $14.31
If the student pays with a $20 bill, the change the student should receive is:
Change = $20 - $14.31 = $5.69
Therefore, the student should receive $5.69 in change.
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ASAP plis i need an answer and explanation
Answer: Z=21, Y=9, X=1
Step-by-step explanation:
Z---------
Since 3z and 63 are equal angles, then 3z must equal 63 as well. So 3 times what is 63? 3 times 21. Z=21.
X------1
2 times 1 is 2.
3 times 1 is 3. 3-1 is 2.
x=1
Y----
Same concept as Z. Since the length 13 and Y+4 are equal sides (definition of the kite figure I forget the proper name) then 13-4 is your answer. 9.
The school store sells spiral notebooks in four colors and three different sizes. The table shows the sales
by size and color for 386 notebooks What is the experimental probability that the next customer buys a
red notebook with 150 pages? Enter your answer as a simplified fraction.
Red
53
100 Pages
150 Pages
200 Pages
Green
31
47
16
Blue
21
57
22
Yellow
12
27
12
63
25
The experimental probability is
The experimental probability that the next customer buys a red notebook with 150 pages is 53/386 or 13.73%.
To find the experimental probability of the next customer buying a red notebook with 150 pages, we need to first identify the total number of red 150-page notebooks sold and then divide that by the total number of notebooks sold.
From the table, we can see that 53 red 150-page notebooks were sold. The total number of notebooks sold is 386.
The experimental probability is therefore the ratio of red 150-page notebooks sold to the total number of notebooks sold:
Probability = (Number of red 150-page notebooks) / (Total number of notebooks)
Probability = 53 / 386
The simplified fraction for the experimental probability is 53/386 or 13.73%.
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I NEED HELP ON THIS ASAP! PLEASE IT'S DUE TODAY, I WILL GIVE BRAINLIEST!!
Answer:
Function A: f(x) = -8^x
Function B: f(x) = 2^x
Function A has a greater horizontal asymptote. As x approaches negative infinity, Function A approaches y = 0 faster than Function B.
A little more difficult question.
8) John went to a vending machine and bought 2 bags of chips and 2 Powerades for
$3. 50. He then went back to the same vending machine and bought another bag of
chips and 3 Powerades for $3. 75. How much does a bag of chips cost, how much
does a Powerade cost?
The cost of a Powerade is $0.75 if 2 bags of chips and 2 Powerades cost $3.50 and one bag of chips and 3 Powerades cost $3.75.
Let the cost of one Powerade be x
The cost of one bag of chips be y
Cost of 2 bags of chips and 2 Powerades = $3.50
Cost of 2 bags of chips = 2y
Cost of 2 Powerades = 2x
2x + 2y = 3.50 ----(i)
Cost of one bag of chips and 3 Powerades= $3.75
Cost of 1 bag of chips = y
Cost of 3 Powerades = 3x
x + 3y = 3.75
Multiply the above equation by 2
2x + 6y = 7.50 -----(ii)
Subtract (ii) and (i)
4y = 4
y = $1
The cost of one bag of chips is $1
x + 3 = 3.75
x = $0.75
The cost of one Powerade is $0.75
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Ryann is filing Chapter 7 bankruptcy. She will be able to include $10,148.22 of her total debt of $112,758.00Calculate what percent of Ryann's total debt is included in the bankrup
Answer:
Step-by-step explanation:
To calculate the percentage of Ryann’s total debt that is included in the bankruptcy, you can divide the amount of debt included in the bankruptcy by the total debt and then multiply by 100.
So, the calculation would be: ($10,148.22 / $112,758.00) * 100 = 9%.
This means that 9% of Ryann’s total debt is included in the bankruptcy.
The graph below shows the relationship between temperature in degrees Fahrenheit and degrees Celsius.
What is the meaning of the y-intercept?
A the change in degrees Fahrenheit for each change of one degree Celsius
Bel change in degrees Celsius for each change of one degree Fahrenheit
the temperature in degrees Fahrenheit when the temperature is zero degrees Celsius
D the temperature in degrees Celsius when the temperature is zero degrees Fahrenheit
The y-intercept of the graph is: C. "the temperature in degrees Fahrenheit when the temperature is zero degrees Celsius."
What is the Meaning of the Y-intercept of a Situation?In mathematical terms, the y-intercept is the point where a line or curve intersects the y-axis on a coordinate plane.
In practical terms, the y-intercept of a situation often represents the starting point or initial value of a variable or function.
In the graph given above that shows the relationship between temperature in degrees Fahrenheit and degrees Celsius, the y-intercept is 32 degrees Fahrenheit, which means: C. "the temperature in degrees Fahrenheit when the temperature is zero degrees Celsius."
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A department store buys 200 shirts at a cost of $ 3600 and sells them at a selling price of $ 20 each. Find the percent markup.
The value of the calculated percent markup of the shirt is 11.1%
Finding the percent markup of the shirtFrom the question, we have the following parameters that can be used in our computation:
A department store buys 200 shirts at a cost of $ 3600 and sells them at a selling price of $ 20 each.
This means that
Cost price = 3600/200
Evaluate
Cost price = 18
The percent markup of the shirt is then calculated as
Percentage = (20 - 18)/18
Evaluate
Percentage = 11.1%
Hence, the percent markup of the shirt is11.1%
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Volume question 5 of 5 the rectangle represents the base of a right rectangular prism. the height of the prism is 6 inches. what is the volume of the prism? 13 o a. 87.9 in o b. 105.8 in 3 3 in o c. 12.6 in 2 o d. 75.6 in 3 submit
The volume of prism is 75.6 [tex]in^3[/tex]. The correct answer is option d,
We are given that the rectangle represents the base of a right rectangular prism and the height of the prism is 6 inches. To find the volume of the prism, we need to multiply the area of the rectangle by the height.
The area of the rectangle can be found by multiplying its length and width. However, we are not given any specific values for the length and width of the rectangle. Therefore, we cannot directly calculate its area.
Since we are given answer choices, we can use them to check which option gives the correct volume of the prism. We can start by assuming that the length, width, and height of the prism are integers, and then calculate the volume for each option until we find the one that matches.
Option a: 87.9 in^3 - This is not an integer, so we can eliminate this option.
Option b: 105.8 in^3 - This is not an integer, so we can eliminate this option.
Option c: 12.6 in^3 - This is too small, so we can eliminate this option.
Option d: 75.6 in^3 - To check if this is the correct answer, we can calculate the area of the rectangle by dividing the volume by the height.
Volume of the prism = area of rectangle x height
75.6 in^3 = (length x width) x 6 in
Length x width = 12.6 in^2
Now, we need to find two integers whose product is 12.6 in^2 and whose sum is 16 in (since the rectangle represents the base of a right rectangular prism). After some trial and error, we find that 3.15 in and 4 in satisfy these conditions.
Therefore, the length of the rectangle is 4 inches and the width is 3.15 inches.
Now, we can calculate the area of the rectangle by multiplying its length and width:
Area of rectangle = length x width = 4 in x 3.15 in = 12.6 in^2
Finally, we can calculate the volume of the prism:
Volume of prism = area of rectangle x height = 12.6 in^2 x 6 in = 75.6 in^3
Therefore, the correct answer is option d, 75.6 [tex]in^3[/tex].
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Kimi wants to teach her puppy 4 new tricks. in how many different orders can the puppy learn the tricks?
Answer:
3! = 6
Step-by-step explanation:
Once she teaches the puppy one trick there are 3 possible tricks left. After teaching the second trick there are 2 and after the third there is 1. Therefore, we multiply these numbers together to get 3(2)(1)=6 which is 3!.
The equation of the line of best fit is M(t)=-0.15t+3.70 where M (t) represents the average retail cost in dollars of whole milk in the united state
The function M(2) from the equation of the line of best fit M(t)=-0.15t+3.70 is M(2) = 3.4
The equation of the line of best fit is given as
M(t) = -0.15t + 3.70
The function M(2) means the value of the variable t is 2
i.e. t = 2
To calculate M(2), we substitute the known values of t = 2 in the equation M(t) = -0.15t + 3.70
So, we have
M(2) = -0.15 * 2 + 3.70
Evaluate the product in the expression
This gives
M(2) = -0.30 + 3.70
Evaluate the sum/difference in the expression
This gives
M(2) = 3.4
The above is the value of M(2)
Hence, the calculated value of M(2) is 3.4
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Craig needs to measure 2 3/8 cups. How many times must he fill a 1/3 cup measuring cup?
First, we need to convert the mixed number 2 3/8 to an improper fraction:
2 3/8 = (2 x 8 + 3) / 8 = 19/8
To find out how many times Craig needs to fill a 1/3 cup measuring cup, we can divide 19/8 by 1/3:
(19/8) / (1/3) = (19/8) x (3/1) = 57/8
Therefore, Craig needs to fill a 1/3 cup measuring cup 57/8 times to measure 2 3/8 cups.
Can you guys help pls
Copy and complete the table of values for y=x2+x
What numbers replace A B and C?
X -2 -1 0 1 2
Y 2 A B 2 C
The value of A, B and C from the given equation are 0, 0 and 6 respectively.
The given equation is y=x²+x.
Here, the table is
X -2 -1 0 1 2
Y 2 A B 2 C
When x=-1
y=(-1)²-1
y=0
So, A=0
When x=0
y=(0)²+0
y=0
So, B=0
When x=2
y=(2)²+2
y=6
So, C=6
Therefore, the value of A, B and C are 0, 0 and 6 respectively.
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Chris had a collection of 1,000 records at the beginning of the summer. After the summer, Chris had traded some of his records and now he has only 870 records.
What is the percent decrease of his record collection?
Please help worth 50 points if right.
Answer:
Step-by-step explanation:
git
1. at american high school, 35% of the students are freshmen. one-fourth of the students
are sophomores. nine-fortieths of the students are juniors. and there are 308 seniors.
how many students are freshmen?
There are 616 freshmen in the school according to fraction, percentage and number of different types of student.
Let us represent the total number of students in school as x. So, the equation that will form is -
Number of freshmen + sophomores + juniors + seniors = total number of students
35x/100 + x/4 + 9x/40 + 308 = x
Adding the values and converting into decimal.
0.825x + 308 = x
Rewrite the equation
308 = (1 - 0.825)x
308 = 0.175x
x = 308/0.175
Divide the values
x = 1760
So, number of freshmen = 0.35 × 1760
Multiply the numbers
Number of freshmen = 616
Thus, there are 616 freshmen.
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