Answer:
18. 24%
19. $60.75
Step-by-step explanation:
18. You have to divide the change by the original number to find percent change. In this case you need to do 12/50 = 0.24. Therefore, the discount is 24%.
19. You have to multiply the original price by 0.25 to find how much the discount costs, then decrease the discount cost from the original price, which in this case is 90*0.25 = 22.50, you then have to decrease the sales price by 10% so you have to repeat the same thing with 0.1, so 67.5*0.1 = 6.75, 67.5- 6. 75 = 60.75. The final price is $60.75.
PLEASE HELP PLEASE!!!!
(10.04 MC) Which of the following series converges? 00 Inn I. Σ (1)"| n=3 n+2 II. Σ (-1)^| 3n n=3 11. E. (-1² (7) 3 ||| n=3 OI only Oll only OI and III only O I, II, and III
The limit of the ratio is 1/7 is less than 1 series III converges . Thus, the correct answer is O I, II, and III.
To determine which of the given series converges series individually.
I. Σ (1)²(n+2) / n
This is an alternating series where the terms alternate between positive and negative the Alternating Series Test to check for convergence. For an alternating series Σ (-1)²n a-n, if the terms a-n decrease in absolute value and approach zero as n approaches infinity, then the series converges.
a-n = (1)²(n+2) / n = 1/n. The terms are positive and approach zero as n increases. Additionally, the terms decrease in absolute value since 1/n is decreasing for n > 0.
Therefore, series I converges.
II. Σ (-1)²(3n) / n
This is also an alternating series the Alternating Series Test to determine its convergence. The terms a-n = (-1)²(3n) / n simplified as a-n = (-1)²n / n. The terms alternate between positive and negative, and the absolute value of the terms 1/n decreases as n increases.
Thus, series II converges.
III. Σ (-1)²(n²) / (7²n)
This series does not follow the alternating series pattern determine its convergence solely based on the Alternating Series Test.
To analyze this series further the ratio test. The ratio test states that for a series Σ a-n, if the limit of |a-(n+1) / a-n| as n approaches infinity is less than 1, then the series converges absolutely.
Applying the ratio test to series III:
|(-1)²(n²+1) / (7²(n+1))| / |(-1)²(n²) / (7²n)|
= |(-1)²(n²+1) / (7²(n+1))| ² |(7²n) / (-1)²(n²)|
= |(-1)²(n²+1) / (-1)²(n²)| × |(7²n) / (7²(n+1))|
= |(-1) / (-1)| × |(7²n) / (7²(n+1))|
= 1 × 1/7
= 1/7
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2. The sum of two numbers is 51 and the greater number is twice the smaller number. Find the numbers aj set up the variables (2 marks) Let Then represent the first number will represent the second number b) What is the equation that represents the above situation? (2 marks) c) Solve the equation. (2 marks)
Answer:
Larger number = 34
Smaller number = 17
Step-by-step explanation:
Given that:
Sum of numbers = 51
Let,
x be the larger number
y be the smaller number
According to given statement;
x+y=51 Eqn 1
x = 2y Eqn 2
Putting x=2y in Eqn 1
2y+y=51
3y=51
Dividing both sides by 3
\(\frac{3y}{3}=\frac{51}{3}\\y=17\)
Putting y=17 in Eqn 2
x=2(17)
x=34
Hence,
Larger number = 34
Smaller number = 17
1. Find the midpoint of AB
given A(-3, -4) and B(1,6)
Answer:
-1,1
Step-by-step explanation:
because if you plot the points that is half.
What are the domain and the range of this graph?
The domain is x≥0 and the range is y≥0.
The domain is x≥1 and the range is y≤2.
The domain is x≥2 and the range is y≥1.
The domain and range is the set of all real numbers.
Answer:
B. The domain is x ≥ 1 and the range is y ≤ 2Step-by-step explanation:
The graphed line has start point at (1, 2) and no end point.
It is a decreasing function as the line goes down, and is continuous..
The domain, x ≥ 1, the range, y ≤ 2 as described above.
Correct answer choice is B
The domain and the range of this graph is x≥1 and y≤2, respectively.
Thus, option (B) is correct.
From the given graph , the graphed line begins at the point (1, 2) and extends indefinitely in a downward direction without reaching an endpoint. This line represents a continuous decreasing function.
The values of x in the domain are greater than or equal to 1, while the corresponding y values in the range are less than or equal to 2, consistent with the characteristics described above.
Thus, option (B) is correct.
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the total surface area of a cube is 384cm3 the length of the edge of the cube is?
Solving for a
\(a = \sqrt{ \frac{A}{6} } \\ = \sqrt{ \frac{384}{6} } \\ = 8cm\)B is between A and C. C is between B and D. If BC = 45 and CD is 20. If AB = CD, what is the measure of AD?
AD =
Answer:
AD = 85
Step-by-step explanation:
AD = AB + BC + CD ( substitute values , noting AB = CD = 20 ) , then
AD = 20 + 45 + 20 = 85
Estimate the mean high temperature with
90% confidence.
60
73
88
86
103
79
67
72
89
88
76
87
The accuracy of any estimate of the mean high temperature will depend on the quality and quantity of data available, as well as the methods used to analyze and interpret this data.
To estimate the mean high temperature with a value of 797687, we need to first understand what this value represents. Assuming that this value represents the high temperature for a certain area or region, we can use statistical methods to estimate the mean high temperature for this area.
One way to estimate the mean high temperature is to take a sample of high temperature data for this area, and then calculate the average of this sample. This sample should be large enough to provide a representative estimate of the population mean, but not so large as to be impractical or expensive.
Another way to estimate the mean high temperature is to use historical data or climate models to predict future high temperatures. This method requires knowledge of past trends and patterns in temperature data, as well as an understanding of the factors that influence high temperatures in this area.
It is important to use sound statistical techniques and to be aware of potential sources of bias or error when making any estimates of this nature.
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anders makes scones using sugar,butter and flour in the ratio 1:2:8. He makes the scones using 100g of sugar, 300g of butter and 400g of flour.How much of each ingredient does he use?
Based on the ratio, Anders uses 72.73g of sugar, 145.46g of butter, and 581.84g of flour to make his scones.
Find the number by the ratioAnders makes scones using the ratio 1:2:8 for sugar, butter, and flour respectively. This means that for every 1 gram of sugar, he uses 2 grams of butter and 8 grams of flour.
To find out how much of each ingredient he uses, we can use the following steps:
1. Add the ratios together: 1 + 2 + 8 = 11
2. Divide the total amount of ingredients by the sum of the ratios: 100 + 300 + 400 = 800 / 11 = 72.73
3. Multiply each ratio by the result from step 2 to find the amount of each ingredient:
Sugar: 1 x 72.73 = 72.73g
Butter: 2 x 72.73 = 145.46g
Flour: 8 x 72.73 = 581.84g
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If your good at Geometric Congruence, please help me! Solve for x.
#43 please, still checking work..... p.s. if im slow to reply i am sorry, ive been doing homework and correcting it for around 9 hours.
Given that:
Foci: (0,3), (0,-3)
Co-vertces: (1,0), (-1,0)
The foci are on the y-axis, so the major axis is the y-axis. Thus the equation will have the form:
\(\frac{x^2}{b^2}+\frac{y^2}{a^2}=1\)The foci are (0,3) and (0,-3), so
\(c=3\Rightarrow c^2=9\)The co-vertices are (1, 0) and (-1, 0), so
\(b=1\Rightarrow b^2=1\)The co-vertices and foci are related by the equation
\(c^2=a^2-b^2\)Solving for the square of a.
\(\begin{gathered} 9=a^2-1 \\ a^2=10 \end{gathered}\)Substituate the obtained values into the standard form of he ellipse. Hence the equation of the ellipse is
\(\frac{x^2}{1}+\frac{y^2}{10}=1\)Please help me please help me please help me please help, please help
A cone has a height of 13 yards and a radius of 12 yards. What is its volume? Use л ~ 3.14 and round your answer to the nearest hundredth.
Please help me
The volume of the cone is 1960.64 cubic yards.
We have,
The formula for the volume of a cone is:
V = (1/3)πr²h
where π is approximately 3.14, r is the radius, and h is the height.
Substituting the given values, we get:
V = (1/3) x 3.14 x 12² x 13
V = (1/3) x 3.14 x 144 x 13
V = 1/3 x 3.14 x 1872
V = 1960.64
Rounding to the nearest hundredth, we get:
V = 1960.64
Therefore,
The volume of the cone is 1960.64 cubic yards.
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Evaluate the expression 9b−6b÷3b for b=7.
Answer:
The answer is 1.
Step-by-step explanation:
9 times 7 equals 63. 6 times 7 equals 42. 3 times 7 equals 21.
63 take away 42 is 21.
21 divided by 21 is 1!
Answer:
I'm not sure which one it is, so I did both.
1. 9b-(6b/3b) = 9b-2
b = 7
9(7)-2 = 61
2. (9b-6b)/3b = 1
Bob plays a game where, for some number $n$, he chooses a random integer between $0$ and $n-1$, inclusive. If Bob plays this game for each of the first four prime numbers, what is the probability that the sum of the numbers he gets is greater than $0$
The probability that the sum of the numbers he gets is greater than 0 is 209/210.
What is probability?Probability is the branch of mathematics concerned with numerical descriptions of the likelihood of an event occurring or of a proposition being true. The probability of an event is a number between 0 and 1, where 0 represents the event's impossibility and 1 represents certainty. By dividing the favorable number of outcomes by the total number of possible outcomes, the probability of an event can be calculated.To find the probability that the sum of the numbers he gets is greater than 0:
The first four prime numbers are 2,3,5,7.So for the first game, he chooses either 0 or 1.For the second one, he chooses 0,1, or 2.For the third, he chooses 0,1,2,3 or 4.For the fourth, he chooses 0,1,2,3,4,5, or 6.There are a total of 2 × 3 × 5 7 = 210 choices.There is only one case where the sum is zero.So there are 209 cases where the sum is greater than zero.The probability that the sum is greater than zero is 209/210.Therefore, the probability that the sum of the numbers he gets is greater than 0 is 209/210.
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Find the sum of the interior angles
of a polygon with 35 sides.
Instructions: Find the missing side lengths. Leave your answers as radicals in simplest
form.
Answer:
x = 40
y= 20
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
sin theta = opp / hyp
sin 60 = 20 sqrt(3)/ x
x sin 60 = 20 sqrt(3)
x = 20 sqrt(3)/ sin 60
x = 20 sqrt(3)/ sqrt(3)/2
x = 20 *2
x = 40
tan theta = opp /adj
tan 60 = 20 sqrt(3)/y
y = 20 sqrt(3)/ tan 60
y = 20 sqrt(3) / sqrt(3)
y = 20
the distribution of heights for adult men in a certain population is approximately normal with mean 70 inches and standard deviation 4 inches. which of the following represents the middle 80 percent of the heights? responses 50 inches to 73.37 inches 50 inches to 73.37 inches 62 inches to 78 inches 62 inches to 78 inches 64.87 inches to 75.13 inches 64.87 inches to 75.13 inches 66 inches to 74 inches 66 inches to 74 inches 66.63 inches to 90 inches
The correct answer is 64.87 inches to 75.13 inches.
To find the middle 80 percent of heights, we need to find the values of x that correspond to the 10th and 90th percentiles of the normal distribution with mean 70 inches and standard deviation 4 inches.
Using a standard normal table or calculator, we can find that the z-score corresponding to the 10th percentile is -1.28 and the z-score corresponding to the 90th percentile is 1.28.
So,
x = μ + zσ
x1 = 70 + (-1.28)(4) = 64.88
x2 = 70 + (1.28)(4) = 75.12
Therefore, the middle 80 percent of heights is between 64.88 inches and 75.12 inches, or approximately 64.87 inches to 75.13 inches.
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Adult tickets for the school musical are sold for $3.50 and student tickets are sold for $2.50 on a given night 425 tickets were sold for $ 1237.50. Wrote a system of linear equations for the problem
Answer:
3.5x + 2.50y = 1237.50
425 = x + y
Step-by-step explanation:
number of adult tickets: x
number of student tickets: y
3.5x + 2.50y = 1237.50
( value of adult ticket [3.50]* number of adult tickets [x]) + (value of student ticket [2.50] * number of student tickets [y]) = total value (1237.50)
425 = x + y
(number of adult tickets [x]) + (number of student tickets [y]) = total (425)
A 5-pack of raffle tickets costs $15.55. What is the unit price?
Answer: if you divide 15.55 by 5 the unit price is $3.11
8th grade math :( tysm to who helps
Mark wants to find the area of a circle with a diameter of 6 cm. Which expressions can he use to find the area of the circle in square centimeters? Choose all the correct answers.
a.3^2*pi
b.6*pi
c.2*3*pi
d.3*3*pi
e.6*pi
Answer:
B and C
(I'm not sure if b and e are supposed to be the same though) if they are then, b, c, and e
Answer:
The correct options are Option A and Option D
Step-by-step explanation:
Mark wants to find the area of a circle with a diameter of 6 cm.
We need to find the expressions can he use to find the area of the circle in square centimetres?
The formula used to find area of circle is: \(Area=\pi \:r^2\)
We are given Diameter = 6 cm
Radius = Diameter/2 = 6/2 = 3 cm
We get radius = 3cm
Now, putting values and finding area
\(Area=\pi \:r^2\\Area=\pi \:(3)^2\\Area=3^2\:\pi\)
We can also write it as:
\(Area=3*3*\:\pi\)
So, correct options are Option A and Option D
− 7 < x ≤ − 4 x is an integer. Write down the possible values of x
Answer:
-5 and -6
Step-by-step explanation:
-5 and -6 are the only numbers between -7 and -4
Answer ASAPP Which of these expressions is equivalent to 6r + r + 3 + 6?
The expression that is equivalent to the given expression, 6r + r + 3 + 6, is 7r + 9
Determining the equivalent of an expressionFrom the question, we are to determine the expression that is equivalent to the given expression.
The given expression is
6r + r + 3 + 6
To determine the expression that is equivalent to the given expression, we will simplify the expression
To simplify the expression, we will add 6r and r together
6r + r = 7r
Thus,
The expression becomes
7r + 3 + 6
Also, we will further simplify the expression by add 3 and 6 together
3 + 6 = 9
Thus, the expression becomes
7r + 9
Hence, the expression is 7r + 9
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Which is a correct name for the angle shown?
Answer:
CBA
Step-by-step explanation:
We can name the angle B
Or name the angle ABC
Or name the angle CBA
The vertex of the angle must be in the center
Answer:
The answer is CBA
Step-by-step explanation:
What is the probability that either event will occur?
Now, find the probability of event A and event B.
A
B
6
6
20
20
P(A and B) = [?]
The probability of event A and event B is 6.
Given that, P(A)=6, P(B)=20 and P(A∩B)=6.
P(A/B) Formula is given as, P(A/B) = P(A∩B) / P(B), where, P(A) is probability of event A happening, P(B) is the probability of event B.
P(A/B) = P(A∩B) / P(B) = 6/20 = 3/10
We know that, P(A and B)=P(A/B)×P(B)
= 3/10 × 20
= 3×2
= 6
Therefore, the probability of event A and event B is 6.
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In one year, a school uses 13,470 pieces of white paper, 7,970 fewer pieces of blue paper than white paper, and 2,400 fewer pieces of yellow paper than blue paper. how many pieces of paper does the school use in all? solve on paper. then check your answer on zearn. the school uses pieces of paper.
The school uses 22,070 pieces of paper in all.
What is algebraic operations?Algebraic operation is any one of the common operations of arithmetic, Which include addition, subtraction, multiplication, division, raising to a Whole number power, and taking roots (fractional power). These Procedures could be applied to numerical data, in which case they are Frequently referred to as arithmetic operations. Similar operations can be Carried out on variables, algebraic expressions, and, more generally, on Components of algebraic structures like groups and fields. A Mathematical operation could also be defined simply as a function from a Cartesian power of a set to the same set.
Given that:school uses 13,470 pieces of white paper, 7,970 fewer pieces of blue paper than white paper, and 2,400 fewer pieces of yellow paper than blue paper.
The school uses 22,070 pieces of paper in all.
IT is already given that the school uses 13,470 pieces of white paper. Then it says that there are 7,970 fewer pieces of blue paper than white Paper. So if you subtract 7,970 from 13,470, you get that the school used 5,500 pieces of blue paper. Then it says that there are 2,400 fewer Pieces of yellow paper than blue paper. So when you subtract 2,400 From 5,500, you get that the school used 3,100 pieces of yellow paper. So if you do 13,470+5,500+3,100, you get that the school used 22,070 Pieces of paper in total.
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I need help please help me
Answer:
B
Step-by-step explanation:
12.5% of 480 is 60 and 480-60=420
Answer:
c
Step-by-step explanation:
first subtract 60 from 480 and you get 420
which of the internet protocols contains the ip address? group of answer choices tcp smtp all of the other answers internet protocol
The internet protocol that contains the IP address is the Internet Protocol (IP), the correct option is Internet protocol. The other options, TCP and SMTP, are protocols that operate on top of IP and do not contain the IP address themselves.
The correct answer is the Internet Protocol (IP). IP is responsible for delivering packets of data from the source to the destination based on IP addresses, while other protocols like TCP and SMTP handle different aspects of data transmission and communication.
Therefore, the correct option is Internet protocol.
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A bakery sells a dozen bagels for $8.50 and a dozen donuts for $3.99. Write an expression for the
cost of buying b dozen bagels and d dozen donuts.
Answer:
Total cost = ($8.50b) + ($3.99d)
Step-by-step explanation:
In a bakery, the cost of a dozen bagels = $8.50
and the cost of a dozen donuts = $3.99
1 Dozen = 12 pieces
Let 'b' represents the number of bagels (in dozen) and d represents dozen donuts.
The expression that represents total cost of b dozen bagels and d dozen donuts would be :
Total cost = ($8.50b) + ($3.99d)
Mrs. Yamamoto is taking her class to the theater. The total cost for the students' tickets is $55.
Let y represent the number of students in Mrs. Yamamoto's class. Which expression
renresents the cost of each ticket in dollars?
Answer:
look it up i need my coins
Step-by-step explanation: