If scores of English's test are said to be normally distributed, then the score which separates the top 59% from the bottom 41% is 35.1.
The Scores on an English's test are normally distributed,
The a mean score is (μ) = 31.5 and the standard deviation is (σ) = 7.3,
So, P(Z > z) = 59% = 0.59,
⇒ P(Z < z) = 1 - 0.59,
⇒ P(Z < -0.23) = 0.41 ...by using normal table,
Let x be the score which separates the top 59% from the bottom 41%,
So, x = z × σ + μ,
⇒ x = -0.23×7.6 + 36.8,
⇒ x = -1.748 + 36.8,
⇒ x = 35.052 ≈ 35.1
Therefore, the required separating score is 35.1.
Learn more about Standard Deviation here
https://brainly.com/question/26758035
#SPJ4
A piece of of blue yarn is 5 3/10 yards long. A piece of pink yard is 4 times as long as the blue yard. How much longer is the pink yard than the blue yard.
Is anyone willing to help me solve Absolute Value homework?? It doesn't look awful but I just do not understand.. Help would be Much appreciated!!!
how far from the base of a building must a 15-ft ladder be placed so that it reaches 12 ft up the wall?
The base of the ladder must be placed 3 ft from the base of the building. The total length of the ladder is 15 ft.
1. The ladder must reach 12 ft up the wall, so we need to calculate the distance from the base of the building to 12 ft.
2. The total length of the ladder is 15 ft.
3. Subtract the length of the ladder (15 ft) fromthe desired height (12 ft) to get the distance from the base of the building.
4. 12 ft - 15 ft = -3 ft
5. Since the distance cannot be negative, the base of the ladder must be placed 3 ft away from the base of the building.
Learn more about length here
https://brainly.com/question/13194650
#SPJ4
Suppose you have not yet taken the final exam. We have been asked to report your current letter grade in the scale of A, A-, B+, B, B-, C+, C, C-, D+, D, D-, or F. Compute your numerical average grade before taking the final on the scale of 1 to 100. This numerical grade will be used to identify your letter grade. Transform your before-final numerical grade into the letter grade based on the following rule: Less than 60: F, less than 63: D-, less than 67: D, less than 70: D+, less than 73: C-, less than 77: C, less than 80: C+, less than 82: B-, less than 86: B, less than 88: B+, less than 92: A-, otherwise A.
The potential answers are: ____________
The potential letter grades are A, A-, B+, B, or B-, assuming a score of 73 or higher on the final exam.
The potential answers are:
A, A-, B+, B, or B-
I have not yet taken the final exam, so my current numerical average grade is unknown. However, I know that I have earned at least a C- in the class since I have not failed any assignments or exams.Based on the grading scale, a C- is equivalent to a numerical grade of 73. Therefore, my current numerical average grade must be at least 73.The only letter grades that are possible for me to earn if I score a 73 or higher on the final exam are A, A-, B+, B, or B-.Therefore, the potential answers to the question are A, A-, B+, B, or B-.It is important to note that these are just the potential answers. I could still earn a lower grade on the final exam, in which case my final letter grade would be lower.
However, based on my current performance in the class, I believe that I have a good chance of earning a grade of A, A-, B+, B, or B- on the final exam.
Learn more about numerical here
https://brainly.com/question/25734188
#SPJ4
purchased a DVD player on sale. The original selling price was $. The sale price was $.
what are the prices?
solve pls brainliest
Answer:
1) No it repeating
2)No it doesn't terminate nor repeat
3) yes this terminates
4) no its repeating
Step-by-step explanation:
Your sample consists of 49 subjects, with a mean of 33.8 and the (population) standard deviation is known and equals 3.22. Calculate the test statistic BY HAND:
The test statistic is approximately -2.03.
To calculate the test statistic, we can use the one-sample t-test formula:
t = (x - μ) / (s / √n)
Where:
x is the sample mean,
μ is the hypothesized population mean,
s is the sample standard deviation,
n is the sample size.
In this case, we have:
x = 44.3 (sample mean)
μ = 44.6 (hypothesized population mean)
s = 1.01 (sample standard deviation)
n = 46 (sample size)
Plugging in the values, we can calculate the test statistic:
t = (44.3 - 44.6) / (1.01 / √46)
= -0.3 / (1.01 / √46)
= -0.3 / (1.01 / 6.782)
≈ -0.3 / 0.148
Rounding to 2 decimal places, the test statistic is approximately -2.03.
Learn more about test statistic click;
https://brainly.com/question/31746962
#SPJ4
Complete question =
Testing:
H0:μ=44.6
H1:μ<44.6
Your sample consists of 46 subjects, with a mean of 44.3 and standard deviation of 1.01.
Calculate the test statistic, rounded to 2 decimal places.
Money Corp. frequently uses a forward hedge to hedge its Malaysian ringgit (MYR) receivables. For the next month, Money has identified its net exposure to the ringgit as being MYR1,500,000. The 30-day forward rate is $.23. Furthermore, Money's financial center has indicated that the possible values of the Malaysian ringgit at the end of next month are $.20 and $.25, with probabilities of .30 and .70, respectively. Based on this information, the revenue from hedging minus the revenue from not hedging receivables is:
The revenue from hedging minus the revenue from not hedging receivables can be calculated by considering the net exposure to the Malaysian ringgit, the forward rate, and the probabilities of different exchange rate outcomes.
To calculate the revenue from hedging minus the revenue from not hedging receivables, we need to compare the outcomes of hedging versus not hedging in terms of the exchange rate.
If Money Corp. hedges its receivables, it will lock in the forward rate of $.23 for the net exposure of MYR1,500,000. Therefore, the revenue from hedging will be:
Revenue from Hedging = Net Exposure * Forward Rate = MYR1,500,000 * $.23
To calculate the revenue from not hedging, we consider the probabilities associated with each exchange rate outcome. The expected revenue from not hedging is calculated by multiplying each possible value by its corresponding probability and summing the results:
Expected Revenue from Not Hedging = (Revenue at $.20 * Probability of $.20) + (Revenue at $.25 * Probability of $.25)
Learn more about probability here:
https://brainly.com/question/31828911
#SPJ11
Given a set of 10 letters { I, D, S, A, E, T, C, G, M, W}, answer the following: len ( I, D, S, A, a) With the given letters above, we can construct a binary search tree (based on alphabetical
ordering) and the sequence < C, D, A, G, M, I, W, T, S, E is obtained by post-order traversing this tree. Construct and draw such a tree. NO steps of construction required.
The Binary Search Tree is as follows:
E
/ \
S T
/ \
I W
/ \
A M
/ \
C G
\
D
The set of letters is {I, D, S, A, E, T, C, G, M, W} and len (I, D, S, A, a) = 5
Binary Search Tree:The binary search tree based on the alphabetical ordering of the letters is:
post-order sequence is: C, D, A, G, M, I, W, T, S, E.
To draw the binary search tree for the given post-order sequence, follow the steps below:
Start with the root node E and mark itFor the given post-order sequence C, D, A, G, M, I, W, T, S, E, identify the last element E as the root node. This node will be at the center of the drawing.Place the node containing the element S to the left of E, and mark it. Similarly, place the node containing the element T to the right of E, and mark it.Place the node containing the element I to the left of S, and mark it. Similarly, place the node containing the element W to the right of T, and mark it.Place the node containing the element A to the left of I, and mark it. Similarly, place the node containing the element M to the right of W, and mark it.Place the node containing the element C to the left of A, and mark it. Similarly, place the node containing the element G to the right of M, and mark it.Place the node containing the element D to the right of C, and mark it. Similarly, place the node containing the element E to the right of G, and mark it. This completes the construction of the binary search tree.To know more about Binary Search Tree, visit:
https://brainly.com/question/30391092
#SPJ11
Which proportion would you use to find what percent 6 is of 40?
Answer:
6/100 = x/40
Step-by-step explanation:
6% is represented by 6/100, x is the variable in the proportion, and 40 is the whole you are finding the percentage of
James takes out a loan of 9000 euros which keeps on charging simple interest at a rate of 3% of the original amount per annum until it is cleared. James pays of 770 euros each year to reduce the loan. After how many years will James have fully cleared the loan?
James will fully clear the loan after approximately 12 years when the remaining balance reaches zero.
To determine the number of years it will take for James to fully clear the loan, we need to calculate the remaining balance after each payment and divide the initial loan amount by the annual payment until the remaining balance reaches zero.
The loan amount is 9000 euros, and James pays off 770 euros each year. Since the interest is charged at a rate of 3% of the original amount per annum, the interest for each year will be \(0.03 \times 9000 = 270\) euros.
In the first year, James pays off 770 euros, and the interest on the remaining balance of 9000 - 770 = 8230 euros is \(8230 \times 0.03 = 246.9\)euros. Therefore, the remaining balance after the first year is 8230 + 246.9 = 8476.9 euros.
In the second year, James again pays off 770 euros, and the interest on the remaining balance of 8476.9 - 770 = 7706.9 euros is \(7706.9 \times 0.03 = 231.21\) euros. The remaining balance after the second year is 7706.9 + 231.21 = 7938.11 euros.
This process continues until the remaining balance reaches zero. We can set up the equation \((9000 - x) + 0.03 \times (9000 - x) = x\), where x represents the remaining balance.
Simplifying the equation, we get 9000 - x + 270 - 0.03x = x.
Combining like terms, we have 9000 + 270 = 1.04x.
Solving for x, we find x = 9270 / 1.04 = 8913.46 euros.
For more such questions on loan
https://brainly.com/question/25696681
#SPJ8
PLz DO it all I will give brainlest and thanks.
Answer:
4.1 1/4
5.2 1/42
6.2 1/42
Step-by-step explanation:
Find the approximate side lengths and perimeter of quadrilateral WXYZ. If necessary, round your answers to the nearest hundredth.
The approximate length of segment WX is
\(\left[\begin{array}{ccc}2\\4.12\\4.47\\5\end{array}\right]\)
The approximate length of segment XY is
\(\left[\begin{array}{ccc}2\\4.12\\4.47\\5\end{array}\right]\)
The approximate length of segment YZ is
\(\left[\begin{array}{ccc}2\\4.12\\4.47\\5\end{array}\right]\)
The approximate perimeter of quadrilateral WXYZ is \(\left[\begin{array}{ccc}14\\14.47\\15\\15.59\end{array}\right]\)
Answer:
The answer is given below
Step-by-step explanation:
Given that the location of the points are W = (3, 1) , X = (7, -1), Y = (7, -3) and Z = (3,-3)
The distance between two points A(x1, y1) and B(x2, y2) is given by the formula:
\(|AB|=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}\)
Therefore, the side length of the quadrilaterals are:
\(|WX|=\sqrt{(-1-1)^2+(7-3)^2}=\sqrt{20} =4.47\)
\(|XY|=\sqrt{(-3-(-1))^2+(7-7)^2}=\sqrt{20} =2\\\\|YZ|=\sqrt{(-3-(-3))^2+(3-7)^2}=\sqrt{20} =4\\\\|ZW|=\sqrt{(-3-1)^2+(3-3)^2}=\sqrt{20} =4\)
The Perimeter of the quadrilateral = |WX| + |XY| + |YZ| + |ZX| = 4.47 + 2 + 4 + 4 = 14.47 units
Answer:
4.47,
2
4
14.47
Step-by-step explanation:
The speed of light is 3 x 108 m/s. If its frequency is 4.11 x 104 Hz, what is its wavelength?
The wavelength of the light wave is approximately 729.94 meters.
What is the speed of light?The speed of light is regarded as a fundamental natural constant. Its relevance extends well beyond its role in characterizing an electromagnetic wave characteristic.
The speed of light is a constant, and it is equal to the product of the frequency of a light wave and its wavelength.
The speed of light is 3 x 108 m/s. If its frequency is 4.11 x 104 Hz
So if the frequency of a light wave is given, we can use this formula to calculate its wavelength:
wavelength = speed of light / frequency
Plugging in the values given in the question, we get:
wavelength = 3 x 10⁸ m/s / 4.11 x 10⁴ Hz
wavelength = 3 x 10⁸/ 4.11 x 10⁴
wavelength = 3 / 4.11 x 10⁸/10⁴
Performing the calculation, we find that the wavelength of the light wave is approximately 729.94 meters.
To learn more about the speed of light click here:
https://brainly.com/question/394103
#SPJ5
Whats the answer and how do i show work
The measure of <1 is 147 degree.
Given:
m∠2 = 12x - 15
m∠7 = 3x + 21
Since angles 2 and 7 are alternate Exterior angles, they are congruent.
So, 12x - 15 = 3x + 21
12x - 3x = 21 + 15
9x = 36
x = 4
So, <2 = 12x - 15= 48 - 15 = 33
Now, <1 + <2 = 180 (Linear Pair)
<1 + 33 = 180
<1 = 147 degree
Thus, the measure of <1 is 147 degree.
Learn more about Parallel line here:
https://brainly.com/question/16701300
#SPJ1
The price of an item has been reduced by 65% the original price was $95
What is the solution of log base of (3x-7) 25=2?
a. x=-2
b. x=2
c. x=3
d. x=4
Answer:
d. x=4
Step-by-step explanation:
So we have the following equation: \(log_{(3x-7)}25=2\)
Now to understand how we can rewrite this equation, let's go over the definition of a log: \(log_ba=x\implies b^x=a\)
So this value of "log base b of a" Is equal to the value that I have to raise the base b to, to get the result a
So when I have the equation: \(log_{(3x-7)}25=2\)
This is essentially saying, I have to raise (3x-7) the base, to the power of 2, to get the result of 25
So let's rewrite it using the definition of a log
\((3x-7)^2=25\)
Take the square root of both sides
\(3x-7=5\)
add 7 to both sides
\(3x=7+5\)
Now divide both sides by 3
\(x=\frac{7\pm5}{3}\)
Simplifying:
\(x=4\)
ahah help please thank you
Answer:
Tha answer is C.
Step-by-step explanation:
As you can see in there that -3 is a repeating number.
Please help right now??
11. A bottle of shampoo cost $7. You have $16 and a coupon for a
$5 discount at Walmart. How many bottles of shampoo can
you buy?
I
Answer:
3 bottles
Step-by-step explanation:
you equation is 7x-5=16
you add 5 to both sides which gets you 7x=21
then you divide 7 by both sides that gets you x=3
HELPP PLEASEEE!! SOLVE THIS FOR ME PLS.
a) The area of triangle is, 13.3 km²
b) The area of rectangle is, 57.4 cm²
c) The area of rectangle is, 57.33 km²
What is mean by Rectangle?A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.
a) The area of triangle is,
Area = 1/2 × Base × Height
Here, base = 7 km
Height = 3.8 km
Thus, The area of triangle is,
Area = 1/2 × Base × Height
Area = 1/2 × 7 × 3.8
Area = 13.3 km²
b) Area of rectangle is,
Area = Length × Width
Area = 8.2 × 7
Area = 57.4 cm²
c) Area of rectangle is,
Area = Length × Width
Area = 6.3 × 9.1
Area = 57.33 km²
Learn more about the rectangle visit:
https://brainly.com/question/2607596
#SPJ1
help me pls!! giving brainliest and 5 stars
Answer:
A reflection over the line y = x followed by a translation up 3 units
Step-by-step explanation:
Since this is a multiple choice question, let's test each answer out.
First scenario:
"A reflection over the y-axis followed by a translation right 3 units and down 4 units"
Reflect segment XY over the y-axis, we get segment XY between x = 2 and x = 6, on y = 5 line.Translate right 3 units, we get segment XY on y = 5 line, between x = 5 and x = 9.Translate down 4 units, we get segment XY on y = 1 line, between x = 5 and x = 9.Resulting segment does not match segment X'Y', this answer is incorrect
Second scenario:
"A reflection over the line y = x followed by a translation up 3 units"
Reflect segment XY over y = x line, we get segment XY, between y = -2 and y = -6, on x = 5 line.Translate up 3 units, we get segment XY on x = 5 line, between y = 1 and y = -3.Resulting segment matches segment X'Y', this is the correct answer.
integrate (4/x 6)dx from 4 to 8 (a) find the riemann sum for this integral using right endpoints and n
The Riemann sum with right endpoints and n subintervals is 4/n [4/(4+4/n)^6 + 4/(4+8/n)^6 + ... + 4/(8-4/n)^6 + 4/8^6]
To find the Riemann sum with right endpoints, we divide the interval [4,8] into n subintervals of equal width Δx = (8-4)/n = 4/n, and use the right endpoint of each subinterval as the sample point to evaluate the function.
The Riemann sum with n subintervals is:
Δx [f(4+Δx) + f(4+2Δx) + ... + f(8-Δx) + f(8)]
where f(x) = 4/x^6.
Substituting the values, we get:
Δx = 4/n
f(4+Δx) = f(4+4/n) = 4/(4+4/n)^6
f(4+2Δx) = f(4+8/n) = 4/(4+8/n)^6
...
f(8-Δx) = f(8-4/n) = 4/(8-4/n)^6
f(8) = 4/8^6
So, the Riemann sum with right endpoints and n subintervals is:
Δx [f(4+Δx) + f(4+2Δx) + ... + f(8-Δx) + f(8)]
= 4/n [4/(4+4/n)^6 + 4/(4+8/n)^6 + ... + 4/(8-4/n)^6 + 4/8^6]
To find a specific value of the Riemann sum, we need to know the value of n.
Learn more about subintervals here
https://brainly.com/question/10207724
#SPJ11
what is ""27.430"" in expanded form
The expanded form of the number 27.430 is 20 + 7 + 0.400 + 0.30.
What is an expanded form?A billing statement is a recurring statement that details every transaction made on your credit card account during the billing cycle, including purchases, payments, and other debits and credits. Every month or so, your credit card company will send you a billing statement.
Given that the number is 27.430. The expanded form of the number is written as:-
Expanded form:-
27.430 = 20 + 7 + 0.400 + 0.30.
When we add all the values of the expanded form we will get the previous value.
To know more about an expanded form follow
https://brainly.com/question/388860
#SPJ1
Steve bought 7 boxes of pencils. Each Box contained 9 pencils. He wants to give each of his 6
friends as many pencils as possible and keep the rest. Which statement is true?
Answer:
A
Step-by-step explanation:
7*9=63
63/6= 10 remainder 3
Therefore each friend gets 10 boxes of pencils and Steve gets the leftover 3 boxes of pencils
help I will mark brainliest for the person who answers them correct.
1. (bh)/2 or (4 x 3)/2 = 6
2. (8 x 12)/2 = 48
3. (11.25 x 15.6)/2 = 87.75
4. (9 x 10)/2 = 45
(PLEASE HELP) -3C - 6 = -5(c - 2)
Answer:
c = 8
Step-by-step explanation:
-3c - 6 = -5(c - 2)
-3c - 6 = -5c + 10
2c - 6 = 10
2c = 16
c = 8
The answer is:
⇨ c = 8Work/explanation:
The objective of this problem is to isolate x. So I focus on the right side:
\(\sf{-3c-6=-5(c-2)}\)
\(\sf{-3c-6=-5c+10}\)
Rearrange. All terms that contain c should be on the left.
\(\sf{-3c+5c-6=10}\)
\(\sf{2c-6=10}\)
All numbers should be on the right.
\(\sf{2c=10+6}\)
Simplify
\(\sf{2c=16}\)
Divide each side by 2.
\(\sf{c=8}\)
Graph the inequality on a separate sheet of paper. Then explain how you would determine if(-1,-4) is a solution by
looking at the graph.
Step-by-step explanation:
Looking at the graph, if you plot the point (-1,-4) you'll see that the point is on the area(red one, in the graph I attached) the graph covers, you can also put x=-1 and y=-1 to check if it's true or not
5 x 10 to the 6th power is how many times larger than 5 x 10 to the 4th power. PLEASE RESPOND FAST
Answer:
5 x 10 to the 6th power is 5,000,000
5 x 10 to the 4th power is 50,000
5,000,000 / 50,000 = 100
it is 100 times larger
Step-by-step explanation:
3:27 PM Mon Mar 13
Acellus
Law of Cosines
26
Solve for C.
50
29
C = [?]°
Round your final answer
to the nearest tenth.
Law of Cosines: c²= a² + b² - 2ab-cosC
Measure of Angle C
Enter
3
ဇာ
Help Resources
Consequently, C = 17.2° as by the result of the Rule of Cosines , rounded to the nearest tenth.
what is angle ?A geometric figure known as an angle is created by two lines that share an endpoint and are referred to as the angle's sides and vertex, respectively. The quantity of rotation required to align one side with the other side around the vertex is the angle's unit of measurement. Typically, angles are expressed as degrees or radians, where a complete rotation equals 360 degrees or 2 radians. Angles are frequently used to define the position and orientation of lines and shapes in geometry, trigonometry, and other branches of mathematics.
given
As a result of the Rule of Cosines, we have:
A2 Plus B2 - 2ab cos = c2 (C)
Adding the specified values:
c² = 26² + 29² - 2(26)(29) cos(50°)
c² = 676 + 841 - 1508 cos(50°)
c² = 1517 - 1508 cos(50°)
c ≈ √(1517 - 1508 cos(50°))
c ≈ 17.2° (rounded to the closest tenth)
Consequently, C = 17.2° as by the result of the Rule of Cosines , rounded to the nearest tenth.
To know more about angles visit:
https://brainly.com/question/14569348
#SPJ1
Answer:
C= 23.22
This is the answer this question.