Answer: 25
Step-by-step explanation:
From the question, we are told that a producer of electronic book readers is performing a quality check to make sure that the reader's backlight is working correctly. Then, the plant manager tests 2,000 readers on Monday and finds that 8 have defective backlights. The fraction 1/x is the experimental probability of a book reader having a defective backlight. What is the value of x?
Number of tested readers= 2000
Defective backlight = 8
Probability of having a defective backlight will be the number of defective backlight divided by the number of readers tested. This will be:
= 8/200
We reduce the nice fraction to its lowest term.
8/200 = 1/25
Therefore x will be 25
Answer:
250
Step-by-step explanation:
two thousand divided by eight = 250
2000/8=250
in 1927 charles lindberg had his first solo flight across the atlantic ocean. he flew 3610 miles in 33.5 hours. if he flew about the same number of miles each hour, how many miles did he fly each hour
In 1927 charles lindberg had his first solo flight across the atlantic ocean, then the he fly each hour 107.76 miles/hour.
Based on the given conditions,
In 1927 charles lindberg had his first solo flight across the atlantic ocean.
He flew 3610 miles in 33.5 hours
So,
We can write,
To find out the unit rate, divide the total distance by the total time
Then,
33.5 hours = 3610 miles
1 hour = x miles
Cross Multiply
33.5 hours × x miles = 3610 miles × 1 hour
x miles = 3610 miles × 1 hour/33.5 hours
x miles = 107.76119403 miles
Approximately = 107.76 miles per hour
Therefore,
In 1927 charles lindberg had his first solo flight across the atlantic ocean, then the he fly each hour 107.76 miles/hour.
To learn more about information visit Miles/hour problems :
brainly.com/question/13637888
#SPJ4
A line contains points (1, 3) and (5,0). What is the slope of the line?
Answer:
B= -3/4
Step-by-step explanation:
there are two points given substitute them in the formula of the slope
Find the slope of a line that passes through each pair of points.
(0, 1) (2, 7) 2) (4, 5) (1, 1) 3) (1, -2) (4, 7)
Step-by-step explanation:
the slope of the line is expressed as the ratio
y coordinate change / x coordinate change
when going from one point to the other.
(0, 1) (2, 7)
x changes by +2 (from 0 to 2)
y changes by +6 (from 1 to 7)
the slope is +6/+2 = 6/2 = 3
(4, 5) (1, 1)
x changes by -3 (from 4 to 1)
y changes by -4 (from 5 to 1)
the slope is -4/-3 = 4/3
(1, -2) (4, 7)
x changes by +3 (from 1 to 4)
y changes by +9 (from -2 to 7)
the slope is +3/+9 = 3/9 = 1/3
A clerk in a bank engaged in counting one rupee currency note. For the first 10 minutes quickly at
a speed of Rs.150 per minute then he slows down and begins to count at a speed of Rs. 2 less
etery minute than previous minute. Find what time will he take to count a sum of Rs. 4500.
Answer:
The time it would take the clerk to count a sum of Rs. 4,500 is 34 minutes
Step-by-step explanation:
The given parameters are;
The rate at which the clerk in the bank counted one rupee currency notes for the first 10 minutes = Rs. 150/minute
After the first 10 minutes, the rate at which the clerk counted = Rs. 2 less than the previous minute
The time it will take the clerk to count Rs. 4,500 is given as follows;
The number of one rupee currency notes the clerk counts in the first 10 minutes = 10 × Rs. 150 = Rs. 1,500
The amount in one rupee currency notes the clerk counted at a decreasing rate of Rs. 2 less every minute = Rs. 4,500 - Rs. 1,500 = Rs. 3,000
From the 11th minute the number of rupees the clerk counts = Rs. 150 - Rs. 2 = Rs. 148
We have an arithmetic progression with the first term, a = 148, and the common difference, d = -2
The sum of n terms of an AP, \(S_n = \dfrac{n}{2} \times \left [ 2 \cdot a + (n - 1)\cdot d\right ]\)
Which gives;
\(3000 = \dfrac{t}{2} \times \left [ 2 \times 148 + (t - 1)\times (-2)\right ] = 148 \cdot t - t^2 + t\)
3000 = 149·t - t²
Which gives;
t² - 149·t + 3,000 = 0
(t - 24) × (t - 125) = 0, therefore, t = 24 minutes or t = 125 minutes
The time it would take the clerk to count a sum of Rs. 4,500 = 10 + 24 = 34 minutes.
How many 3-coin combinations exist if we can choose from pennies, nickels, dimes, and quarters?
20
12
4
4!
The total combination of 3-coin is 4 if there are a total number of coins is 4 option third is correct.
What is permutation and combination?A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.
We have:
Number of coin need to select = 3
Total number of coins = 4 (pennies, nickels, dimes, and quarters)
We can apply the combination formula to find the number of combination:
Total number of combination = C(4, 3)
\(= \dfrac{4!}{(4-3)!3!}\)
= 4
Thus, the total combination of 3-coin is 4 if there are a total number of coins is 4 option third is correct.
Learn more about permutation and combination here:
https://brainly.com/question/2295036
#SPJ1
8/6 or 0.75
Give your answer as a fraction in its simplest form.
Answer:
4/3 and 3/4
Step-by-step explanation:
Find 8 to 6 smallest ratio
if both side can be divided by 2 then divide by 2
Answer:
4/3 or 3/4
Step-by-step explanation:
4/3 or 3/4
0.75 = 75/100
awscalculate mse for each region. is the variability·around the fitted regression line approxi- mately the same for the four regions? discuss.
In order to calculate the Mean Squared Error (MSE) for each region, you will need to have a dataset with values for each region.
Once you have this dataset, you can calculate the MSE using the following formula:
MSE = 1/n x ∑(yi - ŷi)²
where n is the number of data points in the region, yi is the actual value for the ith data point, and ŷi is the predicted value for the ith data point. Once you have calculated the MSE for each region, you can compare the values to determine if the variability around the fitted regression line is approximately the same for each region.
If the MSE values are similar for each region, then the variability around the fitted regression line is approximately the same. If the MSE values are different for each region, then the variability around the fitted regression line is not the same for each region.
You can learn more about Mean Squared Error at: brainly.com/question/29662026
#SPJ11
x/7 ≥ − 6=============
The range of value of x in the inequality x/7 ≥ -6 is x≥ -42
What is inequality?Inequality, is a statement of an order relationship. Some terms used in inequality are ,greater than, greater than or equal to, less than, or less than or equal to. They are used between two numbers or algebraic expressions.
greater than has the sign >
greater than or equal to has the sign ≥
less than has the sign < and
less than or equal to has ≤
solving the range of value of x in the inequality x/7 ≥- 6
multiply both sides by 7
x ≥ -42
Therefore the range of value of x is x ≥ -42
learn more about inequality from
https://brainly.com/question/24372553
#SPJ1
Suppose that the height of the slide is 2 feet, when x = 20. what is t brainlyhe average rate of change over the entire slide?
The average rate of change over the entire slide is 0.01 per unit.
A slope is also known as the gradient of a line is a number that helps to know both the direction and the steepness of the line.
The slope of a line is defined as the change in y coordinate with respect to the change in x coordinate of that line. The net change in y coordinate is Δy, while the net change in the x coordinate is Δx. So the change in y coordinate with respect to the change in x coordinate can be written as,
Introduction to Slope of a Line | The slope of line is the measure of steepness or the direction of line the coordinate plane.
m = Δy/Δx
where, m is the slope
Note that tan θ = Δy/Δx
We also refer this tan θ to be the slope of the line
Given,
the height of the slide = 2 feet
the value of x is 20 units
The average rate of change is the slope of the line
Therefore, the rate of change over the entire slide will be,
Rate of change = 2/20 = 0.1 feet per unit
Hence, the rate of change is 0.1 feet per unit.
To know more about "Slope of the line"
Refer this link:
https://brainly.com/question/14511992
#SPJ4
One week a computer store sold a total of 36 computers and external hard drives. The revenue from these sales was 29,820. If computers sold for 1180 and hard drives for 125 per unit, how many of each were sold?
Given:
One week a computer store sold a total of 36 computers and external hard drives.
Let the number of computers = x
And the number of the external hard drives = y
so, we can write the following equation:
\(x+y=36\rightarrow(1)\)The revenue from these sales was 29,820. If computers sold for 1180 and hard drives for 125 per unit
So, we can write the following equation:
\(1180x+125y=29820\rightarrow(2)\)We will solve the equations (1) and (2) to find (x) and (y):
from equation (1):
\(y=36-x\operatorname{\rightarrow}(3)\)Substitute (y) from equation (3) into equation (2) and then solve for (x):
\(\begin{gathered} 1180x+125(36-x)=29820 \\ 1180x+125*36-125x=29820 \\ 1180x-125x=29820-125*36 \\ 1055x=25320 \\ \\ x=\frac{25320}{1055}=24 \end{gathered}\)Substitute (x) into equation (3) to find (y):
\(y=36-24=12\)So, the answer will be:
The number of computers sold = 24
The number of hard drives sold = 12
PLs find x answer will get brainiest
Answer:
x = 52
Step-by-step explanation:
the right angle means 90 degrees so add 90 and 34 to get 124 then when u subtract from 180 degree (the degrees of a triangle) you get 54 degrees. that means that p has to be 124 degrees. 124 subtracted by 72 is 52. Therefore x is 52.
Name Sand on the celables Date Ka Software - Infinite Algebra 2 Factoring By Grouping Factor each completely. 2) 2p² +50² +6p+15 2p?topt sp²tis 2p/p2 +3 + costo (123) lapts) 1) 12a - gå +4a-3
Can someone help me with this??
Can someone help me pls
4x+y<2
y>-2
As given 4x+y<2 but y>-2, so the only linear inequality are 4x+(-1)<2, 4x+(0)<2 and 4x+(1)<2, graph these three and we have it.
What is linear inequality?Linear functions are used in mathematical linear inequalities. Because both sides in these functions are not equal, an equal sign cannot be used to denote them. In general, an inequality can be both an algebraic inequality and a generic inequality.
The definition of a linear inequality includes expressions with unequal sides. In this case, the equal sign is replaced by the symbols greater than, less than, greater than or equal to, and less than or equal to. Inequality can take many different forms. These three types of inequality are rational, absolute value, and polynomial.
The graph for the given linear inequality is given below↓↓↓
Every point in the dark purple zone represents
4x + y < 2
y > -2
Learn more about linear inequality
https://brainly.com/question/11897796
#SPJ4
Find the slope!!
and quick
Answer:
they are doing a multiples of -8
Answer:
The answer is - 8
Step-by-step explanation:
\(slope = \frac{y2 - y1}{x2 - x1} \\ by \: using \: any \: two \: point \: \\ then \: slope = \frac{ - 16 - ( - 8)}{2 - 1} = \frac{ - 8}{1} \\ slope = - 8\)
report a stolen credit card to EFTA or PCI standards?
The correct matching of EFTA and PCI standards are:
A) EFTA
Report a debit card as stolen.Put a stop payment on automatic withdrawals.(B) PCI
Protect credit card information.Uphold a secure network.What is Electronic Fund Transfer Act (EFTA)?The purpose of the Electronic Fund Transfer Act (EFTA), a law passed by Congress, is to safeguard consumer financial transactions made using electronic tools like debit cards and automated teller machines (ATMs).The purpose of the Payment Card Industry Data Security Standard (PCI DSS) is to guarantee that financial institutions, such as banks, have a robust and secure network architecture to safeguard clients' personal information.So, match the following as follows:
(A) EFTA
Report a debit card as stolen.Put a stop payment on automatic withdrawals.(B) PCI
Protect credit card information.Uphold a secure network.Therefore, the correct matching of EFTA and PCI standards are:
A) EFTA
Report a debit card as stolen.Put a stop payment on automatic withdrawals.(B) PCI
Protect credit card information.Uphold a secure network.Know more about Electronic Fund Transfer Act (EFTA) here:
https://brainly.com/question/3358730
#SPJ1
Complete question:
Match the correct EFTA and PCI Standards.
report a stolen debit card
protect credit card data
place a stop payment on
recurring payments
maintain a secure network
Ten students participated in the 4 mile relay. Each student ran a fraction of the 4 miles. Chooses which line plot could represent the data of the runners. Explain your reasoning.
Answer:
B
Step-by-step explanation:
We can determine the total miles run by the 10 students by adding all the miles run by each individual student:
A
1 student * 1/12 miles = 1/12 miles
2 students * 1/8 miles = 2/8 miles = 1/4 miles
1 student * 1/6 miles = 1/6 miles
2 students * 1/4 miles = 2/4 miles = 1/2 miles
1 student * 1/3 miles = 1/3 miles
3 students * 1/2 miles = 3/2 miles
We add all these fractions to obtain 17/6, which is approximately 2.83, which is not as the question describes.
B
2 students * 1/6 miles = 1/3 miles
2 students * 1/4 miles = 1/2 miles
2 students * 1/3 miles = 2/3 miles
3 students * 1/2 miles = 3/2 miles
1 student * 1 mile = 1 mile
We add all these fractions to obtain 4 miles, which is as the question describes.
Allthree please. thanksFind the derivative of the function. h(x) = 2x2 – 7x + 91% h'(x) x Need Help? Read It 7. [-17 Points] DETAILS Find the derivative of the function. f(x) = (8x? - x) In(X) f'(X) = Need Help? Read It S
f'(x) = (16x - 1)ln(x) + 7x
For h(x) = 2x^2 - 7x + 9, we can use the power rule and the constant multiple rule to find the derivative:
h'(x) = 4x - 7
For f(x) = (8x^2 - x)ln(x), we need to use the product rule and the chain rule to find the derivative:
f'(x) = (16x - 1)ln(x) + (8x^2 - x) * 1/x
Simplifying the second term, we get:
f'(x) = (16x - 1)ln(x) + 7x
To learn more about product rule, refer below:
https://brainly.com/question/29198114
#SPJ11
If the company had $4000 worth of office supplies at the beginning of the period. What is the entry required if we find that at the end of the period we have $3900 of supplies remaining.
The entry required to account for the change in office supplies would depend on the accounting method used. Assuming the company follows the periodic inventory system, where office supplies are expensed as they are used, the entry would be as follows:
At the beginning of the period:
Debit: Office Supplies Expense - $4,000
Credit: Office Supplies - $4,000
At the end of the period:
Debit: Office Supplies - $3,900
Credit: Office Supplies Expense - $3,900
Explanation:
1. At the beginning of the period, the company records the office supplies as an asset (Office Supplies) and recognizes an expense (Office Supplies Expense) for the same amount. This reduces the value of the asset and reflects the cost of supplies used during the period.
2. At the end of the period, when it is determined that $3,900 worth of supplies remains, the company adjusts the office supplies account by reducing it by the remaining amount. This adjustment is necessary to reflect the correct value of supplies on hand at the end of the period.
The entry ensures that the net effect of the transactions is an expense of $100 ($4,000 - $3,900), which represents the cost of supplies consumed during the period.
If (x > 5) y = 1; else if (x < 5) { if (x < 3) y = 2; else y = 3; } else y = 4; what is the value of y if x = 4?
The value of y when x = 4 is 3.
In this given condition statement, if x is greater than 5, the value of y is 1. If x is less than 5, there is an additional condition.
If x is less than 3, the value of y is 2.
Otherwise, if x is not less than 3, the value of y is 3. Lastly, if x is equal to 5, the value of y is 4.
In the case of x = 4, x is less than 5 but not less than 3.
Therefore, the condition statement within the else condition is satisfied, resulting in the value of y being 3.
This means that when x is equal to 4, the value of y equals 3 as per the given conditions.
Learn more about values from the given link:
https://brainly.com/question/30145972
#SPJ11
Find the first three nonzero terms of the Maclaurin series for the function and the values of x for which the series converges absolutely. f(x)=(3cosx)ln(1+x) What are the first three nonzero terms of the Maclaurin series for f(x) ? (
The Maclaurin series for f(x) converges absolutely for x within the interval (-2/3, 2/3).
To find the Maclaurin series for the function f(x) = (3cos(x))ln(1+x), we can use the standard formulas for the Maclaurin series expansion of elementary functions.
First, let's find the derivatives of f(x) up to the third order:
f(x) = (3cos(x))ln(1+x)
f'(x) = -3sin(x)ln(1+x) + (3cos(x))/(1+x)
f''(x) = -3cos(x)ln(1+x) - (6sin(x))/(1+x) + (3sin(x))/(1+x)² - (3cos(x))/(1+x)²
f'''(x) = 3sin(x)ln(1+x) - (9cos(x))/(1+x) + (18sin(x))/(1+x)² - (12sin(x))/(1+x)³ + (12cos(x))/(1+x)² - (3cos(x))/(1+x)³
Next, we evaluate these derivatives at x = 0 to find the coefficients of the Maclaurin series:
f(0) = (3cos(0))ln(1+0) = 0
f'(0) = -3sin(0)ln(1+0) + (3cos(0))/(1+0) = 3
f''(0) = -3cos(0)ln(1+0) - (6sin(0))/(1+0) + (3sin(0))/(1+0)² - (3cos(0))/(1+0)² = -3
f'''(0) = 3sin(0)ln(1+0) - (9cos(0))/(1+0) + (18sin(0))/(1+0)² - (12sin(0))/(1+0)³ + (12cos(0))/(1+0)² - (3cos(0))/(1+0)³ = -9
Now we can write the first three nonzero terms of the Maclaurin series:
f(x) = f(0) + f'(0)x + (f''(0)/2!)x² + (f'''(0)/3!)x³ + ...
f(x) = 0 + 3x - (3/2)x² - (9/6)x³ + ...
Simplifying, we have:
f(x) = 3x - (3/2)x² - (3/2)x³ + ...
To determine the values of x for which the series converges absolutely, we need to find the interval of convergence. In this case, we can use the ratio test:
Let aₙ be the nth term of the series.
|r| = lim(n->infinity) |a_(n+1)/aₙ|
= lim(n->infinity) |(3/2)(xⁿ+1)/(xⁿ)|
= lim(n->infinity) |(3/2)x|
For the series to converge absolutely, we need |r| < 1:
|(3/2)x| < 1
|x| < 2/3
To know more about Maclaurin series:
https://brainly.com/question/31745715
#SPJ4
Mental Math Determine whether each statement is always, sometimes, or never true.An absolute value function of the form f(x) = c|x| is symmetric about the y-axis.
The statement that "an absolute value function of the form f(x) = c|x| is symmetric about the y-axis" is always true.
How to determine whether each statement is always, sometimes, or never true?The function is given as
f(x) = c|x|
The parent absolute value function is represented f(x) = |x|
Also, the parent absolute value function is symmetric about the y-axis.
This is also true for all functions that take the form f(x) = c|x| where c does not equal 0
Hence, the statement that "an absolute value function of the form f(x) = c|x| is symmetric about the y-axis" is always true
Read more about absolute value function at
https://brainly.com/question/10538556
#SPJ1
Katie's car averages 32 miles per hour. She has marked her distance traveled after 12, 13, and 14 hours. List the elements in the range of the function that would be used to determine how far Katie has traveled at each mark. Separate each elements from least to element with a comma and write the
greatest.
Pls hurry
To determine the distance traveled by Katie at different marks, we can use the formula Distance = Rate × Time.
Explanation:To determine how far Katie has traveled at each mark, we can use the formula:
Distance = Rate × Time
So, the elements in the range of the function that would be used to determine how far Katie has traveled at each mark are 384 miles, 416 miles, and 448 miles.
Learn more about Distance traveled by Katie here:
https://brainly.com/question/31629130
#SPJ2
3 integers are in an arithmetic progression. their product is prime. what is the sum of their squares?
The sum of their squares is (x)^2 + (x-d)^2 + (x-2d)^2.
According to the statement
we have given that the 3 integers are in an arithmetic progression and their product is prime.
And we have to find the sum of their squares.
So, let the three integers which is A, B, C.
And according to the arithmetic progression the
A = x and B = x-d, C = x-2d. here d is the common difference and x is a 1st term.
So, there product is prime
then
(x) (x-d) (x-2d) = c -(1)
And
their sum of square is
(x)^2 + (x-d)^2 + (x-2d)^2 - (2)
So, The sum of their squares is (x)^2 + (x-d)^2 + (x-2d)^2.
Learn more about Arithmetic Progression here
https://brainly.com/question/6561461
#SPJ4
part b : how much money will be in biancas account after 5 years ?
MYYYYY nUUUUUUUUUUUUUUUUUUT
The first picture is the one we need to answer. The second one is a shown picture of the different answers we can choose. I need some help on it.
The equation of a linear function is given by the following general form:
y = mx + b
Where m is the slope of the line and is given by the following formula:
\(m=\frac{y2-y1}{x2-x1}\)Where (x1, y1) and (x2, y2) are two points of the function. In this case, we can take points (3, 0) and (4, 6) from the table, then we get:
\(m=\frac{6-0}{4-3}=\frac{6}{1}=6\)With m = 6 we can rewrite the equation like this:
y = 6x + b
By replacing another point, like (5, 12), we get:
12 = 6(5) + b
12 = 30 + b
12 - 30 = 30 - 30 + b
-18 = b
b = -18
Then, the equation of the linear function can be written like this:
h(x) = 6x - 18
What number is plotted on the number line?
Answer:
The number 0.7 is plotted on the number line.
Answer:
0.7.Step-by-step explanation:
Count up 0 to 1.
Stop at the point.
If you stop at the point, you should know what the point is.
The point is graphed at 0.7.
HELPPP PLEASEE!!!
There are 90 girls and 60 boys in the sixth grade at a middle school. Of these students, 9 girls and 3 boys write left-handed. What percentage of the sixth graders at this middle school write left-handed?
A. 10%
B. 8%
C. 5%
D. 15%
what expression is equal to 5p
Answer:
5p is another way to saying add together 5 p's
Answer:
p + 5 is the answer
Step-by-step explanation:
A plate has a diameter of 14 inches. What is the best approximation for the circumference of the plate? Use 3. 14 to approximate pi. 22. 0 in. 44. 0 in. 87. 9 in. 153. 9 in.
Circumference = pi x diameter
14 x 3.14 = 43.96 = 44.0 in.
Answer: 44.0 in.