Answers
Answer:
Hi Joanna, what do you find difficult about this problem? Just wondering
Step-by-step explanation:
? = 2
the grey box is 7
ask me if you want to know how I got those :)
Related Questions
N
m
4
5
4
U
-
3-
Cu v
-5-4-3-2-1
2
-2
1 w
60
r
2345x
What is the domain of the function on the graph?
O all real numbers
O all real numbers greater than or equal to-2
O all real numbers greater than or equal to-5
O all real numbers greater than or equal to 0
Help please
Answers
Answer:
Step-by-step explanation:
Question
N
m
4
5
4
U
-
3-
Cu v
-5-4-3-2-1
2
-2
1 w
60
r
2345x
What is the domain of the function on the graph?
O all real numbers
O all real numbers greater than or equal to-2
O all real numbers greater than or equal to-5
O all real numbers greater than or equal to 0
Help please
absolute value evaluate problem
|-4| =?
SHOW WORK:
Answers
The expression |-4| has a value of 4 when evaluated
How to evaluate the absolute expressionFrom the question, we have the following parameters that can be used in our computation:
|-4|
The above expression is an absolute expression
So, the solution is the positive value of the expression in bracket
Evaluate the expressions in the brackets
So, we have the following representation
|-4| = 4
Hence, the expression has a value of 4
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A fraction is said to be in its lowest terms if the numerator and denominator have no common factor ?
True or False
Answers
Answer:
true
Step-by-step explanation:
Please help meee!!!!!!!
Answers
Answer:
1) two spaces are being added per figure. 2)203
Step-by-step explanation:
Answer:
1. Two tiles add per figure, one on each side.
2. The hundredth figure would have 201, because if you want to find the answer to any figure you multiply by two and add one
Step-by-step explanation:
10, 5,\2Find the 6th term.
Answers
It should be noted that the 6th term in the sequence 10, 5, 5/2 will be 5/16.
How to illustrate the information?It should be noted that the numbers given are illustrated as: 10, 5, 5/2.
It should be noted that this is a geometric sequence as it has a common ratio. On this case, the common ratio will be:
= 2nd term / 1st term
= 5/10
= 1/2
Therefore, the 6th term will be:
= ar^n-1
a = 10
n = 6
r = 1/2
= 10 × 1/2^(6 - 1)
= 10 × 1/32
= 5/16
Therefore, it should be noted that the 6th term in the sequence 10, 5, 5/2 will be 5/16.
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All employees of a company work less than 40 hours. Which inequality describes the situation?
Answers
The inequality is represented by x<40
What is inequality?An inequality compares two values and indicates whether one is lower, higher, or just not equal to the other.
A B declares that a B is not equal.
When a and b are equal, an is smaller than b.
If a > b, then an is bigger than b.
The phrase "a b" denotes that an is less than or equal to b.
When a and b are equal, it is said that an exceeds b.
Let the employees of the company be denoted by x.
So, as given the employees work less than 40 hours.
Thus the inequality can be represented as x< 40.
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Based on the graph, between which two values of x is a zero of g located?
Answers
Answer:
Between 4 and 5
Step-by-step explanation:
Given
See attachment for graph
Required
Between which points is g(x) = 0
From the attachment, we can see that the graph crosses the x-axis at 4... and -1...
This means that
g(x) = 0 between 4 and 5
g(x) = 0 between -1 and -2
Going by the available options,
g(x) = 0 between 4 and 5
A store owner discounted some wheelbarrows from $70 to $49. What is the discount, as a percentage? Write your answer using a percent sign (%).
Answers
the discount is 30%, which we write as 30%.
What is the percentage?
A percentage that represents a tenth of a quantity. One percent, denoted by the symbol 1%, is equal to one-hundredth of something; hence, 100 percent denotes the full thing, and 200 percent designates twice the amount specified. A portion per hundred is what the percentage denotes. The percentage refers to one in a hundred. The % sign is used to denote it.
To find the discount as a percentage, we can use the formula:
discount percentage = (discount amount / original price) x 100%
In this case, the original price is $70 and the discounted price is $49. The discount amount is the difference between these two prices, which is:
discount amount = $70 - $49 = $21
Substituting these values into the formula, we get:
discount percentage = ($21 / $70) x 100%
discount percentage = 0.3 x 100%
discount percentage = 30%
Therefore, the discount is 30%, which we write as 30%.
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Plz help if correct ill give brailiest also the first answer was x<1
Answers
Answer:
For x<1, answer would be A.
Step-by-step explanation:
Since the less than sign doesn't have a line under it "making it less than or equal to" the dot on the graph is not shaded, and if you simply read the inequality, x is less than 1, so it goes in the direction less than 1.
John averages 58 words per minute on a typing test with a standard deviation of 11 words per minute Suppose John's words per minute on a typing test are normally distributed. Let X = the number of words per minute on a typing test. Then X-N(58,11) If necessary, round to three decimal places. Provide your answer below: Suppose John types 72 words per minute in a typing test on Sunday. The 2-score when x = 72 is the mean is This 2-score tells you that x = 72 is standard deviations to the right of the mean.
Answers
Z-score is 1.27 for x = 72.
According to this z-score, x = 72 is 1.27 standard deviations away from the mean.
What is Standard Deviation?
The term "standard deviation" refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.
Given,
On a typing test, John averages 58 words per minute with a standard deviation of 11 words per minute
µ = 58 words per minute.
σ = 11 per minute in words
On a typing test, X represents the maximum words per minute.
On a typing test, John's words per minute are distributed normally.
As X- N, the normal distribution can be described (µ ,σ)
This indicates that X is normally distributed, with X - N for the mean and SD (58, 11)
Consider John taking a typing test on Sunday and typing 72 words per minute, i.e. x = 72
For John's score, we must determine the Z-score, which may be done as
Z = X-µ/σ
Put known values in the Z-score calculation.
Z = 72 - 58/11
Z-score, thus, is 1.27 when x = 72.
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What is the intermediate step in the form
(x+a)^2=b as a result of completing the square for the following question
Answers
The intermediate step in completing the square is\($x^2 + 2ax + (a^2) = b - a^2 + (a^2)$\)
To complete the square for the equation \($(x+a)^2=b$\), we can follow these steps:
1. Expand the left side of the equation: \($(x+a)^2 = (x+a)(x+a) = x^2 + 2ax + a^2$\).
2. Rewrite the equation by isolating the squared term and the linear term: \($x^2 + 2ax = b - a^2$\).
3. To complete the square, take half of the coefficient of the linear term, square it, and add it to both sides of the equation:
\($x^2 + 2ax + (a^2) = b - a^2 + (a^2)$\).
4. Simplify the right side of the equation: \($x^2 + 2ax + (a^2) = b$\).
This step can be represented as: \(\[x^2 + 2ax + (a^2) = b - a^2 + (a^2)\]\)
This intermediate step helps us rewrite the equation in a form that allows us to factor it into a perfect square.
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3x-6y-2z=-17
−6x+4y+5z=13
−3x−4y−3z=22
Answers
Answer:
1) x = -17 +6y + 2z/3
2) x= -13 - 4y - 5z/6
3) x= -22 +4y + 3z/3
Step-by-step explanation:
1) 3x-6y-2z=-17
3x- 6y -2z- (-6y -2z)= - 17 - ( 6y -2z )
3x=-17+6y+2z
3x/3= -17/3 +6y/3 + 2z/3
x = -17 +6y + 2z/3
2) −6x+4y+5z=13
-6x+4y+5z- ( 4y + 5z )= 13 - ( 4y + 5z )
-6x=13-4y-5z
-6x/-6= 13/-6 - 4y/-6 - 5z/-6
x= -13 - 4y - 5z/6
3) −3x−4y−3z=22
-3x=22+4y+3z
-3x/-3 = 22/-3 + 4y/-3 +3z/-3
x= -22 +4y + 3z/3
-Write the perimeter and area as an algebraic expression * Dyuda de Cools Add-ons The latest eEnglishBUUR- SpanishWrite the perimeter and area as an algebraic expression1) Write and simplify the perimeter of a square whose side is 4x - 2 inches.2) Write and simplify an algebraic expression for the area of a rectangle whose width is 6 feet and whose length is 3x + 1. Then, find the area if x = 2.5.3) The area of a rectangle is 8x - 12. The width is 4 feet. Find the length4) The perimeter of a rectangle is 4x + 14. The length is x + 5. Find the width.
Answers
Convert 6 feet to meters.
Conversion table:
1 meter = 3.281 feet
Answers
Answer:
6 feet = 1.8288 meters
Step-by-step explanation:
Hope this helps and have a phenominal day!
An indoor track is made up of a rectangular region with two semi-circles at the ends. The distance around the track is 400 meters. What dimensions for the rectangular region maximize the area of the rectangular region?
Answers
Answer:
width of rectangle = 2R = (200/π) = 400/π meters
length of rectangle = 400 - π(200/π) = 400 - 200 = 200 meters
Step-by-step explanation:
The distance around the track (400 m) has two parts: one is the circumference of the circle and the other is twice the length of the rectangle.
Let L represent the length of the rectangle, and R the radius of one of the circular ends. Then the length of the track (the distance around it) is:
Total = circumference of the circle + twice the length of the rectangle, or
= 2πR + 2L = 400 (meters)
This equation is a 'constraint.' It simplifies to πR + L = 400. This equation can be solved for R if we wish to find L first, or for L if we wish to find R first. Solving for L, we get L = 400 - πR.
We wish to maximize the area of the rectangular region. That area is represented by A = L·W, which is equivalent here to A = L·2R = 2RL. We are to maximize this area by finding the correct R and L values.
We have already solved the constraint equation for L: L = 400 - πR. We can substitute this 400 - πR for L in
the area formula given above: A = L·2R = 2RL = 2R)(400 - πR). This product has the form of a quadratic: A = 800R - 2πR². Because the coefficient of R² is negative, the graph of this parabola opens down. We need to find the vertex of this parabola to obtain the value of R that maximizes the area of the rectangle:
-b ± √(b² - 4ac)
Using the quadratic formula, we get R = ------------------------
2a
-800 ± √(6400 - 4(0)) -1600
or, in this particular case, R = ------------------------------------- = ---------------
2(-2π)
-800
or R = ----------- = 200/π
-4π
and so L = 400 - πR (see work done above)
These are the dimensions that result in max area of the rectangle:
width of rectangle = 2R = (200/π) = 400/π meters
length of rectangle = 400 - π(200/π) = 400 - 200 = 200 meters
HELP How can you test to see if a diagram made using digital tools is a construction or just a drawing based on estimation? O Digital tools cannot be used to make a construction. Construction tools are limited to only straightedge and compass. O Look to see just how accurate the diagram appears. If needed, measure the screen using a ruler and protractor. O Drag a free point to see if the construction changes. Restart your computer and see if the diagram is found in the same location.
Answers
One can be able to test to see if a diagram made using digital tools is a construction or just a drawing based on estimation by:
Drag a free point to see if the construction changes. Restart your computer and see if the diagram is found in the same location.What is digital construction technology?Digital Construction is known to be a term that connote the act of using digital technologies to be able to make construction to be more better and with higher quality.
Note that a lot of the new technologies have been seen to have proven themselves and gives a lot of opportunities for the construction,
In the use of the digital tools, one can Construct a line or a line segment and then uses the move tool to drag some points around, and then watch to see what happens.
Therefore, One can be able to test to see if a diagram made using digital tools is a construction or just a drawing based on estimation by:
Drag a free point to see if the construction changes. Restart your computer and see if the diagram is found in the same location.Learn more about construction tools from
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Type 3 values for x that make this statement true, “x is less than or equal to 0”
Type 3 values for y that make this statement true, “ y is greater than or equal to -2”
Type 3 values for z that make this statement true, “z is less than or equal to 4”
Answers
Answer:
1.) x= -1,-2,-3
2.) y= -2,-1,0
3.) z= 4, 3, 2
Step-by-step explanation:
1.) The number being negative makes them less than zero
2.) The numbers are equal to -2 or greater, since with negative numbers the symbol for the letter may seem like it is decreasing, but that would only be the case if it was positive, as a negative, it works backwards.
3.) The numbers are less than or equal to 4
labor-hours and its standard cost card per unit is as follows:
Direct material: $ pounds at $11.00 per pound
Direct labor: 3 hours at $12 per hour
Variable overhead: 3 hours at $7 per hour
Total standard variable cost per unit
The company also established the following cost formulas for its selling expenses:
sales salaries and commissions
shipping expenses
Fixed Cost per
Month
$ 280,000
$ 260,000
$ 55.00
36.00
$112.00
Variable
Cost per
Unit Sold
$ 20.00
$ 11.00
The planning budget for March was based on producing and selling 21,000 units. However, during March the company
actually produced and sold 26.600 units and incurred the following costs:
a Purchased 154.000 pounds of raw materials at a cost of $9.50 per pound. All of this material was used in production.
b. Direct laborers worked 63,000 hours at a rate of $13.00 per hour
e Total variable manufacturing overhead for the month was $510,930
d Total advertising sales salaries and commissions, and shipping expenses were $286,000, $495,000, and $195,000,
respectively
6 What direct labor cost would be included in the company's flexible budget for March?
Answers
The direct labor cost included in the Preble Company's flexible budget for March is $819,000.
How to compute Preble Company's direct labor cost?To find the direct labor cost included in the company's flexible budget for March, we shall estimate the actual direct labor cost incurred during the period.
Given:
Actual production and sales =n26,600 units
Actual direct labor rate = $13.00 per hour
Actual direct labor hours worked = 63,000 hours
Direct labor cost = Actual direct labor rate × Actual direct labor hours worked
Direct labor cost = $13.00/hour × 63,000 hours
Direct labor cost = $819,000
Hence, the direct labor cost included in the company's flexible budget for March would be $819,000.
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five men build a wall in 10 days how long will it take 10 men
Answers
Answer:
5 Days ....thats easy....
Hope this answer is correct ..
Have a nice day ahead
Answer:
20 days
5 x 2 = 10
10 x 2 = 20
GIVING BRAINLIST PLEASE HELP!!!
Answers
The probability that a randomly selected point within the circle would fall in the red- shaded area is 45. 833 %
How to find the probability ?The arc that is covered by the red - shaded area in the circle has a degree measure of 165 degrees. This is out of the total circle angle measure of 360 degrees.
This therefore means that the probability that a randomly selected point within the circle would fall in the red- shaded area can be found to be :
= Angle measure of red - shaped area / Total area x 100 %
= 165 / 360 x 100 %
=0. 45833 x 100 %
= 45. 833 %
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A die is rolled nine times and the number of times that two shows on the upper face is counted. If this experiment is repeated many times, find the mean for the number of twos.
Answers
Answer:
\(E(x) = 1.5\\\)
Step-by-step explanation:
Given
\(n = 9\) -- number of rolls
Required
The mean of 2's
The distribution follows binomial distribution where:
\(X \to Binomial(n,p)\)
In this case:
\(p= \frac{1}{6}\) ---- the theoretical probability of rolling 2
So, the mean of 2's is calculated using:
\(E(x) = np\)
\(E(x) = 9 * \frac{1}{6}\)
\(E(x) = \frac{9}{6}\)
Simplify
\(E(x) = \frac{3}{2}\) or
\(E(x) = 1.5\\\)
Emilio took a random sample of n=12 giant Pacific octopi and tracked them to calculate their mean lifespan. Their lifespans were roughly symmetric, with a mean of x= 4 years and a standard deviation of sx=0.5 years. He wants to use this data to construct a t interval for the mean lifespan of this type of octopus with 90% confidence.
What critical value t* should Emilio use?
Answers
Emilio can find that the critical value t* for a 90% confidence level and 11 degrees of freedom is approximately 1.796.
Define standard deviation?To construct a t interval for the mean lifespan with 90% confidence, Emilio needs to use a t-distribution with n-1 degrees of freedom. The confidence interval for the population is given by:
confidence interval = x ± t × (s·x/√n)
Where x is the sample mean, s·x is the sample standard deviation, n is the sample size, and t is the critical value of the t-distribution.
Since the sample size is n=12, the degrees of freedom for the t-distribution will be (n-1) = 11. To find the critical value t* for a 90% confidence level and 11 degrees of freedom, Emilio can use a t-distribution table or a statistical software.
Using a t-distribution table or calculator, Emilio can find that the critical value t* for a 90% confidence level and 11 degrees of freedom is approximately 1.796.
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Roberto made a line plot to show the weight in pounds of the bags of granola in his store he concluded that the total weight of the granola was 2/1/2+2/3/4+3=8/1/4 pounds
Answers
The correct total weight of the bags of granola is 8 1/4 pounds.
One thing that can be done to improve Roberto's reasoning is to ensure the accuracy of the calculations.
In his conclusion, Roberto added the weights of the bags of granola (2 1/2, 2 3/4, and 3) and claimed that the total weight was 8 1/4 pounds. However, the sum of these weights does not equal 8 1/4 pounds.
To address this, Roberto should recheck his calculations. Adding mixed numbers involves adding the whole numbers separately and then adding the fractions separately. In this case, 2 1/2 + 2 3/4 + 3 can be calculated as follows:
2 + 2 + 3 = 7 (sum of whole numbers)
1/2 + 3/4 = 2/4 + 3/4 = 5/4 = 1 1/4 (sum of fractions)
Thus, the correct sum is 7 + 1 1/4 = 8 1/4 pounds.
By double-checking the calculations and providing the accurate sum, Roberto's reasoning would be more precise, reliable, and free from errors.
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The probable question may be:
Roberto made a line plot to show the weight in pounds of the bags of granola in his store he concluded that the total weight of the granola was 2 1/2+2 3/4+3=8 1/4 pounds.
what is one thing that you could do to Roberto's Reasoning
Four ingredients costing $320 per kg $240 per kg $160 per kg and $85 kg are mixed so that air masses are in the ratio 4:1:3:2. calculate the average cost per kg of the mixture
Answers
Answer:
2160
Step-by-step explanation:
Answer:
2160
Step-by-step explanation:
How do I solve this.....
Answers
Answer:75
Step-by-step explanation:30m and 25m = 75
Solve for x:
18x + 3x + 4 - 5 = 5(4x – 9
Answers
X= - 44
18x+3x+4-5=5(4x9
Collect like terms
21x+4-5=5(4x-9
More variable to the left hand side and change its sign
21x-20x-1=-45
Correct like terms
X=-45+1
Which is x=-44
b
4
10
b = ✓ [?]
Pythagorean Theorem: a2 + b2 = c2
Answers
The average daily temperature, t, in degrees Fahrenheit for a city as a function of the month of the year, m, can be modeled by the equation graphed below, where m = 0 represents January 1, m = 1 represents February 1, m = 2 represents March 1, and so on. If the equation is t = a cosine (StartFraction pi Over 6 EndFraction (m + 1)) + k, what are the values of a and k?
On a coordinate plane, a curve starts at (0, 42). It increases to (5, 80) and then decreases to (11, 40).
Answers
First, we can use the fact that the curve starts at (0,42) to solve for k:
t = acos(pi/6(0+1)) + k
42 = a*cos(pi/6) + k
k = 42 - a*cos(pi/6)
Next, we can use the fact that the curve increases to (5,80) to solve for a:
t = acos(pi/6(5+1)) + (42 - a*cos(pi/6))
80 = a*cos(pi/6*6) + (42 - a*cos(pi/6))
80 = a*cos(pi) + 42 - a*cos(pi/6)
80 = -a + 42 + a*cos(pi/6)
38 = a*cos(pi/6)
a = 38/cos(pi/6)
Finally, we can use the fact that the curve decreases to (11,40) to check our solution:
t = acos(pi/6(11+1)) + (42 - a*cos(pi/6))
40 = a*cos(2*pi) + (42 - a*cos(pi/6))
40 = a + 42 - a*cos(pi/6)
40 = 38/sqrt(3) + 42 - 38/2
40 = 67/sqrt(3)
40 = 38.7...
Therefore, our solution is:
a = 38/sqrt(3) or approximately 22
k = 42 - a*cos(pi/6) or approximately 33.5
A line passes through the point (8,-8) and has a slope of 3/4. Write an equation in slope-intercept form for this line.
Answers
Answer:
Step-by-step explanation:
y + 8 = 3/4(x - 8)
y + 8 = 3/4x - 6
y = 3/4x - 14
A city in China is one of the world's coldest cities and is known for its ice and snow festivals. In February, the average nightly low temperature is −40°C and the average daily high temperature is −9°C. What is the temperature drop (in °C) from day to night?
Answers
The temperature drops by \(31\°C\) from day to night in this city.
To calculate the temperature drop from day to night in \(\°C\), we subtract the average nightly low temperature from the average daily high temperature.
Given:
Average nightly low temperature: \(-40\°C\)
Average daily high temperature: \(-9\°C\)
The temperature drop can be calculated as:
Temperature drop = Average daily high temperature - Average nightly low temperature
Substituting the given values:
Temperature drop = \(-9\°C - (-40\°C)\)
Simplifying the equation:
Temperature drop = \(-9\°C + 40\°C\)
Temperature drop = \(31\°C\)
The concept of temperature drop refers to the difference in temperature between two specific periods or conditions. In this case, we are looking at the temperature drop from day to night in a city in China known for its cold climate.
Therefore, the temperature drops by \(31\°C\) from day to night in this city.
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