Answer:
8 3/4
Step-by-step explanation:
1 + 7 3/4 = 8 3/4 bbbbbbbbbbbbbb
Prove for any real number, |x−6|+x>3. Please use proof by cases, explaining each as you go.
The proof of |x−6|+x>3 is shown below.
What is Inequality?Mathematical expressions with inequalities are those in which the two sides are not equal. Unlike to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.
Given:
We have |x−6|+x>3.
Now, opening the absolute value
|x−6|+x>3
-(x- 6) + x >3
-x + 6 +x > 3
6 > 3
Thus, |x−6|+x>3 has been proved.
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A chef has three blocks of butter each block weighs 1 pound she cut each blocks into fifths how many 1/5 pounds pieces of butter does the chef have
Answer:
Chef will have 15 pieces of butter.
Step-by-step explanation:
Chef has 3 blocks of butter,
weight of each block = 1 pound
she cuts each block into fifth pieces,
3 / 1/5 = 15 pieces
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In a circle R with m angel QRS =46, find the angel measure of minor are QS
The angle measure of minor arc QS is 92 degrees, and the angle measure of angle QQS is 46 degrees.
What is Angle?
In geometry, an angle is a figure formed by two rays that have a common endpoint, called the vertex of the angle. The rays that form the angle are called the sides of the angle. Angles are typically measured in degrees or radians and are used to describe the amount of rotation between two intersecting lines or planes.
In a circle, the measure of an inscribed angle is equal to half the measure of the intercepted arc. Since QS intercepts the minor arc QR, the measure of angle QRS is equal to half the measure of the minor arc QS.
Therefore, if m∠QRS = 46, then m(arc QS) = 2×m∠QRS = 2×46 = 92 degrees.
Since the measure of an arc is equal to the measure of the central angle that intercepts it, and the sum of the measures of the central angles in a circle is 360 degrees, we have:
m(arc QS) + m(arc QR) = 360 degrees
Substituting the value of m(arc QS) that we found above, we get:
92 degrees + m(arc QR) = 360 degrees
Solving for m(arc QR), we get:
m(arc QR) = 360 degrees - 92 degrees = 268 degrees
Since QS is a minor arc of the circle, the measure of angle QQS is equal to half the measure of the arc QS. Therefore, we have:
m∠QQS = 0.5×m(arc QS) = 0.5×92 = 46 degrees
Therefore, the angle measure of minor arc QS is 92 degrees, and the angle measure of angle QQS is 46 degrees.
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2
A worker earned #80 per hour for a 38-hour week in a company. The company pays overtime at
a time and a half. In one week he earned #3640. Find the total numbers of hours he worked that
week.
3
Kasham travelled from Lagos to Akure, a distance of 350km. The first 210km she spent 3hours
and the remaining distance she spent 2hours 45minutes. (a) Calculate the speed for each part
of the journey. (b) Calculate the average speed for the whole journey in (i) km/h (ii) m/s to 1d.p
Answer:
2. Total Hours= 38+5 = 43
Step-by-step explanation:
2. Wage at Normal rate80 *38 = 3040
Extra Sum of Money then Normal wage 3640-3040 = 600
Overtime rate 80*1.5= 120
Overtime hours 600/120=5
3. (a) 210/3 = 70km/hr
140/(2.75*) = 50.91 km/hr
*2.75= 2+ (45/60)
A Gardner makes a nice new circular flower bed the bed is ten feet in diameter calculate the circumference and the area of the circular flower bed
The area of the circular flower bed is approximately 78.54 square feet.
The circular flower bed's 10 foot diameter corresponds to a radius of 5 feet, or half the diameter. The area and circumference of the circular flower bed can be determined using the following data:
Circumference:
The formula for calculating a circle's circumference is:
C = 2πr
where the mathematical constant is roughly equivalent to 3.14159 and r is the circle's radius.
Using the values we were provided as replacements, we obtain:
C = 2π(5) \sC = 10π
We may calculate a rough estimate of the circumference using a calculator:
C ≈ 31.42 feet
As a result, the flower bed's circumference is approximately 31.42 feet.
Area:
The area of a circle is determined using the following formula:
A = πr²
Using the values we were provided as replacements, we obtain:
A = π(5)² \sA = 25π
We can calculate the area's value using a calculator as follows:
A area of 78.54 square feet.
Thus, the circumference of the flower bed is about 78.54 square feet.
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Write the equation of a rational function that has been translated left 2 units and shifted up 1 unit.
The equation of a rational function that has been translated left 2 units and shifted up 1 unit is: f(x) = (a(x - 2) + b + 1) / (c(x - 2) + d)
What is a function?A relation is a function if it has only One y-value for each x-value.
A general form of a rational function is:
f(x) = (ax + b) / (cx + d)
To translate this function left 2 units, we need to replace x with x + 2. This gives us:
f(x + 2) = (a(x + 2) + b) / (c(x + 2) + d)
To shift this function up 1 unit, we need to add 1 to the numerator. This gives us:
f(x + 2) = (a(x + 2) + b + 1) / (c(x + 2) + d)
Therefore, the equation of a rational function that has been translated left 2 units and shifted up 1 unit is: f(x) = (a(x - 2) + b + 1) / (c(x - 2) + d)
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Sam is collecting money for an animal shelter. He collects $150.00 each day for 6 days. The shelter will use 35% of the money he collects to buy pet food. The rest of the money will be used to buy cleaning supplies.
How much of the money that Sam collects will be used to buy cleaning supplies?
According to the solving Sam will spend $585.00 of the money he collects on cleaning materials.
What do the percentages mean?%, a relative figure signifying hundredths of any amount. Since one percent (symbolised as 1%) is equal to one hundredth of something, 100 percent stands for everything, and 200 percent refers to twice the amount specified. percentage. Mathematical percentile is a related topic.
According to the given information:Sam collects $150.00 each day for 6 days, so the total amount he collects is:
$150.00/day x 6 days = $900.00
The shelter will use 35% of the money he collects to buy pet food. To find out how much money will be used to buy pet food, we can multiply the total amount Sam collects by 35% (or 0.35):
$900.00 x 0.35 = $315.00
So, $315.00 of the money that Sam collects will be used to buy pet food. To find out how much money will be used to buy cleaning supplies, we can subtract the amount used to buy pet food from the total amount collected:
$900.00 - $315.00 = $585.00
$585.00 of the money that Sam collects will be used to buy cleaning supplies.
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The data below shows the colors preferred by a group of people. We want to plot this on a pie chart. What will be the central angles of each of these categories?
Red=
blue=
green=
purple=
The central angles for each category are approximately: Red: 100°, Blue: 150°, Green: 50° and Purple: 60°
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
To find the central angle of each category, we first need to calculate the total number of people:
Total = 20 + 30 + 10 + 12 = 72
Next, we can calculate the percentage of people who prefer each color:
Red: 20/72 = 0.278, or 27.8%
Blue: 30/72 = 0.417, or 41.7%
Green: 10/72 = 0.139, or 13.9%
Purple: 12/72 = 0.167, or 16.7%
To find the central angle for each category, we can multiply the percentage by 360°:
Red: 0.278 × 360° = 100.08°
Blue: 0.417 × 360° = 150.12°
Green: 0.139 × 360° = 50.04°
Purple: 0.167 × 360° = 60.48°
Therefore, the central angles for each category are approximately:
Red: 100°, Blue: 150°, Green: 50° and Purple: 60°
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The principal P is borrowed and the loan's future value A at time t is given. Determine the loan's simple interest rate r.
P = $2300, A = $2762, t = 6 months
The loan's simple interest is
%.
The loan's simple interest rate when the loan of $2,300 is taken will be 40.17%.
What is simple interest?Let P be the principal, R be the rate of interest, and T be the time. Then the interest rate is given as,
The formula for interest is written as,
I = (PRT)/100
The value of the principal is $2,300 and the amount generated in six months is $2,762. Then the percentage rate is calculated as,
($2,762 - $2,300) = [$2,300 x r x (6/12)] / 100
46,200 = 1,150r
r = 40.17%
The loan's simple interest rate when the loan of $2,300 is taken will be 40.17%.
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Help due in 30 mins
.
The cost of a Boston Red Sox baseball cap is $24.00. The local sporting goods store sells it for 30.00, Find the markup rate?
Answer:
25%
Step-by-step explanation:
$30-$24 =$6
$6×100
________ =25 percent
24
Write an inequality that represents 12more than w is at least 45?
Answer:
The inequality that represents the given statement is:
12 + w ≥ 45
Step-by-step explanation:
If x= 1, solve for y.
y = 3.5x
y = [?]
3.5
you plug in 1 in the x spot then solve
3.5 (1)
which then equals 3.5
that means that's what Y equals
The mean score on the Stats exam
was 75 points with a standard deviation of 5 points,
and Gregor's z-score was -2. How many points did he
score?
Gregor scored 65 points on the Stats exam.
How to determine the number of points he scoredWe can use the formula for calculating z-score:
z = (x - μ) / σ
Where
z is the z-score,x is the raw score, μ is the population meanσ is the population standard deviation.We are given that the population mean (μ) is 75 and the population standard deviation (σ) is 5.
We are also given that Gregor's z-score (z) is -2.
We can plug these values into the formula and solve for x:
-2 = (x - 75) / 5
Multiplying both sides by 5, we get:
-10 = x - 75
Adding 75 to both sides, we get:
x = 65
Hence, the score is 65 points
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y= a(1+r)t
1. The sales of McDonald's for one year is $650,000. Their sales are increasing at a rate of
4% per year. What will be their sales after 5 years?
a=
r=
t =
2. The population of a school is 800 students and is increasing at a rate of 2% per year.
What will be their population after 6 years?
a=
r=
t =
3.There are 70 northern sea otters that are seeing a growth at a rate of 18%.What will their population be after 4 years?
a=
r=
t=
4. Annual sales for a furniture stores are $375,000 and are increasing at a rate of 6.75% each year.What will their sales me after 9 years?
a=
r=
t=
5. The population of Indiana showed an annual growth rate of 0.6%.Their population in 1999 was 273,000,000. What will their population be in 2007?
a=
r=
t=
1) If the sales of McDonald's for one year is $650,000 and increasing at 4% annually (exponential growth), their sales after 5 years will be $790,824.
2) If the population of a school is 800 students and is increasing at a rate of 2% per year (exponential growth), after 6 years, the population will be 901.
3) With 70 northern sea otters growing at a rate of 18% annually (exponential growth), after 4 years, the population will be 136.
4) If the annual sales for a furniture stores are $375,000 and increasing (exponential growth) at a rate of 6.75% each year, the sales after 9 years will be $675,060.
5) If the population of Indiana showed an annual growth rate of 0.6% (exponential growth) and their population in 1999 was 273,000, the population in 2007 will be 286,383.
What is exponential growth?Exponential growth refers to the consistent increase in quantity over time and at a constant growth rate.
Exponential growths are modeled using the exponential growth function y = a(1+r)^t.
1. McDonalds:
y= a(1+r)^t
Where a = $650,000
r = 0.04 (4%)
t = 5 years
Sales after 5 years, y= a(1+r)^t
= $650,000 (1.04)^5
= $650,000 × 1.2166529
= $790,824
2) School Population:
Current population = 800
Annual increasing rate = 2%
a = 800
r = 2%
t = 6 years
Population after 6 years, y= a(1+r)^t
= 800(1.02)^6
=901
3) Northern Sea Otters:
a = 70
r = 18% or 0.18
t = 4 years
Population after 6 years, y= a(1+r)^t
= 70(1.18)^4
= 136
4) Furniture Stores:
a = $375,000
r = 6.75% or 0.0675
t = 9 years
Sales after 9 years, y = a(1+r)^t
= 375,000(1.0675)^9
= $675,060
5) Indiana Population:
a = 273,000
r = 0.6% or 0.006
t = 8 years (2007 - 1999)
Population after 8 years, y = a(1+r)^t
= 273,000(1.006)^8
= 286,383
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Find the cube root of these expression
³√5׳√5׳√5=
We can simplify this expression by multiplying the cube roots together:
³√5 × ³√5 × ³√5 = ³√(5 × 5 × 5)
Simplifying the product inside the cube root, we get:
³√(125)
Therefore, the cube root of 5 × 5 × 5 is equal to:
³√5׳√5׳√5 = ³√125 = 5
Using the grouping method put this equation into factored form
Triangle ABC is shown. Use the graph to answer the question. triangle ABC on a coordinate plane with vertices at negative 8 comma 1, 0 comma 1, negative 4 comma 5 Determine the coordinates of the image if triangle ABC is translated 8 units to the right. A′(−14, 1), B′(−8, 1), C′(−12, 5) A′(−6, 9), B′(0, 9), C′(−4, 13) A′(0, 1), B′(8, 1), C′(4, 5) A′(2, −7), B′(8, −7), C′(4, −3)
The cοοrdinates οf the image if triangle ABC is A′(0, 1), B′(8, 1), C′(4, 5).
What is Triangle?A triangle is a clοsed, twο-dimensiοnal geοmetric figure with three straight sides and three angles. It is οne οf the basic shapes in geοmetry.
A triangle is a pοlygοn with three edges and three vertices. It belοngs tο the basic geοmetric shapes. A triangle with vertices A, B, and C is knοwn as triangle ABC. Any three pοints in Euclidean geοmetry that are nοt cοllinear result in a distinct triangle and a distinct plane.
The cοοrdinates οf the image if triangle ABC is translated 8 units tο the right are:
A′(0, 1), B′(8, 1), C′(4, 5).
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ALGEBRA 1 HW!! I WILL GIVE BRAINLYEST FOR ANSWERS!!!
NO BRAINLYEST FOR RANDOM ANSWERS
The domain and the range of h(n) are the set of whole numbers
How to determine the domain and the range of h(n)Given that
h(n) is the number of houses
The possible values of n and h(n) are whole numbers
So, we have
Domain: All set of whole numbersRange: All set of whole numbersHow to determine the values of h(5) and h(11)Based on the patterns in the sequence, we have
h(n) = n
So, we have
h(5) = 5
h(11) = 11
How to determine the explicit function of h(n)In (b), we have
h(n) = n
How to determine the values of s(4) and s(7)Given that
s(n) is the number of segments
Based on the patterns in the sequence, we have
s(n) = 2n
So, we have
s(4) = 8
s(7) = 14
How to determine the growth pattern of s(n)Above, we have
s(n) = 2n
The above equation is a proportional equation
This means that
The growth pattern of s(n) is linear, with a constant rate of change
How to determine the explicit function of s(n)Above, we have
s(n) = 2n
Hence, the explicit of s(n) is s(n) = 2n
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Fill in the table, write an equation, find the LCD, and find the average rate.
The LCD we can use to simplify the equation is (2-r)(2+r) = 4 - r².
What is LCD?The lowest common denominator is defined as the set of fraction denominators with the lowest common multiple. The lowest positive integer with more than one denominator in the set is LCD.
1. We can use the formula:
distance = rate × time
For the upstream journey:
distance = 4 miles
rate = 2 - r (since Dara is paddling against the current)
time = 4/(2-r) hours
For the downstream journey:
distance = 4 miles
rate = 2 + r (since Dara is paddling with the current)
time = 4/(2+r) hours
We can fill in the table as follows:
Distance (mi) Avg Speed (mph) Time (h)
With Current: 4 2+r (4)/(2+r)
Against Current: 4 2-r (4)/(2-r)
2. We know that the total time for the round trip is 6 hours:
4/(2-r) + 4/(2+r) = 6
3. Multiplying both sides by the LCD (2-r)(2+r), we get:
4(2+r) + 4(2-r) = 6(2-r)(2+r)
Simplifying, we get:
8 = 12 - 2r²
Rearranging, we get:
r² = 2
Taking the square root of both sides, we get:
r = ±√2
Since the current is flowing in one direction, we take the positive square root:
r = √2 ≈ 1.41 miles per hour
The LCD we can use to simplify the equation is (2-r)(2+r) = 4 - r².
4. To the nearest hundredth, the rate of the current is approximately 1.41 miles per hour, which is option B: About 1.15 miles per hour (rounded to two decimal places).
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-31.5 + 15x - 1.5x^2
The value of x for the given expression is x = 7 and x = 3.
What is a quadratic expression?A mathematical expression with the form ax² + bx + c, where a, b, and c are constants and x is a variable, is known as a quadratic expression. The graph of a quadratic expression can be represented by a U-shaped parabola. The y-intercept of the parabola is determined by the constant term c, whereas the coefficient a decides whether the parabola opens up or down.
The given expression is:
1.5x² - 15x + 31.5x = 0
The quadratic formula is given as:
x = -b ± √b² - 4ac / 2a
x = 15 ± √(15)² - 4(1.5)(31.5) / 2(1.5)
x = 15 ± 6 / 3
x = 15 + 6 / 3 and x = 15 - 6/3
x = 7 and x = 3
Hence, the value of x for the given expression is x = 7 and x = 3.
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algebra l
Find an exponential model that is a reasonable fit for the data.
The exponential model that is a reasonable fit for the data is f(x)=
The optimal strategy would be to fit several models to the data using equation mathematical software or tools, and then assess the goodness of fit using statistical metrics like R-squared or Mean Squared Error.
What is equation?In a mathematical equation, the equals sign (=), which connects two claims and denotes equality, is utilised. In algebra, an equation is a mathematical statement that proves the equality of two mathematical expressions. For instance, in the equation 3x + 5 = 14, the equal sign separates the numbers by a space. Mathematical expressions can be used to describe the relationship between the two sentences on either side of a letter. The logo and the particular piece of software frequently correspond. like, for instance, 2x - 4 = 2.
The following exponential model could be a good fit for the data in the image:
[tex]f(x) = 7.5 * e^(0.1x) (0.1x)[/tex]
The data is assumed to develop exponentially with a base of e in this model, with a growth rate of 10% for each unit increase in x.
It is crucial to remember that this is only one potential model and that other exponential models with other parameters could also be able to satisfactorily match the data. The optimal strategy would be to fit several models to the data using mathematical software or tools, and then assess the goodness of fit using statistical metrics like R-squared or Mean Squared Error.
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F. Vincent and Mike collect cards. Vincent has 24 cards and Mike has collected m more cards than Vincer
Write an expression that represents the total number of cards Vincent and Mike have collected.
...
which equation describes the line that passes through the points (1,3) and (-2,6)
y= -x+4
y= -2x+6
y= -2x+3
y= -x+3
hi
im pretty sure the answer is:
y= -x+4
Help please
: Thank you
The mistake is in the second step, the negative signs shouldn't be on the diagonal elements.
What is the error in the inverse matrix equation?Here we can see that someone is trying to find an inverse matrix.
To get it, we need to change the order of the elements in the diagonal (thing that has ben done) and change the signs of the elements that are not in the diagonal (in the image we can see that this person changed the signs on the diagonal).
So there is the mistake, the negative signs should be in the 3 and the 5 in the second step.
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A bookstore needs to sell at least 235 books. The number of books the store sells is described by 745-30b,where is the price per book.
Select the answer choice in each blank to make the statement true.
The range of the (profit per book)
Sold should be
(greater than $30 )
(between $0 and $17)
(greater than $17)
(between $17 and $30)
The parentheses are the choices for the answer.
The choice in the blank to make the statement true will be D. between $17 and $30)
How to explain the informationRevenue = Price per book × Number of books sold = (745 - 30P) b
Since the store needs to sell at least 235 books, we have:
Revenue ≥ 235 × Price per book = 235(745 - 30P)
Simplifying this inequality, we get:
745b - 30Pb ≥ 235 × 745
P ≤ (745/30) - (235/b)
Since we want to find the minimum profit per book sold, we need to maximize the value of (235/b). The maximum value of (235/b) occurs when b is minimized
If we assume that the cost per book is constant, then the profit per book sold will increase as the price per book increases. Therefore, we can say that the minimum profit per book sold that would enable the store to sell at least 235 books is greater than $17.
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please help me with this
The linear function that models the scatter plot is given as follows:
y = 7/8x + 6.
How to define the linear function?The slope-intercept definition of a linear function is given as follows:
y = mx + b.
In which:
m is the slope, representing the rate of change.b is the intercept, representing the value of y when x = 0.For the equation in this problem, we have that:
The slope is positive, as when x increases, y increases.The intercept is also positive, as the graph is composed only by positive values.Hence the option that satisfies the sign of the slope and the intercept is given as follows:
y = 7/8x + 6.
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In cricket, one over consists of 6 balls being bowled. Determine the number of overs bowled if 120 balls are bowled.
Therefore, 20 overs are bowled if 120 balls are bowled in cricket.
What is equation?An equation is a mathematical statement that shows that two expressions are equal. It consists of two parts: the left-hand side (LHS) and the right-hand side (RHS), separated by an equals sign (=). The equals sign indicates that the two expressions are equal, and the goal of solving the equation is to find the value of x that makes this statement true. Equations can be solved using various algebraic techniques, such as simplifying and rearranging the expressions, applying operations to both sides of the equation, and factoring or expanding expressions. Solving an equation involves finding the values of the variables that make the equation true.
Here,
If 6 balls are bowled in one over, then the number of overs can be determined by dividing the total number of balls by 6.
So, if 120 balls are bowled, the number of overs is:
Number of overs = 120 balls ÷ 6 balls/over
= 20 overs
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the following data gives the amount in thousand spend s on feeding by fourty
household in ibadan in febuary 2023
32,22,19,18,43,42,40,43,18,21,31,26,22,25,47,40,26,32,34,22,35,38,34,41,36,25,22,45,48,26,28,38,35,19,47,28,26,35,38,35.
( a) construct a frequency distribution using class interver
(b) hence compute the (1) class mark for each class (2)class boundary for each class (3) cummulate frequency of the distribution (4) relative frequency of the classes (5) relative cummulative frequency.
The frequency distribution is calculated below
How to construct the frequency distributionThe dataset is given as
32,22,19,18,43,42,40,43,18,21,31,26,22,25,47,40,26,32,34,22,35,38,34,41,36,25,22,45,48,26,28,38,35,19,47,28,26,35,38,35.
To construct a frequency distribution using class intervals, we calculate the class width as follows:
Class width = Range / Number of intervals
So, we have
Class width = (48 - 18)/5 = 6
Now we can construct the frequency distribution table:
Class Interval Frequency
18 - 23 9
24 - 29 8
30 - 35 9
36 - 41 7
42 - 47 6
48 - 53 1
The class mark for each class can be calculated as:
Class mark = (Lower limit + Upper limit) / 2
For the class boundaries, we use the following formula
Lower boundary = Lower limit - 0.5
Upper boundary = Upper limit + 0.5
For the cumulative frequency of the distribution, we need to add up the frequencies of each class and all the preceding classes.
Lastly, for the relative frequency we divide each frequency by the total frequency (40)
Using the above as a guide, we have
Interval Frequency Boundaries Mark CF
18 - 23 9 17.5 - 23.5 20.5 9
24 - 29 8 23.5 - 29.5 26.5 17
30 - 35 9 29.5 - 35.5 32.5 26
36 - 41 7 35.5 - 41.5 38.5 33
42 - 47 6 41.5 - 47.5 44.5 39
48 - 53 1 47.5 - 53.5 50.5 40
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On a grid, a middle school is located at (-5, 3), and a library is located at (2, 3). If 1 unit represents 1 mile on the grid, how far is the library from the middle school, in miles?
Answer: To find the distance between two points on a grid, we can use the distance formula:
distance = sqrt((x2 - x1)^2 + (y2 - y1)^2)
where (x1, y1) and (x2, y2) are the coordinates of the two points.
In this case, the coordinates of the middle school are (-5, 3), and the coordinates of the library are (2, 3). So we have:
distance = sqrt((2 - (-5))^2 + (3 - 3)^2)
distance = sqrt((2 + 5)^2 + 0^2)
distance = sqrt(7^2)
distance = 7
Therefore, the library is 7 miles away from the middle school.
Step-by-step explanation:
A polygon has vertices whose coordinates are A(1, 4), B(4, -1), C(-1, -4), and D(-4, 1). Use the midpoint formula to determine whether or not the diagonals of polygon ABCD bisect each other. In your final answer, include all of your calculations.
Answer:
Step-by-step explanation:
midpoint of AC
[tex]x=\frac{1-1}{2} =0\\y=\frac{4-4}{2} =0\\mid ~point~of~AC=(0,0)[/tex]
midpoint of BD
[tex]x=\frac{4-4}{2} =0\\y=\frac{-1+1}{2} =0\\midpoint ~of~BD=(0,0)[/tex]
so diagonals bisect each other.