We will have that the domain that would allow us to do so is:
\((-\frac{\pi}{2},\frac{\pi}{2})\)A mail distribution center processes as
many as 175,000 pieces of mail each day.
The mail is sent via ground and air. Each
land carrier takes 1500 pieces per load
and each air carrier 1250 pieces per
load. The loading equipment is able to
handle as many as 200 loads per day.
Let x be the number of loads by land carriers
and y the number of loads by air carriers. Which
system of inequalities represents this situation?
Click on the correct answer.
1500x + 1250y≥ 175,000 x+y≥200
1250x + 1500y ≥ 175,000 x+y≤ 200
1500x + 1250y≤ 175,000 x+y≤ 200
1250x + 1500y≤ 175,000 x+y≤ 200
The correct system of inequalities is 1500x + 1250y ≥ 175,000 and x + y ≥ 200, option A is correct.
We have two carriers: land carriers and air carriers.
The land carriers can transport 1500 pieces of mail per load, and the air carriers can transport 1250 pieces of mail per load.
The loading equipment at the distribution center can handle up to 200 loads per day.
To represent this situation using a system of inequalities, we can define the variables x and y as the number of loads by land carriers and air carriers, respectively.
The first inequality, 1500x + 1250y ≥ 175,000, represents the total number of pieces of mail transported per day.
The second inequality, x + y ≥ 200, represents the total number of loads.
Hence, the correct system of inequalities is 1500x + 1250y ≥ 175,000 and x + y ≥ 200.
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Un trabajo puede ser realizado por 30 obreros durante 40 días. si el plazo para terminarlo es de 12 días, ¿cuántos obreros más se deben contratar?
To complete the job in 12 days, they need 100 workers.
How many works are needed?We know that 30 workes can complete 1 job in 40 days, then if each worker works at a rate R, then we can write:
30*R*40 days = 1 job
R = (1/1200) job/day
Then if they need to complete the job in 12 days, the number N of workers needed is:
N*(1/1200)*12 = 1
N = (1200/12) = 100
100 workers are needed.
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A hat contains 35 marbles. Of them, 20 are red and 15 are green. If one marble is randomly selected out of this hat, what is the probability that this marble is red? Round your answer to two decimal places. P(A) =
Answer:
P(A) = 0.57 (rounded to two decimal places).
Step-by-step explanation:
The probability of selecting a red marble from the hat can be found by dividing the number of red marbles by the total number of marbles:
P(red) = number of red marbles / total number of marbles
P(red) = 20/35
We can simplify this fraction by dividing both the numerator and denominator by 5:
P(red) = 4/7
So the probability of selecting a red marble from the hat is 4/7, or approximately 0.57 when rounded to two decimal places.
Therefore, P(A) = 0.57 (rounded to two decimal places).
write 464000 in correct scientific notation
Answer:
The scientific notation is a method of writing very large or very small numbers in a more compact and easy to read format. It is expressed in the form of a x 10^n, where "a" is a number between 1 and 10, and "n" is an integer.
To write 464000 in correct scientific notation, we need to move the decimal point to the left until we get a number between 1 and 10. We count the number of places we moved the decimal point, and that will be the exponent of 10.
So, we can write 464000 as:
4.64 x 10^5
Therefore, the correct scientific notation of 464000 is 4.64 x 10^5.
Step-by-step explanation:
Achilles was chosen to fight for the Greeks and he was honored to accept. Was he a good warrior? He forgot to take care of his weakness and this ultimately was taken advantage of by the defense, which led him being killed in battle. Was this honorable?
This story about the warrior Achilles demonstrates which character trait Homer was teaching?
Courage
Jealousy
Honesty
Answer: I don’t really know
Step-by-step explanation:
What is the length of EF ?
A. 8 pi
B. 4 pi
C. 2 pi
D. Pi
The arc length EF of the circle is 2π. Therefore, option C is the correct answer.
What is arc length of a circle?The arc length is defined as the interspace between the two points along a section of a curve. An arc of a circle is any part of the circumference.
The formula to find the arc length of a circle is θ/360° ×2πr.
Given that, ∠EDF=π/2= 90° and radius of a circle = 4 units.
Here, arc length = θ/360° ×2π×4
= 90°/360° ×2π×4
= 1/4 ×2π×4
= 2π
Therefore, option C is the correct answer.
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Please help and show how you found the answer step by step.
According to the information, the perimeter of the triangle is ≈ 31.18
How to calculate the perimeter of the triangle?To find the distance between two points, we can use the distance formula:
distance = sqrt((x2 - x1)^2 + (y2 - y1)^2)
Let's label the coordinates as follows:
Point 1: (-2, 3)
Point 2: (3, -2)
Now we can substitute these values into the distance formula:
distance = sqrt((3 - (-2))^2 + (-2 - 3)^2)
distance = sqrt((5)^2 + (-5)^2)
distance = sqrt(25 + 25)
distance = sqrt(50)
distance ≈ 7.07
Therefore, the distance from (-2, 3) to (3, -2) is approximately 7.07 units.
To find the perimeter of the triangle, we need to find the length of all three sides of the triangle and then add them up.
Using the distance formula, we can find the length of the sides:
Side 1: (-2,3) to (3,-2)
d = √[(3 - (-2))^2 + (-2 - 3)^2]
= √[5^2 + (-5)^2]
= √50
= 5√2
Side 2: (3,-2) to (-7,-2)
d = √[(-7 - 3)^2 + (-2 - (-2))^2]
= √[(-10)^2 + 0^2]
= 10
Side 3: (-7,-2) to (-2,3)
d = √[(-2 - (-7))^2 + (3 - (-2))^2]
= √[5^2 + 5^2]
= 5√2
Therefore, the perimeter of the triangle is:
5√2 + 10 + 5√2 = 15√2 + 10 ≈ 31.18 (rounded to two decimal places)
An two of the three sides are equal, so it is an isosceles triangle.
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Please solve piecewise
The numeric values of the piecewise function in this problem are given as follows:
f(-4) = -4.f(0) = 0.f(3) = 1.How to calculate the numeric value of a function or of an expression?To calculate the numeric value of a function or of an expression, we substitute each instance of any variable or unknown on the function by the value at which we want to find the numeric value of the function or of the expression presented in the context of a problem.
A piecewise function is a function that has different definitions, based on the input x of the function.
For values of x that are of 1 or less, the function is defined as follows:
f(x) = x.
Hence the numeric values in this interval are given as follows:
f(-4) = -4.f(0) = 0.For values of x that are greater than 1, the function is defined as follows:
f(x) = -x + 4.
Hence, at x = 3, the numeric value of the function is given as follows:
f(3) = -3 + 4 = 1.
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A car travels at a speed of 55 miles per hour. How far will it travel in 5 hours?
Answer:
55*5=275
Step-by-step explanation:
Answer:
275 miles
Since the car travels 55 miles per hour then you would multiply 55 times 5 to get the answer, which is 275.
Given below are descriptions of two lines.
Line 1: Goes through
(
−
5
,
−
9
)
and
(
12
,
42
)
Line 2: Goes through
(
−
9
,
6
)
and
(
−
3
,
4
)
The slope of Line 1 is
m
=
The slope of Line 2 is
m
=
Finally, which of the following is true?
Line 1 is parallel to Line 2.
Line 1 is perpendicular to Line 2
Line 1 is neither parallel nor perpendicular to Line 2
Answer:
Yes
Step-by-step explanation:
Malcolm has $50 gift card to a local car wash and order is the ultimate car wash each visit is $8.95
The amount cheaper is the car washes Malcolm orders than the car washes Martha's order is $13.
The correct answer choice is option B.
How much cheaper is the car washes Malcolm orders than the car washes Martha's order?Malcolm's gift card = $50.
Cost Malcolm's car wash per visit = $7
Martha's gift card = $180
Cost Martha's car wash per visit = Difference between gift card balance of first and second visit
= $180 - $160
= $20
How cheap is the car washes Malcolm orders than the car washes Martha's order = $20 - $7
= $13
Therefore, Malcolm's car wash is cheaper than Martha's car wash by $13
The complete question is attached in the diagram.
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Apples were sold at 9 for $5. Carol bought a total of 27 apples. If Carol paid the cashier using two $10 bills, how much change did she recive?
Answer:
She received $5 back
Step-by-step explanation:
Answer:
170
Step-by-step
Add 5 27 times count by 5s and you will get the answer.
you have 12 pets and 2 die every 1 and half years how many are left
Answer; 0 ,2?
Step-by-step explanation:
im not so sure tbh its a lil confusing dont they tell how many years its been?
Please help!
Triangle ABC has angle measures as shown. Show work. Complete sentence.
(a) What is the value of x?
(b) What is the measure of angle CBA?
(c) What is the measure of angle CAB?
(d) When these 3 interior angles of a triangle are added together, what does it equal?
9514 1404 393
Answer:
(a) x = 22
(b) 46°
(c) 44°
(d) 180°
Step-by-step explanation:
Because the sum of the interior angles of a triangle is 180°, we know that the sum of the acute angles in a right triangle is 90°.
(a)The sum of the marked acute angles is 90°.
2x +(3x -20) = 90
5x = 110 . . . . . . . . . . add 20, collect terms
x = 22 . . . . . . . . . divide by 5
__
(b)∠CBA = (3x -20)° = (3·22 -20)° = 46°
__
(c)∠CAB = 2x° = 2(22)° = 44°
__
(d)The sum of a triangle's interior angles is 180°.
Dividing the sum of (7/8) (15/4) (1/12) by their multiplication gives _________
The Division of the sum of (7/8), (15/4), and (1/12) by their multiplication is (2712/168).
To find the division of the sum of (7/8), (15/4), and (1/12) by their multiplication, we first need to calculate the sum and multiplication of the given fractions.
The sum of the fractions is:
(7/8) + (15/4) + (1/12)
To add these fractions, we need a common denominator. The least common multiple of 8, 4, and 12 is 24. Let's convert each fraction to have a denominator of 24:
(7/8) = (21/24)
(15/4) = (90/24)
(1/12) = (2/24)
Now we can add the fractions:
(21/24) + (90/24) + (2/24) = (113/24)
The multiplication of the fractions is:
(7/8) * (15/4) * (1/12)
To multiply fractions, we multiply the numerators and denominators:
(7*15*1) / (8*4*12) = (7/96)
Now we can divide the sum of the fractions by their multiplication:
(113/24) / (7/96)
To divide fractions, we multiply the first fraction by the reciprocal of the second fraction:
(113/24) * (96/7) = (2712/168)
Therefore, the division of the sum of (7/8), (15/4), and (1/12) by their multiplication is (2712/168).
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An airplane takes 3 hours to travel a distance of 1560 miles with the wind. The return trip takes 4 hours against the wind. Find the speed of the plane in still air and the speed of the wind.
Answer:
it takes 3 hour
Step-by-step explanation:
ypir welcome
Which word phrase can you use to represent the algebraic expression ÷ 8 ?
This phrase can be used in a variety of contexts, from simple arithmetic problems to more complex Algebraic equations and expressions.
The algebraic expression ÷ 8 can be written in a variety of ways depending on the context and the specific operation being performed. However, in general, the phrase "divided by 8" or "the quotient of x and 8" can be used to represent this expression.
For example, if we have an algebraic expression such as 24 ÷ 8, we can write it as
24 divided by 8
the quotient of 24 and 8
24/8
In each case, the idea is the same: we are dividing 24 into 8 equal parts, or finding how many groups of 8 are contained in 24.
In the context of an algebraic equation or expression, the phrase "divided by 8" is often used to indicate that the variable or expression preceding it is being divided by 8. For example:
3x ÷ 8
(2y + 5) ÷ 8
In these cases, we are dividing the value of 3x or the sum of 2y and 5 by 8. The quotient of these expressions will depend on the specific values of x and y."divided by 8" is a commonly used phrase to represent the algebraic expression ÷ 8. This phrase can be used in a variety of contexts, from simple arithmetic problems to more complex algebraic equations and expressions.
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Mark has, in his kitchen, the ingredients needed to prepare 78 different recipes with two ingredients
each. Of those 78 different recipes, there are no two recipes that share the exact same two ingredients.
How many ingredients does he have?
Answer:
13 ingredients
Step-by-step explanation:
The number of different recipes that can be made from 2 ingredients = 78
Since there are no two recipes that share the exact same two ingredients ;
The number of recipes in Mark's kitchen is:
nCk = 78
k = Number of ingredients per recipe = 2
n = total number of ingredients in kitchen
Total recipes made = 78
n! / (n-r)!r! = 78
n! / (n - 2)!2! = 78
n(n-1)(n-2)! / (n-2)! * 2 * 1 = 78
n(n - 1) / 2 = 78
n(n-1) = 156
n² - n = 156
n² - n - 156 = 0
Factorize :
n² - 13n + 12n - 156 = 0
n(n - 13) +12(n-13) = 0
(n-13) = 0 ; (n+12) = 0
n = 13 or n = - 12
n cannot be negative
Hence, n = 13
Number of ingredients is 13
HELP ASAP!!
What is the area of the composite figure below?
A) 84 square inches
B) 90 square inches
C) 98 square inches
D) 104 square inches
Answer:
84 square inches
Step-by-step explanation:
First, separate this shape into two shapes you can easily find the area of. You can do this by turning it into a rectangle and a rhombus.
Say the rectangle has measurements of 5 by 6 inches. The area of that rectangle will be 30 square inches. Save this value to add on later.
The rhombus now has a height of 4 (because the side length 10 minus the side length 6 equals 4), and two bases by the values of 12 and 15. The area of a rhombus can be found with the equation:
a = 1/2(b1 + b2) x h
Simply plug in those values to find the area of the rhombus, 54. Now add the area of the rhombus and the area of the rectangle to get 84 square inches as your final area.
What is the sec 132 degrees 15 minutes in degrees
The sec 132 degrees 15 minutes in degrees is approximately -1.638 degrees.
What is the sec function?The secant function, denoted as sec(x), is a trigonometric function that is defined as the reciprocal of the cosine function, cos(x).
In other words,
sec(x) = 1 / cos(x)
The secant function is defined for all values of x except for those where the cosine function is equal to zero, which corresponds to the values x = (2n+1)π/2 where n is an integer. At these points, the secant function is undefined.
According to the given informationTo convert sec(132 degrees 15 minutes) to degrees, we first need to convert the angle to decimal degrees.
We know that 1 degree is equal to 60 minutes, so 15 minutes is equal to 15/60 = 0.25 degrees.
Therefore, the angle 132 degrees 15 minutes is equal to 132 + 0.25 = 132.25 degrees.
Now we can find the secant of this angle:
sec(132.25 degrees) = 1/cos(132.25 degrees) ≈ -1.638
So the answer is approximately -1.638 degrees.
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Let y=x*e^x. find (d^2 y/dx^2)
We have to find the 2nd derivative of the function:
\(y=xe^x\)We would need to know the product rule of derivatives, which is:
If u and v are two functions, then the derivative of u*v is:
\(\begin{gathered} \text{If y=uv} \\ dy=uv^{\prime}+vu^{\prime} \end{gathered}\)So, we have:
\(\frac{dy}{dx}=x\frac{d}{dx}(e^x)+e^x\frac{d}{dx}(x)\)Remember, the derivative of e^x is e^x and the derivative of "x" is 1.
Thus, we have:
\(\begin{gathered} \frac{dy}{dx}=x\frac{d}{dx}(e^x)+e^x\frac{d}{dx}(x) \\ \frac{dy}{dx}=xe^x+e^x(1) \\ \frac{dy}{dx}=xe^x+e^x \end{gathered}\)To get the 2nd derivative, we again have to use the product rule of differentiation on xe^x and just do the differentiation of e^x and sum it. Thus, the process is shown below:
\(\begin{gathered} \frac{dy}{dx}=xe^x+e^x \\ \frac{d^2y}{dx^2}=x\frac{d}{dx}(e^x)+e^x\frac{d}{dx}(x)+\frac{d}{dx}(e^x) \\ \frac{d^2y}{dx^2}=xe^x+e^x+e^x \\ \frac{d^2y}{dx^2}=xe^x+2e^x \end{gathered}\)The 2nd derivative of the function shown is:
\(\frac{d^2y}{dx^2}=xe^x+2e^x\)Which function has a vertex on the y-axis?
O fx) = (x - 2)2
O f(x) = x(x + 2)
O f(x) = (x-2)(x+2)
O f(x) = (x + 1)(x - 2)
Answer: c
Step-by-step explanation:
Just took the test
Which of the following is the main
reason people buy auto insurance?
A. They want to be covered in case their home starts on
fire.
B. It is not expensive and easily affordable.
C. It is required by law in any state in America.
D. It is very expensive and hard to finance.
Haven't learned this yet.
Explanation:
Most states (but not all) require liability insurance at minimum. This covers injury and property damage to the person you accidently hit. It likely does not cover you personally so you'd need other insurance for that.
States like Iowa, New Hampshire, and Ohio offer exemptions from insurance if you can show you are responsible with money. Meaning that if you have a steady income and are smart with money, then you likely would be able to pay off any future accident without needing insurance. Though the damages might get wildly expensive, so a liability policy isn't always a bad thing.
Find the area of the triangle with the given measurements. Round the solution to the nearest hundredth if necessary. B = 103°, a = 12 cm, c = 22 cm (5 points) a 128.62 cm2 b 132 cm2 c 29.69 cm2 d 257.23 cm2
The area of the triangle, Rounded to the nearest hundredth, is approximately 132.02 cm².
The area of a triangle with the given measurements, we can use the formula for the area of a triangle using side lengths and an included angle. The formula is:
Area = (1/2) * a * c * sin(B)
where a and c are the side lengths, B is the included angle between those sides, and sin(B) represents the sine of angle B.
Let's calculate the area using the given measurements:
B = 103° (included angle)
a = 12 cm
c = 22 cm
First, we need to convert the angle from degrees to radians, as the sine function operates on radians. We can use the conversion: radians = degrees * (π/180).
B in radians = 103° * (π/180) ≈ 1.8 radians
Next, we can substitute the values into the formula:
Area = (1/2) * a * c * sin(B)
= (1/2) * 12 cm * 22 cm * sin(1.8 radians)
Using a calculator, we can evaluate sin(1.8 radians) ≈ 0.9833.
Area ≈ (1/2) * 12 cm * 22 cm * 0.9833
≈ 132.02 cm² (rounded to the nearest hundredth)
Therefore, the area of the triangle, rounded to the nearest hundredth, is approximately 132.02 cm².
Among the given options, the closest match is:
b) 132 cm² (rounded to the nearest whole number)
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Kelsey has a list of possible functions. Pick one of the g(x) functions below and then describe to Kelsey the key features of g(x), including the end behavior, y-intercept, and zeros.
g(x) = (x + 2)(x − 1)(x − 2)
g(x) = (x + 3)(x + 2)(x − 3)
g(x) = (x + 2)(x − 2)(x − 3)
g(x) = (x + 5)(x + 2)(x − 5)
g(x) = (x + 7)(x + 1)(x − 1)
The zeros of g(x) = (x + 2)(x − 1)(x − 2) are x = -2, 1 and 2
The y-intercept is g(0) = 4The end behaviour is \(\mathrm{as}\:x\to \:+\infty \:,\:g\left(x\right)\to \:+\infty \:,\:\:\mathrm{and\:as}\:x\to \:-\infty \:,\:g\left(x\right)\to \:-\infty \:\)From the question, we have the following parameters that can be used in our computation:
The 5 functions of g(x)
To determine the key features of the function g(x), we make use of the first
g(x) = (x + 2)(x − 1)(x − 2)
So, we have
Zeros
This is when the function equals 0
(x + 2)(x − 1)(x − 2) = 0
Evaluate
x = -2, 1 and 2
The y-intercept
This is when the value of x in the function equals 0
g(0) = (0 + 2)(0 − 1)(0 − 2)
Evaluate
g(0) = 4
End behaviour
This is the behavior of the graph of the function as it approaches the ends of the x-axis
So, we have
\(\mathrm{as}\:x\to \:+\infty \:,\:g\left(x\right)\to \:+\infty \:,\:\:\mathrm{and\:as}\:x\to \:-\infty \:,\:g\left(x\right)\to \:-\infty \:\)
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What is the area of this triangle?
Enter your answer in the box.
Answer:
14 or 14(unit)^2
Step-by-step explanation:
Area of a triangle = (base × height)/2
2--5 = 7
2--2 = 4
(7 × 4)/2 = 28/2 = 14
29. Assertion :7√5, √2+21 are the irrational number. Reason: every integer is an rational number 30.
The assertion is true. Both 7√5 and √2 + 21 are irrational numbers because they cannot be expressed as fractions.
The assertion is true. Both 7√5 and √2 + 21 are irrational numbers.
An irrational number is defined as a number that cannot be expressed as a fraction of two integers and has an infinite non-repeating decimal representation.
In the case of 7√5, the square root of 5 is an irrational number because it cannot be expressed as a fraction. Multiplying it by 7 does not change its irrational nature.
Similarly, √2 is also an irrational number because the square root of 2 cannot be expressed as a fraction. Adding 21 to √2 does not alter its irrationality.
The reason provided, that every integer is a rational number, is not relevant to the given assertion. While it is true that every integer is a rational number because it can be expressed as a fraction (e.g., 3 can be written as 3/1), it does not contradict the fact that 7√5 and √2 + 21 are irrational numbers.
In conclusion, the assertion is valid, and both 7√5 and √2 + 21 are irrational numbers.
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someone please answer this its confusing me
how can you
change the equation y = mx + b to
shift the graph down?
Step-by-step explanation: To shift the graphs up and down on the coordinate system, you need to manipulate or change the y-intercepts.
The y-intercept is just the constant term in the equation.
As long as the slopes remain the same, the graphs can be
translated up or down by changing the constant value.
Take a look at these lines graphed below.
Notice that y = x + 11 is the same as y = x + 4 but
y = x + 11 is translated 7 units down to get y = x + 4.
The diameter of cork of a Champagne bottle is supposed to be 1.5 cm. If the cork is either too large or too small, it will not fit in the bottle. The manufacturer measures the diameter in a random sample of 36 bottles and finds their mean diameter to be 1.4 cm with standard deviation of 0.5 cm. Is there evidence at 1% level that the true mean diameter has moved away from the target?
Answer:
\(t_{n-1,\alpha/2}=3.59114678\)
Therefore we do not have sufficient evidence at \(1\%\) level that the true mean diameter has moved away from the target
Step-by-step explanation:
From the question we are told that:
Sample size \(n=36\)
Mean diameter \(\=x=1.4\)
Standard deviation \(\sigma=0.5cm\)
Null hypothesis \(H_0 \mu=1.5\)
Alternative hypothesis \(\mu \neq 1.5\)
Significance level \(1\%=0.001\)
Generally the equation for test statistics is mathematically given by
\(t=\frac{\=x-\mu}{\frac{s}{\sqrt{n} } }\)
\(t=\frac{1.4-1.5}{\frac{0.5}{\sqrt{36} } }\)
\(t=-1.2\)
Therefore since this is a two tailed test
\(t_{n-1,\alpha/2}\)
Where
\(n-1=36-1=>35\)
\(\alpha=/2=0.001/2=>0.0005\)
From table
\(t_{n-1,\alpha/2}=3.59114678\)
Therefore we do not have sufficient evidence at \(1\%\) level that the true mean diameter has moved away from the target