Answer: Permutation: A permutation is an course of action of a set of objects in a particular arrange. The number of conceivable changes of a set of n objects is n factorial (n!), which is the item of all positive integrability up to n.
Factorial: The factorial of a non-negative numbers n is signified by n! and is characterized as the item of all positive integrability less than or rise to to n. For case, 5! = 5 x 4 x 3 x 2 x 1 = 120.
Series: A arrangement may be a entirety of terms organized in a particular arrange. The entirety of the terms in a arrangement is called its add up to.
Circular permutation: A circular stage may be a stage of a set of objects in a circular course of action, where the arrange of objects things, but the beginning point is subjective. For case, orchestrating the letters A, B, and C in a circle would result in 3 circular stages: ABC, BCA, and CAB. The number of conceivable circular stages of a set of n objects is (n-1)!.
Step-by-step explanation:
building and reduce
1/2 = / 10
Answer: 5/10
Explanation: Compare the denominators. Since 2 ⋅ 5 = 10, multiply the numerator 1 by 5 to get 5.
Fourteen less than eight times a number is three more than four times the number. What is the number?
Answer:
8n - 14 = 4n + 3 is the equation
and
n = 4.25
Step-by-step explanation:
hope this helped a little bit :))
if rx y= 0.83, then we can conclude that x and y have a relatively
If rxy = 0.83, we can conclude that x and y have a relatively strong positive linear relationship or correlation.
The correlation coefficient (r) measures the strength and direction of the linear relationship between two variables, in this case, x and y. The value of r ranges between -1 and 1. A positive value indicates a positive relationship, meaning that as one variable increases, the other variable tends to increase as well.
In this case, with rxy = 0.83, the correlation coefficient is close to 1, suggesting a strong positive linear relationship. This means that when x increases, y also tends to increase, and vice versa. The closer the value of r is to 1, the stronger the linear relationship between x and y.
It is important to note that correlation does not imply causation. While a high correlation coefficient indicates a strong linear relationship, it does not provide information about the underlying cause or direction of the relationship between the variables. Other factors and variables may influence the relationship, and further analysis may be required to understand the nature of the relationship between x and y.
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This is the last question until spring break. You can answer with A or B, Both, or neither :)
Answer:
both
Step-by-step explanation:
HELP DUE IN 10 MINS!
Rounds to nearest foot.
The ladder reaches ?? feet up the wall
Answer:
Use sine:
x/ 30 = sin 35°x = 30 sin 35°x = 17 ft (rounded)6. The quadratic functions f(x)=-x² + 2x+6 and g(x)=x² + 2x are shown graphed below. The positive
solution to f(x) = g(x) is closest to which of the following?
(1) x = 6.5
(3) x=1.7
(2) x = 3.7
(4) x=0.5
At what time between 2 pm to 3 pm is the first right angle formed by hands of the clock.
At 2:27pm, between 2 pm to 3 pm is the first right angle formed by hands of the clock.
Total degree in a click which is shaped like a circle: 360°
The number of degrees a minute hand will cover- 360 / 60 = 6°
The minutes the hands cover when right angle 90/ 6 = 15
This means when the hands are at a ninety-degree angle they are 15 minutes apart.
The number of degrees covered by the hour hand in an hour:
= 360 / 12
= 30°
The number of degrees covered by the hour hand in a minute:
= 360 / 12 × 60
= 0.5°
We have to start at 2:00, the time when the minute hand is at 0 degrees and the hour hand is at (360)*2/12 = 60 degrees.
We must find the time T it takes for the hour hand of the clock to move to an angle A(hour) at the same time that the minute hand is at an angle of
A(hour) + 90.
The minute hand rotates at 360 degree per hour
= (360 degree)/60 minutes
= 6 degree/minute
=0.1 s
The hour hand moves at 1/12th the speed of the second hand, so its rotational rate is
= 0.5 degrees/minute.
= 0.0083 degree/second)
So the angle A(minute) of the minute hand at any time t [ sec] will be A(m)
= 0.1 t.
The angle of the hour hand will be A(hour) = 60 + 0.0083 t.
60 degrees is added as the hour hand has a “head start” of 60 degrees at 2:00.
Now the task is to find the time t at which
A(m) = A(h) + 90
0.1 t = 60 + 0.0083 t + 90
This solves to give us the answer
= 1635.8 s
=27.26 m
= 27 min 15.6 sec
So the hour and minute hands will form a right angle at 2:27 pm
(2 hours 27 minutes 15.6 seconds)
Therefore the correct answer is 2:27 pm.
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If you are driving at a constant speed of 50 miles per hour, how much DISTANCE will you cover if you drive for 2 hours?
Answer:
Step-by-step explanation:
50 x 2 = 100 mile
Use identities to find the value of each expression.
5) Find cot 0 and tan 0
to find the value of each expression.
if sec 0 = 2 and sin 0 > 0.
Answer:
cot 0 = √3/3 and tan 0 = √3
Step-by-step explanation:
We can use the following trigonometric identities:
cot θ = 1/tan θ
sec^2 θ = 1 + tan^2 θ
Given sec θ = 2 and sin θ > 0, we can use the identity sec^2 θ = 1 + tan^2 θ to find tan θ:
sec^2 θ = 1 + tan^2 θ
2^2 = 1 + tan^2 θ
tan^2 θ = 3
tan θ = √3
Now that we know tan θ, we can use the identity cot θ = 1/tan θ to find cot θ:
cot θ = 1/tan θ
cot θ = 1/√3
cot θ = √3/3
Therefore, cot 0 = √3/3 and tan 0 = √3.
An airport parking lot charges a basic fee of $2 plus $1 per half-hour parked. Write an equation for the total charge, c,in terms of the number of half-hours parked,h.
Answer:
$1h + $2
Step-by-step explanation:
Shawn bought $45.00 worth of pencils from Office Max. If the sales tax is 4%, what was the amount of tax she had to pay?
Answer:
46.80
Step-by-step explanation:
because 45/4%=1.80 and 45+1.80=46.80
The vertices of AABC are A(2,8), B(16, 2), and C(6, 2). The perimeter of triangleABC Is blank units
Explanation
We are given the following vertices of a triangle:
\(\begin{gathered} A(2,8) \\ B(16,2) \\ C(6,2) \end{gathered}\)We are required to determine the perimeter of the triangle.
This is achieved thus:
We know that the distance between two points is given as:
\(D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)To determine the perimeter of the triangle ABC, we need to determine the distances of AB, AC, and BC.
Therefore, we have:
\(\begin{gathered} A(2,8)\to(x_1,y_1) \\ B(16,2)\to(x_2,y_2) \\ \\ \therefore AB=\sqrt{(16-2)^2+(2-8)^2} \\ AB=\sqrt{(14)^2+(-6)^2} \\ AB=\sqrt{196+36}=\sqrt{232} \\ AB=2\sqrt{58}\approx15.23units \end{gathered}\)\(\begin{gathered} A(2,8) \\ C(6,2) \\ \\ \therefore AC=\sqrt{(6-2)^2+(2-8)^2} \\ AC=\sqrt{(4)^2+(-6)^2} \\ AC=\sqrt{16+36}=\sqrt{52} \\ AC=2\sqrt{13}\approx7.21units \end{gathered}\)\(\begin{gathered} B(16,2)\to(x_1,y_1) \\ C(6,2)\to(x_2,y_2) \\ \\ \therefore BC=\sqrt{(6-16)^2+(2-2)^2} \\ BC=\sqrt{(-10)^2+0^2} \\ BC=\sqrt{100} \\ BC=10units \end{gathered}\)Therefore, the perimeter becomes:
\(\begin{gathered} P=AB+AC+BC \\ P=15.23+7.21+10 \\ P=32.44units \end{gathered}\)Hence, the perimeter is:
\(P=32.44un\imaginaryI ts\)URGENT!
How many 1/3 inch cubes does it take to fill a box with width 2 2/3 inches, length 3 1/3 inches, and height 2 1/3 inches?
Answer:
560/9 cubes
Step-by-step explanation:
How many 1/3 inch cubes does it take to fill a box
the dimension of the box is
width 2 2/3 inches,
length 3 1/3 inches, and
height 2 1/3 inches
The volume of the box is
volume= L*W*H
volume= 3 1/3 * 2 2/3* 2 1/3
converting to proper fraction
volume= 10/3*8/3*7/3
volume= 10*8*7/3*3*3
volume=560/27 in^3
the volume of the cube is 1/3
so the number of cubes will be
=560/27/1/3
=560/27*3
=560/9
Find the missing side. Round to the nearest tenth.
Like what that guy said sorry did not mean to disturb
Johnny have 5 Apples in 6 rows how much apples will he have left
It's not entirely clear what is meant by "5 Apples in 6 rows," so I will provide a general answer that could apply to a few different interpretations of the question.
If Johnny has 5 apples and places them in 6 rows, the answer to how many apples he will have left depends on how many apples are in each row and what Johnny does with them. For example, if he eats one apple from each row, he will be left with 5 - 6 = -1 apples, which doesn't make sense. If instead he rearranges the apples into one row, he will still have 5 apples. If he gives away 2 apples, he will have 3 apples left.
In summary, the number of apples Johnny will have left depends on the details of the scenario, including how many apples are in each row and what Johnny does with them.
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if the sum of two numbers is four and the sum of their squares minus three times their product is 76, find the numbers
Answer:
Numbers =(6,-2 )
Step-by step explanation:
Given
the sum of two numbers is four and the sum of their squares minus three times their product is 76,
Let the first term =X
Second term will be=4-x
So
X^2+(4-x)^2-3x(4-x)=76
x^2+16+x^2-8x-12x+3x^2=76
5x^2-20x+16=76
5x^2-20x-60=0
5(x^2-4x-12)=0
So x^2-4x-12=0
x^2-(6-2)x-12=0
x^2-6x+2x-12=0
X(x-6)+2(x-6)=0
(X-6)(X+2)=0
X=6,-2
Let X=6 and -2 then numbers will be 6 and (4-6)=-2
please help! i’ll give brainliest!
Answer:
x = 1 y = 6
Step-by-step explanation:
x + 2y = 13
-x + y = 5
3y = 18
y = 6
-x + 6 = 5
-x = -1
x = 1
What is the value of this expression? -1/4 - 3/8 - 3/4 - 7/8?
A. 2 1/4
B. 1 3/4
C. -1
D. -2 1/4
The radius of a circle is 1 yard. What is the circle's circumference?
r=1 yd
Use 3.14 for .
The circumference of the circle is 6.28 yards.
What is circumference of the circle?"It is the length of the boundary of the circle."
Formula to calculate the circumference of the circle:C = 2 × π × r, where 'r' is the radius of the circle.
For given example,
r = 1 yd.
π = 3.14
Using the formula for the circumference of circle,
⇒ C = 2 × π × r
⇒ C = 2 × 3.14 × 1
⇒ C = 6.28 yd.
Therefore, the circumference of the circle is 6.28 yards.
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6-4 Additional Practice Proving a Quadrilateral Is a Parallelogram Is there enough information to prove each quadrilateral is a parallelogram? Explain: For what values of and b is each quadrilateral parallelogram? (I2b 26 + 45 2u + 14 Understand Margaret says there is not enough information to show that WXYZ is parallelogram: Explain why Margaret is incorrect: 10. Apply A hazard sign has_ identical parallelogram-shaped stripes as shown: Charles must outline each stripe with reflective tape: Is one roll of 144 inches of tape enough to finish the job? Explain: 6I_3n 6n enVision" Geometry * Teaching Resources'
Margaret is incorrect because the given information does not include enough details to determine if the quadrilateral WXYZ is a parallelogram.
To prove that a quadrilateral is a parallelogram, the four sides must be equal in length and the opposite angles must be congruent. The given information does not include any measurements or angles, so it is not possible to determine if the quadrilateral is a parallelogram.
No, 144 inches of tape is not enough to finish the job. The hazard sign has two identical parallelogram-shaped stripes, and each stripe will require more than 144 inches of tape to outline. The area of a parallelogram can be calculated using the formula A = bh, where b is the base and h is the height. In order to determine how much tape is needed to outline the stripes, the base and height of the parallelograms must be known.
There is not enough information to prove that a quadrilateral is a parallelogram, as all four sides must be equal in length and the opposite angles must be congruent. Additionally, 144 inches of tape is not enough to outline the hazard sign's two identical parallelogram-shaped stripes, as the base and height of the parallelograms must be known in order to calculate the area.
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Which equation represents a line that is perpendicular to y=x?
A.
y=2x
B.
y=−x+6
C.
y=−2x
D.
y=x+1
Answer:
B
Step-by-step explanation:
The general equation of a straight line can be represented as;
y = mx + b
where m is slope
If two lines are perpendicular, the product of their slopes will be -1
So since the slope of the first line is 1, then the slope of the second line will be -1
Out of all the options, only have its slope as -1 and this y = -x + 6 and this is our answer
For the function p(x) = (x - 2)/(sqrt(5 - 2x)) find the domain ?
Mary used the equation 292 = 5h + 192 to determine her
salary at the restaurant last week. Which situation does this
equation best represent?
Answer:
Mary worked 10 hours last week and received $192 in tips for a total income of $292.
Step-by-step explanation:
I don't see any answer options. The best I can assume is that h stands for hours. If so, Mary makes $5/hour. The 1932 doesn't have units, but I'll assume it is $. The $192, I'll guess, is her average weekly tip income. The difference between 292 and 192 is $100, so that would mean Mary worked 20 hours last week. Her tip income is almost double her salary.
Find 90% of 1,000 kilometers.
Answer:
900 kilometers
Step-by-step explanation:
Convert the percentage into a decimal.
90 ÷ 100 = 0.9
Multiply 1000 by 0.9
1000 * 0.9 = 900
let x equals negative 31 times pi over 6 period part a: determine the reference angle of x. (4 points) part b: find the exact values of sin x, tan x, and sec x in simplest form. (6 points)
a) The reference angle of x is π/6.
b) The exact values of sin(x), tan(x), and sec(x) in simplest form are: sin(x) = -1/2, tan(x) = √3/3, sec(x) = -2√3/3.
a) To find the reference angle of x, we need to determine the positive acute angle formed between the terminal side of x and the x-axis. Since x is negative and lies in the fourth quadrant, we can find the reference angle by subtracting the angle's absolute value from 2π. In this case, the angle is π/6, so the reference angle of x is π/6.
b) To find the exact values of sin(x), tan(x), and sec(x), we can use the reference angle we determined in part a. In the fourth quadrant, sin(x) is negative, and we can use the unit circle to find that sin(π/6) = 1/2. Therefore, sin(x) = -1/2.
Similarly, in the fourth quadrant, tan(x) is negative, and we can use the unit circle to find that tan(π/6) = √3/3. Therefore, tan(x) = √3/3.
Lastly, sec(x) is the reciprocal of cos(x). In the fourth quadrant, cos(x) is negative, and we can use the unit circle to find that cos(π/6) = √3/2. Therefore, sec(x) = 1/cos(x) = 1/(√3/2) = 2/√3 = -2√3/3.
In summary, the reference angle of x is π/6, and the exact values of sin(x), tan(x), and sec(x) in simplest form are sin(x) = -1/2, tan(x) = √3/3, and sec(x) = -2√3/3.
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8. (8 points) Solve the following system of linear equations. 2x - 5y + z = -9 x + 4y - 6z = 2 3x – 4y – 2z = -10
Therefore, the solution to the given system of linear equations is: x = 2y - 4 = 2(5/3) - 4 = -2/3 y = 5/3 z = 8/3
The given system of linear equations is, 2x - 5y + z = -9 (i) x + 4y - 6z = 2 (ii)
3x - 4y - 2z = -10 (iii)
Let's solve this system using the elimination method. From equations (i) and (iii), we have:
2x - 5y + z = -9 ........(i)
3x - 4y - 2z = -10.......(iii)
We can eliminate z from these equations by multiplying equation (i) by 2 and adding it to equation (iii) as shown:4x - 10y + 2z = -18 (2i)3x - 4y - 2z = -10........(iii)
7x - 14y = -28............(iv)
Divide equation (iv) by 7, and we get
x - 2y = -4....................(v)
Now let's eliminate z from equations (ii) and (iii). We can do this by multiplying equation (ii) by 2 and adding it to equation (iii) as shown:
x + 4y - 6z = 2.......(ii)
3x - 4y - 2z = -10.......(iii)
2x + 8y - 12z = 4.......(ii)
3x - 4y - 2z = -10.......(iii)
5x + 4y - 14z = -6.......(vi)
Now, let's eliminate y from equations (v) and (vi). To do this, we can multiply equation (v) by 4 and add it to equation (vi) as shown:
4x - 8y = -16..........(v)
5x + 4y - 14z = -6.......(vi)
9x - 14z = -22.........(vii)
We can now solve for z by substituting equation (vii) into equation (iv). Therefore:
9x - 14z = -22 (vii)
x - 2y = -4 (v)
Solve equation (v) for x as follows:x = 2y - 4Substitute this into equation (vii) to get:
9(2y - 4) - 14z = -22
Simplify and solve for z as follows:
18y - 36 - 14z = -22 18y - 14z = 14 9y - 7z = 7
Now, we can substitute the values we have obtained for x and z into equation (ii) to solve for y as follows:
x + 4y - 6z = 2 (ii)2y - 4 + 4y - 6z = 2 6y - 7z = 3 6y - 7(1) = 3 6y - 7 = 3 6y = 10 y = 5/3
Now we can substitute x = 2y - 4 and y = 5/3 into any of the three original equations to solve for z. Using equation (i), we get:
2x - 5y + z = -9 2(2y - 4) - 5y + z = -9 4y - 8 - 5y + z = -9 -y + z = 1 z = y + 1 = 5/3 + 1 = 8/3.
Hence, the main answer is
x = -2/3, y = 5/3, z = 8/3.
Therefore, the solution to the given system of linear equations is: x = 2y - 4 = 2(5/3) - 4 = -2/3 y = 5/3 z = 8/3.
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URGENT MATH. WITH SHOW WORK
Answer:
6:5
I guess that's the answer because 2*3/5
The top graph represents f(x)
which graph best represents f(-x)?
please help i will make you brainliest!!
Answer:
4
Step-by-step explanation:
Replacing x with -x mirrors the graph compared to the y-axis. options 2 and 3 are out. The two viable options are 1 and 4. I lean towards option 4 since mirroring the graph does not affect its concavity and #1 changes it
7400 at 10.5 for 1/4 years
Thus, the simple interest earned on the sum of $7400 is found as: SI = $194.25.
Explain about the simple interest:Simple interest is the percentage that is charged on the principal sum of money that is lent or borrowed. Similar to this, when you deposit a particular amount in a bank, you can also earn interest. The concept of simple interest is widely used in many industries, including banking, mortgages, autos, and other financial institutions.
Given data:
Principal P = $7400rate of Interest R = 10.5%Time T = 1/4 = 0.25 years.Formula for the simple interest:
SI = PRT / 100
SI = 7400* 10.5*0.25 / 100
SI = 19425 / 100
SI = 194.25
Thus, the simple interest earned on the sum of $7400 is found as: SI = $194.25.
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Complete question:
Find the simple interest for the sum of $7400 at rate of interest of 10.5% for period of 1/4 years.
how many hours will it take me to get 777,777,777 cookies if i get 266,560 cookies per second
Answer:
approximately 43 - 44 minutes exact
Answer:
It would take you 2917 hours.
Step-by-step explanation:
Do 777,777,777 divided by 266,560.
2917 (with a a lot of other numbers).I hope this helped at all.