Answer
1: 3x-y=0
2: 5x+y= -4
3: y=-x+4
Step-by-step explanation:
A fivey sequence is a sequence of positive integers whose terms add up to $5.$ For example, $2, 2, 1$ and $2, 1, 2$ are two different fivey sequences. How many fivey sequences are there?
The number of the arrangement for the five sequences will be 6.
What are permutation and combination?Combination and permutation are two different ways in mathematics to divide up a set of elements into subsets. The subset's components can be listed in any order when combined. The components of the subset are listed in a permutation in a particular order.
Given that a sequence is a sequence of positive integers whose terms add up to $5.$ For example, 2, 2, 1 and 2, 1, 2.
The number of the ways will be calculated as:-
3! = 3 x 2
3! = 6
Hence, the number of the different arrangements for the sum of 5 will be 6.
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Alex has an 80% chance of passing a test. Brad has a 60% chance of passing the test. Work out the probability that Alex and Brad both fail the test
If Alex has an 80% chance of passing a test and Brad has a 60% chance of passing the test ,then the probability that Alex and Broad both fail the test is 0.8 or 8% .
The percent chance that Alex passes the test is = 80% = 0.8 ;
So , probability that Alex fails the test is = 1 - 0.8 = 0.2 ;
the percent chance that Brad passes the test is = 60% = 0.6 ;
So , the probability that Brad fails the test is - 1 - 0.6 = 0.4 ;
we have to find the probability that Alex and Broad both fail the test ,
the required probability of both failing can be found by using formula :
= (probability Alex fails the test) × (probability Brad fails the test)
= 0.2 × 0.4
= 0.8 .
Therefore , the probability that both fail the test is 0.8 or 8% .
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An amusement park is building a new water slide which is supported by beams of 40 feet and 25 feet. To support the weight of the ride effectively, a support beam (EF) needs to be added to hold the guide wires (AC and BD) in place. What will the height of the support beam need to be for this new ride?
As per the formula of area of triangle, the height of the support beam need to be for this new ride is 3.2 feet.
In math the term area is defined as “b” be the base and “h” be the height of a triangle, then the formula to find the area of a triangle is given by. Then the Area of triangle is calculated as,
=> A = (½) b h square units.
Here we have know that an amusement park is building a new water slide which is supported by beams of 40 feet and 25 feet.
Then based on the formula of area of triangle, the height of the support beam need to be for this new ride is calculated as,
=> 40 = 1/2 x 25 x h
=> h = 80/25
=> h = 3.2
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what is D=8 cm and R =4.7 in ,
The circumference of the circles are 25.12 cm and 29.516 in
How to determine the circumference of the circleFrom the question, we have the following parameters that can be used in our computation:
(a) D = 8 cm and (b) R = 4.7 inches
Given the diameter, the circumference is
C = πD
So, we have
C = 3.14 * 8 cm = 25.12 cm
Given the radius, the circumference is
C = 2πR
So, we have
C = 2 * 3.14 * 4.7 in = 29.516 in
Hence, the circumference is 29.516 in
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Complete question
What is the circumference of the circle given its diameter (D) of its radius (R)
(a) D = 8 cm and (b) R = 4.7 inches
WXYZ is a parallelogram. The position vectors of W, X and Y are (2,1), (6,3) and (4,7) respectively. Determine in the form (x,y) the vectors, WX, XY, WZ, OZ
In the parallelogram, the coordinates form of the vectors WX, XY, WZ, OZ are (18,3), (24, 21), (2x, y) and (0,0).
The term coordinate in math is known as the set of values that represents the exact position on the coordinate plane
Here we know that WXYZ is a parallelogram and the position vectors of W, X and Y are (2,1), (6,3) and (4,7) respectively.
Then the value of the coordinate vectors are calculated as,
=> WX = (2,1) x (6,3) = (18, 3)
And the value of XY is calculated as,
=> XY = (6,3) x (4,7) = (24, 21)
And we know that the value of Z is (x, y), then the vector is calculated as,
=> WZ = (2,1) x (x, y) = (2x, y)
Finally the value of OZ is calculated as,
=> OZ =(0,0) x (x , y) = (0, 0)
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2. A child's bank contains $6.30 in dimes and quarters. There are twice as
many dimes as quarters. How many of each kind of coin are in the bank?
The child has 14 quarters and 28 dimes if child's bank contains $6.30 in dimes and quarters.
What is Algebraic expression ?
Algebraic expression can be defined as the combination of variables and constants.
With coin problems you need to keep track of the count of the coins and the value.
d = number of dimes
10d = value of the dimes in cents
q = number of quarters
25q = value of the quarters in cents
10d + 25q = 630 cents
d = 2q
substitute
10(2q) + 25q = 630
20q + 25q = 630
45q = 630
q = 14
d = 2q
d = 2*14 = 28
Check the values to be sure this answer is right.
25(14) = 350 cents
10(28) = 280 cents
total = 630 cents
Therefore, The child has 14 quarters and 28 dimes.
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jose needs 20 1/3 feet of string for a project. he has lengths of string that are 9 1/2 feet, 3 1/4 feet and 4.5 feet long does jose have enough string for his project?
Answer: To check if Jose has enough string for his project, we need to add the lengths of the strings he has and compare it to the amount of string he needs for the project.
The length of the first string is 9 1/2 feet, the second string is 3 1/4 feet and the third string is 4.5 feet.
To add these lengths we need to convert them all to the same unit of measurement.
3 1/4 feet can be converted to 3.25 feet
So the total length of the strings Jose has is 9 1/2 + 3.25 + 4.5 = 17.25 feet
Jose needs 20 1/3 feet of string for his project, and he has 17.25 feet of string.
So he doesn't have enough string for his project.
Step-by-step explanation:
which of the following is equivalent to 0.00648?
What is the midpoint of the line segment with the endpoints J(–9, –4) and K(7, 8)? (–5, –1) (–2, 1) (–1, 2) (3, 5)
Answer:
(-1,2)
Step-by-step explanation:
Recall the midpoint formula:
[tex]\frac{x^1+x^2}{2}[/tex] to solve for the X coordinate and [tex]\frac{y^1+y^2}{2}[/tex] to solve for Y.
Replace the variables with their appropriate numbers.
[tex]X(\frac{-9+7}{2})[/tex] [tex]Y(\frac{-4+8}{2})[/tex]
[tex]X(\frac{-2}{2} )[/tex] [tex]Y(\frac{4}{2} )[/tex]
[tex]X(-1)[/tex] [tex]Y(2)[/tex]
Therefore, the answer is (-1,2)
Use the figure to complete the statement. If not similar choose not similar
Answer:
The answer is side side side (SSS)
Answer:
SSS Similarity
Step-by-step explanation:
121/9 = 8/6 = 16/12
Similar by SSS Similarity
Chef Malik decided to spend the grant money to package and deliver his meals to reach more community members. Each vegetarian meal now costs $2.25 to make and each meat meal now costs $2.75. Chef Malik wants to serve at least 400 meals and spend no more than $800.
A solution for the given system of linear inequalities is the shaded area below the solid line.
How to write and solve the system of inequalities graphically?In order to write a system of linear inequalities to describe this situation, we would assign variables to the cost of vegetarian meal and cost of meat meal, and then translate the word problem into algebraic equation as follows:
Let the variable x represent the cost of vegetarian meal.Let the variable y represent the cost of meat meal.Since each vegetarian meal cost $2.25 to make while each meat meal cost $2.75 and Chef Malik can spend no more than $800, a linear inequality which represents this situation is given by;
2.25x + 2.75y ≤ 800
Additionally, Chef Malik wants to serve at least 400 meals;
x + y ≥ 400
Next, we would use an online graphing calculator to graphically solve the system of linear inequalities.
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Complete Question:
Chef Malik decided to spend the grant money to package and deliver his meals to reach more community members. Each vegetarian meal now costs $2.25 to make and each meat meal now costs $2.75. Chef Malik wants to serve at least 400 meals and spend no more than $800.
Write and solve the system of inequalities graphically.
A researcher observes and records the height of a weight moving up and down on the end of a spring. At the beginning of the observation the weight was at its highest point. From its resting position, it takes 8 seconds for the weight to reach its highest position, fall to its lowest position, and return to its resting position. The difference between the lowest and the highest points is 20 in. Assume the resting position is at y = 0
Assume the resting position is at y=0, so the function is y = 10sin(π/4 x + π/4).
First one the first point will not be on the midline and will be at the maximum height.
In physics, amplitude refers to the greatest displacement or distance that a point on a vibrating body or wave can move relative to its equilibrium location.
amplitude = 10 = A and y = Asin(Bx - C) + D
Time = 8 seconds
B = 2π/time
B = 2π/8
B = π/4
The sine graph is pushed back by π/2 units since the weight is at its maximum position at x = 0; as a result, C = π/2, D = 0 (the midline is y = 0).
y = 10sin(π/4 x + π/4) is the function.
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The complete question is:
A researcher observes and records the height of a weight moving up and down on the end of a spring. At the beginning of the observation the weight was at its highest point. From its resting position, it takes 12 seconds for the weight to reach its highest position, fall to its lowest position, and return to its resting position. The difference between the lowest and the highest points is 10 in. Assume the resting position is at y = 0. Use the sine tool to graph the function. The first point must be on the midline and the second point must be a maximum or minimum value on the graph closest to the first point.
Identify the transformed function that represents f(x) = ln x stretched vertically by a factor of 5, reflected across the x-axis, and shifted by 6 units left.
A. G(x) = -5ln (x - 6)
B. G(x) = 5ln (x + 6)
C. G(x) = -5ln (x + 6)
D. G(x) = 5ln (x - 6)
The function after transformation is G(x) = -5 ln (x+6) is the correct answer.
The correct answer is an option (C)
Here, the function is f(x) = ln x
A function f(x) is stretched vertically by a factor of 5.
As we know for a vertical stretch, we need to multiply the whole function by the factor of stretching.
If the stretching factor is m, then after stretching the function becomes
⇒ m × f(x)
Here, stretching factor m = 5
So the transformed function would be,
G(x) = 5 f(x)
⇒ G(x) = 5 ln x
Now, function is reflected across the x-axis, so the function becomes
⇒ G(x) = -5 ln (x+6)
Then the function is shifted by 6 units left, so after translation the function becomes
⇒ G(x) = -5 ln (x+6)
Thus, we can conclude that the function f(x) = ln x after transformation would be G(x) = -5 ln (x+6) is the correct answer.
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Pleas answer these questions..
Refer to the image attached.
Determine the solutions of the equation. What solution makes sense for the situation?
The dimensions of the rectangle are 8 inches as width and 13 inches as length.
How to calculate the equation?An equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario.
The equation is given as:
x² + 5x - 104.
x² + 13x - 8x - 104
x(x + 13) - 8 (x + 13).
x - 8 = 0
x = 0 + 8
Width = 8
Length = x + 5
= 8 + 5.
= 13
The width is 8 inches and length is 13 inches.
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Determine the solutions of the equation. What solution
makes sense for the situation?
A rectangle has a length that is 5 inches greater than its
width, and its area is 104 square inches. The equation (x
+5)x = 104 represents the situation, where x represents
the width of the rectangle.
(x + 5)x = 104
x2 + 5x - 104 = 0
What are the dimensions of the rectangle?
In the diagram below, (5, 2) is the midpoint of a segment with one endpoint (-1, 8). What is the other endpoint of the segment? Show your work or explain how you find your answer.
The line segment AB has point B(x, y) = (11, - 4) as its other endpoint.
How to determine the coordinates of the missing endpoint of a line segment
Herein we find the case of a line segment, of which the coordinates of its midpoint and one of its endpoints are known. Midpoint and endpoints are related by following expression:
0.5 · A(x, y) + 0.5 · B(x, y) = M(x, y)
Where:
A(x, y), B(x, y) - EndpointsM(x, y) - MidpointIf we know that A(x, y) = (- 1, 8) and M(x, y) = (5, 2), then the coordinates of the other midpoint are:
0.5 · (- 1, 8) + 0.5 · B(x, y) = (5, 2)
(- 1, 8) + B(x, y) = 2 · (5, 2)
(- 1, 8) + B(x, y) = (10, 4)
B(x, y) = (11, - 4)
The point B(x, y) = (11, - 4) is an endpoint of line segment AB.
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how do i find the square root of a circle
Answer: by putting some clothes on
Step-by-step explanation:
comon man put some clothes on man do it for the kids
) in a dinner party 5 different appetizers and 6 different desserts are served. in how many different ways 3 appetizers and 2 desserts can be selected?
If in the party there are 5 different appetizers and 6 different desserts , then the number of different ways the 3 appetizers and 2 desserts can be selected is 150 ways .
the number of different appetizers in dinner party is = 5 ;
the number of different desserts in dinner party is = 6 ;
the number of ways of selecting 3 appetizers from 5 is = ⁵C₃ = 10 ;
number of ways of selecting 2 desserts from 6 is = ⁶C₂ = 15 ;
the number of ways of selecting 3 appetizers and 2 desserts is
= 15 × 10
= 150 ways .
Therefore , 3 appetizers and 2 desserts can be selected in 150 ways .
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a population is a. the collection of all items of interest in a particular study. b. always the same size as the sample. c. the selection of a random sample. d. the same as a sample.'
A population is the entire group of items of interest in a particular study, and it is not necessarily the same size as the sample. It is not the same as a sample, which is a subset of the population chosen for the study.
A population is the complete set of items of interest in a study. It could be people, animals, plants, objects, or anything else being studied. A population can be large or small, and it is not always the same size as the sample. A sample is a subset of the population that is chosen to represent the entire population. It is important to choose a sample that accurately reflects the population. Sampling techniques, such as random sampling, are used to ensure that the sample is representative of the population. Once the sample is chosen, data is collected from the sample to infer information about the population. This data can then be used to draw conclusions about the population as a whole.
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if 750 amounts to 885 in three years at a simple interest, find the rate of interest?
PLEASE ANSWER THE QUESTION ITS URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
The Rate of Interest is 6%.
Step-by-step explanation:
S.I= Amount - Principle
S.I=885-750=135.
Rate= S.I*100/(P*T)
Rate=(135*100)/(750*3)
Rate=6%
Simple Interest:Simple interest is a quick and easy method of calculating the interest charge on a loan.
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I need help with this ASAP! I would really appreciate it.
The correct answer is done by Curran,the equation is an example for Inequality Equations. X = -1\2
What are Inequality Equations?In Algebra, an inequality is a mathematical statement that uses the inequality symbol to illustrate the relationship between two expressions. An inequality symbol has non-equal expressions on both sides. It indicates that the phrase on the left should be bigger or smaller than the expression on the right, or vice versa. Literal inequalities are relationships between two algebraic expressions that are expressed using the inequality symbols.
Examples,
Symbol Name Symbol Example
Not equal ≠ x ≠ 3
Less than (<) x + 7 < √2
Greater than (>) 1 + 10x > 2 + 16x
Less than or equal to (≤) y ≤ 4
Greater than or equal to (≥) -3 - √3x ≥ 10
Let's solve your inequality step-by-step.
−4(x−6)<22
Step 1: Simplify both sides of the inequality.
−4x+24<22
Step 2: Subtract 24 from both sides.
−4x+24−24<22−24
−4x<−2
Step 3: Divide both sides by -4.
−4x/4<= -2/-4x
x-1/2
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Help meeee thx I don’t know how to do this
Answer:
There are 36 pink blocks in the bin
Step-by-step explanation:
[tex]45\% \text{ of } 80 = 0.45(80)= 36[/tex]
A tank can be filled by an inlet pipe in 12 hours and emptied by a drain pipe in 16 hours. How long will it take to fill the tank if both pipes are left open?
It will take 48 hours, to fill the tank if both pipes are left open simultaneously.
We are given the following data -
The time taken to fill the tank by inlet pipe = 12 hrs
so, the rate of filling = 1/12
The time taken to empty the tank by drain pipe = 16 hrs
so, the rate of emptying = - 1/16
Therefore, the total work done by both pipes can be given by the following formula -
(1/rate of filling) + (1/rate of emptying) = (1/rate of net change)
1/12 + (-1/16) = (1/Rn)
Therefore, (1/Rn) = 1/12 - 1/16 = 1/48
To find how long it will take to fill the tank, we need to find the reciprocal of the rate of net change:
1/Rn = 1/(1/48)
Rn = 48
So it will take 48 hours, to fill the tank if both pipes are left open.
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Solve the Logarithmic Equation with Steps Shown:
64^2n-3= 4^2
The logarithmic equation gives the value of n; n = 11/ 6.
What is a logarithmic equation?This is a form of equation which requires the application of one of the laws of logarithm to solve or determine the value of a variable.
To solve the given logarithmic equation, we have the following steps to follow;
64^(2n - 3) = 4^2
4^3(2n - 3) = 4^2
divide the common terms on both sides to have;
3(2n - 3) = 2
6n - 9 = 2
6n = 2 + 9
6n = 11
n = 11/ 6
Therefore on solving the logarithmic equation, the value of n is 11/ 6.
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In the Olympic National Park, there are currently 3310 squirrels,
and the population is increasing at an annual rate of 4%.
a. Write an exponential function to model the squirrel
population in terms of the number of years from now.
b. Explain what each value in the model represents.
Dredict the number of couvrole that will be in the region
I need help with substitution the two parts are 4x+5y=48 and 7x-3y=-10. i need to find x and y
The solution to the simultaneous equation is x = 38 and y = 8
How to determine the valueFrom the information given, we have the equations;
4x+5y=487x-3y=-10From equation (1), make 'x' the subject of formula;
4x = 48 - 5y
Divide both sides by 4
x = 48 - 5y/4
Substitute the value x in equation (2)
7(48 - 5y/4) - 3y = -10
expand the bracket
336 - 35y/4 - 3y = -10
Find the lowest common multiple
336 - 35y - 12y/4 = -10
336 - 47y/4 = -10
cross multiply
336 - 47y = -40
collect like terms
-47y = 376
y = 8
Substitute the value into equation 3
x = 48 - 5(8)/4
x = 48 - 10
x = 38
Hence, the values are 38 and 8
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Find AB… pls help thx
[tex]\textit{midsegment of a trapezoid}\\\\ m=\cfrac{a+b}{2} ~~ \begin{cases} a,b=\stackrel{parallel~sides}{bases~\hfill }\\[-0.5em] \hrulefill\\ a=11.5\\ m=18.7 \end{cases}\implies 18.7=\cfrac{11.5+b}{2} \\\\\\ 37.4=11.5+b\implies 25.9=b=AB[/tex]
Find the indicated real n the root(s) of a. n=9, a=-512
[tex]\sqrt[9]{-512}\qquad \begin{cases} -512=-2\cdot -2\cdot -2\cdot -2\cdot -2\cdot -2\cdot -2\cdot -2\cdot -2\\ \qquad 2^9 \end{cases} \\\\\\ \sqrt[9]{(-2^9)}\implies -2[/tex]
Solve this equation in the
given domain: 0
*give answer in radians*
3 sin (2x-4)=2
There should be 4 answers.
look at attached photo
Answer: 2.294524311274043, 4.294524311274043, 6.294524311274043 and 8.294524311274043 radians.
Step-by-step explanation: We can start by isolating the sin function on one side of the equation:
sin (2x-4) = 2/3
Next, we can use the inverse sine function (sin^-1) to find the value of 2x-4:
2x-4 = sin^-1(2/3)
We know that the domain of the inverse sine function is [-1,1], so the value of 2/3 falls in that range. To find the value of x, we can add 4 to both sides and divide both sides by 2:
x = (sin^-1(2/3) + 4) / 2
The value of sin^-1(2/3) is approximately 0.5890486225480862 radians and that's the first solution in the range [0, pi], and we can add multiples of pi to get the other solutions.
x = (0.5890486225480862 + 4) / 2 = 2.294524311274043 radians (in the range [0, pi])
x = (0.5890486225480862 + 4 + pi) / 2 = 4.294524311274043 radians (in the range [pi, 2pi])
x = (0.5890486225480862 + 4 + 2pi) / 2 = 6.294524311274043 radians (in the range [2pi, 3pi])
x = (0.5890486225480862 + 4 + 3pi) / 2 = 8.294524311274043 radians (in the range [3pi, 4*pi])
So there are four solutions to this equation: 2.294524311274043, 4.294524311274043, 6.294524311274043 and 8.294524311274043 radians.
[tex]3\sin(2x-4)=2\implies \sin(2x-4)=\cfrac{2}{3}\implies 2x-4=\sin^{-1}\left( \cfrac{2}{3} \right) \\\\\\ 2x=\sin^{-1}\left( \cfrac{2}{3} \right)+4\implies x=\cfrac{\sin^{-1}\left( \frac{2}{3} \right)+4}{2} \\\\\\ x=\cfrac{\sin^{-1}\left( \frac{2}{3} \right)}{2}+2\implies x\approx\cfrac{0.73}{2}+2\implies \stackrel{II~Quadrant}{x\approx 2.365}\hspace{5em}\stackrel{III~Quadrant}{\stackrel{\frac{\pi -0.73}{2}+2}{x\approx 3.206}}[/tex]
Need help solving asp
Answer:
89
Step-by-step explanation:
The angles are congruent since they are alternate interior angles of parallel lines cut by a transversal.
30x - 1 = 29x + 2
x = 3
30x - 1 = 30 × 3 - 1 = 89