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Related Questions
When drawn on a coordinate plane with the x-axis as the baseline, a wave with a crest that is closer to the baseline has a smaller _____.(1 point)
Responses
frequency
equilibrium
amplitude
wavelength
Answers
Answer:frequency
Step-by-step explanation:
3. Solve using synthetic division,
(x²+3)+(x-1)
A. X+1, R4
B. X+1, R2
C. X+1, R1
D. X+1, R3
Answers
X+1, R2 is the synthetic division of (x²+3)+(x-1) by In the divisor x + 5, change the constant's sign from 5 to -5 and bring it down.
what is equation ?The number is said to be in variables its simplest form being divided in it's smallest equivalent fraction. When or how to find the most basic form. Look for common factors throughout the denominator and numerators. Verify a fractional integer to verify if it qualifies as a prime number. A statement having two orthogonal axes and even an equal sign in the middle is called an equation in mathematics. The general form of any equation provides the degrees of all the in descending order. The conventional form of a linear equation is an x + b = 0. The general form of a linear equation with two variables is an x + b y + c = 0. (or something similar). Equations can be categorized as assumptions or conditional equation.
given
(x²+3)+(x-1)
2x+3 / x = 1
X+1, R2 is the synthetic division of (x²+3)+(x-1) by In the divisor x + 5, change the constant's sign from 5 to -5 and bring it down.
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Functions K and H are both linear functions.
Function K y= 1/2x+2
Function H
x -2 1 5 8
y 0 4.5 10.5 15
Which of the statements comparing the two functions is true?
A)The slope of function K is greater than the slope of function H.
B)The y-intercept of function K is greater than the y-intercept of function H.
C) The slope of function K is equal to the slope of function H.
D) The y-intercept of function K is less than the y-intercept of function H.
Answers
On solving the provided question, we can say that the statement that is true is D) The y-intercept of function K is less than the y-intercept of function H.
what is function?Mathematicians study numbers and their variations, equations and related structures, shapes and their places, and potential placements for these things. The term "function" refers to the relationship between a set of inputs, of which each has an associated output. An relationship of inputs and outputs known as a function is one in which each input leads to a single, distinct output. Each function is given a domain or a codomain, or scope. The letter f is frequently used to indicate functions (x). Entry is an x. The four major kinds of accessible functions are on functions, one-to-one capabilities, so several capabilities, in capabilities, and on functions.
Function K is given as y = 1/2x + 2, so the slope of K is 1/2 and the y-intercept of K is 2.
To find the slope and y-intercept of function H, we can use the given points (x,y):
When x = -2, y = 0, so we have the point (-2,0)
When x = 1, y = 4.5, so we have the point (1,4.5)
When x = 5, y = 10.5, so we have the point (5,10.5)
When x = 8, y = 15, so we have the point (8,15)
We can use two of these points to find the slope of H:
slope = (change in y) / (change in x) = (10.5 - 4.5) / (5 - 1) = 6/4 = 3/2
To find the y-intercept of H, we can use the point (0,b) where x = 0:
b = y - mx = 4.5 - (3/2)(1) = 3
So the equation for function H is y = (3/2)x + 3, which has a slope of 3/2 and a y-intercept of 3.
Now we can compare the two functions:
A) The slope of function K is greater than the slope of function H. False, since 1/2 < 3/2.
B) The y-intercept of function K is greater than the y-intercept of function H. False, since 2 < 3.
C) The slope of function K is equal to the slope of function H. False, since 1/2 ≠ 3/2.
D) The y-intercept of function K is less than the y-intercept of function H. True, since 2 < 3.
Therefore, the statement that is true is D) The y-intercept of function K is less than the y-intercept of function H.
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A coin that lands on heads with probability p is continually flipped. Compute the expected number of flips X that are made until a string of r heads in a row is obtained. (string of r heads means a successive sequence of r heads. For example, if r = 2 and you flipped the coins such that you obtained HTHTHHTTHHH, then X=6) Hint: Condition on the time of the first occurrence of tails to obtain the equation E[X] = (1-p) ∑ Pi-1(I + E[X]) + (1-P) ∑ Pi-1r
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The expected number of flips to get a string of r heads in a row, given that the probability of getting heads in each flip is p.
What do you mean by probability?Probability is a scale between 0 and 1 that represents the possibility of an event happening. An event with probability 1 is guaranteed to happen, while an event with probability 0 is impossible. The number of favorable outcomes divided by the total number of potential outcomes in the sample space yields the probability of an event A, commonly denoted as P(A). The sample space, for a fair six-sided die, is the set of all potential outcomes, such as 1, 2, 3, 4, 5, and 6. The probability of rolling a 4 is 1/6. Numerous disciplines employ probability to make predictions, deduce conclusions, and make judgments in the face of uncertainty.
We can use a recursive formula to find the expected number of flips X.
Let X_i be the expected number of flips to get a string of r heads in a row, starting from the i-th flip. Then, X_i can be expressed in terms of X_{i+1}:
X_i = (1 - p) + p(1 + X_{i+1})
Here, (1 - p) represents the case where the i-th flip results in tails, and p(1 + X_{i+1}) represents the case where the i-th flip results in heads and we have to continue flipping until we get a string of r heads in a row.
To find the expected number of flips X, we need to sum over all X_i, starting from the first flip:
E[X] = X_1 = (1 - p) + p(1 + E[X])
Solving for E[X], we get:
E[X] = 1/(1 - p)
This formula gives us the expected number of flips to get a string of r heads in a row, given that the probability of getting heads in each flip is p.
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For a project in his Geometry class, Amadou uses a mirror on the ground to measure the height of his school building. He walks a distance of 11.15 meters from the building, then places a mirror flat on the ground, marked with an X at the center. He then walks 1.05 more meters past the mirror, so that when he turns around and looks down at the mirror, he can see the top of the school clearly marked in the X. His partner measures the distance from his eyes to the ground to be 1.25 meters. How tall is the school? Round your answer to the nearest hundredth of a meter
Answers
The height of the school is 13.27 m.
What is a triangle?It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.
We have.
From the information given, we can draw the figure given below,
Now,
Triangle ABC and Triangle DCE are similar.
So,
x / 1.25 = 11.15 / 1.05
x = (11.15 x 1.25) / 1.05
x = 13.27 m
Thus,
The height of the school is 13.27 m.
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Find the area of the circle, given the square has an area of 144 cm^2. Leave your answer in terms of pi.
A) 36pi cm^2
B) 24pi cm^2
C) 144pi cm^2
Answers
In the figure the area of circle is obtained as option C: 144π cm².
What is area?
An object's area is how much space it takes up in two dimensions. It is the measurement of the quantity of unit squares that completely cover the surface of a closed figure.
The area of the square is = 144 cm².
The formula for area of square is - (side)²
The equation is -
Area = (side)²
Substitute the value into the equation -
144 = (side)²
side = √144
side = 12 cm
The side of the square is the radius of the circle.
The area of circle is given as -
Area = πr²
Substitute the value into the equation -
Area = π(12)²
Area = 144π cm²
Therefore, the area of circle is 144π cm².
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Answer the questions below
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A two-column table to prove that the triangles formed by the vertical support beam are congruent, (ΔAXB ≅ Δ(CXB) is presented as follows;
[tex]{}[/tex] Statement Reasons
1. [tex]\overline{BX}[/tex] ⊥ [tex]\overline{AC}[/tex]; AB = CB [tex]{}[/tex] Given
2. m∠BXA = m∠BXC = 90°[tex]{}[/tex] Definition of ⊥ segments
3. ΔABC is an isosceles triangle [tex]{}[/tex] Definition
4. ∠BAC ≅ ∠BCA [tex]{}[/tex] Base angles of an isosceles Δ
5. ΔAXB ≅ ΔCXB [tex]{}[/tex] SAA congruence postulate
What are congruent triangles?An indication that two triangles are congruent is if the corresponding sides on each of the triangles are congruent.
The details of the reasons used to prove that the triangles ΔAXB and ΔCXB are congruent, are presented as follows;
[tex]\overline{BX}[/tex] ⊥ [tex]\overline{AC}[/tex]; Perpendicular segments
Two segments are perpendicular if they intersect at right angles, such that the angles formed by the intersection of the segments are 90° angles
Isosceles triangles
An isosceles triangle is a triangle that has a pair of congruent sides (sides of the same length)
Base angles of an isosceles triangle are congruent
The sides of the same length in an isosceles triangle, according to the angle side relationship theorem, the angle opposite the congruent sides of an isosceles triangle which are the base angles of the triangle are congruent.
SAA congruence postulate
The Side-Angle-Angle, SAA, congruence postulate states that if in a triangle, two angles and a non included side are congruent to two angles and a non included side of another triangle, then the two triangles are congruent
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When purchasing a sale item, if you take the 20% discount first, then add the 10% tax, the cost of the item will be the same as when you add the 10% tax first, then take the 20% discount.
Answers
Answer:
80+90
add them together
=170
10% of 170
=17
20-17=3
Determine whether the stochastic matrix P is regular. p= | 0.5 0.1 || 0.5 0.9 |Find the steady state matrix x of the Markov chain with matrix of transition probabilities P. (If the system has an infinite number of solutions, express X1, and x2 in terms of the parameter t.)
Answers
The consistent state lattice x is equivalent to (0.6, 0.9), and the stochastic matrix P is normal.
To decide if a stochastic grid P is standard, we should initially compute the consistent state matrix x of the Markov chain with a matrix of change probabilities P. To do this, we set up the situation Px = x and address for x.
We can communicate the components of x as far as a boundary t as follows:
x1= 0.5t + 0.1
x2= 0.5t + 0.9
We can then settle for t in view of the amount of x1 and x2. The amount of x1 and x2 ought to be equivalent to 1, so:
0.5t + 0.1 + 0.5t + 0.9 = 1
t = 1
Therefore, The consistent state lattice x is equivalent to (0.6, 0.9).
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Four friends A, B, C and D live in a same locality. The house of B is in the east of A's house but in the north of C's house. The house of C is in the west of D's house. D's house is in which direction of A's house?a. South-Eastb. North-Eastc. Eastd. Data is Inadequate
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d. Data is inadequate as it is not possible to determine the direction of D's house relative to A's house.
What is the directions?Directions refer to the relative positions of objects or locations in space. It describes the orientation and location of an object in relation to another object or a reference point.
Based on the information given, . Further information is needed to determine the direction.
Hence, d. Data is inadequate
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What type of number is 0/2
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Answer:this is a rational number
Step-by-step explanation:
The number zero can be written as 0 ÷ any non-zero integer. For example, the rational numbers 0/1 and 0/(-2) are equal to 0. This is in the form of p/q, where p and q are integers and q ≠ 0.
help please asap! ill mark brainlist
Answers
First triangle x = 30
Second triangle N = 55
N would equal to 55 on the second triangle
show whether or not the set of remainders z18 forms a group with the modulo addition operator. then show whether or not z18 forms a group with the modulo multiplication operator
Answers
Z18 with modulo addition satisfies all four group axioms and is a group.
Z18 with modulo multiplication does not satisfy the inverse axiom and is not a group.
what is the binary operation?
In mathematics, a binary operation is a function that takes two elements from a set and returns another element from the same set.
For a set to form a group with a binary operation, the set must satisfy the four group axioms: closure, associativity, identity, and inverse.
1. Z18 with modulo addition:
The set of remainders Z18 = {0, 1, 2, ..., 17} forms a group with the modulo addition operator.Closure: For any two elements a, b in Z18, their sum (a + b) is also in Z18. This is because modulo addition is performed by taking the sum of two numbers, dividing by 18, and taking the remainder, which will always be in the set Z18.Associativity: For any elements a, b, c in Z18, (a + b) + c = a + (b + c).Identity: There exists an element 0 in Z18 such that a + 0 = a for all elements a in Z18.Inverse: For every element a in Z18, there exists an element b in Z18 such that a + b = 0.Hence, Z18 with modulo addition satisfies all four group axioms and is a group.
2. Z18 with modulo multiplication:
The set of remainders Z18 = {0, 1, 2, ..., 17} does not form a group with the modulo multiplication operator.Closure: For any two elements a, b in Z18, their product (a * b) is also in Z18.Associativity: For any elements a, b, c in Z18, (a * b) * c = a * (b * c).Identity: There exists an element 1 in Z18 such that a * 1 = a for all elements a in Z18.Inverse: For every non-zero element a in Z18, there does not exist an element b in Z18 such that a * b = 1. This is because the modulo multiplication operator only returns values that are between 0 and 17, and not all elements in Z18 have a multiplicative inverse modulo 18.Hence, Z18 with modulo multiplication does not satisfy the inverse axiom and is not a group.
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Find the exact value of sin(2x) if sin(x)=-1/2.
Answers
Answer: The value of sin(2x) can be found using the identity:
sin(2x) = 2sin(x)cos(x)
Since sin(x) = -1/2, we can use the Pythagorean identity to find the value of cos(x):
cos^2(x) + sin^2(x) = 1
So
cos^2(x) = 1 - sin^2(x) = 1 - (-1/2)^2 = 1 - 1/4 = 3/4
Taking the square root of both sides:
cos(x) = ± sqrt(3)/2
Since sin(x) is negative and cos(x) must be positive, we get:
cos(x) = sqrt(3)/2
Finally, substituting the values of sin(x) and cos(x) into the formula for sin(2x), we get:
sin(2x) = 2sin(x)cos(x) = 2 * (-1/2) * sqrt(3)/2 = -sqrt(3)
So the exact value of sin(2x) is -√(3).
Step-by-step explanation:
Question: The pages of a book are numbered consecutively, beginning with 1. The digit 7 is
printed 25 times in numbering the pages. What is the largest number of pages the
book can have?
Answers
Answer:
975
Step-by-step explanation:
The largest number of pages the book can have is 975 because the maximum number of times the digit 7 can appear in the page numbers is 25. The maximum number of pages is obtained when the page numbers range from 100 to 999, inclusive, which would result in the digit 7 appearing 25 times.
Two trains leave towns 855 miles apart at the same time and travel toward each other. One train travels 13 mi/h slower than the other. If they meet in 5 hours, what is the rate of each train?
Answers
The velocity of the two trains are 79m/s and 66m/s
What is velocity?Velocity is the rate of change of displacement with time. It is a vector quantity and it is measured in meter per second.
Using addition of vectors:
The total displacement = d2-d1
displacement = velocity × time
Represent the velocity of faster train by v
therefore the velocity of the slower train = v -13
855 = 5v +5(v-13)
855 = 5v+5v+65
855 = 10v +65
10v = 855-65
10v = 790
v = 790/10
v = 79 m/s
the rate of the second train = 79-13 = 66m/s
therefore the rate of the two trains are 79m/s and 66m/s
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Which one of the following shaded-regions in the plane consists of all points whose polar coordinates satisfy the inequalities 0
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the following shaded-regions in the plane consists of all points whose polar coordinates satisfy the inequalities 0 ≤ r ≤ 3 and π/6 ≤ θ ≤ π/12.
What is polar co-ordinates?It is referred to as a polar coordinate system when each point on a plane in a two-dimensional coordinate system is determined by a distance from a reference point and an angle measured from a reference direction. Pole: The object of comparison. The term "polar coordinates" refers to these new coordinates since you interpret the axes' intersection as a pole from which all other points radiate outward. change (degrees are measured in radians) (degrees are measured in radians).
Given that,
0 ≤ r ≤ 3
and π/6 ≤ θ ≤ π/12
In the given condition we can clearly see that the radius is not equal to 3 but it is less than 3. Thus graph number 1, 2, 4 and 6 do not match the given condition.
Now in the given condition 0 ≤ r ≤ 3 the angle is between 30° to 105°
In the graph number 3 radius varies from 0 ≤ r ≤ 3 but angle varies from 75° to 150°, so it is also incorrect.
Thus in the remaining graph number 5, the radius varies from 0 and angle also varies from 30° to 105°.
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The complete question is as follows:
Research has found that people are happiest when they have _____ hours a day of face-to-face contact with others. 3. 6. 1. 9.
Answers
Research has found that people are happiest when they have 6 hours a day of face-to-face contact with others.
What is an experiment ?
A method used in a controlled environment to find an unknown effect or law, test or establish a hypothesis, or provide an example of an established law
In the scenario described, individuals are chosen at random to participate in a new intervention, which appears to be an example of an experiment.
Research has found that people are happiest when they have 6 hours a day of face-to-face contact with others.
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Research has found that people are happiest when they have 6 hours a day of face-to-face contact with others.
What is an experiment ?
A method used in a controlled environment to find an unknown effect or law, test or establish a hypothesis, or provide an example of an established law
In the scenario described, individuals are chosen at random to participate in a new intervention, which appears to be an example of an experiment.
Research has found that people are happiest when they have 6 hours a day of face-to-face contact with others.
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A function f(x) is said to have a jump……
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A function f(x) is said to have a jump discontinuity at x = a if:
3. The left and right limits are not equal.
The function has a jump discontinuity at x = 6 because:
lim x -> 6^- f(x) = 17.lim x -> 6^+ f(x) = 2/13.The different lateral limits are the reason given for the jump discontinuity, as shown in the graph presented at the end of the answer.
What is the continuity concept?A function f(x) is continuous at x = a if it is defined at x = a, and the lateral limits are equal, that is:
[tex]\lim_{x \rightarrow a^-} f(x) = \lim_{x \rightarrow a^+} f(x) = f(a)[/tex]
If the lateral limits are different, the limit does not exist and the function is not continuous at x = a, being said to have a jump discontinuity.
The function has a jump discontinuity at x = 6 because:
lim x -> 6^- f(x)= 4(6) - 7 = 17. (left of 6 is less than 6).lim x -> 6^+ f(x) = 2/(6 + 7) = 2/13. (right of 6 is more than 6).More can be learned about the continuity of a function at https://brainly.com/question/24637240
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The diagonals of rectangle abcd intersect at point e. If ae = 2x + 5, and bd = 5x + 2, what is ac?.
Answers
As per the intersecting point, the length of AC is 4x + 10.
The diagonals of a rectangle are two lines that intersect at the midpoint of the rectangle. In this case, the diagonals of rectangle ABCD intersect at point E.
If AE = 2x + 5 and BD = 5x + 2, then we can calculate the length of AC. We know that AC is the sum of AE and ED, so AC = AE + ED.
Since the diagonals of a rectangle intersect at the midpoint of the rectangle, AE and ED are equal. Therefore, AC = 2x + 5 + (2x + 5) = 4x + 10.
Therefore, the length of AC is 4x + 10. Knowing the lengths of the diagonals can help us find the length of the sides of the rectangle, and can also be useful in finding the area of the rectangle
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Sean rented an SUV for 2 days and drove it 430 miles. The daily rate was $46.9 $0.35 per mile with the first 50 miles being free. How much was the total cost?
Answers
The total cost for the rental is calculated by subtracting the first 50 miles from the total miles driven (430 miles) and then multiplying it by the per mile rate ($0.35/mile).
What is miles ?Miles is a unit of distance measurement. It is used for measuring the distance between two places. It is equivalent to 1.609 kilometers. Miles are used for measuring the length of roads, flight distances, distances between cities, and other large distances. Miles can also be used to measure the length of running, swimming, and cycling events. Miles are also used in the United States to measure the speed of vehicles, such as cars and airplanes.
This gives us a total cost of $118.50 for the miles driven. To calculate the total cost for the rental, we add the cost for the miles driven ($118.50) to the daily rate for the 2 days ($46.90 x 2 days = $93.80). This gives us a total cost of $212.30 for the rental.
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Enlarge shape A by scale factor 2 with centre of enlargement (1, 4).
What are the coordinates of the vertices of the image?
Answers
Answer:
hacunamatata
Step-by-step explanation:
it means no worrys
please i really need help
here is the picture
step by step
Answers
If you want me to explain more just comment and I’ll try my best
Carlos deposited 140 dollars into his savings account.
Write a signed number to represent this change in his account.
Answers
Answer:
Carlos deposited $140 into his savings account, which can be represented by the signed number +140.
Step-by-step explanation:
This indicates an increase in his account balance of $140.
suppose that the function h is defined as follows.
(pic attached)
Answers
The graph of the function h is added as an attachment
How to determine the graph of the functionFrom the question, we have the following parameters that can be used in our computation:
Suppose that the function h is defined as follows.
h(x) = -1 if -2.5 < x ≤ -1.5
0 if -1.5 < x ≤ -0.5
1 if -0.5 < x ≤ 0.5
2 if 0.5 ≤ x < 1.5
3 if 1.5 ≤ x < 2.5
The above function is a piecewise function
Next, we graph the individual functions in the function h according to their domain
See attachment for the graph of h
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Indicate whether the following sets are equal.
A = {x, j, a, m} and D = {x, a, b, y}
Answers
The two sets A = {x, j, a, m} and D = {x, a, b, y} are not equal.
What does the example set?
A set is a logically arranged group of items that can be represented in either set-builder form or roster form in mathematics.
Sets are typically shown using curly brackets; for instance, A = 1, 2, 3, 4 is a set.
The given two sets are
A = {x, j, a, m} and D = {x, a, b, y}
By definition,
The two sets A and B are equal sets if they contain the same elements.
Here, j, m and b, y are different in two sets.
Thus, The set A and D does not contain the same elements.
Therefore, The two sets A = {x, j, a, m} and D = {x, a, b, y} are not equal.
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Jack lives in a house worth $172000 and pays $13760 in taxes. Write an equation to represent the relationship
Answers
Answer:
House value x Tax rate = Taxes paid
172000 x 0.08 = 13760
Can someone help me find the intervals to where it’s decreasing?
Answers
The intervals at which the parabolic equation from the graph is decreasing is (4, ∞).
Decreasing intervals of a parabolic equation.A parabolic equation is an equation of a curve usually in form of a U-shape when displayed on the graph. In the given diagram, we can use the standard form of a quadratic equation y = ax² + bx + c as the starting point for finding the equation through the three points of the curve.
Using the following points on the curve; (0,-2) (4,6), and (6,4), because these points pass along the x and y-axis of the curve.
Create a system of equations by substituting the x and y values of each point into the standard formula of a quadratic equation to create the three-equation system.
−2 = a(0)² + b(0) + c,
6 = a(4)² + b(4) + c,
4 = a(6)² + b(6) + c
Solve the system of equations to find the values of a, b, and c.
[tex]$$a= - \dfrac{1}{2}$$, b = 4, c = -2[/tex]
Substitute the actual values of a, b, and c into the formula for a quadratic equation to find the resulting equation.
[tex]y = - \dfrac{x^2}{2} + 4x - 2[/tex]
Since we know the resulting equation of the parabola, we can now deduce the intervals at which the parabola is decreasing. As such, the interval at which the parabolic equation is decreasing is (4, ∞)
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Two hikers started at the same location. One
traveled 2 miles east and then 1 mile north. The
other traveled 2 mile west and then 3 miles
south.. At the end of their hikes, how many
miles apart are the two hikers? State the exact
length.
Answers
The first hiker is 2 miles east and 1 mile north of the starting point, so the position can be represented by the coordinate pair (2, 1).
What is the Pythagorean theorem in plain English?
In a right-angled triangle, the square of the hypotenuse side is equal to the sum of the squares of the other two sides, according to Pythagoras's Theorem. The Perpendicular, Base, and Hypotenuse are the names of the three sides of this triangle.
The second hiker is 2 miles west and 3 miles south of the starting point, so the position can be represented by the coordinate pair (-2, -3).
The Pythagorean theorem can be used to calculate the separation between the two points:
d = √((2 - (-2))² + (1 - (-3))² ) = √((2 + 2)² + (1 + 3)²) = √(4² + 4²) = √(16 + 16) = √32
So, the two hikers are approximately 5.66 miles apart.
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2/3 +2/9
2/3
4/9
1/2
8/9