The slope of the line is equal to 1.
What is slope?A line's steepness and direction are measured by the line's slope. Without using a compass, determining the slope of lines can assist in forecasting whether the lines are parallel, perpendicular, or none at all.
As per the given data:
We are given the equation of a line, and we have to find out the slope of the line.
The equation of the line is, y - 4 = x - 2
If any line is written in the slope-intercept form, we can easily identify the slope of the line.
The slope intercept form for a line is y = mx + c
Rearranging the given equation of line in slope-intercept form:
y - 4 = x - 2
y = x - 2 + 4
y = x + 2
Comparing this with y = mx + c, m = 1
The slope of the line is equal to 1.
Hence, The slope of the line is equal to 1.
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18. Factorise y² + 2y - 15.
y² + 2y - 15 = 0
y² + 5y - 3y - 15 = 0
y(y + 5) - 3(y + 5) = 0
(y + 5) (y - 3) = 0
taking (y + 5) = 0 => y = -5
now taking (y - 3) = 0 => y = 3
So, the required factors of the given equation are -5 and 3
Hope it helps...In this exercise we have to factor the equation given in the statement, so we have to:
The factors of the given equation are -5 and 3.
So from the given equation we have that:
\(y^2 + 2y - 15 = 0\\y^2 + 5y - 3y - 15 = 0\\y(y + 5) - 3(y + 5) = 0\\(y + 5) (y - 3) = 0\)
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The base of a right triangle is represented by the expression 3x + 2. The height of the right triangle is represented by 2x + 3. Which expression can be used to represent the area of the triangle?
PLS ANSWER QUICK!! Due in an hour 3
The expression used to represent the area of the triangle is
1/2 * (6x^2 + 13x + 6). The solution has been obtained by using the formula for right-angled triangle.
What is a right-angled triangle?
A triangle is said to be right-angled if one of its angles is 90 degrees. The other two angles add up to 90 degrees. The base of the triangle and perpendicular sides make up the right angle. The hypotenuse, the third side, is the longest of the three sides.
We are given that the base of a right triangle is represented by the expression 3x + 2. and the height of the right triangle is represented by 2x + 3.
We know that area of triangle = 1/2 * base * height
So,
⇒Area = 1/2 * (3x+2) * (2x+3)
⇒Area = 1/2 * (6x^2 + 9x + 4x + 6)
⇒Area = 1/2 * (6x^2 + 13x + 6)
Hence, the expression used to represent the area of the triangle is
1/2 * (6x^2 + 13x + 6).
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help me pls 2mins left
Answer:
(5,1)
Step-by-step explanation:
A function is a set of ordered pairs in which no two different ordered pairs have the same x -coordinate. An equation that produces such a set of ordered pairs defines a function.
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A recent study reported that 60% of the children in a particular community were overwoight or obese. Suppose a random sample of 200 public school children is taken from this community. Assume the sample was taken in such a way that the conditions for using the Central Limit Theorem are met. We are interested in finding the probability that the proportion of overveightfobese children in the sample will be greater than 0.57. Complete parts (a) and (b) below. a. Before doing any calculations, determine whether this probability is greater than 50% or less than 50%. Why? A. The answer should be less than 50%. because 0.57 is less than the population proportion of 0.60 and because the sampling distribution is approximately Normal. B. The answer should be greater than 50%, because the resulting z-score will be positive and the sampling distribution is approximately Normal. C. The answer should be greater than 50%, because 0.57 is less than the population proportion of 0.60 and because the sampling distribution is approximately Normal. 0. The answer should be less than 50%, because the resulting z-score will be negative and the sampling distribution is approximately Normal.
The probability that the proportion of overweight or obese children in the sample will be greater than 0.57 is less than 50%.
The first paragraph summarizes the answer, stating that the probability is less than 50% because 0.57 is less than the population proportion of 0.60, and the sampling distribution is approximately normal.
In the second paragraph, we can explain the reasoning behind this conclusion. The Central Limit Theorem states that for a large sample size, the sampling distribution of the sample proportion will be approximately normal, regardless of the shape of the population distribution. In this case, the sample was taken in a way that meets the conditions for using the Central Limit Theorem.
Since the population proportion of overweight or obese children is 0.60, any sample proportion below this value is more likely to occur. Therefore, the probability of obtaining a sample proportion greater than 0.57 would be less than 50%. This is because the resulting z-score, which measures how many standard deviations the sample proportion is away from the population proportion, would be negative.
To summarize, the probability of the proportion of overweight or obese children in the sample being greater than 0.57 is less than 50% because 0.57 is less than the population proportion of 0.60, and the sampling distribution is approximately normal.
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Can someone answer this question please ASAP
Answer:
x = 2
Step-by-step explanation:
2.85x10^6 / 30000 i need help with that
Answer:
I think its 95. I'm probably wrong
Solve for y -3x-4y=8
Answer:
Step-by-step explanation:
3x + -3x - 4y = 8 - 3x
-4y = 8 - 3x
-----------------
-4
y = 8/-4 + 3/4 x
y = -2 + 3/4x
Answer:
y= -x+ -8/3
Step-by-step explanation:
Let's solve for y.
Step 1: Add 3x to both sides.
Step 2: Divide both sides by -3.
If using the method of completing the square to solve the quadratic equation 2² +14x+3=0, which number would have to be added to "complete the square"?
49 is the amount that would need to be added in order to "complete the square".
Method of completing the square method.Given the quadratic equation below:
x² + 14x + 3=0
In order to complete the square, we will add the square of the half of the coefficient of x to both sides.
Coefficient of x = 14
Half of coefficient of x = 14/2 = 7
Square of the half of coefficient of x = 7²
Square of the half of coefficient of x = 49
Hence the number that would have to be added to "complete the square" is 49.
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write an equation of the line?
slope=3; through (1,5)
plz and ty
Answer: y = 3x + 2
Step-by-step explanation:
we can start the equation as
y = 3x + b
To find b we plug in the points on the equation we already have
5 = 3(1) + b
5 = 3 + b
-3 -3
2 = b
Since b equals 2, the equation will be
y = 3x + 2
Answer:
y - 5 = 3 ( x - 1 ) or y = 3x + 2
Step-by-step explanation:
Which terms could have a greatest common factor of 5m4? Select two options.
a
24mn4
b
m4n4
c
15m2n2
d
5m4n3
e
10m4
Answer:
mag try sa chrome
Step-by-step explanation:
thank you
hope it's help
Simplify the expression:
7(t − 2) =
Answer:
7t-14
Step-by-step explanation:
you have to distribute the 7 into the t and 2 and take the -with the 2
How do you find the x-intercept and point of a quadratic equation?.
Answer:
Step-by-step explanation:
plug in a 0 for y and simplify the equation
because 0*(constant of y)=0, so
x*(constant of x)=something, so
something/(constant of x)=x
ans is (x, 0)
which expression cannot be factored using real numbers?
x^3+1
x^6+8
x^8-2
x^8-1
The quadratic-like polynomial x⁶ + 8 has no real roots, that is, it has two complex roots. (Correct choice: B)
What polynomial cannot be factored using real numbers?
In this problem we must determine what polynomial has no real roots. From real algebra we remember that any polynomial of the form x²ⁿ + a², where a is a positive real number, has no real numbers. That is, the factor form of the polynomial is shown below:
(xⁿ + i a) · (xⁿ - i a)
In other words, any polynomial of the form x²ⁿ + a², a > 0, has two complex roots. Now, by direct comparison, we conclude that polynomial x⁶ + 8 has no real roots.
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18. i have the answeres but i am not sure
Restaurant bill: $35.00
Tip 20%, Final Amount?
Answer: 42$
Step-by-step explanation: 35.00+20%=42$
The sampling distribution is based on the assumption that the _____ hypothesis is _____.
Answer:
NULL ; TRUE
Step-by-step explanation:
The sampling distribution is on the assumption that the null hypothesis is true .
The null hypothesis is a general statement that states that there
is no relationship between two phenomenon's under
consideration or that there is no association between two groups.
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The sampling distribution is based on the assumption that the null hypothesis is TRUE.
A sampling distribution is a statistical probability distribution obtained from a large number of samples from a given population. In statistics, the population is the entire pool from which statistical samples are drawn. A population can refer to an entire group of people, things, events, visits, or measurements. A sampling distribution is the probability distribution of a statistic obtained by repeatedly sampling a specified population describes a set of possible outcomes for statistics, such as: B. Mean or mode of a population variable.A null hypothesis is a general statement that something is. There is no relationship between the two phenomena under or consider that there is no relationship between the two groups.
The sampling distribution is based on the assumption that the null hypothesis is TRUE.
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During a walk, walkers discover a car that has fallen to the bottom of a 20m high vertical cliff. It is 10m from the foot of the cliff. The police investigation reveals that the braking marks (perpendicular to the edge) start at 7.5m from the upper (horizontal) edge of the cliff and that the acceleration (braking!) was -5m/s. The chief sergeant concludes an accident. Calculate the speed of the car before the start of braking and the duration of the driver's anxiety (braking & fall).After the calculation, I got t1 from cliff = 2 sec, I got the Vf from the baking = 5m/s, I need to find V0 before baking (using this formula = d=v0t+1/2at^2),
Given, Height of the cliff = 20 m Distance of the car from the foot of the cliff = 10 m.
The time taken by the car to fall from the cliff can be found using the formula:
\(`h = (1/2) g t^2`\)
Where h is the height of the cliff, g is the acceleration due to gravity and t is the time taken by the car to fall from the cliff.
Substituting the given values,`20 = (1/2) × 9.8 × t^2`
Solving for t, `t = sqrt(20/4.9)` = 2.02 s
Let the initial velocity of the car be V0 and the time taken for the car to come to rest after applying brakes be t1.
Distance covered by the car before coming to rest can be found using the formula: `\(s = V0t1 + (1/2) (-5) t1^2\)`
Where s is the distance covered by the car before coming to rest.
Simplifying the above equation,\(`2.5 = V0 t1 - (5/2) t1^2`\)
Substituting the given values,`5 = V0 - 5 t1`
Solving the above two equations,\(`V0 = 32.5/2 t1`\)
Simplifying the above equation,`V0 = 16.25 t1`
Substituting the value o\(f t1,`V0 = 16.25 × 2` = 32.5 m/s\)
Therefore, the speed of the car before the start of braking is 32.5 m/s.
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What is the answer to this problem ?
Answer: The correct answer is 14.
Step-by-step explanation: We have X and Y together, multiply that and get 10. Then we add Z which is 4 and it gets you 14.
Still helping my lil sister
Answer all three
Answer:
3. D
4. C
5. I don't know sorry
Step-by-step explanation:
Please help me with this homework …
VI. Pretend that you are working for the tourist bureau for your city. Which measure of central tendency (mean, median, mode) would you use in advertising to attract tourists. Justify your answer.
The mean of the data set can be used because it is not easily affected by extreme values.
What is a measure of central tendency?A measure of central tendency is a measure that tries to describe an entire data set by using the central value of the data.
Mean is often used as a measure of central tendency when dealing with a large data such as tourism in the city because it is not easily affected by extreme values.
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AC is a diameter of OE, the area of the
circle is 289 units2, and AB = 16 units.
Find BC and mBC.
B
A
C
E. plssss hurry !!
The measure of arc BC is 720 times the measure of angle BAC.
Given that AC is the diameter of the circle and AB is a chord with a length of 16 units, we need to find BC (the length of the other chord) and mBC (the measure of angle BAC).
To find BC, we can use the property of chords in a circle. If two chords intersect within a circle, the products of their segments are equal. In this case, since AB = BC = 16 units, the product of their segments will be:
AB * BC = AC * CE
16 * BC = 2 * r * CE (AC is the diameter, so its length is twice the radius)
Since the area of the circle is given as 289 square units, we can find the radius (r) using the formula for the area of a circle:
Area = π * r^2
289 = π * r^2
r^2 = 289 / π
r = √(289 / π)
Now, we can substitute the known values into the equation for the product of the segments:
16 * BC = 2 * √(289 / π) * CEBC = (√(289 / π) * CE) / 8
To find mBC, we can use the properties of angles in a circle. The angle subtended by an arc at the center of a circle is double the angle subtended by the same arc at any point on the circumference. Since AC is a diameter, angle BAC is a right angle. Therefore, mBC will be half the measure of the arc BC.
mBC = 0.5 * m(arc BC)
To find the measure of the arc BC, we need to find its length. The length of an arc is determined by the ratio of the arc angle to the total angle of the circle (360 degrees). Since mBC is half the arc angle, we can write:
arc BC = (mBC / 0.5) * 360
arc BC = 720 * mBC
Therefore, the length of the arc BC equals 720 times the length of the angle BAC.
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An equation with an unknown value is shown 13/10 + 2/100= ?/100
Answer:
132/100, or 1.32
Step-by-step explanation:
Just change 13/10 to 130/100 and add 2/100 to make it 132/100, or 1.32 :)
please help with this. it’ll mean so much. it’s for my final gradeee
1) Since the value of y varies directly with x, we can write
y=kx Plugging into that
-8 = k(4)
-8 = 4k Divide both sides by 4
k =-2
2) When x = -4 then we can find y by plugging into that
y = kx
y = (-2)(-4)
y = 8
3) Hence, the answer is 8
please no link because I can't access it when it's sent.please am asking no link
Answer:
x ≈ 1051.368672
Step-by-step explanation for #3:
\(tan(\frac{x}{12}) =24\) Use tangent function because it relates to the opposite and adjacent sides of the triangle.
\(tan^{-1}(tan(\frac{x}{12}))=tan^{-1}(24)\)
\(\frac{x}{12} = tan^{-1}(24)\)
\(x = 12[tan^{-1}(24)]\)
x ≈ 1051.368672
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What is the slope of the line graphed in the picture
Answer:
-1
Step-by-step explanation:
Take the two points
(-2,4) and (4,-2)
And we can find the slope
m = (y2-y1)/(x2-x1)
= (-2-4)/( 4 - -2)
=(-2-4)/(4+2)
= -6/6
= -1
perform the indicated calculation. you may use a calculator. remember to round your answers according to the rules for significant figures. 138.2 km x 3.5 km
The result of Multiplying 138.2 km by 3.5 km is 483.7 km².
To perform the indicated calculation, we need to multiply 138.2 km by 3.5 km.138.2 km x 3.5 km = 483.7 km²
The result of multiplying 138.2 km by 3.5 km is 483.7 km².
When dealing with significant figures, we should consider the least precise measurement involved in the calculation, which in this case is 3.5 km (with two significant figures). Therefore, we should round the answer to the same number of significant figures, resulting in 480 km².
So, rounding according to the rules for significant figures, the result of the calculation 138.2 km x 3.5 km is approximately 480 km².
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what is the value of 7 in 2784
Answer:
Step1
First look at the value for 4 and then rest numbers 1234
Step2
4 is Unit 3 is Tens 2 is Hundred and 1 is Thousand
Step3
So in the question 4 is Unit 8 is Tens 7 is Hundred and 4 is thousand
a least squares regression line . a.may be used to predict a value of y if the corresponding x value is given b.implies a cause-effect relationship between x and y c.can only be determined if a good linear relationship exists between x and y d.is only used for positively correlated data
The least square regression line implies a mathematical equation that models the relationship between the dependent and independent variables. Hence, it may be used to predict a value of y if the corresponding x value is given. The least square regression line also called the best fit line, gives a mathematical relationship between variables in slope-intercept form.The predicted value of y or x if the corresponding value of either variable is given.
what is regression?
A statistical method called regression links a dependent variable to one or more independent (explanatory) variables. A regression model can demonstrate whether changes in one or more of the explanatory variables are related to changes in the dependent variable.
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Wanda, Darren, Beatrice, and Chi are tutors in the school math lab. Their schedule is as follows: Darren works every third school day, Wanda works every fourth school day, Beatrice works every sixth school day, and Chi works every seventh school day. Today they are all working in the math lab. In how many school days from today will they next be together tutoring in the lab?