What method can be used to write the equation of a line in slope-intercept form given two points? Find the slope using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept. Find the slope using the formula m = StartFraction x 2 minus x 1 Over y 2 minus y 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept. Find the y-intercept using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the y-intercept into the equation y = m x + b to find the slope. Find the y-intercept using the formula m = StartFraction x 2 minus x 1 Over y 2 minus y 1 EndFraction, and then substitute one point and the y-intercept into the equation y = m x + b to find the slop
The method that can be used to write the equation of a line in slope-intercept form given two points is A. Find the slope using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept.
How to illustrate the information?It should be noted that the equation of line passing through two point = y = mx + b.
Also, b can find out via putting values of x, y, and m in the equation of the line to get y-intercept.
In this case, the slope of the line will be y2 - y1/x2 - x1.
In conclusion, the correct option is A.
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Laptop computers are measured according to the diagonals of their screens.
8 in.
19 in.
A(n) 19-inch laptop has a screen that is 8 inches tall. How wide is the screen?
Round your approximation to 2 decimal places.
Check the picture below.
Question Factor −12 out of −12x+6.
The factorization of of −12x+6 is 6(-2x + 1).
What is factorization?Factorization simply means writing if a number as a product of several factors. It is also the breaking or the decomposition of an entity.
In this case, -12x + 6 will be illustrated thus. It should be noted that the common factor between the numbers is 6. This will be:
= -12x + 6
= 6(-2x + 1)
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In an effort to link cold environments with hypertension in humans, a preliminary experiment was conducted to investigate the effect of cold on hypertension in rats. Two random samples of 6 rats each were exposed to different environments. One sample of rats was held in a normal environment at 26°C. The other sample was held in a cold 5°C environment. Blood pressures and heart rates were measured for rats for both groups. The blood pressures for the 12 rats are shown in the accompanying table.
a. Do the data provide sufficient evidence that rats exposed to a 5°C environment have a higher mean blood pressure than rats exposed to a 26°C environment? Use α = .05.
b. Evaluate the three conditions required for the test used in part (a).
c. Provide a 95% confidence interval on the difference in the two population means.
a. Null hypothesis (H0) is that the mean blood pressure in rats exposed to a 5°C environment is equal to the mean blood pressure in rats exposed to a 26°C environment.
b. Three conditions required for the test:
Randomization
Independence
Approximately normal distributions
c. The 95% confidence interval on the difference in the two population means is approximately (-7.671, -5.329).
How to calculate the valuea. Null hypothesis (H0): The mean blood pressure in rats exposed to a 5°C environment is equal to the mean blood pressure in rats exposed to a 26°C environment.
Alternative hypothesis (Ha): The mean blood pressure in rats exposed to a 5°C environment is higher than the mean blood pressure in rats exposed to a 26°C environment.
b. Three conditions required for the test:
Randomization: The rats were assigned randomly to the two environments, ensuring that the samples are representative.
Independence: The blood pressures measured in each group are independent of each other.
Approximately normal distributions: Since the sample sizes are small (n < 30), we need to check if the blood pressure data within each group is approximately normally distributed. If not, we may need to rely on the Central Limit Theorem to justify the use of the t-test.
c Confidence interval = (x₁ - x₂) ± t * √[(s₁² / n₁) + (s₂² / n₂)]
(x₁ - x₂) = 128.7 - 135.2 = -6.5
t is the critical value from the t-distribution with α = 0.05 and df = 10. Using a t-table or statistical software, t ≈ 1.812.
s₁ ≈ 2.4
s₂ ≈ 2.2
n₁ = n2 = 6
Substituting the values:
Confidence interval = -6.5 ± 1.812 * √[(2.4² / 6) + (2.2² / 6)]
Confidence interval ≈ -6.5 ± 1.812 * √(1.44/6 + 1.21/6) ≈ -6.5 ± 1.812 * √0.417 ≈ -6.5 ± 1.812 * 0.646 ≈ -6.5 ± 1.171
Therefore, the 95% confidence interval on the difference in the two population means is approximately (-7.671, -5.329).
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Which name best describes the polygon with vertices (0, 0), (4, 8), (12, 8), and (16, 0)? A) Triangle C) Trapezoid B) Square D) Pentagon
Answer:
C) Trapezoid
Step-by-step explanation:
Given
\(A = (0,0)\)
\(B = (4,8)\)
\(C = (12,8)\)
\(D=(16,0)\)
Required
The possible shape
The above are 4 vertices.
Hence, the shape cannot be
(a) Triangle ---- it has 3 vertices
(b) Pentagon ---- it has 5 vertices
Calculate distance AB using distance formula
\(AB = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2\)
Where:
\(A = (0,0)\)
\(B = (4,8)\)
\(AB = \sqrt{(0 - 4)^2 + (0 - 8)^2\)
\(AB = \sqrt{( - 4)^2 + ( - 8)^2\)
\(AB = \sqrt{16+64\)
\(AB = \sqrt{80\)
\(AB = 8.94\)
Calculate distance BC using distance formula
\(BC = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2\)
Where:
\(B = (4,8)\)
\(C = (12,8)\)
\(BC = \sqrt{(4 - 12)^2 + (8 - 8)^2\)
\(BC = \sqrt{(-8)^2 + (0)^2\)
\(BC = \sqrt{64 +0\)
\(BC = \sqrt{64\)
\(BC = 8\)
Since
\(AB \ne BC\)
Then, the polygon is not a square
The last available option is (c) trapezoid
Answer: C. Trapezoid
Step-by-step explanation:
Graph the points and you get a trapezoid!!!
Hope this helps!!!
which time-series model assumes that demand in the next period will be equal to the most recent period’s demand? A) Naïve approach
B) Exponential smoothing approach
C) Moving average approach
The time-series model that assumes that demand in the next period will be equal to the most recent period's demand is A) Naive approach.
What is Naïve approach model?This model is based on the simplest assumption of all, that the next period's demand will be equal to the current period's demand. It is called the naive approach because it assumes no underlying pattern in the data and provides a baseline prediction. The formula for the naive approach is as follows:
y(t) = y(t-1) where y(t) represents the demand in period t and y(t-1) represents the demand in the previous period.
Although this model is simple, it is often used as a benchmark for comparison with more complex models and can provide reasonable results for stable demand patterns.
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GivenAC ⊥ BD , complete the flowchart proof below. Note that the last statement and reason have both been filled in for you. please giving brialist!!!
Answer:
Here you go!!!!! Its correct let me know if you need any more problems for me to try and solve!!!
Step-by-step explanation:
Tim had three toys and Sheila have four toys how many did they have together ?
Answer:
7 toys
Step-by-step explanation:
3+4=7
The measures of the angles of a triangle are shown in the figure below. Solve for x.
23°
(4x+19)
Answer:
x=12degrees
Step-by-step explanation:
1st Angle=23degrees
2nd Angle=(4x+19)
3rd Angle=(In order to find this angle we need to take this angle as angle3)
angle3+90=180
angle3=180-90
angle3=90degrees
Now lets start with the sum
Sum of angles of a triangle=180degrees
23+(4x+19)+90=180
113+(4x+19)=180
(4x+19)=180-113
(4x+19)=67
4x=67-19
4x=48
x=48/4
x=12degrees
Hope this helps you
Let a, b, c, m and n be integers. Prove that if a|b and a|c, the a|(bm + cn)
If a divides b and a divides c, then a divides (bm + cn).
To prove that if a divides b and a divides c, then a divides (bm + cn), we can use the properties of divisibility.
Given:
a|b, which means b is divisible by a.
a|c, which means c is divisible by a.
We want to show that a|(bm + cn), which means (bm + cn) is divisible by a.
By definition, if a divides b, then there exists an integer k₁ such that b = ka. Similarly, if a divides c, there exists an integer k₂ such that c = ka.
Now, let's substitute these expressions into (bm + cn):
(bm + cn) = (ka)m + (ka)n
= kam + kan
= a(km + kn)
We can see that (bm + cn) can be written as a times the integer (km + kn). Since (km + kn) is an integer, this implies that (bm + cn) is divisible by a.
Therefore, if a divides b and a divides c, then a divides (bm + cn).
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Drag expressions to show the steps to create an equivalent expression using only positive exponents. Let g and h be two nonzero numbers. g^-3h
Equivalent expressions are expressions that have the same value.
The equivalent expression of \(g^{-3}h\) is: \(\frac{h}{g^3}\)
The expression is given as;
\(g^{-3}h\)
Apply law of indices to change the exponents
\(g^{-3}h = \frac{1}{g^3}h\)
Express as products
\(g^{-3}h = \frac{1}{g^3} \times h\)
Rewrite as
\(g^{-3}h = \frac{h}{g^3}\)
Hence, the equivalent expression is: \(\frac{h}{g^3}\)
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can someone please help mee ( will give brainliest 20 points!!!)
The piecewise function graphed below is given as follows:
\(f(x) = 3, -4 \leq x \leq -2\)\(f(x) = x + 2, -2 < x \leq 3\)\(f(x) = -1, 3 < x \leq 5\)What is a piecewise function?A piecewise function is a function that has different definitions, depending on the input.
For x between -4 and -2, inclusive, the function is constant at 3, hence the definition is:
\(f(x) = 3, -4 \leq x \leq -2\)
For x greater than -2 until 3, the function is a line with slope 1 and y-intercept 2, hence the definiton is:
\(f(x) = x + 2, -2 < x \leq 3\)
For x greater than 3 until 5, the function is constant at -1, hence the definition is:
\(f(x) = -1, 3 < x \leq 5\)
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lamar built a large wooden storage box. the box was in the shape of a rectangular prism, as shown below. he covered all the sides of the box with special wallpaper that cost a total of . how much did the wallpaper cost per square foot?
Without knowing the total cost of the wallpaper or the dimensions of the rectangular prism, it is not possible to determine the cost of the wallpaper per square foot.
To calculate the cost per square foot, we would need to know the total cost of the wallpaper and the total area covered by the wallpaper. Since we do not have this information, we cannot determine the cost per square foot.
In summary, the cost of the wallpaper per square foot cannot be determined without knowing the total cost of the wallpaper and the dimensions of the rectangular prism that Lamar built.
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PLEASE HELP ASAP IM TIMED!!
What is the standard form of y=2(x-3)(x+5) and show your work
Answer:
o really sis/bro hsgsmhsndjd
pls help me and explain how to do this
The slope of the line is -3/4.
What is a line?
A line is an object in geometry that is indefinitely long and has neither breadth nor depth nor curvature. Since lines can exist in two, three, or higher dimensional environments, they are one-dimensional things. The term "line" can also be used to describe a line segment in daily life that contains two locations that serve as its ends.
The points on the line are (-4, 5), (0,2), (4, -1).
The slope of a line that passes through the points (x₁, y₁) and (x₂, y₂) is (y₂ - y₁)/(x₂ - x₁).
The slope of the line is
(2 - 5)/(0 - (-4)) = -3/4
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Look at the following shapes:
A group of fives shapes. An isosceles trapezoid labeled P, a parallelogram which is not a rectangle or rhombus, labeled Q, a square labeled R, a trapezoid with one vertical side labeled S and a rhombus which is not a square, labeled T.
The shapes were sorted, and Shape R and Shape S were put in the same group.
Which statement shows a rule that could have been used to group these two shapes? (1 point)
a
Shapes without any right angles
b
Shapes with exactly one pair of parallel sides
c
Shapes without parallel line segments
d
Shapes with perpendicular line segments
Shape R and Shape S were put in the same group because they are the shapes with perpendicular line segments. Therefore the correct option is option D.
Shape S, a trapezium with one vertical side, and Shape R, a square, both have perpendicular line segments. All of the sides of a square are perpendicular, while one of the non-parallel sides of a trapezium with a vertical side is perpendicular to the base.
Reasons for ruling out other options
Option A, "Shapes without any right angles," is incorrect because Shape R (a square) has four right angles.
Option B, "Shapes with exactly one pair of parallel sides," is incorrect because Shape S (a trapezoid with one vertical side) has only one pair of parallel sides, while Shape R(a square) has two pairs of parallel sides.
Option C, "Shapes without parallel line segments," is also incorrect because all the other shapes P, Q, and T have parallel line segments.
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how to indicate that a function is non decreasing in the domain
To indicate that a function is non-decreasing in a specific domain, we need to show that the function's values increase or remain the same as the input values increase within that domain. In other words, if we have two input values, say x₁ and x₂, where x₁ < x₂, then the corresponding function values, f(x₁) and f(x₂), should satisfy the condition f(x₁) ≤ f(x₂).
One common way to demonstrate that a function is non-decreasing is by using the derivative. If the derivative of a function is positive or non-negative within a given domain, it indicates that the function is non-decreasing in that domain. Mathematically, we can write this as f'(x) ≥ 0 for all x in the domain.
The derivative of a function represents its rate of change. When the derivative is positive, it means that the function is increasing. When the derivative is zero, it means the function has a constant value. Therefore, if the derivative is non-negative, it means the function is either increasing or remaining constant, indicating a non-decreasing behavior.
Another approach to proving that a function is non-decreasing is by comparing function values directly. We can select any two points within the domain, and by evaluating the function at those points, we can check if the inequality f(x₁) ≤ f(x₂) holds true. If it does, then we can conclude that the function is non-decreasing in that domain.
In summary, to indicate that a function is non-decreasing in a specific domain, we can use the derivative to show that it is positive or non-negative throughout the domain. Alternatively, we can directly compare function values at different points within the domain to demonstrate that the function's values increase or remain the same as the input values increase.
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I need to know what 4,000+200+60 for my iready please
Answer:
4,260
Step-by-step explanation:
4,000+200+60
A town park has two biking trails. Marsh trail is 5 3/10 Miles long . Woodland Trail is 2 4/5 Long. How much longer is Marsh trail than woodland trail?
Answer:
3 1/5 i think srry if im wrong
Step-by-step explanation:
please please jhelp me....
Answer:
2·v - (u + w) = (5, 0, -10)
Step-by-step explanation:
The given values of the vectors are;
u = (2, -1, 3), v = (4, 0, -2), and w = (1, 1, 3)
The required vector is 2·v - (u + w)
2 × v = 2 × (4, 0, -2) = (8, 0, -4)
(u + w) = (2, -1, 3) + (1, 1, 3) = (3, 0, 6)
Therefore;
2·v - (u + w) = (8, 0, -4) - (3, 0, 6) = (5, 0, -10)
2·v - (u + w) = (5, 0, -10)
Please help me with this problem and explain
Answer: 29
It is very simple, just substitute.
x = 9, y = 10
Replace the x and y in the expression to that.
You get: 9 + 10 + 10. Just add and you will get 29.
Answer:
9+10+10=29
Step-by-step explanation:
We know that x=9, so where ever we see x we know it is 9. We also know that y=10, so where ever we see y we know it is 10. So then we just replace the variables with our numbers then just add them. That is I got 9+10+10=29
Hope this helps!
Summary statistics are given for independent simple random samples from two populations. Use the pooled t-test to conduct the required hypothesis test.
x1 = 11.1, s1 = 4.5, n1 = 14, x2 = 17.2, s2 = 4.9, n2 = 17
Perform a two-tailed hypothesis test using a significance level of α = 0.05.
a. Test statistic: t = -3.577
Critical value = ±2.045
Reject H0
b. Test statistic: t = -1.841
Critical value = ±2.045
Do not reject H0
c. Test statistic: t = -3.577
Critical value = ±1.699
Do not reject H0
d. Test statistic: t = -1.841
Critical value = ±1.699
Reject H0
The correct answer is:
b. Test statistic: t = -1.841
Critical value = ±2.045
Do not reject H0
To conduct the hypothesis test using the pooled t-test, we compare the calculated test statistic to the critical value at a significance level of α = 0.05.
Given the following statistics for two independent samples:
Sample 1: x1 = 11.1, s1 = 4.5, n1 = 14
Sample 2: x2 = 17.2, s2 = 4.9, n2 = 17
The pooled t-test assumes that the population variances are equal. We calculate the pooled standard deviation (sp) using the formula:
sp = sqrt(((n1-1)*s1^2 + (n2-1)*s2^2) / (n1 + n2 - 2))
Next, we calculate the test statistic (t) using the formula:
t = (x1 - x2) / (sp * sqrt(1/n1 + 1/n2))
For the given data, the calculated test statistic is t = -3.577.
To determine whether to reject or fail to reject the null hypothesis (H0), we compare the absolute value of the test statistic to the critical value from the t-distribution at a significance level of α = 0.05. In this case, the critical value is ±1.699.
Since the absolute value of the test statistic (-3.577) is greater than the critical value (1.699), we do not reject the null hypothesis (H0). Therefore, the correct answer is c. Test statistic: t = -3.577, Critical value = ±1.699, Do not reject H0.
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volume equals length times width times height v=lwh
solve the equation for l
Answer:
\(\frac{V}{wh}=l\)
Step-by-step explanation:
Equation: \(V=lwh\)
1). \(\frac{V}{wh}=\frac{lwh}{wh}\)
2). \(\frac{V}{wh}=l\)
Evaluate each expression using the following functions. a. f(g(0)) b. g((3)) c. g(g(-1)) d. f(f(2)) f(x)=2-x and g(x)= e. g(f(0)) -2
The value of each expression using the following functions: a. f(g(0)) = 4, b. g(3) = -2, c. g(g(-1)) = -2, d. f(f(2)) = 2, e. g(f(0)) = -2.
To evaluate the given expressions using the functions f(x) = 2 - x and g(x) = -2:
a. f(g(0)):
First, substitute 0 into the function g(x): g(0) = -2
Then, substitute the result into the function f(x): f(-2) = 2 - (-2) = 4
b. g(3):
Simply substitute 3 into the function g(x): g(3) = -2
c. g(g(-1)):
First, substitute -1 into the function g(x): g(-1) = -2
Then, substitute the result into the function g(x) again: g(-2) = -2
d. f(f(2)):
First, substitute 2 into the function f(x): f(2) = 2 - 2 = 0
Then, substitute the result into the function f(x) again: f(0) = 2 - 0 = 2
e. g(f(0)):
First, substitute 0 into the function f(x): f(0) = 2 - 0 = 2
Then, substitute the result into the function g(x): g(2) = -2
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Drake's Drugstore is getting ready for the upcoming summer season. The manager of the store wants to
add lawn chairs to the stock. He asks the buyer to determine the two lowest priced wholesalers of lawn
chairs. The table shows the data that the buyer collects from two wholesalers
Answer:
A) 82.99(p-1) +90.99=C
and
B) 80.99(p-1) + 98.99 = C
plug and chug for p
Step-by-step explanation:
1.tommy made 6 rows of blocks, with each row containing 8 blocks. how many blocks did tommy have altogether? you may use the space below to draw a picture of the problem.
There will be 48 blocks in 6 rows, with 8 blocks in each row.
What is multiplication?Multiplication is one of the four basic mathematical operations of arithmetic, along with addition, subtraction, and division. A product is the outcome of a multiplication operation. In mathematics, multiplying implies adding equal groups. The number of items in the group grows as we multiply. A multiplication issue includes the two elements and the product. Multiplication is a way of calculating the product of two or more integers in mathematics. It is one of the most fundamental mathematical operations that we utilize every day.
Here,
number of rows=6
number of blocks in row=8
total number of blocks,
=6*8
=48
There will be 48 blocks in 6 rows with each row having 8 blocks.
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someone help ASAP !! algebra II
Answer:
C
Step-by-step explanation:
Given y = f(x) then y = f(x + a) is a horizontal translation of f(x)
• If a > 0 then a shift to the left of a units
• If a < 0 then a shift to the right of a units
Thus (x - 5)² is a shift to the right of 5 units
Given y = f(x) then y = f(x) + c is a vertical translation of f(x)
• If c > 0 then a shift up of c units
• If c < 0 then a shift down of c units
Thus
y = (x - 5)² + 6
is the graph of y = x² translated 6 units up and 5 units to the right → C
Using the Binomial Distribution Applet answer the following question, A basketball player makes 54% of his shots from the free throw line. Suppose that each of his shots can be considered independent and that he takes 3 shots. Let X the number of shots that he makes. What is the probability that he makes 2 shots or less? 0.09734 10.44010.8425
The Binomial Distribution applet will calculate the probability of the basketball player making 2 or less shots, and it turns out to be equal to 0.8425.
Using the Binomial Distribution Applet, we can find the probability that the basketball player makes 2 shots or less by inputting the given information into the applet. The number of trials is 3, the probability of success is 0.54, and the number of successes we are looking for is 2 or less.
Here are the steps to finding the probability using the Binomial Distribution Applet: Input the number of trials as 3, Input the probability of success as 0.54, Input the number of successes as 2, Click the "Calculate" button
The applet will then calculate the probability of the basketball player making 2 or less shots, which is 0.8425. Therefore, the answer to the question is 0.8425.
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please help
QUESTION S Find the absolute minimum of the function e f(x)=x²-² the interval [1.4) Round to three decimal places, please) ion on the
The absolute minimum occurs at x = 4, where f(x) has the lowest value of 14.
To find the absolute minimum of the function f(x) = x^2 - 2 on the interval [1,4], we need to evaluate the function at its critical points and endpoints and determine the lowest value.
1. Evaluate the function at the critical point(s):
To find the critical point(s), we take the derivative of f(x) with respect to x and set it equal to zero:
f'(x) = 2x
Setting f'(x) = 0, we find x = 0.
2. Evaluate the function at the endpoints:
Evaluate f(x) at x = 1 and x = 4.
f(1) = 1^2 - 2 = -1
f(4) = 4^2 - 2 = 14
3. Determine the absolute minimum:
Now, we compare the values of f(x) at the critical points and endpoints:
f(0) = 0^2 - 2 = -2
f(1) = -1
f(4) = 14
The absolute minimum occurs at x = 4, where f(x) has the lowest value of 14.
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The wavelength of a sound wave in this room is 4. 13 m and the frequency is 75 Hz. What is the speed of the wave in the room?
if you double the frequency of the sound wave but keep the wavelength the same, determine the new speed of the wave.
Answer:
\(\color{indigo}\rule{1pt}{1000000pt}\)