Answer:
(x+7)(x+2)
Step-by-step explanation:
If we multiply it out we get:
x * x = x^2
7 * x = 7x
2 * x = 2x
7 * 2 = 14
Add it all, we get: x^2 +9x+14
Therefore these are the factors
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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Local government officials would like to know if city residents are generally satisfied with the cleanliness of local streets and recreation areas. To estimate the level of satisfaction, the officials are considering many methods to collect information. Which of the following methods would not provide a voluntary response sample?
A) The city’s webpage contains a survey where residents can share their opinions.
B) A printed survey is provided in the Sunday newspaper requesting that residents mail in their responses.
C) A random sample of homes in the city is taken, and city officials visit these homes and survey the homeowners.
D) The local officials are guests on a radio talk show, and residents call in to the show to share their opinions.
Answer:
C) A random sample of homes in the city is taken, and city officials visit these homes and survey the homeowners.
We can see that the method that would not provide a voluntary response sample is: C) A random sample of homes in the city is taken, and city officials visit these homes and survey the homeowners.
What is Voluntary Response Sample?Voluntary response sample refers to the sample that participants chose to be involved in and such is carried out voluntarily without compulsion.
Thus, we see here that the method that would not provide a voluntary response sample is the random sample method.
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can somebody help me
\((15f + 37f + 53 + 55)\)
Answer:
(15f + 37f + 52 + 55) = ?
15f + 37f = 52f
52 + 55 = 107
So, (15f + 37f + 52 + 55) = 52f + 107.
Step-by-step explanation:
Hope that this helps! :)
Have a great rest of your day/night!
Give an example of matrices A, B, and C (of any size), such that B does not equal C, A does not equal 0, and yet AB = AC.
An example of matrices A, B, and C that fit the given conditions are:
A = | 1 2 |
| 3 4 |
B = | 5 6 |
| 7 8 |
C = | 9 10 |
| 11 12 |
Even though B does not equal C and A does not equal 0, the product of AB and AC are the same:
AB = | 1*5 + 2*7 1*6 + 2*8 |
| 3*5 + 4*7 3*6 + 4*8 | = | 19 22 |
| 43 50 |
AC = | 1*9 + 2*11 1*10 + 2*12 |
| 3*9 + 4*11 3*10 + 4*12 | = | 31 34 |
| 69 78 |
As you can see, the product of AB and AC are the same, even though B does not equal C and A does not equal 0. This is an example of how matrices can have the same product even if they are not the same matrix.
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A line that includes the point (10, 7) has a slope of 10 . What is its equation in slope-intercept form?
Answer:
y=3x+7
Step-by-step explanation:
subtract 7 from 10 to get answer
The value of a motorcycle decreases at a steady rate of 20% each year. What is the total percentage loss (to the nearest integer) in the value of the motorcycle at the end of 3 years?
Answer:
The total percentage loss would be 67%.
Step-by-step explanation:
Since we have given that
Rate of decline each year = 20%
Number of years = 5
We need to find the total percentage loss in value of the house at the end of 5 years.
So, Total percentage loss would be
PLEASE HELP IM STUCK
Answer:
6x + 4y = 16
Step-by-step explanation:
2(3x + 2y = 8)
2(3x + 2y) = 2(8)
6x + 4y = 16
Answer:
6x+4y=16
Step-by-step explanation:
2 (3x+2y=8)
2×3x+2×2y=2×8
=6x+4y=16 ans.
Order the set of numbers from least to greatest.
-0.62
-0.615
-5/6
Answer:
5/6, -0.62, -0.615
Step-by-step explanation:
Hope this Help If i got it wrong I'm sorry I tried :(
I need to show my work for this it's submit in 35 minutes
Step-by-step explanation:
For the first equation you need to divide 25 with 18,175 which equals 1/727.
The second one you need to divide 92 with 20,884 which also equals 1/727.
So the answer will be 1/727
Based on the given angle measures, which triangle has side length measures that could be correct? A right triangle is shown. The length of the hypotenuse is 16, the base is 8, and the other side is 13.9. The top angle is 60 degrees and the bottom right angle is 30 degrees. A right triangle is shown. The length of the hypotenuse is 13.9, the base is 8, and the other side is 16. The top angle is 60 degrees and the bottom right angle is 30 degrees. A right triangle is shown. The length of the hypotenuse is 13.9, the base is 16, and the other side is 8. The top angle is 60 degrees and the bottom right angle is 30 degrees. A right triangle is shown. The length of the hypotenuse is 16, the base is 13.9, and the other side is 8. The top angle is 60 degrees and the bottom right angle is 30 degrees.
Answer:
A right triangle is shown. The length of the hypotenuse is 16, the base is 13.9, and the other side is 8. The top angle is 60 degrees and the bottom right angle is 30 degrees.
Step-by-step explanation:
The measures of the angles of in a triangle should correspond to the length size of the side opposite each angle in a triangle.
In simple terms, this means that the larger the measure of an angle, the longer the length of the side opposite that angle. Therefore, the smallest measure of an the 3 angles in the triangle should correspond with the shortest length.
Therefore, the triangle with the correct side length would be "A right triangle is shown. The length of the hypotenuse is 16, the base is 13.9, and the other side is 8. The top angle is 60 degrees and the bottom right angle is 30 degrees." Check the attachment below to see how each side length corresponds with each angle opposite them.
Answer:
D
Step-by-step explanation:
your welcome
Show all work or no credit will be given. Write your answer in an organized and legible format. 1. Let R be the region bounded by the curves y= √x,y=2 and x=0. Include an appropriately labeled diagram. You must set up the required integral, but are not required to evaluate. (a) Find the volume by revolving the R around the line y=0. (b) Find the volume by revolving the R around the line x=4.
(a) The volume of the solid is given by the integral: V = ∫ (2πx)(2 - √x) dx.
(b) the volume of the solid is given by the integral: V = ∫ (2π)(4 - x)(2 - √x) dx.
To find the volume of the solid generated by revolving the region R around the given lines, we can use the method of cylindrical shells.
(a) Revolving R around the line y = 0:
First, let's sketch the region R bounded by the curves y = √x, y = 2, and x = 0:
```
| y = 2
|
| √x
|
_______|_______ x = 0
```
To find the volume, we integrate the circumference of each cylindrical shell multiplied by its height.
The height of each shell will be the difference between the upper and lower curves, which is 2 - √x.
The radius of each shell will be the x-coordinate, which is x.
The circumference of each shell is given by 2πr = 2πx.
Therefore, the volume of the solid is given by the integral:
V = ∫ (2πx)(2 - √x) dx
(b) Revolving R around the line x = 4:
Again, let's sketch the region R:
```
| y = 2
|
| √x
|
_______|_______ x = 4
```
In this case, the height of each shell will still be 2 - √x, but the radius will be the distance from the line x = 4 to each x-coordinate, which is 4 - x.
So the volume of the solid is given by the integral:
V = ∫ (2π)(4 - x)(2 - √x) dx
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hich of the six possible logical implications (see below) between pairs of p , q, and r are true, and why? are any of p , q, and r logically equivalent to another?
A logical implication is considered true if the antecedent (p or q or r) implies the consequent (q or p or r), meaning that if the antecedent is true, then the consequent must also be true.
The six possible logical implications between pairs of propositions p, q, and r are:
p implies q (p => q)q implies p (q => p)p implies r (p => r)r implies p (r => p)q implies r (q => r)r implies q (r => q)A logical implication is considered true if the antecedent (p or q or r) implies the consequent (q or p or r), meaning that if the antecedent is true, then the consequent must also be true. However, the converse of the implication may not be true, meaning that if the consequent is true, the antecedent may not be true.
Whether or not any of p, q, and r are logically equivalent to another depends on the specific logical relationships between them. Logical equivalence occurs when two propositions have the same truth value, meaning that they are both true or both false, regardless of the truth values of the other propositions.
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In the circle with center $O$, the measure of $\angle RIP$ is $36^\circ$ and $OR=10$ cm. Find the number of centimeters in the length of arc $RP$. Express your answer in terms of $\pi$
RP is an arc of a circle with radius 10 cm and central angle of 36⁰. The length of arc RP is 2π cm
An arc of a circle is defined as a segment of the circumference of a circle.
Suppose the arc is facing a central angle θ, then the length of this arc is given by:
arc's length = (θ/360⁰) x C
Where:
C = circle circumference = 2πr
r = radius of the circle.
Hence,
arc's length = (θ/360⁰) x 2πr
In the given problem, the radius is the length of OR. Therefore,
r = 10 cm
θ = central angle = 36⁰
Plug these parameters into the formula:
length of arc RP = (36⁰/360⁰) x 2π x 10
= (1/10) x 2π x 10
= 2π cm
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prove that (sec theta + tan theta - 1)(sec theta - tan theta + 1) = 2tan theta
Answer:
(secΘ+tanΘ-1)(secΘ-tanΘ+1)
=sec²Θ-secΘtanΘ+secΘ+secΘtan-tan²Θ+tanΘ-secΘ+tanΘ-1
=2tanΘ+(sec²Θ-tan²Θ)-1
=2tanΘ+1-1
=2tanΘ
Can someone help really fast with this question
The answer that describes the polygon RSTU is as follows:
QuadrilateralTrapezoidHow to find a quadrilateral?A quadrilateral is a polygon with 4 sides. Therefore, let's use the properties to find the name of the shape RSTU as follows:
The polygon has 4 sides therefore, it is a quadrilateral.
The quadrilateral has opposite side parallel to each other. The opposite sides are RS and TU.
A trapezoid is a quadrilateral with only one pair of opposite side parallel to each other.
Therefore, the shapes that defines the polygon are as follows:
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Solve the following problem using proper numerical methods and time steps (Gerald, Applied numerical analysis). Report your results along with analytical solutions, comparisons, plots and MATLAB scripts. Check the table for your parameters. APP7. A vibrating string, with a damping force-opposing its motion that is proportional to the velocity, fol- lows the equation where B is the magnitude of the damping force. Solve the problem if the length of the string is 5 ft with 7-24 lb, w=0.1 lb/ft, and B= 2.0. Initial conditions are XXX--05x<3, XXX 3≤x≤5, = x(x - 5). Compute a few points of the solution by difference equations. 1/s B TP parameters Newton kg/m T W 140 2.4 14
To solve the problem of a vibrating string with damping using numerical methods and time steps, follow these steps:
1. Discretize the string into a set of points along its length.
2. Use a finite difference method, such as the central difference method, to approximate the derivatives in the equation.
3. Apply the difference equation to each point on the string, considering the damping force and given parameters.
4. Set up the initial conditions for the string's displacement and velocity at each point.
5. Iterate over time steps to update the displacements and velocities at each point using the finite difference equation.
6. Compute and store the values of the solution at selected points for analysis.
7. Compare the numerical solution with the analytical solution, if available, to assess accuracy.
8. Plot the results to visualize the behavior of the vibrating string over time.
9. If using MATLAB, write a script to implement the numerical method and generate plots.
Note: The specific equation and initial conditions are missing from the given question, so adapt the steps accordingly.
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I need help I’ve been struggling
The first four terms of the sequence are 5, -4, 14, and -22.
We have,
The first term is given as a_1 = 5.
To find the next term, we use the formula:
a_n = -2a_(n-1) + 6.
Now,
a_2
= -2a_1 + 6
= -2(5) + 6
= -4
For the third term:
a_3 = -2a_2 + 6 = -2(-4) + 6 = 14
And for the fourth term:
a_4
= -2a_3 + 6
= -2(14) + 6
= -22
Thus,
The first four terms of the sequence are 5, -4, 14, and -22.
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Given that
4
x
:
3
=
6
:
5
Calculate the value of
x
Answer:
Step-by-step explanation:
4x = 6/5 * 3
4x = 18/5
x = 18/5*4 = 9 / 10 = 0.9 Ans.
Answer:
0.9 I hope it help you to do this question
help me with math please
Find the perimeter of a regular pentagon with consecutive vertices at A(-3, 5) and B(7, 6).
The regular pentagon's perimeter is therefore sqrt(101) units when its adjacent edges are at A(-3, 5) and B(7, 6).
what is perimeter ?The perimeter of a two-dimensional object is the space surrounding it. It represents the total length of the shape's edges. Typically, the perimeter is calculated using measures like centimetres, metres, or feet.
given
We can use the calculation for the distance between the two provided vertices to determine the length of one side:
sqrt[(7 - (-3))2 Plus (6 - 5)2] yields AB. = sqrt[10^2 + 1^2] = sqrt(101) (101)
Since the five sides of a normal pentagon are all the same length, one side's length is:
sqrt(101) / 5
s = AB / 5
Now, utilising the method for the regular pentagon's perimeter, we have:
Circumference = 5s = 5 sqrt(101) / 5 = sqrt (101)
The regular pentagon's perimeter is therefore sqrt(101) units when its adjacent edges are at A(-3, 5) and B(7, 6).
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the dimensions of noah’s ark were reported as 3.0 × 102 cubits by 5.0 × 101 cubits. express this size in units of feet (1 cubit = 1.5 ft)
The dimensions of Noah's Ark in feet are 450 feet by 75 feet if the dimensions of Noah's Ark is 3.0 × 102 cubits by 5.0 × 101 cubits.
Noah's Ark is said to have dimensions of 3.0 × 10^2 cubits by 5.0 × 10^1 cubits. To convert these measurements to feet, we can use the conversion factor of 1 cubit = 1.5 feet.
First, we need to convert the length of the ark from cubits to feet. To do this, we multiply the length of the ark in cubits (3.0 × 10^2) by the conversion factor of 1.5 feet/cubit. This gives us a length of
3.0 × 10^2 cubits x 1.5 feet/cubit = 450 feet
Similarly, we can convert the width of the ark from cubits to feet by multiplying the width in cubits (5.0 × 10^1) by the conversion factor of 1.5 feet/cubit. This gives us a width of:
5.0 × 10^1 cubits x 1.5 feet/cubit = 75 feet
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f(x)=6x^3-4, g(x)=2x+2, find (g-f)(x)
The value of (g-f)(X) is 2x - 6x³ +6.
what is Function?An expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given:
f(x)= 6x³-4, g(x)= 2x+2
Now,
(g-f)(x)= g(x)-f(x)
= 2x+2-( 6x³-4)
=2x+2- 6x³+4
=2x - 6x³ +6
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Erin wants to know if warming up will help runners sprint faster. Twenty-six track and field athletes volunteered to participate in her study. She randomly assigns 13 athletes to warm-up for 10 minutes. All 26 participants sprint the same distance. She calculates the mean for each group and determines that the mean for the warm-up group was 10.9 seconds, and the mean for the other group was 12.9 seconds. To test the difference of means she re-randomized the data 54 times, and the differences are plotted in the dot plot below. What can Erin conclude from her study? (6 points) A dot plot is shown labeled from negative 2.5 to positive 2. Above the negative 2.5 are 3 dots. Above the negative 2 are 6 dots. Above the negative 1.5 are 9 dots. Above the negative 1 are 12 dots. Above the negative 0.5 are 6 dots. Above the 0.0 are The difference in the means is not significant because a difference of 2 is not very likely. The difference in the means is not significant because a difference of 2 is very likely. The difference in the means is significant because a difference of 2 is very likely. The difference in the means is significant because a difference of 2 is not very likely.
Answer:
hope it Helps
Step-by-step explanation:
Brainliest please
Answer: the answer above me was not correct for me.
Step-by-step explanation:
Question 5 (4 points)
Which of the following would be equivalent to 92.967 (4 points)
O a
98
Oь
92.97
Ос
910
92
Od
90
Answer:
92.97
Hope this helped!
Find all the missing elements.
Round to the nearest tenth.
a = 10
b = 7
C = 6
A = [?]°
B = [ ]° C = [ ]°
Answer:
A= 100.3
B= 43.5
C =36.2
Step-by-step explanation:
Answer:
The answer for Acellus people is
A = 100.3
B = 43.5
C = 36.2
Step-by-step explanation:
Given the differential equation: dG/dx= -фG
Solve the differential equation to find an expression for G (x)
The solution to the given differential equation is G(x) = ±Ce^(-фx), where C = e^C is a constant.
To solve the differential equation dG/dx = -фG, we can separate variables by multiplying both sides by dx and dividing by G. This yields:
1/G dG = -ф dx
Integrating both sides, we obtain:
∫(1/G) dG = -ф ∫dx
The integral of 1/G with respect to G is ln|G|, and the integral of dx is x. Applying these integrals, we have:
ln|G| = -фx + C
where C is the constant of integration. By exponentiating both sides, we get:
|G| = e^(-фx+C)
Since the absolute value of G can be positive or negative, we can rewrite the equation as:
G(x) = ±e^C e^(-фx)
Here, ±e^C represents the arbitrary constant of integration. Therefore, the solution to the given differential equation is G(x) = ±Ce^(-фx), where C = e^C is a constant.
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In science class, Mrs. Moore's students were directed to weigh a 300-gram mass on the balance scale. Tina weighed
the object and reported 328 grams.
Answer: 9 1/3%
Step-by-step explanation:
What is (-2,-10) over the x-axis
If the average temperature on Saturday was 62.6 F what was the actual temperature
The average temperature on Saturday was 62.6 °F, then the actual temperature will be equal to 17 °C.
What are arithmetic Operations?The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or even more items.
Included in them is the study of integers, especially the order of operations, which is important for all other areas of mathematics, notably algebra, data management, and geometry.
As per the given information in the question,
The temperature on Saturday was 62.6 F
Then, the actual temperature will be,
C = 5/9(F -32)
C = 5/9(62.6 - 32)
C = 5/9(30.6)
= 17 °C
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AABC ~ AXYZ
Find the missing side length, s
B
S
8
A
C
s = [?]
+x
A
5
Z
Enter
Answer:
s = 10
Step-by-step explanation:
since the triangles are similar then the ratios of corresponding sides are in proportion , that is
\(\frac{AB}{XY}\) = \(\frac{BC}{YZ}\) ( substitute values )
\(\frac{8}{4}\) = \(\frac{s}{5}\) ( cross- multiply )
4s = 40 ( divide both sides by 4 )
s = 10