Answer:
C
Step-by-step explanation:
A rational number can be written as a ratio of two integers. In decimal form, a rational number will either terminate or repeat a pattern.
Please help define if these triangles are congruent or not and write a statement.
Answer:
11 - not enough information
12 - yes, Angle-Angle-Side (AAS)
13 - yes, Side-Angle-Side (SAS)
14 - yes, Angle-Side-Angle (ASA)
15 - yes, ASA
16 - yes, Side-Side-Side (SSS)
17 - yes, ASA
18 - yes, SSS
19 - no (different from "not enough information")
20 - yes, AAS
Step-by-step explanation:
11 - 1 pair of congruent sides is given; can conclude 1 pair of angles is ≅ by vertical angles; need 3 parts to prove congruence
12 - 1 pair of sides and a pair of angles given ≅; can show vertical angles ≅
13 - the side that's shared by the two triangles is the second ≅ side
14 - in addition to what's given, can show vertical angles ≅
15 - in addition to what's given, can show vertical angles ≅
16 - all given
17 - in addition to what's given, can show shared side ≅
18 - ..., shared side
19 - the congruent parts are not in the same order on each triangle
20 - all given
help please
One angle measures 25° and another angle measures (3d − 10)°. If the angles are complementary, what is the value of d?
d = 55
d = 35
d = 25
d = 11.7
If the angles are complementary, the value of d is C. d = 25.
What are complementary angles?Complementary angles are two angles whose measures add up to 90° . In the figure below, ∠1 and ∠2 are complementary. Two angles need not be adjacent to be complementary. When the sum of two angles is equal to 90 degrees, they are called complementary angles. For example, 30 degrees and 60 degrees are complementary angles
In this case, it will be:
25 + 3d - 10 = 90
3d + 15 = 90
Collect like terms
3d = 90 - 15.
3d = 75.
Divide
d = 75/3
d = 25
The correct option is C.
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Evaluate the expression using De Moivre’s Theorem: √2+3i
Give your answer in a+bi form.
Answer:
cos(π/2)+isin(π/2)
Step-by-step explanation:
hopefully that's the answer you're looking for, haven't done problems like this in a while-
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suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of per hour. suppose also that a sample culture of bacteria is obtained from this population. find the size of the sample after two hours. round your answer to the nearest integer.
The size of the sample after two hours would be 682. This is calculated using the formula N(t) = N(0) * e^(rt), where N(t) is the number of bacteria after t hours, N(0) is the initial number of bacteria, r is the growth rate parameter (in this case 0.5 per hour) and t is 2 hours. Therefore, N(2) = 682.
which ones have no solution?
Answer:b,d
Step-by-step explanation:
The product of 9 and the difference of a number and 7.
Answer:
I
Submit Answer
Answer:
9x-63
Step-by-step explanation:
9*(x-7)
9x-63
Graph: y < -1
Is (-2,5) a solution? yes or no
Is ( 6,2) a solution? yes or no
Answer: Both points are not a solution.
Step-by-step explanation:
This says that the graph will be every y-value less than -1. Both 5 (in the point (-2, 5)) and 2 (in the point (6, 2)) are greater than -1, meaning they are both not a solution.
See attached for a graph with the coordinate points graphed as well. Since these points are not in the shaded region, they are not solutions.
I need help with this question!!
Answer:
(b) 0.058 or 5.8%
Step-by-step explanation:
Given a normal distribution with mean 10.72 and standard deviation 0.14, you want the probability that a value is less than 10.5.
Probability calculatorA suitable probability calculator needs to know the mean, standard deviation, and set of values of interest. Here, ...
mean = 10.72
standard deviation = 0.14
P(X < 10.5)
The calculator shows it to be 0.058, or 5.8%.
Triangles U V W and X Y Z are shown. Angles V U W and Z X Y are congruent, angles U W V and X Z P are congruent, and angles U V W and Z Y X are congruent. The length of side U V is 50, the length of V W is 60, and the length of U W is 40. The length of side Z Y is 48, the length of Y X is 40, and the length of Z X is 32.
Which statement best describes triangles UVW and XYZ?
They are similar and congruent.
They are similar, but not congruent.
They are congruent, but not similar.
They are neither congruent nor similar.
The statement that best describes triangles UVW and XYZ is; They are similar, but not congruent.
How to Identify Congruent Angles?
We are given that;
Angles VUW and ZXY are congruent.
Angles UWV and XZP are congruent.
Angles UVW and ZYX are congruent.
Now, the length of side UV is 50, the length of VW is 60, and the length of UW is 40. The length of side ZY is 48, the length of YX is 40, and the length of ZX is 32.
Here the triangles are similar by the AAA similarity and the length of the first triangle is in the ratio 40:50:60 = 4:5:6 .
The side of the second triangle is also in the ratio 32:40:48 = 4:5:6 .
Therefore, the triangles UVW and XYZ are similar but not congruent.
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Answer:
B. They are similar, but not congruent
TRUE/FALSE. when we conduct time series forecasting it is safest to utilize regression analysis, because then we will not be extrapolating.
When we conduct time series forecasting it is safest to utilize regression analysis, because then we will not be extrapolating the above statement is False.
Regression analysis is a group of analytical techniques used to measure the relationships between a dependent variable and one or more independent variables. It may be used to simulate the long-term link between variables and gauge how strongly the relationships between them are related.
Models that evaluate the connection between a dependent variable and an independent variable include simple linear regression. The following equation represents the simple linear model:
Y = a + bX + ϵ
Regression analysis is the most secure method for time series forecasting since it involves extrapolation.
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(20x³+12x² +17x-17)÷(5x²-2x)
The division of the given polynomial is [tex]\frac{20x^3+12x^2+17x-17}{5x^2-2x}=4x+4+\frac{25x-17}{5x^2-2x}[/tex].
What is a long division of polynomials?
A long-division polynomial is an algorithm for dividing polynomials by another polynomial of the same or a lower degree. The long division of polynomials also consists of the divisor, quotient, dividend, and the remainder as in the long division method of numbers.
The given expression is (20x³ + 12x² + 17x - 17) ÷ (5x² - 2x)
[tex]=\frac{20x^3+12x^2+17x-17}{5x^2-2x}\\\\=4x+\frac{20x^2+17x-17}{5x^2-2x}\\\\=4x+4+\frac{25x-17}{5x^2-2x}\\[/tex]
Hence, the division of the given polynomial is [tex]\frac{20x^3+12x^2+17x-17}{5x^2-2x}=4x+4+\frac{25x-17}{5x^2-2x}[/tex].
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Name: Sally Jonas, single, 1 exemption.
Pay Rate: $5.95 per hour
Hours Worked: M-8, T-7, W-8, T-9, F-8
Total Hours Worked :
Wage for Week :
FICA Tax (7.65 %) :
Federal Tax :
State Income Tax (at 3%) :
City Income Tax (1.5%) :
Total Tax :
Paycheck after Taxes :
Total hours worked: $40
Wage for Week: $238
FICA Tax (7.65%): $18.21
Federal Tax (from Table): $41.60
State Income Tax (at 3%): $7.14
City Income Tax (1.5%): $3.57
Total Tax: $70.52
Paycheck after Taxes: $167.48
In September 2020, the University Senate passed a resolution to make the belted kingfisher (a bird with blue, white, and orange markings) the official mascot of the University. One might assume that senators voted as such because a majority of their constituents (more than 50%) are in favor of the resolution. You conduct a random sample of 200 students and find that 94 are in favor of the resolution, 76 are opposed, and 30 do not care at all. (a) Construct a 90% confidence interval for p. (a) [5 pts] (b) Based on your sample, is it plausible within 90% confidence that a majority of students support the resolution: yes or no? Explain the reason for your choice (in one sentence). (b) [5 pts].
On solving the provided question, as Given, n = 200, x = 94, [tex]p^{'} = x/n 94/200 = 0.47[/tex] and the answer is 0.91 < p < 0.53
What is equation?A formula is a statement that the values of two expressions are equal. The formula essentially says that two things are equal. An equals sign or '=' indicates that. 8+2=12-2 is an example equation. According to the above formula, the left side of the formula is equal to the right side. So the equation is the statement "this is equal to that".
Given, n = 200, x = 94, [tex]p^{'} = x/n 94/200 = 0.47[/tex]
[tex]1-\alpha = 0.9\\\alpha =1.\\[/tex]
confidences interval for p :-
(0.47 - 1.695 X [tex]\sqrt{\frac{0.47(1 - 0.47)}{200} }[/tex] , 0.47 + 1.695 X [tex]\sqrt{\frac{0.47(1 - 0.47)}{200} }[/tex])
(0.91 , 0.53 )
0.91 < p < 0.53
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Help quick!! One angle measures 24°, and another angle measures (7d-4)°. If the angles are complementary what is the value of d?
d=80
d=17
d = 10
d=3
Answer:
d = 10°
Step-by-step explanation:
7d - 4 + 24 = 90
7d + 20 = 90
7d = 90 - 20
7d = 70
7/7 d = 70/7
d = 10
The Variance Inflationary Factor (VIF) measures the: a. correlation of the X variables with the Y variable. b. correlation of the X variables with each other. c. standard deviation of the slope. d. contribution of each X variable with the Y variable after all other X variables are included in the model. e. both a and b.
The X variables have an overall correlation of 0. VIF, or Variance Inflationary Factor, measures the
How much of an inflation variance factor is there?Regression analysis's level of multicollinearity is gauged by a variance inflation factor, or VIF. When several independent variables in some kind of a model with multiple regression correlate with one another, this is known as multicollinearity. The regression findings may be significantly impacted by this.
How high of a VIF is that?Greater correlation between the variable and other variables is indicated by a higher value. With values of Ten or more being considered very high, values greater than 4 or 5 are occasionally considered to be moderate to high.
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whats the geometric mean of 6 and 28
Answer:
Geometric mean: 12.961481396816
What’s the answer? pls hurry!
Answer:
Step-by-step explanation:
use (Y2-Y1)/(X2-X1)
(7-2)/(0-(-5))=5/5=1
y=1x+b is your equation with value b as the y intercept.
Plug in a point into this and solve for b
7=1(0)+b
7=b
final equation is y=x+7
A is the answer
The ultimate goal of muted group theory is to:A. Help men understand the perspective of women. B. Elect women to major leadership positions in Western democracies. C. Change linguistic systems that make it more difficult for women to be heard. D. Predict how women and men will communicate across gender lines.C. Change linguistic systems that make it more difficult for women to be heard.(The feminist dictionary is one attempt to create an alternative vocabulary.)
The question mentions muted group theory, which is a kind of Communication Theory. The answer is option C, which changes linguistic systems that make it more difficult for women to be heard.
A verbal system is a language taken as a combination of its corridor. A verbal system can also relate to a set of choices that druggies of language have in contriving rulings.
Muted group proposition is the introductory idea, articulated by anthropologists Ardener and Ardener, that in every society there are artistic groups who are traditionally muted — given lower access than members of the dominant groups to public converse and to having their individual and community enterprises heard.
Muted group proposition is the introductory idea, that in every society there are artistic groups who are traditionally muted — given lower access than members of the dominant groups to public converse and to having their individual and community enterprises heard.
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Solve For X, using the degrees given in the equation.
x= 101°.
Step-by-step explanation:1. Refer to the theory.Theory of triangles states that the sum of all inner angles of a triangle should equal 180°. Hence, you can make an equation that gives the missing value of "x" in this problem.
2. Form the equation.[tex]x+30+49=180[/tex]
3. Solve the equation.[tex]x=180-30-49\\ \\x=101[/tex]
4. Conclude.x= 101°.
Find Mean, Median, and Mode
What is the mean, median, and mode of the data in this set?
0.1,12.3,2.4,10.1,4.5,6.2
For the data in the given set , the mean is 7.6 , the median is 8.15 and the median is 10.1 .
In the question ,
the data in the set is given as 10.1 , 12.3 , 2.4 , 10.1 , 4.5 , 6.2 .
on arranging data set in ascending order ,
we get , 2.4 , 4.5 , 6.2 , 10.1 , 10.1 , 12.3 .
the sum is = 45.6
the mean is = sum /(number of terms)
= 45.6/6
= 7.6
the data has 6 numbers of terms
So ,the median will be (3rd term + 4th term)/2
= (6.2 + 10.1)/2
= 16.3/2
= 8.15
the term 10.1 occurs most number of time that is two times .
So , the mode is 10.1 .
Therefore , the mean is 7.6 , median is 8.15 and mode is 10.1 .
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Solve:
19) m∠2 = 12x-4
For the given isosceles triangle when we solve m < 2 = 12x - 4 we get the value of x = 4.5 degrees.
It is known that two sides are equal so it is a isosceles triangle so the two angles are equal, that is
m<2 = 50
50 = 12x - 4
50 + 4 = 12x
54 = 12x
Divide by 12 on both sides
54 / 12 = 12 x / 12
x = 54 / 12
= 27 / 6
= 9 / 2
= 4.5 degrees
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How do I find the area between the curves of y=x+2 and y=x^{2}-2?
Refer to the attached photos. I would appreciate a rate :)
et h be the set of all points of the form (s, s-1). determine whether h is a vector space. if it is not a vector space, determine which of the following properties it fails to satisfy. a: contains zero vector b: closed under vector addition c: closed under multiplication by scalars
No, h is not a vector space. It fails to satisfy property (b), closed under vector addition.
For a set to be a vector space, it must satisfy three properties: contains the zero vector, closed under vector addition and closed under multiplication by scalars.
For a set to be closed under vector addition, the sum of any two vectors in the set must also be in the set. In this case, the set h contains the points (s, s-1).
When two points are added, the result is (2s, 2s-2), which is not in the set h. Therefore, h fails to satisfy property (b) and is not a vector space.
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Describe the transformation of the parent
function f(x) = x³, to obtain the function
g(x) = (x − 8)³ + 4.
The transformation from the parent function is a translation by 8 units right and 4 units up
How to describe the transformation from the parent function?From the question, we have the following function that can be used in our computation:
f(x) = x³
g(x) = (x − 8)³ + 4
First, we have the transformation to be:
From f(x) = x³ to f'(x) = (x − 8)³
This means the function is translated right by 8 units
Next, we have:
From f'(x) = (x − 8)³ to g(x) = (x − 8)³ + 4
This means the function is translated up by 4 units
Hence, the transformation is 8 units right and 4 units up
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Please help! Confused if the answer is B or D???
Answer:
Step-by-step explanation:
its b
Select the number that matches the power of ten. 105 = 10-3 =
A red and a blue die are thrown. Both dice are fair. The events A, B, and C are defined as follows: A: The sum on the two dice is even
B: The sum on the two dice is at least 10
C. The red die comes up 5
The probability of event A occurring is 1/2, the probability of event B occurring is 1/3, and the probability of event C occurring is 1/6.
in order for a sum of two dice to be even, the numbers on the two dice must add up to an even number. The possible combinations of two dice that add up to an even number are (1,3), (3,1), (2,4), (4,2), (5,5). Therefore, the probability of event A occurring is 1/2.
In order for the sum of two dice to be at least 10, the numbers on the two dice must add up to 10, 11, 12. The possible combinations of two dice that add up to 10, 11, 12 are (4,6), (6,4), (5,5), (5,6), (6,5). Therefore, the probability of event B occurring is 1/3.
In order for the red die to come up 5, the number on the other die does not matter. Therefore, the probability of event C occurring is 1/6.
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A social scientist would like to analyze the relationship between educational attainment (in years of higher education) and annual salary (in $1,000s). He collects data on 20 individuals. A portion of the data is as follows:
Salary Education
40 4
73 1
99 7
57 1
83 8
76 4
109 6
49 0
31 4
32 4
91 2
40 4
65 6
71 2
166 5
61 0
88 1
59 4
132 9
25 0
a. Find the sample regression equation for the model: Salary = β0 + β1Education + ε. (Round answers to 3 decimal places.)
Salaryˆ= ? + ? Education
b. Interpret the coefficient for Education.
As Education increases by 1 unit, an individual’s annual salary is predicted to increase by $8,590.
As Education increases by 1 unit, an individual’s annual salary is predicted to increase by $6,223.
As Education increases by 1 unit, an individual’s annual salary is predicted to decrease by $6,223.
As Education increases by 1 unit, an individual’s annual salary is predicted to decrease by $8,590.
c. What is the predicted salary for an individual who completed 5 years of higher education? (Round answer to the nearest whole number.)
Salaryˆ $
The linear regression equation between educational attainment (in years of higher education) and annual salary (in $1,000s) be
Salary = 84 - 11×Education
Given, a social scientist would like to analyze the relationship between educational attainment (in years of higher education) and annual salary (in $1,000s). He collects data on 20 individuals.
we have to find the sample regression equation for the given model
Salary = β0 + β1Education
On using the different values of salary and education, we get
for salary = 40 and education = 4
40 = β0 + 4β1
for salary = 73 and education = 1
73 = β0 + β1
On subtracting both the equations, we get
33 = -3β1
β1 = -11
On substituting the value of β1, we get
40 = β0 + 4(-11)
β0 = 40 + 44
β0 = 84
So, the regression equation be
Salary = 84 - 11×Education
Hence, the regression equation be
Salary = 84 - 11×Education
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2x5−x3+x2+4; reflection in the y-axis and a vertical stretch by a factor of 3, followed by a translation 1 unit down
3x2-3(y+1)+9x2+12; reflection in the y-axis, a vertical stretch by a factor of 3, and a translation 1 unit down
The reflection in the y-axis can be achieved by changing the sign of the x-terms while leaving the y-term unchanged. Afterwards, the function needs to be stretched vertically by a factor of 3. This means that all terms will be multiplied by 3. Lastly, the function requires a translation 1 unit down. This can be done by adding a -1 to the y-term. Therefore, the final equation is 3x2-3(y+1)+9x2+12 which includes the reflection in the y-axis, vertical stretch by a factor of 3, and translation 1 unit down.
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A communication tower (the side CB) is located at the top (the point C) of a steep hill. The angle of inclination of the hill is 58 degrees. A guy wire is to be attached to the top (the point B) of the tower and to the ground (the point A), 104 m downhill from the base of the tower (the side AC). The angle ∠BAC
is 12 degrees.
Find the length of cable (the side AB) required for the guy wire. Your answer is _____m
Using the sine ratio with the angle of depression, the length of the wire is 122.63m
Angle of DepressionThe angle of depression is formed when the observer is higher than the object he/she is looking at. When an observer looks at an object that is situated at a distance lower than the observer, an angle is formed below the horizontal line drawn with the level of the eye of the observer and line joining object with the observer’s eye. Whereas the angle of elevation is the angle formed if a person stands on the ground and looks on the object kept above the ground at a height above the height of the person. This is the basic difference between the two angles. Both the angles are calculated by using the concept of trigonometry.
Using trigonometric ratio;
angle = 58 degreesOpposite = AB = 104mHypothenuse = AC = ?Using the sine angle ratio;
sin θ = opposite / hypothenuse
sin 58 = 104 / AC
AC = 104 / sin 58
AC = 122.63m
The length of the wire is 122.63m
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