URGENT!! ILL GIVE BRAINLIEST! AND 100 POINTS
From the information provided, according to the table, if the purchase price of a car was less than $20,000, what is the probability that its Trepair costs were less than about 46%.
If a car had total repair costs of less than $10,000, what is the probability that its purchase price was more than $40.000 Express your about 20%.
How did we get these values?Probability is a measure of the likelihood of an event happening. It is a numerical value between 0 and 1, where 0 indicates an event is impossible, and 1 indicates an event is certain.
So, calculating the probability of the events above happening in percentage is as follows:
A. 86/ (86+67+35) =
18/188 ≈ 46%.
Therefore, Blank 1 is about 46%
B. 40/(88+71+40) =
40/197 ≈ 20%.
Therefore, Blank 2 is about 20%.
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Suppose that the following scatter plot displays the data between the amount of time truck drivers are driving on the road and the average number of stops that they make along the way, from a sample of
30 truck drivers.
What is the correlation between the amount of time truck drivers are driving and the average number of stops that they make?
Answer:
Step-by-step explanation:
There is no correlation between the two.
The graph provided is a scatter plot and the dots are to spread out to have any time of coloration
In a town of 42800 people.48% are male.the rest are female. how many more female are there than males
Answer:
First, we need to find out how many people are male and female in the town:
Step-by-step explanation:
Male population = 48% of 42800 = 20544
Female population = 100% - 48% = 52% of 42800 = 22256
To find out how many more females there are than males, we need to subtract the male population from the female population:
Female population - Male population = 22256 - 20544 = 1712
Therefore, there are 1712 more females than males in the town.
a canoe is seen floating down a creek. the canoe is first spotted 65 ft away. 7 seconds later the canoe is 40. ft away, making a 50° angle between the two settings how far did the canoe travel
The canoe traveled approximately a distance of 21.9ft.
let the distance the canoe travels be "d".
Initial position = 65 ft
After 7s,
The Final position is 40ft away
From the given information the canoe moves =(65-40)=25ft closer
Let x=25ft
Using the tangent function
we know that, tan(50degree)=x/d
therefore, d=25/tan(50 degree)
d=21.9ft
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PLEASE HELP ME ANSWER THIS QUESTION ASAP!! Will mark as brainliest if correct!
answer attached
see below
please give brainliest it will be much appreciated
which of the following number sequences could be produced by the expression
2x+x^2
The given expression is
[tex]2x+x^2[/tex]
So we can write the general rule for the sequence as
[tex]T_x=2x+x^2[/tex]
Recall that the domain of a sequence is the set of natural numbers.
Let us plug in some first few natural numbers to generate the sequence.
When [tex]x=1[/tex], we obtain,
[tex]T_1=2(1)+(1)^2[/tex]
[tex]\rightarrow T_1=2+1[/tex]
[tex]\rightarrow T_1=3[/tex]
When [tex]x=2[/tex], we obtain,
[tex]T_2=2(2)+(2)^2[/tex]
[tex]\rightarrow T_2=4+4[/tex]
[tex]\rightarrow T_2=8[/tex]
When [tex]x=3[/tex], we obtain,
[tex]T_3=2(3)+(3)^2[/tex]
[tex]T_3=6+9[/tex]
[tex]T_3=15[/tex]
When [tex]x=4[/tex], we obtain,
[tex]T_4=2(4)+(4)^2[/tex]
[tex]T_4=8+16[/tex]
[tex]T_4=24[/tex]
Therefore the number sequence produced by the given expression is,
[tex]\boxed{\bold{3, 8, 15, 24.}}[/tex]
AWARDING 90 POINTS!!!
Question
A survey was conducted to see how the teachers at Blue Pacific School District volunteer. Forty-four teachers volunteer at an animal shelter.
How many teachers volunteer at a senior center?
Enter your answer in the box.
Answer:
Step-by-step explanation:
If the diameter of a tree trunk is growing 1/4 inch each year, how many years will it take for the diameter to grow 8 inches? Explain how you found your answer.
The number of years that it will take to grow 8 inches is 32 years.
How many years will it take for the diameter to grow 8 inches?We know that the diameter grows at a constant rate of 1/4 inches per year.
Then the amount that the diameter grows after x years is given by the linear equation:
D(x) = x*(1/4) in
We want to find the number of years that it takes to grow 8 inches, then we need to solve the linear equation:
8in = x*(1/4) in
Now we can solve that equation for x, we will get:
8in/((1/4) in) = x
8*4 = x
32 = x
It will take 32 years.
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Yolanda rented a truck for one day. There was a base fee of $10.75, and there was an additional charge of 6 cents for each mile driven. The total cost, C (in dollars), for driving x miles is given by the following.
Answer:
The total cost, C (in dollars), for driving x miles is given by:
C = 0.06x + 10.75
where x is the number of miles driven.
To find the total cost for driving a certain number of miles, simply substitute that value for x in the equation and solve for C.
You want to know the number of students in your school that have a January birthday. You survey the students in your math class. Three students have a January birthday, and 32 do not. So, you conclude that about 8.6% of the students in your school have a January birthday. Determine whether the conclusion is valid. Explain. (Sorry it’s so long)
It is not appropriate to generalize the findings of the survey to the entire school population.
What is survey?
The conclusion that about 8.6% of the students in the school have a January birthday is not necessarily valid based on the information provided.
The sample size of the survey is too small (only 3 students with January birthdays) and limited to one math class, so it may not be representative of the whole school population. Additionally, the sample is not randomly selected, which introduces the possibility of selection bias.
Therefore, it is not appropriate to generalize the findings of the survey to the entire school population. A more reliable way to determine the percentage of students with a January birthday would be to collect data from a larger, randomly selected sample of students across the entire school population.
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find the limiting value or horizontal asymptote of y= 2x/4x-5
The limiting value or horizontal asymptote of the function y = 2x/4x-5 is y = 0.5
Finding the limiting value or horizontal asymptoteFrom the question, we have the following parameters that can be used in our computation:
y = 2x/4x-5
The limiting value or horizontal asymptote can be calculated by graph
So, we start by plotting the graph of y = 2x/4x-5
See attachment for the graph
From the graph, we can see that
The function does not have a defined value at y = 0.5
This means that the limiting value or horizontal asymptote is y = 0.5
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Find the surface area of the composite solid to the nearest hundredth.
The surface area of the composite solid is calculated to the nearest hundredth as: 113.09 square feet.
How to Find the Surface Area of a Composite Solid?To find the surface area of the composite solid which is composed of a cone and a cylinder, do the following:
Find the surface area of the cone:
Surface area of cone = πrl
radius (r) = 4 ft
l = √(3² + 4²) = 5 ft
Plug in the values:
Surface area of cone = π * 4 * 5 ≈ 62.83 square feet.
Find the surface area of the cylinder:
Surface area of cylinder = 2πr(h + r)
radius (r) = 4 ft
h = 2 ft
Plug in the values:
Surface area of cylinder = 2 * π * 4 * (2 + 4) ≈ 150.80 square feet.
Find area of the surface both meet:
Area = πr² = π * 4² ≈ 50.27 square feet.
Surface area of the composite solid = 62.83 + 150.80 - 2(50.27)
= 113.09 square feet.
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Cari owns a horse farm and a horse trailer that can transport up to 8,000 pounds of livestock and tack. She travels with 5 horses whose combined weight is 6,240 pounds. Let t represent the average weight of tack per horse. What inequalities could show the weight of each horse?
The inequalities that could show the weight of each horse are:
h ≤ 1248
t ≤ 352
To determine the inequalities that could show the weight of each horse, we can use the fact that the total weight of the horses and tack must be less than or equal to the capacity of the horse trailer. We can set up the following inequalities:
5h + 5t ≤ 8000
where h represents the average weight of each horse.
However, we don't know the value of t, so we need to express it in terms of h. We are given that the combined weight of the horses is 6,240 pounds, so we can write:
5h ≤ 6240
Solving for h, we get:
h ≤ 1248
This means that the weight of each horse must be less than or equal to 1,248 pounds.
Now we can substitute this upper bound for h into the first inequality to get:
5(1248) + 5t ≤ 8000
6240 + 5t ≤ 8000
5t ≤ 1760
t ≤ 352
This means that the average weight of tack per horse must be less than or equal to 352 pounds.
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Let’s say that you are the Business Analytics Head at a national bank. From the historical data, you have determined that there is a 0.33 probability that a customer would default on a particular loan. What is the probability that out of the next two customers who apply for the same loan, both would not default on the loan?
Answer:
Step-by-step explanation:
26/7
Find the standard form of the equation for the circle with the following properties.
Endpoints of a diameter are (−6,−1) and (−8,−11)
Standard form of the equation for the circle with the following properties is (x + 7)² + (y + 6)²= 104.
What is diameter?A line segment through the center of a circle with its ends on the circle's circumference. Its value is twice of the radius.
Define equation?An equation is a mathematical statement that asserts the equality between two expressions, typically containing one or more variables. It consists of two sides separated by an equals sign (=), indicating that the expressions on both sides have the same value. Equations are used to describe relationships, solve problems, and make predictions in various branches of mathematics, science, engineering, and other fields. They can be linear or nonlinear, and may involve arithmetic, algebraic, trigonometric, exponential, or other mathematical operations. Solving an equation involves finding the values of the variables that make the equation true.
To find the standard form of the equation for a circle, we can start by finding the center and radius of the circle using the given endpoints of a diameter.
The center of the circle is the midpoint of the diameter, which can be found by averaging the coordinates of the two endpoints. Let's denote the coordinates of the endpoints of the diameter as (x1, y1) and (x2, y2) respectively.
In this case, the coordinates of the endpoints are (x1, y1) = (-6, -1) and (x2, y2) = (-8, -11). Using the midpoint formula, we can find the center of the circle:
Center = ((x1 + x2)/2, (y1 + y2)/2)
Plugging in the values, we get:
Center = ((-6 + (-8))/2, (-1 + (-11))/2)
Center = ((-14)/2, (-12)/2)
Center = (-7, -6)
So, the center of the circle is (-7, -6).
The radius of the circle is half the length of the diameter, which can be found using the distance formula between the two endpoints of the diameter. Let's denote the distance between the endpoints as d.
The distance formula is given by:
d = sqrt((x2 - x1)² + (y2 - y1)²)
Plugging in the values, we get:
d = sqrt((-8 - (-6))² + (-11 - (-1))²)
d = sqrt((-2)² + (-10)²)
d = sqrt(4 + 100)
d = sqrt(104)
So, the radius of the circle is sqrt(104).
Now that we have the center and radius of the circle, we can write the standard form of the equation of the circle as:
(x - h)² + (y - k)²= r²
where (h, k) is the center of the circle and r is the radius of the circle.
Plugging in the values, we get:
(x - (-7))² + (y - (-6))² = (sqrt(104))²
(x + 7)² + (y + 6)²= 104
So, the standard form of the equation for the circle with endpoints of a diameter at (-6, -1) and (-8, -11) is (x + 7)² + (y + 6)² = 104
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Please help me with these 6th grade math questions, thank you!
The error which Mason made was subtracting 5 from both sides.
The correct solution is x < 16 and it is shown on the number line below.
The best way to describe the temperature in the greenhouse before the heater stopped working is that it was at least 71 degrees.
An inequality that represent this situation is x + 21 ≥ 47 and the solution is x ≥ 26.
The inequalities that can be used to represent the situation are;
D. x - 7.35 ≥ 2.87
E. x ≥ 10.22
How to write and determine the solution to the inequalities?Based on the information provided about the math test, the following inequality must be solved by students;
x - 5 < 11
By adding 5 to both sides of the inequality, we have the following:
x - 5 + 5 < 11 + 5
x < 16
Therefore, the error which Mason made was subtracting 5 from both sides.
Since the temperature dropped 6 degrees before it was fixed and it was still at least 67 degrees when the heater started working again, we can model it as follows;
x - 4 ≥ 67
x ≥ 71
Since Ramiro has $21 and wants buy a skateboard that cost $47, the amount of money that he needs can be modeled by this inequality;
x + 21 ≥ 47
x ≥ 47 - 21
x ≥ 26
In conclusion, the inequalities that can be used to represent the total amount, x, Kendra needs for the bead are;
x - 7.35 ≥ 2.87
x ≥ 2.87 + 7.35
x ≥ 10.22
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Rewrite each equation without using absolute value for the given conditions. y=|x-5|+|x+5| if x>5
Answer:
y = 2x
Step-by-step explanation:
If x > 5, then x - 5 is positive and x + 5 is also positive. So we can rewrite the equation as follows:
y = (x - 5) + (x + 5)
Simplifying the equation, we get:
y = 2x + 0
Therefore, the equation without using absolute value for the given conditions is y = 2x.
Hope this helps!
NEED HELP WILL GIVE BRAINLIEST AND WILL RATE. Show work and only need #1
The end behavior is if x becomes very large the value of f(x) also becomes very large, The function will approach zero more slowly as x approaches negative infinity, because 7 is greater than 1.
To describe the end behavior of f(x), we need to consider the limit of f(x) as x approaches positive infinity and negative infinity. We can write this as:
lim f(x) as x → ±∞ = ±∞
This means that as x becomes very large (either positive or negative), the value of f(x) also becomes very large (either positive or negative).
b. If we change the base of the exponential function from 5/7 to 7, the graph of f(x) will change in the following ways:
The function will grow faster, because 7 is greater than 5/7.
The function will start at a higher value, because f(0) = 4(7)^0 = 4.
The function will approach zero more slowly as x approaches negative infinity, because 7 is greater than 1.
c. If we add a constant to the exponential function, the graph of f(x) will be shifted vertically by the amount of the constant. In this case, the graph of f(x) will be shifted downwards by 2 units, because we are subtracting 2 from the function.
The equation of the new function is:
f(x) = 4(5/7)ˣ - 2
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x + 4y = 9
-x - 2y = 3
Hope it helps :)
[tex]x + 4y = 9 \\
-x - 2y = 3 \\ eliminate \: one \: variable \: by \\ adding \: the \: equations \\ 2y = 12 \\ divide \: both \: sides \\ y = 6 \\ substitute \: the \: value \: of \: y \\ \: into \: equation \: ...2 \\ - x - 2(6) = 3 \\ solve \: the \: equation \\ - x - 12 = 3 \\ - x = 3 + 12 \\ - x = 15 \\ x = - 15 \\ SOLUTION \\ x = - 15 \\ y = 6 \\ Hope \: it \: helps :)[/tex]
A fifth grade teacher believes that 12% of her students are late for class. If the teacher is right, what is the probability that the proportion of late students in a sample of 538 students would differ from the population proportion by less than 3%? Round your answer to four decimal places.
Answer:
Step-by-step explanation:
Given:
Proportion of students who are late for class in the population: p = 0.12
Sample size: n = 538
Margin of error: E = 0.03
The standard error of the proportion can be calculated using the formula:
SE = sqrt(p*(1-p)/n)
SE = sqrt(0.12*0.88/538)
SE = 0.019
The margin of error corresponds to a z-score at the 97.5th percentile (since we want the probability of the sample proportion being within 3% of the population proportion in either direction, which gives us a two-tailed test with an alpha level of 0.025 on each side). This z-score can be found using a standard normal distribution table or calculator and is approximately 1.96.
The margin of error can also be calculated using the formula:
E = z*(SE)
0.03 = 1.96*(0.019)
To find the probability that the sample proportion differs from the population proportion by less than 3%, we need to find the area under the standard normal distribution curve between the z-scores of -1.96 and 1.96. This area is equivalent to the probability of the sample proportion being within 3% of the population proportion. This probability can be found using a standard normal distribution table or calculator and is approximately 0.8534.
Therefore, the probability that the proportion of late students in a sample of 538 students would differ from the population proportion by less than 3% is 0.8534 or 85.34% (rounded to four decimal places)
8 cm
*****
The dimensions of a triangular prism are shown in the diagram.
12 cm-
4/10
10 cm,
34 cm
What is the volume of the triangular prism in cubic centimeters?
10 cm
✓
✓
The volume of the triangular prism shown below is 48 cm²
How to solve an equation?An equation is an expression that can be used to show the relationship between two or more numbers and variables using mathematical operators.
The area of a figure is the amount of space it occupies in its two dimensional state.
The area of triangular base = (1/2) * 12 cm * 8 cm = 48 cm²
The volume of triangular prism = area of base * height
Volume = 48 cm² * 34 cm = 1632 cm³
The volume of the triangular prism is 48 cm²
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Which is the distance between the point with the coordinates (1, 2) and the line with the equation 2x-3y = -2?
a. √13
c. 3√13
13
13
9-
b. 2√13
13
d. 6√13
13
Please select the best answer from the choices provided
A
B
C
D
0
Answer:
To find the distance between a point and a line in a plane, we can use the formula:
distance = |Ax + By + C| / √(A^2 + B^2)
where A, B, and C are the coefficients of the general form of the line equation (Ax + By + C = 0), and (x,y) are the coordinates of the point.
First, we need to rewrite the given line equation in the standard form (y = mx + b):
2x - 3y = -2
-3y = -2x - 2
y = (2/3)x + 2/3
Now we can identify the slope (m) and y-intercept (b) of the line:
m = 2/3
b = 2/3
Next, we can find the equation of the perpendicular line that passes through the point (1,2), since the distance between the point and the line will be the length of the segment connecting the point to the intersection of these two lines. The slope of a line perpendicular to a line with slope m is -1/m, so the equation of the perpendicular line passing through (1,2) is:
y - 2 = (-3/2)(x - 1)
y = (-3/2)x + (7/2)
Now we need to find the intersection of the two lines by solving the system of equations:
y = (2/3)x + 2/3
y = (-3/2)x + (7/2)
(-3/2)x + (7/2) = (2/3)x + 2/3
(-13/6)x = -5/6
x = 5/13
y = (2/3)(5/13) + 2/3
y = 11/13
So the intersection point of the two lines is (5/13, 11/13). Now we can use the distance formula to find the distance between this point and the given point (1,2):
distance = √[(5/13 - 1)^2 + (11/13 - 2)^2]
distance = √[(36/169) + (25/169)]
distance = √(61/169)
distance = √61/13
The closest answer choice is (A) √13, but the simplified expression is actually √61/13. Therefore, none of the answer choices provided are completely accurate.
Step-by-step explanation:
Use the formula for n^p r to evaluate the following expression
Answer:
Use Formula nPr, to solve the following question
6P4 = 360
Which answer Choice contains only equations? A. 2 + H = 14 and K - 25 =2 B. C-14C-14 and d+134 C. 10=3+s and 22-y D. 15+x and 55= r-1
Answer:
The answer choice that contains only equations is:
A. 2 + H = 14 and K - 25 = 2
Explanation:
A. Both expressions are equations because they have an equal sign and a variable.
B. C-14C-14 is not an equation because it doesn't have an equal sign.
C. Both expressions are equations, but 22-y is not a complete equation (missing an equal sign).
D. Both expressions are equations, but 55= r-1 is not a complete equation (missing an equal sign).
Step-by-step explanation:
find the surface area to the nearest whole number. do not round until the end. X=4 units Y= 13 units Z= 7 units (giving brainliest!!!)
The Surface area of figure is 396.896 unit².
We have,
x = 4 unit, y = 13 unit and z = 7 unit.
First Surface Area of Cylinder
= 2πrh
= 2(3.14)(4)(7)
= 175.84 unit²
and, Surface Area of Cone
= πrl
= (3.14)(4)(13.6)
= 170.816 unit²
Thus, the Surface area of figure is
= 175.84 + 170.816 + 50.24
= 396.896 unit²
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Find the following angles
The value of angle t is 126⁰.
The value of angle x is 70⁰.
The value of angle 5 is 85⁰.
What is the value of a, t, x and 5?
The value of each of the missing angles is calculated as follows;
angle b = 27⁰ (vertical opposite angles are equal)
The value of angle t is calculated as follows;
b + t + 27 = 180 ( sum of angles on a straight line)
27 + t + 27 = 180
54 + t = 180
t = 180 - 54
t = 126⁰
The value of angle x is calculated as follows;
x + 30 + 80 = 180 (sum of angle in a triangle and vertical opposite angles)
x + 110 = 180
x = 180 - 110
x = 70⁰
The value of angle 5 is calculated as follows;
65 + 70 + (180 - 40) + ∠5 = 360 (sum of angles in a quadrilateral)
65 + 70 + 140 + ∠5 = 360
275 + ∠5 = 360
∠5 = 360 - 275
∠5 = 85⁰
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What is the missing side length??
The length of the missing leg for the triangles are: x = 7.01, f = 5.4, and d = 15.1 using the Pythagoras rule.
What is the Pythagoras rule?The Pythagoras rule states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
By Pythagoras rule we can evaluate for b as follows:
x = √(7.5² - 2.5²)
x = √50
x = x = 7.0711
f = √[(√78)² - 7²]
f = √(78 - 49)
f = √29
f = 5.3852
d = 2 × √(11² × 8²)
d = 2 × √53
d = 15.0996
Therefore, the length of the missing leg for the triangles are: x = 7.01, f = 5.4, and d = 15.1 using the Pythagoras rule.
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A pole that is 3.3 m tall casts a shadow that is 1.71 m long. At the same time, a nearby building casts a shadow that is 48.25 m long. How tall is the building? Round your answer to the nearest meter.
The height of the building is given by h = 93.5 m
Given data ,
Let the proportion be represented as A
Now , the value of A is
The height of the pole is 3.3 meters and its shadow is 1.71 meters long. We can set up a proportion to find the height of the building:
Height of pole / Length of pole's shadow = Height of building / Length of building's shadow
3.3 m / 1.71 m = x / 48.25 m
Now we can cross-multiply and solve for "x":
3.3 m * 48.25 m = 1.71 m * x
159.825 m² = 1.71 m * x
x = 159.825 m² / 1.71 m
x ≈ 93.5 m
Hence , the height of the building is approximately 93.5 meters
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Tom and Philip were given the graph of a linear function and asked to find the slope. Tom says that the slope is 12 while Philip says that the slope is 2.
Which reason correctly justifies Tom's answer?
Without seeing the graph of the linear function, it is impossible to determine if Tom's answer of 12 is correct or incorrect. However, it is important to understand the concept of slope and how it is calculated for a linear function.
The slope of a linear function represents the rate at which the y-coordinate changes for each unit increase in the x-coordinate. In other words, it measures the steepness of the line. Mathematically, the slope of a line is defined as the ratio of the change in the y-coordinate to the change in the x-coordinate between any two points on the line.
To calculate the slope of a line given its graph, one can choose any two points on the line and find the difference in their y-coordinates and x-coordinates. The slope is then the ratio of the change in y-coordinates to the change in x-coordinates. This can be expressed as:
slope = (change in y-coordinate) / (change in x-coordinate)
Now, if Tom has correctly identified two points on the line and calculated the difference in their y-coordinates and x-coordinates, and if he has obtained a ratio of 12 for the change in y-coordinate to the change in x-coordinate, then his answer of 12 for the slope would be correct.
However, it is also possible that Tom made an error in his calculation, or that he misread the graph, and obtained an incorrect answer. Therefore, it would be necessary to verify his calculations by checking the points he used and the formula he applied.
In conclusion, without further information about the graph of the linear function and the points chosen by Tom to calculate the slope, it is impossible to determine if his answer of 12 is correct or incorrect.
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Find the value of x, y, and z in the parallelogram below.
(-3Z-4)°
85°
(-4y+5)
(8x-1)
The values of x, y and z of the given parallelogram are: x = 12, y = -20 and z = -32
What is the value of the angle in the parallelogram?A quadrilateral has two pairs of sides are parallel to each and the four angles at the vertices are not equal to the right angle, and then the quadrilateral is called a parallelogram. Also, the opposite sides are equal in length.
The key properties of angles of a parallelogram are:
- If one angle of a parallelogram is a right angle, then all the angles are right angles
- Opposite angles of a parallelogram are equal (or congruent)
- Consecutive angles are supplementary angles to each other (that means they add up to 180 degrees)
Consecutive angles are supplementary and as such:
85 + 8x - 1 = 180
8x = 181 - 85
8x = 96
x = 96/8
x = 12
Opposite angles are equal and as such:
85 = -4y + 5
-4y = 80
y = -20
Similarly:
85 - 3z - 4 = 180
3z = -96
z = -96/3
z = -32
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