Answer:
Step-by-step explanation:
To find the length of JL in the right triangle JKL, we can use the Pythagorean theorem, which states that in a right triangle, the sum of the squares of the lengths of the two shorter sides equals the square of the length of the hypotenuse (the longest side). In this case, JL is the hypotenuse and JK and KL are the two shorter sides.
Since K is a right angle in triangle JKL, we can find the lengths of JK and KL using the given information. We have KM = 6 and JM = 8, so we can use those values to find JK and KL:
JK = √(JM^2 - KM^2) = √(8^2 - 6^2) = √(64 - 36) = √(28) = 2√(7)
KL = KM = 6
Finally, to find JL, we can use the Pythagorean theorem:
JL = √(JK^2 + KL^2) = √( (2√(7))^2 + 6^2) = √(4 * 7 + 36) = √(52) = 2√(13)
So, JL = 2√(13).
Find the value of the following expression and round to the nearest integer:
Answer:
53
Σ900(1.04)"+1
n=1
Answer:
The expression is a summation, or the sum of a sequence of terms. Each term is equal to 900 * (1.04)^n+1, where n starts at 1 and goes up to infinity.
To calculate this sum, we would need to find the limit of the sequence as n approaches infinity. However, finding the exact value of this sum is not possible and would require the use of mathematical tools like mathematical analysis.
To estimate the value, we can use a calculator or spreadsheet to calculate the sum for a finite number of terms and then see how the sum changes as we increase the number of terms. For example, if we calculate the sum for n = 1 to 100, we would get an estimate of the value. If we then calculate the sum for n = 1 to 200, we would get a closer estimate.
In this case, we can round the expression to the nearest integer, which would be 53.
Step-by-step explanation:
4 women and 5 men are eligible to be in a committee of three. find the probability that the committee has exactly two woman.
The probability that the committee has exactly two woman is 0.1758.
Probability determines the likelihood of an event occurring: P(A) = f / N. Odds and probability are related but odds depend on the probability. You first need probability before determining the odds of an event occurring.The ratio of the favorable outcomes to the all possible outcomes.
Given that, 4 women and 5 men are eligible to serve on a committee.
A committee of 3 is randomly selected.
Choosing 2 women out of 3 women is
³[tex]C_{2}[/tex]
= 3
Choosing 1 men out of 5 men is
5C1
= 5
Total number of eligible person is = (4+5)=9
Choosing 3 member out of 9 member is
9C3
=84
The required probability is
=3*5/84
0.1785
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Find the exact value of sin V in simplest radical form.
√74
7
The exact value of sin V in simplest radical form is 0.813.
What is law of sines?
For any triangle ABC, with side measures |BC| = a. |AC| = b. |AB| = c,
we have, by law of sines,
[tex]\dfrac{sin\angle A}{a} = \dfrac{sin\angle B}{b} = \dfrac{sin\angle C}{c}[/tex]
Remember that we took
[tex]\dfrac{\sin(angle)}{\text{length of the side opposite to that angle}}[/tex]
Given;
Sin ratio √74:7
Now,
AB/sinA=BC/sinB
√74/sinA = 7/sinB
√74/sin90 = 7/sinB
sinB=7/√74
sinB=0.813
Therefore, the answer of sin V will be 0.813.
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What percentage of the marbles in the jar are white?
O 20%
O 40%
O 60%
O 80%
The percentage of white marbles on the jar is obtained dividing the number of white marbles by the total number of marbles.
How to calculate a percentage?A percentage is calculated applying a proportion, dividing the number of total outcomes by the number of desired outcomes, and then multiplying by 100%.
The outcomes for this problem are given as follows:
Desired: number of white marbles.Total: total number of marbles.Missing InformationThe problem is incomplete, hence the standard procedure to obtain the percentage of white marbles was presented.
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what’s wrong with the question
The graph is wrong because of less than or equal to sign. the correct inequality for the given graph would be y ≥ 3x - 2.
What is inequality?
In Mathematics, the relationship between two values that are not equal is defined by inequalities. Inequality means not equal. Generally, if two values are not equal, we use “not equal symbol (≠)”. But to compare the values, whether it is less than or greater than, different inequalities are used.
The given graph is wrong for the given inequality y ≤ 3x - 2
The correct graph for the given inequality is shown below.
The given graph would be correct for the inequality
y ≥ 3x - 2.
Hence, the graph is wrong because of less than or equal to sign. the correct inequality for the given graph would be y ≥ 3x - 2.
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Jack bought 5 pounds5 pounds5, start text, space, p, o, u, n, d, s, end text of Halloween candy. He gave out 3 pounds3 pounds3, start text, space, p, o, u, n, d, s, end text of the candy to trick or treaters and ate 10 ounces10 ounces10, start text, space, o, u, n, c, e, s, end text of the candy.
Number of candies that will be left with Jack is 1.375 pounds if the total candies were 5 pounds.
What is Subtraction?Subtraction can be done for any numbers or algebraic expressions.
It is the process of taking out certain value from a given amount of number.
The process of subtraction can also be called as finding the difference.
Given that,
Total candies that Jack bought = 5 pounds
Candies given to trick or treaters = 3 pounds
Candies left = 5 - 3 = 2 pounds
Amount of candies ate = 10 ounces
16 ounces = 1 pound
10 ounce = 10 / 16 pounds = 0.625 pounds
Amount of candies ate in pounds = 0.625 pounds
Candies left = 2 - 0.625 = 1.375 pounds
Hence the amount of candies left is 1.375 pounds.
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Your question is incomplete. The complete question is given below.
Jack bought 5 pounds of Halloween candy. He gave out 3 pounds of the candy to trick or treaters and ate 10 ounces of the candy. How many ounces of Halloween candy does jack have?
Which expressions have a constant? Select two answers.
A. 3x²
B. 2x - 4
C. 8x + y
D. 5y
E. 7+4x
Step-by-step explanation:
The constant in an expression is the number without any letters attached to it.
Looks like B and E are the only ones with constant. The other 3 only have numbers attached to numbers
Zoe ran a lemonade stand 5 times last summer. The numbers of lemons needed depended on
the number of customers each time
The standard deviation of the number of lemons used is equal to 14.7.
How to calculate the mean?Mathematically, the mean for these set of data would be calculated by using this formula:
Mean = [F(x)]/n
F(x) = 47 + 45 + 61 + 44 + 16
F(x) = 213.
Mean = 213/5
Mean = 42.6
Next, we would calculate the standard deviation of this data set by using this formula:
SD = √(1/n × ∑(xi - u₁)²)
SD = √(1/5 × (47 - 42.6)² + (45 - 42.6)² + (61 - 42.6)² + (44 - 42.6)² + (16 - 42.6)²)
Standard deviation, SD = √(1073.2/5)
Standard deviation, SD = 14.7.
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Graph the points, connect them in orden, find the perimeter of the polygon (-1,-1),(-1,1),(1,1),(3,-3)
Answer: the perimeter of the polygon is 29cm
Step-by-step explanation:
HELLLPPPP PLEASEEEEEEEEEEEEE
Answer: look at the image for the answer and the solution
Step-by-step explanation:
Answer: the home of it is 78 degrees
Step-by-step explanation:
as the angular bisector is shown then we can say that its right
In a scale drawing of the solar system, the scale is 1 mm = 500 km. For a planet
with a diameter of 8500 kilometers, what should be the diameter of the drawing of
the planet?
In a scale drawing of the solar system, the scale is 1 mm = 500 km. For a planet with a diameter of 8500 kilometers, 17.5 millimeters is the correct answer.
What is millimeters?A millimeter, abbreviated mm, is the smallest unit for length in the metric, or Standard International, system of measurement. It is used to measure small lengths and for precise measurements. Millimeters can be converted to either units within the metric system or the customary system of measurement.
Divide 8500 kilometers by which 500 km equals 17.5 millimeters.
Therefore, In a scale drawing of the solar system, the scale is 1 mm = 500 km. For a planet with a diameter of 8500 kilometers, 17.5 millimeters is the correct answer.
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Some wooden chest in a store. A green chest has a length out 165cm a width of 70cm and a height of 10cm. If another box, a blue box is proportional in size, what is is length if it's width is 18cm
The blue box measures about 641.667 cm in length.
What do length and width mean?The width and length of a figure indicate its breadth and length, respectively. The term "breadth" is also used to describe width. Although breadth and width are synonymous (thus the idiom hair's breadth, denoting a very small width), there are two significant differences between the two.
We are aware that the blue box's width is 18 cm, which is smaller than the green box's width (70cm).
As a result, the value of "k" must be lower than 1. By creating a proportion, we can determine the value of "k":
width of green box / width of blue box = k
70 / 18 = k
k = 70/18
k ≈ 3.8889
So the factor "k" is approximately 3.8889. To find the length of the blue box, we can use this factor to scale the length of the green box:
length of blue box = k * length of green box
length of blue box = 3.8889 * 165cm
length of blue box ≈ 641.667cm
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5) There are 7,213 applicants Only one half of the applicants which is about will be accepted in the program for the astroment progogiem
In a case whereby there are 7213 applicants for the astronaut program only one half of the applicants which is about 3607 applicants will be accepted into the program.
How can the number of the applicants be determined?The concept that will be used here is multiplication. One of the four fundamental mathematical operations, along with addition, subtraction, and division, is multiplication. Multiply in mathematics refers to the continual addition of sets of identical size.
The symbols for multiplication are cross (), asterisk (*), and dot (). You seem to utilize the cross a lot when you write in your notebooks. In both algebra and computer languages, the asterisk and dot are symbols (higher mathematics).
Total applicants =7213 applicants
Then one half of the applicants = 1/2 of 7213
=7213/2
= 3607 applicants
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complete question:
There are 7213 applicants for the astronaut program only one half of the applicants which is about ______will be accepted into the program
If A,B,A,B, and CC are n×nn×n invertible matrices, does the equation C−1(A+X)B−1=InC−1(A+X)B−1=Inhave a solution, XX? If so, find it.
If A, B, and C are n×n invertible matrices, then the solution for "x" in the equation "C⁻¹(A+X)B⁻¹ = Iₙ" is X = BC⁻¹ - A .
The Equation is ⇒ C⁻¹(A+X)B⁻¹ = Iₙ,
We first multiply both sides by B and C to remove the inverses ;
⇒ C⁻¹(A+X)B⁻¹×BC = I×BC ;
Simplifying, we get ;
⇒ C⁻¹(A+X)C = B ;
Next, we can multiply both sides by C⁻¹ to separate (A+X) ;
⇒ (A+X)C×C⁻¹= B×C⁻¹ ;
Simplifying, we get:
⇒ (A+X) = BC⁻¹ ;
Now , we subtract "A" from both sides, we get ;
⇒ X = BC⁻¹ - A ;
So , the solution for X is : X = BC⁻¹ - A . This solution exists because A, B, and C are all n×n invertible matrices, which means that their inverses exist and the product of invertible matrices is also invertible.
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The given question is incomplete , the complete question is
If A, B, and C are n×n invertible matrices, does the equation C⁻¹(A+X)B⁻¹ = Iₙ have a solution, X ? If so, find it.
There are 21 pieces of $2 notes and $10 notes in an envelope. If the total value of all the notes is less than
$110, find the minimum number of $2 notes in the envelope.
Answer:
Let the number of $2 notes be x, while that of $10 notes be y.
Set two equations
x + y = 21 y = 21 - x ------- 1
2x + 10y < 110 ------ 2
Sub 1 into 2
2x + 10(21-x) < 110
2x + 210 - 10x < 110
-8x < -100
x > 12.5
Minimum number of $2 notes in the envelope = 13
the mean of this distribution is 0.009 and the sd is 0.004. would you expect about 95% of the samples to have their variances within 0.008 of 0.009? why or why not?
No, we would not expect about 95% of the samples to have their variances within 0.008 of 0.009.
The variance of a normal distribution with mean μ and variance σ^2 is given by σ^2, which in this case is equal to (0.004)^2 = 0.000016.
The variance of the sample means, on the other hand, is given by σ^2/n, where n is the sample size. In order for about 95% of the samples to have variances within 0.008 of 0.009, we would need the sample size to be approximately equal to:
n ≈ σ^2 / (0.008 - 0.009)^2 = 62500
This means that we would need very large samples for this to be true. However, if the sample size is relatively small, then the distribution of sample means will not necessarily be normal and the Central Limit Theorem may not apply.
In that case, the distribution of sample variances will not necessarily follow the same pattern as the distribution of the population variance, and it may not be possible to make predictions about the sample variances based on the population parameters.
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5. Ella checks out a book from the library. She does not read any pages that day. Starting the next day, she reads the same number of pages each day. The graph shows the number of pages Ella has left to read to finish the book. Determine the number of pages in the book. Assume that the relationship between the two quantities is linear. Library Book Number of Pages Unread 60 54 48 42 36 30 24 18 12 6 0 1 2 3 4 5 6 7 8 9 10 x Number of Days a. b. C. d. 5 5 8 48 58
The number of pages in the book is given as follows:
58 pages.
How to obtain a linear function?
The slope-intercept definition of a linear function is given as follows:
y = mx + b.
In which:
The slope m represents the rate of change.The intercept b represents the value of y when x = 0.From the graph, two points are given as follows:
(2,48) and (8, 18).
When x increases by 6, y decays by 30, hence the slope m is given as follows:
m = -30/6
m = -5.
Hence:
y = -5x + b.
When x = 2, y = 48, hence the intercept b, representing the number of pages in the book, is given as follows:
48 = -10 + b
b = 58.
Missing InformationThe graph is given by the image presented at the end of the answer.
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Dilate a square with vertices $\left(0,\ 0\right)$ , $\left(0,\ 4\right)$ , $\left(4,\ 4\right)$ , and $\left(4,\ 0\right)$ using the scale factor $k=0.5$ . What is the value of the ratio (new to original) of the perimeters? the areas?
just in case anyone was wondering
The value of the ratio (new to original) of the perimeters as required in the task content is; 0.5.
The value of the ratio (new to original) of the perimeters as required in the task content is; 0.25.
What is the constant of proportionality of the perimeter and area of the square?Recall, a dilation of a point, (x, y) using a scale factor of k is; (kx, ky).
Also; for shapes A and B;
Perimeter (A) / Perimeter (B) = k.
Also, Area (A) / Area (B) = k².
On this note, since the dilation factor of the pre-image is 0.5, it follows that the ratio of the perimeters of the new to original is; 0.5.
Also, the ratio of the area of the new to original is; 0.5² = 0.25.
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show that the following function are continuos and discontinuos
A.(f×)={×+1 ,for×less than or equai to 2
{ 2×–1 ,for 1<×<2
{×–1 ×<1
The function f(x) = [tex]\left \{ {{x+1} ,for x \leq 2 \atop {2x-1}, for 1 < x < 2} \atop {x-1} , for x < 1 \right.[/tex] is continuous to all the values.
In mathematics, a function is a rule that assigns each element from one set (called the domain) to exactly one element of another set (called the range). The continuity of a function describes how smoothly it behaves as its input values change. In this context, we will analyze the continuity of the given function.
The given function is a piecewise function, which means it has different rules for different intervals of its domain. Let's analyze each interval separately to determine if the function is continuous or discontinuous.
For x less than or equal to 2, the function is f(x) = x + 1. This is a linear function, and we know that all linear functions are continuous everywhere. Therefore, the function is continuous for x less than or equal to 2.
For 1 < x < 2, the function is f(x) = 2x - 1. This is also a linear function, and as we said before, all linear functions are continuous. Therefore, the function is continuous for 1 < x < 2.
For x less than 1, the function is f(x) = x - 1. This is also a linear function and is continuous for all values of x less than 1.
Therefore, we can conclude that the given function is continuous for all values of x.
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I nee help with this
Answer: MHT = 125; AHM = 55
Step-by-step explanation:
(2x + 11) + (6x - 7) = 180 since they are supplementary angles
8x + 4 = 180 ---- subtract 4 on both sides
8x = 176 ---- divide by 8 on both sides
x = 22
MHT = 6x - 7
6(22) - 7 = 132 - 7 = 125
AHM = 2x + 11
2(22) + 11 = 44 + 11 = 55
HELP pls will mark you the brainliest
The function among all options is y=30.5(0.7)ˣ.
What is the graph of a function?The graph of a function represents a set of all points in a plane. It helps to derive the nature of the function.
The function must satisfy the points that are given in the graph.
When x=0, y=21.35(0.7)ˣ=21.35(0.7)⁰=21.35.
But the given point is (0,30.5).
Hence, it cannot be the required function.
When x=0, y=30.5(21.35)ˣ=30.5(21.35)⁰=30.5.
When x=1, y=30.5(21.35)ˣ=30.5(21.35)¹=651.175.
But the given point is (1,21.35).
Hence, it cannot be the required function.
When x=0, y=30.5(1.3)ˣ=30.5(1.3)⁰=30.5.
When x=1, y=30.5(1.3)ˣ=30.5(1.3)¹=39.65
But the given point is (1,21.35).
Hence, it cannot be the required function.
When x=0, y=30.5(0.7)ˣ=30.5(0.7)⁰=30.5.
When x=1, y=30.5(0.7)ˣ=30.5(0.7)¹=21.35.
When x=2, y=30.5(0.7)ˣ=30.5(0.7)²=14.945≈14.95.
It satisfies all three given points.
Therefore, the required function is y=30.5(0.7)ˣ.
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Find the value of x.
6x
60°
Answer:
Step-by-step explanation:
If you are implying that the equation is "6x = 60"
Divide both sides by 6 to get just x by itself, then you'd have your answer.
X = 10
Find an Angle Measure T ✓ The optimal tilt for Keenan's solar panelis between 58° and 60° to the horizontal. Has Keenan placed his solar panel at an optimal angle? SOLUTION COMMON ERROR 18 ft
Keenan has placed his solar panel at an optimal angle.
How determine if Keenan has placed his solar panel at an optimal angle?The cosine law is a mathematical relationship between the sides and angles of a triangle. The cosine law states that:
cos(C) = (a² + b² - c²) / 2ab
where a, b, and c are the lengths of the sides of the triangle and C is the measure of one of the angles. This law can be used to find unknown side lengths or angle measures in a triangle when given the other values.
Check the attached image for labelling.
The angle we are trying to calculate is labelled C.
cos (C) = (20² + 18² - 19²) / (2*20*18)
cos (C) = 363/720
C = cos⁻¹(363/720)
C = 59.72°
Since the angle obtained is between 58° and 60°. Thus, Keenan has placed his solar panel at an optimal angle.
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I need help on this and it’s my last one please help
The number line is completed and attached.
What is a number line?A number line is a straight line that extends in both directions and is used to represent numbers. It is often used to visually demonstrate the relationships between numbers, including ordering and magnitude.
The number line is arranged in steps of 1/4 (fraction) or 0.25 (decimal), this represents the smallest tick marks
The medium sized marks represents the 0.5 line while the largest line mark represents the benchmark numbers chosen suitable to suit the numbers.
The negative part of the number line are numbered with the zero mark.
numbers like 1/8 (or 0.125) are converted to decimal and falls half way between each marked line.
2² = 4 and this is a benchmark number.
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Actividades de Apertura
a) Dos ángulos rectos.
b) Dos ángulos agudos.
c) Dos ángulos suplementarios.
d) Dos ángulos complementarios
e) Dos rectas paralelas.
f) Dos rectas perpendiculares
g) Una recta transversal.
Las actividades de apertura son descripciones de diferentes relaciones geométricas. Aquí está la explicación de cada una:
a) Dos ángulos rectos tienen una medida de 90 grados.
b) Dos ángulos agudos tienen una medida menor a 90 grados.
c) Dos ángulos suplementarios suman a 90 grados.
d) Dos ángulos complementarios suman a 90 grados.
e) Dos rectas paralelas no se cruzan.
f) Dos rectas perpendiculares se cruzan en un ángulo recto de 90 grados.
g) Una recta transversal corta a dos o más rectas, creando ángulos en los puntos de intersección.
Qué es Dos ángulos rectos?Dos ángulos rectos son dos ángulos que tienen una medida de 90 grados. En geometría, un ángulo recto es un ángulo que tiene una medida de 90 grados y se representa con una línea diagonal que forma cuatro cuartos iguales.
Los ángulos rectos son importantes en la construcción y el diseño, ya que permiten la creación de formas simples y precisas. Por ejemplo, dos ángulos rectos pueden ser utilizados para formar un cuadrado o un rectángulo, mientras que un ángulo recto y un ángulo agudo pueden ser utilizados para formar un triángulo rectángulo.
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Solve Each System By Substitution
y=-2
4x-3y=18
Answer: x=3
Step-by-step explanation:
4x-3y=18
4x-3(-2)=18
4x+6=18
(4x=12)/4
x=3
Two adjacent angles form an obtuse angle. The measure of the larger angle is six less than twice the measure of the smaller angle. Which is a possible measure for the smaller angle?
Answer:
None
Step-by-step explanation:
The reason is because none of them add up to at least 91°
62° would be your best bet but, even when you do the math 62*2= 124
124/6= 20 2/3°
62+20.66...= 82.666...
82.6666...<91°
In a class of 30 students x +10 study algebra, 10+3 study statistics, 4 study both algebra and statistics. 2x study only Algebra and 3 study neither algebra nor statistics
1. Illustrate the information one a Venn diagram.
2. How many students study;
A. Algebra
B. Only statistics
1. The Venn diagrams are attached
2. When the statistics students number = 10·x + 3, we have;
The number of students that study
Algebra = 128/11Statistic = 213/11When the statistics students number = 2·x + 3, we have;
The number of students that study
Algebra = 16Statistic = 15What is the rationale for the above response?The parameters given are;
Total number of students = 30
Number of students that study algebra n(A) = x + 10
Number of students that study statistics n(B) = 10·x + 3
Number of student that study both algebra and statistics n(A∩B) = 4
Number of student that study only algebra n(A\B) = 2·x
Number of students that study neither algebra or statistics n(A∪B)' = 3
Therefore;
The number of students that study either algebra or statistics = n(A∪B)
From set theory we have;
n(A∪B) = n(A) + n(B) - n(A∩B)
n(A∪B) = 30 - 3 = 27
Therefore, we have;
n(A∪B) = x + 10 + 10·x + 3 - 4 = 27
11·x+13 = 27 + 4 = 31
11·x = 18
x = 18/11
The number of students that study
a. Algebra
n(A) = 18/11 + 10 = 128/11
b. Statistic
n(B) = 213/11
Hence, we have;
n(A - B) = n(A) - n(A∩B) = 128/11 - 4 = 84/11
Similarly, we have;
n(B - A) = n(B) - n(A∩B) = 213/11 - 4 = 169/11
However, assuming n(B) = (2·x + 3), we have;
n(A∪B) = n(A) + n(B) - n(A∩B)
n(A∪B) = 30 - 3 = 27
Therefore, we have;
n(A∪B) = x + 10 + 2·x + 3 - 4 = 27
2·x+3 + x + 10= 27 + 4 = 31
3·x = 18
x = 6
Therefore, the number of students that study
a. Algebra
n(A) = 16
b. Statistics
n(B) = 15
Hence, we have;
n(A - B) = n(A) - n(A∩B) = 16 - 4 = 12
Similarly, we have;
n(B - A) = n(B) - n(A∩B) = 15 - 4 = 11
See the attached Venn Diagrams.
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Segment AD is an altitude of Triangle ABC.
The figure is not to scale.
Which of the following additional statements would allow us to prove that AB is congruent to AC?
AD is also an internal bisector of ΔABC, this statements prove that AB is congruent to AC.
What is the bisector of the triangle?
The bisector of a triangle is a segment that divides one of its interior angles into two equal parts and continues until it reaches the side opposite that angle. In other words, the bisector of a triangle is a line that divides each interior angle of the triangle into two equal angles.
We have given,
Segment AD is an altitude of ΔABC.
If CD ≅ BD
So, AD is the middle line of the triangle
AD is also an altitude of ΔABC.
So, AD is also an internal bisector of ΔABC
So, AB ≅ AC ............{Thereom of unity of three lines}
Hence, AD is also an internal bisector of ΔABC, this statements prove that AB is congruent to AC.
To learn more about the bisector of the triangle visit,
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Write an equation in point-slope form for the line that passes through the point with the given slope.
(–2,–4); m=3
Answer:
x + y = -6
Step-by-step explanation:
Just put x and y and add the number on the RHS
Its really not that hard
But i hope it helped
