The measurement of angle DBC is equal to 33°, here we have to know the meaning of angle.
What is Angle?Angle is the measurement distance between two straight line or ray when they meet and it can also say that their one part is opening and other part is joint.
We have given that, ∠ABD = 4x, ∠DBC = 3x and measure of angle ABC is equal to 77°.
So ∠ABD + ∠DBC = ∠ ABC
⇒ 4x + 3x = 77°
⇒ 7x = 77°
⇒ x = 11°
So, ∠ ABD = 4x = 4 * 11 = 44°
and, ∠DBC = 3x = 3 * 11 = 33°
Therefore, angle DBC is equal to 33°.
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Complete Question:
What is the measure of angle DBC if the measure of angle ABD is represented by 4x, the measure of angle DBC is represented by 3x and the measure of angle ABC is 77° ?
What are the 5 most common Pythagorean triples?
The 5 most common Pythagorean triples are ( 3 , 4 , 5 ) , ( 5 , 12 , 13 ) ,
( 6 , 8 , 10 ) , ( 9 , 12 , 15 ) , and ( 15 , 20 , 25 ) .
Pythagorean triples:
Any three positive integers that completely satisfy the Pythagorean theorem is considered a Pythagorean triple number. According to the theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a right triangle. A Pythagorean triple consists of the three sides of a right triangle. In this article, you will learn how to create multiple Pythagorean triples.
A Pythagorean triple consists of the three natural numbers a, b, c such that a² + b² = c². These triples are usually written as (a, b, c), examples
(3, 4, 5) are well known. If (a, b, c) is a Pythagorean triple, then (ka, kb, kc) is also a Pythagorean triple for all natural k. A primitive Pythagorean triplet is a triplet in which a, b, and c are coprime (i.e., have no common divisor greater than 1). For example, (3, 4, 5) is a basic Pythagorean triple, but (6, 8, 10) is not.
A triangle whose sides form a Pythagorean triple is called a Pythagorean triangle and is necessarily a right triangle.
This name comes from the Pythagorean theorem, which states that the side lengths of each right triangle satisfy the formula a² + b² =c². A Pythagorean triple gives the length of three integers of the sides of a right triangle. However, right triangles whose sides are not integers do not form a Pythagorean triple. For example, a triangle with sides a = b = 1 and c = √2 but, (1,1,2) is not a Pythagorean triple because √2 is not an integer. Also, the numbers 1 and √2 do not have a common multiple because √2 is irrational.
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given that the absolute value of the difference of the two roots of $ax^2 + 5x - 3 = 0$ is $\frac{\sqrt{61}}{3}$, and $a$ is positive, what is the value of $a$?
The value of "a" is approximately 1.83 given that the absolute value of the difference of the two roots of the quadratic equation "ax squared plus 5x minus 3 equals 0" is the square root of 61 divided by 3, and "a" is positive.
We are given that the absolute value of the difference between the two roots of the quadratic equation "ax squared plus 5x minus 3 equals 0" is the square root of 61 divided by 3, and "a" is positive. We need to find the value of "a".
Let the two roots of the equation be r1 and r2, where r1 is not equal to r2. Then, we have:
|r1 - r2| = √(61) / 3
The sum of the roots of the quadratic equation is given by r1 + r2 = -5 / a, and the product of the roots is given by r1 × r2 = -3 / a.
We can express the difference between the roots in terms of the sum and product of the roots as follows:
r1 - r2 = √((r1 + r2)² - 4r1r2)
Substituting the expressions we obtained earlier, we have:
r1 - r2 = √(((-5 / a)²) + (4 × (3 / a)))
Simplifying, we get:
r1 - r2 = √((25 / a²) + (12 / a))
Taking the absolute value of both sides, we get:
|r1 - r2| = √((25 / a²) + (12 / a))
Comparing this with the given expression |r1 - r2| = √(61) / 3, we get:
√((25 / a²) + (12 / a)) = √(61) / 3
Squaring both sides and simplifying, we get:
25 / a² + 12 / a - 61 / 9 = 0
Multiplying both sides by 9a², we get:
225 + 108a - 61a² = 0
Solving this quadratic equation for "a", we get:
a = (108 + √(108² + 4 × 61 × 225)) / (2 × 61)
Since "a" must be positive, we take the positive root:
a = (108 + √(108² + 4 × 61 × 225)) / (2 × 61) ≈ 1.83
Therefore, the value of "a" is approximately 1.83.
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The question is -
Given that the absolute value of the difference of the two roots of the quadratic equation "ax squared plus 5x minus 3 equals 0" is the square root of 61 divided by 3, and "a" is positive, what is the value of "a"?
Which value is a solution to the equation m-3.8 -0?
a. m = 0. b. m = 0.8
c. m = 3. d. m = 3.8
Answer:
d. m = 3.8Step-by-step explanation:
m - 3.8 - 0
m = 3.8 + 0
m = 3.8
Which linear equation shows a proportional relationship?
y equals two thirds times x
y equals negative 3 times x minus one seventh
y equals three fourths times x minus 5
y equals 3 times x plus 7
The first equation, y equals two thirds times x, shows a proportional relationship because the ratio of y to x is constant.
What is ratio?Ratio is a numerical comparison of two or more values. It is a mathematical expression that shows the relationship between two or more quantities. Ratios are used to compare the relative size of two or more values, to measure changes over time, to quantify proportions, and to evaluate relationships between sets of data. In some cases, ratios can also be used to compare absolute values. Ratios are often expressed in the form of fractions, although they can also be expressed as decimals or percentages. Ratios can be used to compare two or more items or groups of data, and can be expressed as a single number or in a range of numbers.
This means that as x increases, y will increase at the same rate. Similarly, as x decreases, y will decrease at the same rate.
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Can someone help me with the questions in the picture?
Answer:
\( y = 8 \)
Step-by-step explanation:
Equation of the line that passes through (-2, 8) with a slope of 0, can be written in point-slope form, \( y - y_1 = m(x - x_1) \) and also in slope-intercept form, \( y = mx + b \).
Using a point, (-2, 8) and the slope (m), 0, substitute x1 = -2, y1 = 8 and m = 0 in \( y - y_1 = m(x - x_1) \).
Thus:
\( y - 8 = 0(x - (-2)) \)
\( y - 8 = 0 \)
Rewrite in slope-intercept form
\( y - 8 + 8 = 0 + 8 \) (addition property of equality)
\( y = 8 \)
what is the solution to 2x^2+x+3=0
The solutions of the quadratic equation are:
x = (-1 + i√23)/4
x = (-1 - i√23)/4
How to solve the quadratic function?For a general quadratic:
a*x^2 + b*x + c = 0
The solutions are given by the quadratic formula
\(x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a}\)
Here we have the quadratic equation:
2x^2 + x + 3 = 0
\(x = \frac{-1 \pm \sqrt{1^2 - 4*2*3} }{2*2} \\\\x = \frac{-1 \pm \sqrt{-23} }{4}\)
So we will have two complex solutions, these are:
x = (-1 + i√23)/4
x = (-1 - i√23)/4
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How many solutions for the system of equations 4x + 6y = 12,6x +9y = 18
Answer:
infinite number of solutions
Step-by-step explanation:
Given the 2 equations
4x + 6y = 12 → (1)
6x + 9y = 18 → (2)
Equation (2) is a multiple of (1)
Each term has been multiplied by 1.5
Thus the 2 equations are basically the same equation.
This indicates there are infinite solutions to the system
if they are not perpendicular, then the two lines do not intersect.
is this statement true or false and why?
Answer: True, perpendicular lines intersect so if the lines didn’t they wouldn’t be perpendicular
Step-by-step explanation:
You are the director of the customer service center in Company Alpha. You find that the mean time between calls to the center is 6 minutes with standard deviation of 4 minutes. The effective response time is 11 minutes with a standard deviation of 20 minutes. (a) Identify the following parameters: ta
tθ
∂a
∂θ
ra:
rθ:
The identified parameters are:
ta = 6 minutes
tθ = 11 minutes
∂a = 4 minutes
∂θ = 20 minutes
ra = 1/6 minutes^(-1)
rθ = 1/11 minutes^(-1)
ta: Mean time between calls to the center
tθ: Effective response time
∂a: Standard deviation of the time between calls to the center
∂θ: Standard deviation of the effective response time
ra: Rate of calls to the center (inverse of ta, i.e., ra = 1/ta)
rθ: Rate of effective response (inverse of tθ, i.e., rθ = 1/tθ)
Given information:
Mean time between calls to the center (ta) = 6 minutes
Standard deviation of time between calls (∂a) = 4 minutes
Effective response time (tθ) = 11 minutes
Standard deviation of effective response time (∂θ) = 20 minutes
Using this information, we can determine the values of the parameters:
ta = 6 minutes
tθ = 11 minutes
∂a = 4 minutes
∂θ = 20 minutes
ra = 1/ta = 1/6 minutes^(-1)
rθ = 1/tθ = 1/11 minutes^(-1)
So, the identified parameters are:
ta = 6 minutes
tθ = 11 minutes
∂a = 4 minutes
∂θ = 20 minutes
ra = 1/6 minutes^(-1)
rθ = 1/11 minutes^(-1)
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Write an equivalent expression to show the relationship of multiplication and addition
Answer:
0 plus 0 is equals to 0 times 0.
Given � ∥ � m∥n, find the value of x. m n t (x-25)° (6x-5)°
The value of x when given the equation m∥n, and the angle measures (x-25)° and (6x-5)° is 4.
The angle measures given are (x-25)° and (6x-5)°. We can use the rules of parallel lines and transversals to find the value of x.
Since line is parallel to line m, we know that corresponding angles are equal. This means that (x-25)° is equal to some other angle that is also (x-25)°.
Similarly, since line m is parallel to line n, we know that corresponding angles are equal. This means that the angle that is equal to (x-25)° is also equal to some other angle in line n.
Using the same logic, we can find the measure of the other angle in line n that is equal to (6x-5)°.
Now, we have two angles in line n that are equal in measure: one is (x-25)° and the other is (6x-5)°.
We can set up an equation to solve for x:
(x-25)° = (6x-5)°
Simplifying this equation, we get:
x - 25 = 6x - 5
Solving for x, we get:
x = 4
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Complete Question:
Given m ∥ n, find the value of x. when m = (x-25)° and n = (6x-5)°
n-3x2
Help please ASAP
Answer: n - 6
Step-by-step explanation:
Multiply -3 and 2.
-3 x 2 = -6
n -6
sorry if this is incorrect
Answer:
24
Step-by-step explanation:
-3N^2=24
Move all terms to the left:
-3N^2-(24)=0
a = -3; b = 0; c = -24;
Δ = b2-4ac
Δ = 02-4·(-3)·(-24)
Δ = -288
Delta is less than zero, so there is no solution for the equation!Q
Hope this helps You! :D
. Equivalent Units Calculations—Weighted Average Method Terrace Corporation makes an indus- trial cleaner in two sequential departments, Compounding and Drying. All materials are added at the beginning of the process in the Compounding Department. Conversion costs are added evenly throughout each process. Terrace uses the weighted average method of process costing. In the Com- pounding Department, beginning work-in-process was 2,000 pounds (60% processed), 36,000 pounds were started, 34,000 pounds were transferred out, and ending work-in-process was 70% processed. Calculate equivalent units for the Compounding Department for August 2019.
The equivalent units for the Compounding Department for August 2019 is 57,000 pounds.
Here is the explanation -
To calculate the equivalent units for the Compounding Department in August 2019 using the weighted average method, we need to consider the units that were started and completed, as well as the ending work-in-process.
Step 1: Calculate the equivalent units for units started and completed:
- 36,000 pounds were started.
- 34,000 pounds were transferred out.
Equivalent units for units started and completed = 34,000 pounds.
Step 2: Calculate the equivalent units for ending work-in-process:
- Ending work-in-process was 70% processed.
- Beginning work-in-process was 2,000 pounds (60% processed).
Equivalent units for ending work-in-process = (70% x Ending work-in-process) + (60% x Beginning work-in-process)
Equivalent units for ending work-in-process = (70% x 2,000 pounds) + (60% x 36,000 pounds)
Equivalent units for ending work-in-process = 1,400 pounds + 21,600 pounds
Equivalent units for ending work-in-process = 23,000 pounds.
Step 3: Calculate the total equivalent units:
Total equivalent units = Equivalent units for units started and completed + Equivalent units for ending work-in-process
Total equivalent units = 34,000 pounds + 23,000 pounds
Total equivalent units = 57,000 pounds.
Therefore, the equivalent units for the Compounding Department for August 2019 is 57,000 pounds.
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Can anyone write the quadratic of the equation in factored form?
The factored form of the quadratic equation is given as follows:
y = 3(x + 0.6667)(x - 6).
How to obtain the factored form of the quadratic equation?The quadratic equation for this problem is defined as follows:
3x² - 16x - 7 = 5.
3x² - 16x - 12 = 0.
The coefficients are given as follows:
a = 3, b = -16, c = -12.
Hence the discriminant is of:
D = (-16)² - 4(3)(-12)
D = 400.
Then the roots are of:
x = (16 - sqrt(400))/6 = -0.6667.x = (16 + sqrt(400))/6 = 6.Considering the leading coefficient of 3 and the roots, the factored form of the equation is given as follows:
y = 3(x + 0.6667)(x - 6).
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15+w=3w-11 then solve for w
Answer:
w=13
Step-by-step explanation:
Answer:
w =13
Step-by-step explanation:
\(15+w=3w-11\)
Collect like terms
\(15+11 =3w-w\\\)
Simplify
\(26 = 2w\)
Divide both sides of the equation by 2
\(\frac{26}{2} = \frac{2w}{2}\)
Simplify
\(13 = w\)
Switch sides
\(w =13\)
the ratio of boys to girls at a local sports club is 3 to 1. If there are 45 girls, how many boys are there?
Answer:
Step-by-step explanation: for you to get the answer you have to understand that 3 to 1 means to multiply by 3 so 45x3=135
Answer:
135
Step-by-step explanation:
1x = 45
3x (boys) = 45 ×3
= 135
Please answer this question
Range: lowest possible y-value to the highest possible y-value
In this case, the graph spans from -4 to 1, taking on all of the y-values between those two points. But, the graph also has a straight line at y=3.
Range: -4 < y <= 1 or {3}
Hope this helps!
consider a binomial experiment with 2 trials and p 0.4. a. compute the probability of 1 success, f(1). b. compute f(0). c. compute f(2). d. find the probability of at least one success. e. find the expected value, variance, and standard deviation
The expected value is 0.8, variance is 0.48, and standard deviation is 0.693 with the given probability.
a. The probability of getting one success in two trials with p=0.4 is given by the binomial probability formula:
f(1) = 2C1 * (0.4)^1 * (0.6)^1 = 0.48
b. The probability of getting zero successes is:
f(0) = 2C0 * (0.4)^0 * (0.6)^2 = 0.36
c. The probability of getting two successes is:
f(2) = 2C2 * (0.4)^2 * (0.6)^0 = 0.16
d. The probability of at least one success is:
P(at least one success) = 1 - P(no success)
= 1 - f(0)
= 1 - 0.36
= 0.64
e. The expected value of a binomial distribution with n trials and probability of success p is given by:
E(X) = np
In this case, n = 2 and p = 0.4, so:
E(X) = 2 * 0.4 = 0.8
The variance of a binomial distribution is given by:
Var(X) = np(1-p)
So:
Var(X) = 2 * 0.4 * 0.6 = 0.48
The standard deviation is the square root of the variance:
SD(X) = sqrt(Var(X)) = sqrt(0.48) = 0.693.
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Can someone please help me with this three part question? Use the image to solve part A, B, and C.
Part A: Amanda has a new pool in her backyard. What is the area of Amanda’s yard that will be taken up by the new pool?
Part B: The pool instructions recommended that the pool not to be filled to the top. It is recommended to stop filling 6 inches from the top. What volume of water should the pool hold according to the recommended filling instructions.
Part C: Find the total cost of filling the pool if each cubic foot of water costs $0.29
The area that will be taken up is 183.75 square feet, the volume of water is 131.25 cubic feet, and the cost of filling the pool is.
What is the area that will be taken up by the new pool?To calculate the total area follow this procedure:
Area: 2 (lh +wh + lw )
Area: 2 (8.75x 3.5 + 5 x 3.5 + 8.75 x 5)
Area: 2 ( 30.625 + 17.5 +43.75)
Area: 2 x 91.875 = 183.75 square feet
What is the volume the pool should hold?The volume follow this procedure:
Volume: length x width x height - 6 inches or 0.5 feet
Volume: 8.75 feet x 5 feet x 3 feet = 131.25 cubic feet
What is the cost of filling the pool?To do this, just multiply the volume by the cost:
131.25 cubic feet x $0.29 = $38.06
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(2x - 4)
what’s the value of x?
Answer:
x=2
Step-by-step explanation:
x= 4/2
x =2
how do u find a slope of something?
You divide X by Y
If you have a ratio of X:Y then to find the slope you simply divide the Y axis by the X axis to get a constant rate (unit rate, etc).
Hope this helps and have a nice day.
-R3TR0 Z3R0
Find an exact value. tangent of seven pi divided by twelve
Answer: negative 2 minus radical 3
Step-by-step explanation:
We can use the tangent half-angle formula to find the exact value of tangent of 7π/12:
tan(θ/2) = ±√[(1-cosθ)/1+cosθ)]
Here, θ = 7π/6, and cos(7π/6) = -sqrt(3)/2.
Substituting these values, we get:
tan(7π/12) = ±√[(1-(-sqrt(3)/2))/(1+(-sqrt(3)/2))]
= ±√[(2+sqrt(3))/(2-sqrt(3))]
Multiplying the numerator and denominator by (2+sqrt(3)), we get:
= ±√[(2+sqrt(3))^2/(4-3)]
= ±√[(2+sqrt(3))^2]
= ±(2+sqrt(3))
Since 7π/12 lies in the second quadrant, and tangent is negative in the second quadrant, the exact value of tangent of 7π/12 is - (2+√3)
-5(5a – 2) +14 need help
Answer:24-25a
Step-by-step explanation:
1. Solve the following equation. -5p = -75
Answer:
15
Step-by-step explanation:
-5 x 15 = -75
This is according to the rule -a ÷ a = -a and -a x a = -a. Where a negative divided/multiplied by a positive number equals a negative number.
-75 ÷ -5 = 15
-75 ÷ 15 = -5
What is 360 divided by 11.
constant rate of change = 4
Y -intercept = 7
Answer:
You would write it like -
y = 7 + 4x
or y = 4x + 7
Which number line best shows how to solve -8 - (-6)? (5 points) Group of answer choices A number line from negative 10 to 10 is shown with numbers labeled at intervals of 2. An arrow is shown from point 0 to negative 8. Another arrow points from negative 8 to negative 6. A number line from negative 10 to 10 is shown with numbers labeled at intervals of 2. An arrow is shown from point 0 to negative 6. Another arrow points from negative 6 to 2. A number line from negative 10 to 10 is shown with numbers labeled at intervals of 2. An arrow is shown from point 0 to negative 8. Another arrow points from negative 8 to negative 2. A number line from negative 10 to 10 is shown with numbers labeled at intervals of 2. An arrow is shown from point 0 to negative 6. Another arrow points from negative 6 to negative 8.
A number line showing the solution of -8 - (-6) is : A number line from negative 10 to 10 is shown with numbers labeled at intervals of 2. An arrow is shown from point 0 to negative 8. Another arrow points from negative 8 to negative 2.
What is Number Line?A number line is a straight line drawn horizontally where the numbers are placed at an equal intervals.
Given expression is -8 - (-6).
That is the number -6 is subtracted from the number -8.
So we have to first draw an arrow to the number -8.
Then we have to draw an arrow of length -6 units from the number -8.
Then the arrow will stop at -2, which is the solution.
Hence the solution of the expression is -2.
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√
A scientist measured the water pressure at different depths. She made a table showing her findings. The x-values
represent the depth, in meters. The y-values represent the pressure in atmospheres (atm).
0
15
30
0
3
6
Assuming there is a proportional relationship, which additional set of values could be included in the table?
(10,2)
(40,9)
(50,38)
(100, 76)
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The additional set of values which could be included in the table is; (10,2).
Which additional set of values can be included in the table?As evident in the task content, it follows that for a 15 unit increase in x, depth, there is a 3 unit increase in y, pressure.
On this note, it follows that with each 5 unit increase in x corresponds to 1 unit increase in y.
And ultimately, at x = 10, y = 2 × 1 = 2.
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Write the letter of the property, definition, or postulate that justifies each statement.
11. If m/ABC = 90°, then ZABC is a right angle.
12. If m23+ m24 = 180°, then 23 and 24 are
supplementary angles.
13. If m/PQR = m/RST, then ZPQR = ZRST
14. If 21 and 22 form a right angle, then 21 and 22
are complementary angles.
15. If ZX and Y are supplementary and ZX and Z
are supplementary, then 2Y = LZ
16. If ZJ and ZK are vertical angles, then ZJ = ZK
A. Definition of Congruence
B. Definition of Angle Bisector
C. Definition of Complementary Z's
D. Definition of Supplementary Z's
E. Definition of Perpendicular
F. Definition of a Right Angle
G. Angle Addition Postulate
H. Vertical Angles Theorem
I. Complement Theorem
J. Linear Pair (Supplement) Theorem
K. Congruent Complements Theorem
L. Congruent Supplements Theorem
17. If ZPQR and ZSTU are complementary angles, then mZPQR+ m2STU = 90°.
18. If 25 and 26 form a linear, then 25 and 26 are supplementary angles.
Answer:
Step-by-step explanation:
A bag contains 16 lottery balls, numbered 1-16. A ball is drawn, not replaced, then another is drawn. The events are:
independent or dependent?
Answer:
independent
Step-by-step explanation: