Answer:
90 degrees
Explanation:
Please note that whenever a triangle is inscribed in a circle and one side of the triangle is a diameter of the circle as in the given figure, then the angle that is opposite the diameter of the circle is a right angle;
\(\therefore\angle BCD=90^{\circ}\)Question
8 - (-7) =
Plz help me!!!
Answer:
8-(-7)=
8(7)=
8+7=15
Step-by-step explanation:
prove me wrong
In KLM, KM is extended through point M to point N,
(3x +19)°, m/LMN = (7x + 5)°, and
m/KLM = (2x+8)°. What is the value of x?
The value of the variable "x" is 11.
We have a triangle. The vertices of the triangle are K, L, and M. The side KM is extended from point M to point N. The measures of the angles MKL, LMN, and KLM are (3x + 19)°, (7x + 5)°, and (2x + 8)°, respectively. We need to find out the value of the variable "x".
The angles LMK and LMN form a linear pair. It means they are supplementary angles. The sum of the angles is 180°.
∠LMK + ∠LMN = 180°
∠LMK + (7x + 5)° = 180°
∠LMK = 180° - (7x + 5)°
In the triangle KLM, we will use the angle sum property of a triangle. The sum of all the angles in a triangle is equal to 180°.
∠K + ∠L + ∠M = 180°
(3x +19)° + (2x + 8)° + [180° - (7x + 5)°] = 180°
3x +19 + 2x + 8 + 180 - 7x - 5 = 180
-2x + 22 = 0
2x = 22
x = 11
Hence, the value of the variable "x" is 11.
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Laat season Ria's football team scored 50 goals in 20 matches. This season they scored 60 goals in 25 matches. work out the mean number of goals per match for each season.
Find y and simplify completely.
Answer:
Step-by-step explanation:
hello : here is an solution
9514 1404 393
Answer:
y = 6√7
Step-by-step explanation:
Using the geometric mean properties of this geometry, we have ...
y = √((12)(12+9)) = √(12·21) = √(36·7)
y = 6√7
Cafeteria A has 7 packs of granola bars and 12 loose granola bars. Cafeteria B has 3 packs of granola bars and 84 loose granola bars. If the cafeterias have
the same number of granola bars, how many are in each package?
Each package has 18 granola bars.
Step-by-step explanation:This problem can be solved through a system of linear equations.
1. Form the equations.Let "x" be the total number of granola bars that each pack of granola has. Let "y" be the total amount of granola bars that each cafeteria has.
For cafeteria A: \(7x+12=y\)
For cafeteria B: \(3x+84=y\)
Since both equations are solved for y, we may take the argument at the left of the equal sign from both equations and equal them.
\(7x+12=3x+84\).
3. Solve for x.\(7x+12=3x+84\)
\(7x-3x=84-12\) --> Substract 3x and 12 from both sides.
\(4x=72\) --> Simplify by solving the substraction.
\(\frac{4x}{4} =\frac{72}{4}\)--> Divide both sides by 4.
\(x= 18\)
4. Substitute the vallue of x by x on any of the equations.\(y=7(18)+12\\ \\y=138.\)
5. Interpret the results.If a system of linear equations was created, where 2 equations that gave the number of granola bars that each cafeteria has, then the x value obtained when the system was solved, indicates the amount of granola bars that each cafeteria has in each package. Each package has 18 granola bars.
What is the product of ( 8 – j10 ) and ( 6 + j4) in rectangular form?
a) 48 – j 60
b) 88 – j 28
c) 38 + j 28
d) 48 + j 60
Answer:
b
Step-by-step explanation:
Given
(8 - j10)(6 + j4) ← expand factors using FOIL
= 48 + j32 - j60 - j²40 [ j² = - 1 ]
= 48 - j28 + 40
= 88 - j28 → b
Question
If n(A) = 14, n(B) = 51, and n(An B) = 12, then what is n(A U B)?
The value of n(AUB) i.e. union of A and B is 53.
What are Intersections and Unions in Probablity?
The union of two sets results in a new set that contains all of the items from both sets. The union is abbreviated as A∪B or "A or B." The intersection of two sets yields a new set containing all of the members from both sets. The junction is denoted by the letters A∩B or "A and B."
Solution:
Given that,
n(A) = 14
n(B) = 51
n(A∩B) = 12
We know that thee formula is n(AUB) = n(A) + n(B) - n(A∩B)
Putting the values,
n(AUB) = 14 + 51 - 12 = 53
So, the answer for the value of n(AUB) = 53
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10 points please help
Anna and Bobie joined two different swimming classes at the same time.
Anna's swimming school charged an initial amount of $70 and Bobie's charged $250. Their monthly
fees were different.
The total amount paid for in the first t months is given by (PA) for Anna and (PB) for Bobie.
Anna paid $120 and Bobie paid $264 in total for the first two months, but after some months, they
found that they have paid the same amount in total.
After how many months will their total payments be the same and how much will it be?
Answer:
It would be 10 months for the price of $320.
Step-by-step explanation:
First we need to find how much Anna's swimming charge and Bobie's charge is.
PA=70+t The price of the month equals to the starting fee and monthly charge
120=70+2t The price of 2 months times the monthly charge
50=2t
25=t is Anna's monthly charge
PB=250+t is Bobies starting price and monthly charge
264=250+2t is the month charge for Bobie after 2 months
14=2t
7=t is Bobie's monthly charge
70+25x=250+7x We need to find x which is what month will satisfy both equations
25x=180+7x Subtract 70 from both sides
18x=180 Subtract 7x from both sides
x=10 divide 18 from both sides
Now we have the months that satisfy both equations we need to find the total price that matches with it. So we plug it back into both equations.
PA=70+25x PB=250+7x
PA=70+25(10) PB=250+7(10)
PA=70+250 PB=250+70
PA=320 PB=320
Mr. Marshal spent his salary of $8 400 in the following manner: Rental .....1/5 Food.......1/10 Bank ......1/4 Miscellaneous ......... the remainder. what fraction of the money was spent on miscellaneous. how much did he spend on rental. if marshal spent 4/9 of miscellaneous on a trip what fraction of his entire salary was spent on the trip ?
Mr. Marshal spent 1/4 of his salary on miscellaneous expenses and $1,680 on rental; therefore, he spent 1/36 of his entire salary on the trip.
To find the fraction of money spent on miscellaneous, we need to calculate the sum of the fractions spent on rental, food, and bank and subtract it from 1.
Rental: 1/5
Food: 1/10
Bank: 1/4
To find the fraction spent on miscellaneous:
Fraction spent on miscellaneous = 1 - (Rental + Food + Bank)
Rental + Food + Bank = 1/5 + 1/10 + 1/4 = (8 + 4 + 5)/40 = 17/40
Fraction spent on miscellaneous = 1 - 17/40 = 23/40
So, Mr. Marshal spent 23/40 of his salary on miscellaneous.
To find the amount spent on rental, we multiply the fraction spent on rental by his salary:
Amount spent on rental = (1/5) \(\times\) $8,400 = $1,680
Therefore, Mr. Marshal spent $1,680 on rental.
If Mr. Marshal spent 4/9 of the miscellaneous amount on a trip, we need to calculate the fraction of his entire salary spent on the trip.
Fraction spent on the trip = (4/9) \(\times\) (23/40) = 92/360 = 23/90
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4/4 pts
***
---the system of simoultanious equation
X+2y+z=6
2x+y+2z=6
X+y+z=5
Answer:
The system of equations has no solution.
Step-by-step explanation:
Let the following system of linear equations:
\(x +2\cdot y + z = 6\) (1)
\(2\cdot x + y + 2\cdot z = 6\) (2)
\(x + y + z = 5\) (3)
Since the quantity of equations and variables are the same, there is only one solution to this system. First, we clear \(x\) in (3):
\(x = 5 - y - z\)
And make substitution both in (1) and (2):
\((5-y-z) +2\cdot y + z = 6\)
\(2\cdot (5-y-z)+y+2\cdot z = 6\)
\(y = 1\) (4)
\(y = 4\) (5)
Which lead to a contradiction, since \(4\ne 5\). Therefore, the system of linear equations has no solution.
a) Determine the series of the given function. In the first box after the summation symbol, type in -1 or 1 indicating whether the series is alternating or not.
b) Write out the sum of the first four nonzero terms of the series representing this function.
c) Determine the interval of convergence. The outside boxes require the endpoints and the inside boxes
a) The given function is \($\frac{x^2-2x+2}{(x-1)^2(x+2)}$\). The series of this function is \($\sum_{n=0}^{\infty}(-1)^n(n+1)x^n$\). Therefore, the series is alternating (-1).
b) The sum of the first four nonzero terms of the series is \($-1x^1+2x^2-3x^3+4x^4$.\)
c) The interval of convergence is \((-2, 1)\). This is because the denominator \($(x-1)^2(x+2)$\) has a zero at \($x=-2$\) and a zero at \($x=1$\), and the function is undefined at these two points. Therefore, the interval of convergence is the open interval \($(-2, 1)$\).
Convergence is the process of two or more different entities coming together and becoming one. In mathematics, it can refer to a sequence converging to a limit, or the process of a function approaching a finite value as the number of trials approaches infinity. In technology, convergence can refer to the combining of different media types into a single medium, such as the combination of audio, video, and text into a multimedia presentation.
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Given the polynomial 9x2y6 − 25x4y8, rewrite as a product of polynomials.
(9xy3 − 25x2y4)(xy3 + x2y4)
(9xy3 − 25x2y4)(xy3 − x2y4)
(3xy3 − 5x2y4)(3xy3 + 5x2y4)
(3xy3 − 5x2y4)(3xy3 − 5x2y4)
Answer:
Option 3
(3xy³ + 5x²y⁴) (3xy³ - 5x²y⁴)
Step-by-step explanation:
Factorize polynomials:
Use exponent law:
\(\boxed{\bf a^{m*n}=(a^m)^n} \ & \\\\\boxed{\bf a^m * b^m = (a*b)^m}\)
9x²y⁶ = 3²* x² * y³*² = 3² * x² * (y³)² = (3xy³)²
25x⁴y⁸ = 5² * x²*² * y⁴*² = 5² * (x²)² * (y⁴)² = (5x²y⁴)²
Now use the identity: a² - b² = (a +b) (a -b)
Here, a = 3xy³ & b = 5x²y⁴
9x²y⁶ - 25x⁴y⁸ = 3²x²(y³)² - 5²(x²)² (y⁴)²
= (3xy³)² - (5x²y⁴)²
= (3xy³ + 5x²y⁴) (3xy³ - 5x²y⁴)
Martin is buying 400 video games for his entertainment store it's video game cost $20 which of the following could be used to find the total amount he will pay for the video games .
Answer:
What are the following??
Step-by-step explanation:
Imma try to help tho
soo like 20$ per game and like 400 games
thats 20$*400=8,000 dollars
which mixed number is equivalent to the improper fraction of 41/10
Answer:
4 1/10 when u have a inproper fraction like that every 10 is one whole number
Please help me with this ,
Answer:
(a) -2.3°/min
(b) -2.9°/min
Step-by-step explanation:
The average rate of change is the ratio of the difference in R values to the difference in the corresponding t values.
(a) m = (157.6 -226.6)/(30 -0) = -69/30 = -2.3 . . . degrees per minute
__
(b) m = (61.6 -119.6)/(70 -50) = -58/20 = -2.9 . . . degrees per minute
One month Lamar rented 12 movies and 2 video games for a total of $43. The next month he rented 3 movies and 5 video games for a total of $40. Find the rental cost for each movie and each video game.
Answer:
the answer is $53
Step-by-step explanation:
Which equation represents a line which is parallel to the line y = -x - 7?
Answer:
whichever one also says -x
Step-by-step explanation:
parallel lines have the same slope
Please help!
Calculate the circumference of the circle.
Iscm
13 cm
12 cm
1. 20.41 cm
2. 530.66 cm
3. 40.82 cm
4. 37.68 cm
Answer:
40.82 cm
Step-by-step explanation:
To calculate the circumference, multiply the radius by pi(3.14) by 2 and the radius.
C=2πr
C=2π(6.6)
approximately 40.84
40.82 and 40.84 are very close to one another!
I need help thanksss
Answer:
m<h=59º
Step-by-step explanation:
126=6x-1+17+5x
126=11x+16
126-16=11x
120-10=11x
110=11x
10=x
6(10)-1=59
Answer:
m<H = 59°
Step-by-step explanation:
Use the theorem on the measure of an exterior angle of a triangle.
5x + 17 + 6x - 1 = 126
11x + 16 = 126
11x = 110
x = 10
m<H = 6x - 1
m<H = 6(10) - 1
m<H = 60 - 1
m<H = 59°
100 POINTS BRAINLIEST HELP A business owner paid $35,000 for land and $80,000 for a building with their money. What is the shareholder's equity?
A. $115,000
C. $35,000
B. $80,000
D. $57,500
Answer:
A
Step-by-step explanation:
hope this helps
When no number is shown as an index for your
radical, what number is implied as the index?
When no number is shown as an index for your radical then 2 is implied as the index.
A radical is a mathematical symbol (√) used to represent the root of a number.
The index of a radical determines the type of root being taken.
When you see the radical symbol (√) without a specific number as the index, it is assumed to have an implied index of 2
The symbol √ represents the square root, which is a specific type of radical with an index of 2.
So, if you see √x or simply √ without a specific number as the index, it implies the square root.
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What is the measure of angle AXG
Answer:
180°
Step-by-step explanation:
it's half of a circle
The angle AXG is a straight line. The measure of a straight line would be 180
The measure is 180
Simplify
6sqrt20 + 8sqrt5 – 5sqrt45
Answer:
5√5Step-by-step explanation:
Simplify
6√20 + 8√5 - 5√45 = 6√4(5) + 8√5 - 5√9(5) =6(2)√5 + 8√5 - 5(3)√5 = (12 + 8 - 15)√5 =5√5What is more 3.544 or 3.553
Answer:
3.553 is the answer.
Step-by-step explanation:
Write it down
Answer:
3.553 is bigger
Step-by-step explanation:
If you look at the whole numbers, they are the same (3). Then, you would go to the tenths place, which is 5. Both number's tenths places are 5. Then, you look at the hundredths place. The first has 4 as its hundredths place. The second number has 5 as its hundredths place. 5 is more than 4, so 3.553 is more than 3.544.
An international company has employees in one country. If this represents of the company's employees, how many employees does it have in total?
Thus, the total number of employees this international company has is 79,762.
Explain about the percentage of number?There are three typical types of percentage issues that you could encounter in personal or professional settings. Finding the percentage, the starting number, and the finishing number are a few of them.
All three can be answered by computing for the missing half of the percentage method:
Percentage = (Value / Total value) × 100
Let X be the total number of employees.
Total employees in one country = 26,800.
33.6% of X = 26800
X = 26800 / 33.6%
X = 26800 / 0.336
X = 79762
Thus, the total number of employees this international company has is 79,762.
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Complete question:
An international company has 26,800 employees in one country. If this represents 33.6% of the company’s employees, how many employees does it have in total?
On a standardized exam, the scores are normally distributed with a mean of 300 and a standard deviation of 40. Find the z-score of a person who scored 300 on the exam.
A z-score of 0 indicates that the person's score is equal to the mean, so they are right at the Average Performance level.the z-score of a person who scored 300 on the exam is 0.
The z-score of a person who scored 300 on the exam, we can use the formula:
z = (x - μ) / σ
where z is the z-score, x is the raw score, μ is the mean, and σ is the standard deviation.
In this case, the person scored 300 on the exam, which is equal to the mean (μ). Therefore, we can substitute these values into the formula:
z = (300 - 300) / 40
Simplifying the equation, we have:
z = 0 / 40
Since any number divided by zero is undefined, we can conclude that the z-score of a person who scored 300 on the exam is 0.
The z-score measures the number of standard deviations a data point is away from the mean. In this case, a z-score of 0 indicates that the person's score is equal to the mean, so they are right at the average performance level.
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Plzz help with this one problem ASAP
Answer:
i dont know what the problem is
Step-by-step explanation:
Matrix M has x-rows and (11-x) columns. Matrix N has y-rows and (y+5) columns. If MN and NM both are defined, find the values of x and y
Answer:
\(x=8, y=3\)
Step-by-step explanation:
Recall that if a matrix multiplication of two matrices is defined, then the number of columns of the first matrix is equivalent to the number of rows of the second matrix.
Since matrix M has (11-x) columns and matrix N has y rows, and MN is defined, so it follows:
\(y=11-x----(1)\)
Since matrix N has (y+5) columns and matrix M has x rows, and NM is defined, so it follows:
\(y+5=x----(2)\)
Substitute (1) into (2):
\(11-x+5=x\\2x=16\\\therefore x=8--(3)\)
Substitute (3) into (1):
\(y=11-8=3\)
Which graph represents the line 10x + 5y = 20?
Answer:
top right graph
Step-by-step explanation:
5y=-10x+20
y=-2x+4