The equation x 2 + y 2 − 4 x + 2 y = b x 2 +y 2 −4x+2y=b describes a circle. determine the y coordinate of the center of a circle
Answers
Answer
Here’s a graph. Hope this helps.
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
x²+y²-4x+2y=b
x²-4x+4+y²+2y+1=b+4+1
(x-2)²+(y+1)²=b+5
center is (2,-1)
Related Questions
Can someone help with this question it’s short and simple but I still don’t get it?
Answers
Answer:
anything lower than 7 can be substituted for x to make this work
Step-by-step explanation: i tried
A bottle holds 2 pints. A cartoon holds 3 cups. What is the total the two containers hold in fluid ounces.
Answers
Step-by-step explanation:
3x8 is your answer
hopes this helps ^^
Help ASAP PLSSS!! I’d really appreciate it! Thank youuu!
Answers
C = 180 - (80 + 45)
C = 180 - 125
C = 55
I teach geometry :)
Whats the volume for this question?
Answers
Answer: 34 21/64
Step-by-step explanation: Multiply all the sides to get the Volume.
3 1/4 x 3 1/4 x 3 1/4 = 34 21/64
A square board is attached to a wall. The board is divided into four squares and each square is painted either black or white. In how many ways can the board be painted if we can rotate the given board about its center? The answer is not 14 or 16.
Answers
The board can be rotated in 4 different ways (0, 90, 180, 270 degrees) and each of the four squares can be painted in 2 different ways (black or white). Since we can rotate the board, the order in which the squares are painted does not matter, so we must divide by the number of ways to rearrange the squares. So, there are (2^4) / 4 = 6 ways the board can be painted when we take rotations into account.
How to calculate the Rotation rate?To calculate turnover, it is necessary to consider the departures and additions of people to the company in the period. Calculating turnover is quite simple: you need to add the number of admissions and the number of dismissals, then just divide by 2 and then divide by the total number of employees within your company.
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how far will a train travel in 5hours if it travels at 80ml per hour
Answers
Answer:
If the ml means miles than its 400
Step-by-step explanation:
A professor had students keep track of their social interactions for a week. The
number of social interactions over the week is shown in the following grouped
frequency distribution. What is the class width?
Number of Social
Interactions
35-42
43-50
51-58
59-66
67-74
75-82
83-90
91-98
99-106
107-114
Frequencies
5
15
15
20
12
10
8
6
1
2
Answers
Answer:
7
Step-by-step explanation:
Given the class interval :
Number of Social
Interactions
35-42
43-50
51-58
59-66
67-74
75-82
83-90
91-98
99-106
107-114
The class width = 7
The class width is the range between each class intervals :
42 - 35 = 4
114 - 107 = 7
106 - 99 = 7
The class width of the given grouped
frequency distribution is; 7
We are given the class intervals as;
35 - 42
43 - 50
51 - 58
59 - 66
67 - 74
75 - 82
83 - 90
91 - 98
99 - 106
107 - 114
Now, the class width is defined as the difference between the upper boundary and the lower boundary of a class.
The class intervals seem to be the same all through and as such the class width is;
114 - 107 = 7
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Solve x^3 + x - 4 = 0, leaving your answers correct to 2 decimal places.
Answers
The solution to the equation x³ + x - 4 = 0 is x = 1.38
How to determine the solution to the equationFrom the question, we have the following parameters that can be used in our computation:
x^3 + x - 4 = 0
Express the exponents as proper superscript
So, we have the following representation
x³ + x - 4 = 0
Next, we solve the equation using a graph
i.e. we plot the graph of x³ + x - 4 = 0
See attachment for the graph of x³ + x - 4 = 0
The points where the graph of x³ + x - 4 = 0 crosses the x-axis are the solution
In this case, the point is 1.38
Hence, the solution is x = 1.38
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two copies of one tenth
Answers
Answer:
0.2 or 1/5 or one fifth----------------------------------------
Two copies of one tenth translates as:
2*1/10 = 2*0.1 = 0.2 or 1/5Answer:
Two copies of 1/10 = 1/5
Step-by-step explanation:
Given statement,
→ two copies of one tenth.
Forming the expression,
→ 2 × (1/10)
Let's simplify the expression,
→ 2 × (1/10)
→ (2 × 1)/10
→ 2/10
→ 1/5
Hence, the answer is 1/5.
plllllllsss help it's easy
Answers
Answer:
the answer is A.
Step-by-step explanation:
hope this helps!!!
Given U(-6, 7), V (1, -7), W (6, 4), and X (10, y). Find y such that
UV LWX.
Answers
The coordinates of U and V are (-6,7) and (1,-7), respectively. The vector UV connecting these two points is given by (1-(-6), -7-7) = (7, -14).
The coordinates of W and X are (6,4) and (10,y), respectively. The vector WX connecting these two points is given by (10-6, y-4) = (4, y-4).
For the sides UV and WX to be parallel, the vector UV must be proportional to the vector WX. This means that the ratio of the x-components must be equal to the ratio of the y-components. In other words, we have the following equation:
(7/4) = (-14)/(y-4)
Solving for y, we get:
y = -7
Therefore, the value of y such that the quadrilateral UVLWX is a parallelogram is y = -7.
5x-21=-2x+28 given
Prove x=7
Answers
i hope this helped you xx
Supplementary for solving x
Answers
Answer:
sorry
Step-by-step explanation:
Answer:
M<3 is 49 degrees, M<4 is 131 degrees
Step-by-step explanation:
This is a case of supplementary angles. M<1 and M<2 are supplementary, which means that their angle degrees added together will be equal to 180. The same is for M<2 and M<3, and M<3 and M<4, and M<1 and M<4. Basically, two angles are supplementary when they form a straight line, or 180 degrees
First, we know that M<1 and M<2 added together is 180. We know M<1 is 11x-38 and M<2 is 19x+8, so then, we have:
(11x-38) + (19x+8) = 180
30x - 30 = 180
30x = 210
x = 7
Now, we plug in 7 for x to find M<1 and M<2.
M<1 is (11x-28), so it would be 49 degrees.
M<2 is (19x+8), so it would be 131 degrees (or just do 180-49).
Now, we can find M<3 and M<4 easily. M<3 and M<2 are supplementary, so 131 + M<3 must equal 180. Thus, M<3 is 49.
M<4 and M<1 are supplementary, so 49 + M<4 must equal 180. Thus, M<3 is 131.
AN EASIER WAY TO FIND M<3 AND M<4:
Vertical angles are angles directly opposite each other, created by two intersecting lines. A pair of vertical angles holds the same degree measurements. In this problem, M<2 and M<4 are a pair of vertical angles, and M<3 and M<1 are a pair. Thus, M<2 and M<4 must are the same degree and M<3 and M<1 must are the same degree. Thus, if M<2 is 131, M<4 is 131 degrees as well. If M<1 is 49 degrees, M<3 is 49 degrees as well.
Find all solutions of
Answers
Answer: [tex]x=n\pi +(-1)^n\dfrac{\pi}{6}[/tex], [tex]x=n\pi +(-1)^n\left(\dfrac{-\pi}{6}\right)[/tex]
Step-by-step explanation:
Given
[tex]\sin x-\sqrt{1-3\sin^2x}=0[/tex]
Take the square root term to the right-hand side
[tex]\Rightarrow \sin x=\sqrt{1-3\sin^2x}\\\text{Squaring both sides}\\\Rightarrow \sin^2x=1-3\sin^2x\\\Rightarrow 4\sin^2x=1\\\\\Rightarrow \sin^2x=\dfrac{1}{4}\\\\\Rightarrow \sin x=\pm\frac{1}{2}[/tex]
for
[tex]\sin x=\dfrac{1}{2}[/tex]
[tex]x=n\pi +(-1)^n\dfrac{\pi}{6}[/tex]
for
[tex]\sin x=\dfrac{-1}{2}[/tex]
[tex]x=n\pi +(-1)^n\left(\dfrac{-\pi}{6}\right)[/tex]
Anyone who know what the answer please please help me faster???!!?!
Answers
Answer: The probability of randomly selecting a student in sports is 65% or 65/100
Step-by-step explanation:
What is the value of x?
x = [ ? 10
Answers
9514 1404 393
Answer:
30
Step-by-step explanation:
The triangle inside the circle is an equilateral triangle, so the central angle is 60°. That angle is one of the acute angles in the right triangle formed by the tangent line. The other acute angle (x°) in that right triangle is the complement of 60°.
x° = 90° -60° = 30°
x = 30
Moya is moving to a new house and packing up. She has 70 kilograms of books and 127 kg kilograms of clothing to send through the postal service. How much more do her clothes weigh than her books? How much is her shipping cost of sh has to pay $80 per kg of books and $200 per kg of clothing?
Answers
The amount that her clothes weigh more than her books would be = 57kg
The amount for the shipping cost for her school would be = 5600+25400 = $31000
What is postal service?Postal service is the type of service that helps.in the delivery of goods from one location to another when the goods are properly registered.
The mass of Moya's books = 70 kilograms
The mass of Moya's clothing = 127 kg
The difference between the bothe masses = 127 - 70 = 57kg
The cost per kg for books = $80 per kg
The cost per kg of clothing = $200
Therefore, the amount for the shipping cost for her school would be = (70×80) + (127 ×200)
= 5600+25400 = $31,000.
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Describe the congruence transformation that maps ΔABC onto ΔA′B′C′ in the given figure.
Question 2 options:
A)
Reflection along x-axis; Translation: (x, y) → (x, y – 3)
B)
Reflection along y-axis; Translation: (x, y) → (x, y – 3)
C)
Reflection along y-axis; Translation: (x, y) → (x, y + 3)
D)
Reflection along x-axis; Translation: (x, y) → (x, y)
Answers
Reflection along y axis
Translation: [tex](x,y) \to (x,y-3)[/tex] which means we shift 3 units down
===========================================================
Explanation:
Let's track point A to see how it could move to point A'.
If we were to reflect point A over the vertical y axis, then A(-4,4) would move to (4,4). The x coordinate flips in sign, but the y coordinate stays the same.
The diagram shows that A' is located at (4,1) instead of (4,4). So a y-axis reflection isn't enough to move A to A', but we can shift that reflected point three units down. That will move (4,4) to (4,1) which is exactly where we want to end up. Note how we subtract 3 from the y coordinate and x stays the same. So that explains the notation [tex](x,y) \to (x,y-3)[/tex]
Overall, this points to choice B as the final answer. If we apply these steps to points B and C, you should find that they'll land on B' and C' respectively. Apply this to all of the points on the triangle ABC, and it will move everything to triangle A'B'C'.
Help thank you so much !
Answers
2.0.8625
3.9.3625
4.168.75
5.smaller than
6.greater than
7.greater than
8.smaller than
9.greater than
10.smaller than
2. $0.86
3. $9.36
4. 168.75 miles
5. >
6. >
7. >
8. >
9.
Using the information above, plot the data points and produce a sine regression model for the data. Round a, b, c, and d to the nearest 0.001. Then use your model to predict how much of the moon will be visible 65 days after Jan 8th, provided the sky is clear. Give your answer as a percent. a. 38% of the moon will be visible b. 9% of the moon will be visible c. 35% of the moon will be visible d. 99% of the moon will be visible
Answers
Answer:
B
y = 0.508 sine (0.212 x minus 1.529) + 0.512
Step-by-step explanation:
just took the test
What is the length of the missing leg?
Answers
Answer:
a = 12
Step-by-step explanation:
Formula:
a² + b² = c²
Given:
b = 9
c = 15
Finding a:
a² + b² = c²
a² = c² - b²
a² = 15² - 9²
a² = 225 - 81
a² = 144
[tex]\sqrt{a^2} =\sqrt{144}[/tex]
a = 12
Answer:
12
Step-by-step explanation:
To solve this, use the pythagreons theorm:
a^2+b^2=c^2
A and B are the side lengths, while is the hypotenuse, which in this case is 15 meters.
So lets plug in our values and solve for the missing length:
9^2+b^2=15^2
Square all the values except for the unknown:
81+b^2=225
Subtract from both sides to get b alone:
b^2=144
Take the square root of both sides so b^2 becomes b:
b=12
So your answer is 12!
Hope this helps!
What is statistics. Explain?
Answers
The science of statistics focuses on creating and researching strategies for gathering, analysing, interpreting, and presenting empirical data.
Research in statistics finds application in almost all scientific domains, and research concerns in the various scientific fields inspire the creation of new statistical methods and theories. Statistics is a very interdisciplinary field. Statisticians use a range of mathematical and computational techniques while creating new approaches and researching the theory that supports such methods. Uncertainty and variation are two key concepts in the study of statistics. In science, as well as more generally in life, there are numerous circumstances where the result is unknown. Sometimes the uncertainty is caused by the fact that the result is still up in the air. Probability is a mathematical language that is used to talk about uncertain events, and it is crucial to statistics. There are numerous causes of variance that can affect any measurement or data collection attempt. By this, we indicate that the result would probably alter if the same measurement was repeated. The goal of statisticians is to comprehend and, whenever feasible, manage the sources of variation.
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Find the area of the shape shown below.
Answers
Answer:
31.5
Step-by-step explanation:
Rectangle 1 :
b*h = 21
Triangle :
a= 1/2 b*h
3*7= 21 /2=10.5
Add both 10.5 + 21 =
31.5
Hai everyone! I need a little help again on this second part of a problem. Please do not leave links or you will be reported. (Yes, this is another problem on probability I'm stuck on)
An explanation to go along as well would be very helpful.
problem:
Answer the following question using arrangements with repetition, permutations, or combinations.
How may different six-digit passwords can be formed from the numbers zero to six if repetition is not allowed? Calculate how many different passwords are possible. (Type a whole number.)
Answers
Answer:
one million
Step-by-step explanation:
a six digit passcode has one million possible combinations instead of 10,000.
plzzzzz anserwd. thxxxxxx
Answers
Answer: the answer for #16 is 216
Step-by-step explanation:
1. 75*2=150
2. 33*2=66
3. 150+66=216
Please help giving brainliest
Answers
Answer:
H 28.26 mm
Step-by-step explanation:
What is the value of y in the equation y = 1/4 x divided by 2 when x =32
Answers
The value of y is 16 when x = 32 for equation y = (1/4)x divided by 2.
What is an equation?Mathematical expressions with two algebraic expressions on either side of the equals (=) sign are called equations. It displays how the expressions on the left and right sides are equally related. We have LHS = RHS in any mathematical equation. Equations can be solved to get the value of an unknown variable that represents an unknown quantity. If there is no "equal to" symbol, a statement is not an equation.
The given equation is
y = 1/4 x divided by 2
So,
y = ((1/4)x)/ 2
y = (2/4) × x
Put x = 32
y = 2/4 ×32
y = 2 × 8
y = 16
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I’m giving points pls answer quickly (don’t send me a link pls just tell me answer)
Answers
Answer:
15,000 feet cubed
Step-by-step explanation:
15 x 15 = 225
10 x 15 = 150
150 / 2 = 75
225 = 75 = 300
300 x 50 = 15,000 feet cubed
Answer:
15000 ft^3
Step-by-step explanation:
You said you just wanted the answer so I won't explain in depth but let me know if you want an in depth explanation.
15*15=225
225*50= 11250
10*15=150
150/2=75
75*50=3750
11250+3750= 15000
Answer: 15000ft^3
This is an unusual question it isn't school related but I'm trying to reverse engineer a formula for WAR ( Baseball statistic) using the variables of OBP (.340) SLG (.430) league average OBP (.324) league average SLG (.413) plate appearances (600) and games played (150) the WAR after all that is an even 2.0 so I'm wondering if anyone on here could reverse engineer an equation using those variables to get 2 as an answer please and thank you
Answers
There are a few different methods that can be used to calculate WAR, and the specific formula used can depend on the source and the specific requirements of the calculation. In general, however, WAR is calculated by first determining the player's offensive and defensive contributions and then adding these together to get the overall WAR value.
To reverse engineer a formula to get a WAR value of 2.0 using the given variables, you would need to consider how these variables are typically used in the calculation of WAR and work backwards to determine the appropriate formula. This may involve some trial and error, as there is not a single "standard" formula that is used universally for calculating WAR.
can someone pls help me on this one
Answers
42
Hope this helps!