Answer:
∠XPT and ZPW are vertical angles
Point T, P, and Z are collinear
1. Determine all angles between 0 and 360 degrees that meet
sin3v = sin33
2. Find all angles v between −π and π that satisfy
4 cos (v) 2−4 cos (v) = - 1.
1. The angles between 0 and 360 degrees that meet sin 3v = sin 33 are: 11°, 49°, 131°, 169°, 251°, 289°
2. The angles v between -π and π that satisfy 4\(cos^2\)(v) - 4cos(v) = -1 are:
v = -5π/3, -π/3, 0, π/3, 5π/3
1. To determine all angles between 0 and 360 degrees that meet sin 3v = sin 33, we can use the identity:
sin A = sin B if and only if A = nπ +\((-1)^n\)B, where n is an integer.
Using this identity, we have:
3v = nπ + \((-1)^n\)33
v = nπ/3 +\((-1)^n\)11
Since we are looking for angles between 0 and 360 degrees, we can set n to be 0, 1, 2, or 3. This gives us the following angles:
v = 11°, 49°, 131°, 169°, 251°, 289°, 371°
However, 371° is not between 0 and 360 degrees, so we can discard it. Therefore, the angles between 0 and 360 degrees that meet sin 3v = sin 33 are:
11°, 49°, 131°, 169°, 251°, 289°
2. To find all angles v between -π and π that satisfy 4\(cos^2\)(v) - 4cos(v) = -1, we can rearrange the equation as follows:
4\(cos^2\)(v) - 4cos(v) + 1 = 0
We can then use the quadratic formula to solve for cos(v):
cos(v) = [4 ± \(\sqrt{}\)(16 - 16)]/8
cos(v) = 1/2 or cos(v) = 1
If cos(v) = 1/2, then v = ±π/3, ±5π/3
If cos(v) = 1, then v = 0
Therefore, the angles v between -π and π that satisfy 4\(cos^2\)(v) - 4cos(v) = -1 are:
v = -5π/3, -π/3, 0, π/3, 5π/3
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If each shelf can hold at most 20 books, what is the least number of shelves needed to store the 175 books?
Answer- 9 shelves
In order to find out how many shelves are need we must divided 175 into 20. 175 divided by 20 is 8.75. But, because you cannot have have .75 of a shelf, you have to round this to a whole. This means that 9 shelves will be the least needed number of shelves need to store 175 books. To check this answer 20 books X 8 shelves is 160 books, which means eight shelves can only store 160 books, we will need and additional shelf to store the last 15 books.
HOPE THIS HELPS & GOOD LUCK!
3. Find the value the integral of u(x, y) = x² - 6x²y² + y² + 3x + 4y + 8 over the disk B = {(x, y): (x - 2)² + (y-1)² < R²)
The value of the double integral of u(x, y) over the disk B is 4πR⁴ + 16πR².
To find the value of the integral of u(x, y) over the disk B, we need to evaluate the double integral of u(x, y) over the region defined by the disk B.
The equation of the disk B can be rewritten as (x - 2)² + (y - 1)² < R², which represents a circle with center (2, 1) and radius R.
Let's denote the integral of u(x, y) over the disk B as I:
I = ∬B u(x, y) dA
To evaluate this integral, we can use polar coordinates. In polar coordinates, the equation of the disk B becomes:
(r cosθ - 2)² + (r sinθ - 1)² < R²
Expanding and simplifying this inequality, we have:
r² - 4r cosθ + 4 + r² - 2r sinθ + 1 < R²
2r² - 2r(sinθ + 2cosθ) + 5 < R²
Since we are integrating over the disk B, the range of integration for r is from 0 to R, and the range of integration for θ is from 0 to 2π.
Now, we can rewrite the integral I in polar coordinates:
I = ∫[0 to 2π] ∫[0 to R] (r² - 6r²sin²θ + r² + 3r cosθ + 4r sinθ + 8) r dr dθ
Simplifying and evaluating the integrals, we get:
I = ∫[0 to 2π] ∫[0 to R] (6r³ - 6r³sin²θ + 4r² cosθ + 4r³ sinθ + 8r) dr dθ
I = ∫[0 to 2π] [2R⁴ - (2R⁴/3)sin²θ + 2R³cosθ + 2R⁴ sinθ + 8R²] dθ
I = 2π[2R⁴ + 8R²]
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Whats 2+2 i need hellp plzzzzz
Answer:
4 lol
Step-by-step explanation:
...............................
Solve for x. Enter the solutions from least to greatest.
(x-7)²-25= 0
lesser =
greater x =
The values for the lesser and greatest are:
-14 and 0
Step 1: Define
(x + 7)² - 49 = 0
Step 2: Solve for x
Add 49 to both sides: (x + 7)² = 49
Square root both sides: x + 7 = ±7
Subtract 7 on both sides: x = -7 ± 7
Evaluate: x = -14, 0
Step 3: Check
Plug in x values into original equation to verify they are a solution.
x = -14
Substitute in x: (-14 + 7)² - 49 = 0
Add: (-7)² - 49 = 0
Exponents: 49 - 49 = 0
Subtract: 0 = 0
Here we see that 0 does indeed equal 0.
∴ x = -14 is a solution of the equation
x = 0
Substitute in x: (0 + 7)² - 49 = 0
Add: 7² - 49 = 0
Exponents: 49 - 49 = 0
Subtract: 0 = 0
Here we see that 0 does indeed equal 0.
∴ x = 0 is also a solution of the equation.
Hence we get the required answer.
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4x + 3(2 - x) = 8 – 2x
Answer:
x= 2/3 or in decimal form 0.6(the 6 repeats) hope this helps
Step-by-step explanation:
divide each side by the factors that do not contain the variable in this case the variable is x
What is the slope of the line y = 5x? Just write the
number for your answer.
Answer:
5
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
y = 5x
Step 2: Break Function
Identify Parts
Slope m = 5
y-intercept b = 0
What is the solution of 4z + 10 = 30?
-
Answer:
z = 5
Step-by-step explanation:
You must isolate the z in this situation
Identify the equation that describes the line in slope-intercept form. slope = 2 , point (- 1, 2) is on the line
Answer:
\(y=2x+4\)
Step-by-step explanation:
Given a slope and a point on the line, you can use point slope form and then rearrage your terms into slope-intercept formSLOPE-INTERCEPT FORM: \(y=mx+b\), where "m" is your slope and "b" is your y-interceptPOINT-SLOPE FORM: \((y-y_{1}) =m(x-x_{1})\), where \(y_{1}\) represents the y-coordinate of your point, \(x_{1}\) represents the x-coordinate of your point, and \(m\) represents the slope\((y-2)= 2(x-(-1))\)
Point-slope form\((y-2)=2(x+1)\)
\(y-2=2x+2\)
\(y=2x+4\)
Slope-intercept forman employer interviews 10 people for four openings at a company. six of the 10 people are women. all 10 applicants are qualified. in how many ways can the employer fill the four positions when the selection is random and exactly three selections are women?
The employer chooses at random, and three of the candidates are women, there are 80 possible ways to fill the four positions.
We may use the combination formula to address this issue,
which is:
nCr = n! / (r! * (n-r)!)
where r is the number of things being picked, n denotes the total number of items, and! denotes factorial, which is the sum of all positive integers up to that number. For example, 4! = 4 x 3 x 2 x 1 = 24.
Six women will be chosen, and one person will be selected from the remaining four (who must be a man). The result is:
Number of ways to choose 3 women from 6 women = 6C3 = 20
Number of ways to choose 1 man from 4 men = 4C1 = 4
Since these two numbers are independent options, we must multiply them together to determine the total number of alternatives to fill the four seats. Which is:
There are a total of four slots that can be filled, including 3 women and 1 man. = 20 * 4 = 80
Therefore, the employer chooses at random, and three of the candidates are women, there are 80 possible ways to fill the four positions.
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Using simplex method to solve the following problems: (Manual calculations and then confirm your calculation by any software) Max. Z=5A+4B Subject to constraints: 6 A+4 B≤24, A+2 B≤6,−A+B≤1, B≤2, A, B≥0
Using the simplex method, the maximum value of Z=5A+4B is found to be 19.2 when A=3.6 and B=1.2. The calculations can be confirmed by using any software that solves linear programming problems.
To solve the given linear programming problem using the simplex method, we start by converting the problem into standard form. We introduce slack variables to convert the inequalities into equations.The initial tableau is as follows:
| A | B | S1 | S2 | S3 | S4 | RHS
------------------------------------------
Z | -5 | -4 | 0 | 0 | 0 | 0 | 0
------------------------------------------
S1 | 6 | 4 | 1 | 0 | 0 | 0 | 24
S2 | 1 | 2 | 0 | 1 | 0 | 0 | 6
S3 | -1 | 1 | 0 | 0 | 1 | 0 | 1
S4 | 0 | 1 | 0 | 0 | 0 | 1 | 2
We perform the simplex iterations until the optimal solution is reached. After applying the simplex method, the final tableau is obtained as follows:
| A | B | S1 | S2 | S3 | S4 | RHS
------------------------------------------------------
Z | 0 | 1.8 | 0.2 | -1 | -0.4 | 0.4 | 19.2
------------------------------------------------------
S1 | 0 | 0 | 0 | 1.5 | -1 | 1 | 3
S2 | 1 | 0 | -0.5 | 0.5 | 0.5 | -0.5 | 1.5
A | 1 | 0 | 0.5 | -0.5 | -0.5 | 0.5 | 0.5
S4 | 0 | 0 | 1 | -1 | -1 | 1 | 1
From the final tableau, we can see that the maximum value of Z is 19.2 when A=3.6 and B=1.2. This solution satisfies all the constraints of the problem. The calculations can be verified using any software that solves linear programming problems, which should yield the same optimal solution.
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question is link so do that.
Answer:
90
Step-by-step explanation:
180 divided by 2 is 90
Consider the graphs of the following lines.
3x - 5y = 2
3x + 5y = -2
Find the slope m of each line.
3x - 5y = 2
m₁ =
3x + 5y = -2
m2 =
8.6A.
4
Slope of lines 3x - 5y = 2 and 3x + 5y = -2 are m₁ = 3/5 and m₂ = -3/5 respectively.
What is slope of the line?The slope of a line is defined as the change in y-coordinate with respect to the change in x-coordinate of the line. The net change in the y coordinate is Δy and the net change in the x coordinate is Δx. Therefore, the change in y-coordinate for a change in x-coordinate can be written as
Line slope is a measure of the steepness or direction of a line in the coordinate plane.
m = Δy/Δx
where,m is the slope
Given,
equations of the line
3x - 5y = 2
Moving 3x to RHS
-5y = -3x + 2
y = (3/5)x - 2/5
comparing with slope intercept equation of the line y = mx + c
slope m₁ = 3/5
Now, equation
3x + 5y = -2
moving 3x to RHS
5y = -3x - 2
y = (-3/5)x - 2
comparing with slope intercept equation of the line y = mx + c
slope m₂ = -3/5
Hence, m₁ = 3/5 and m₂ = -3/5 are slope of lines 3x - 5y = 2 and 3x + 5y = -2 respectively.
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PLEASE FAST!!: (math related, view picture) Liner equation: y= 3x-4
Somebody please draw/show how they did the map so i can do it. i need help!!
Answer:
Step-by-step explanation:
y = 3x - 4
x = 0, y = 3*0 - 4
y = -4
(0 , -4)
x = 1 , y = 3*1 - 4
y = 3 - 4
y = -1
(1 , -1)
x = 2 , y = 3*2 - 4
y = 6 - 4
y = 2
(2 , 2)
Now mark these points (0 , -4) , (1 , -1) & (2 , 2) in the graph and join the points
How I simplify this real life expression and show unit analysis?
simple interest = ($100) (0.05/year) (2.5 years
The value of the real life expression is, simple interest = $12.5
How to simplify this real life expression and show unit analysis?The real life expression is given as:
simple interest = ($100) (0.05/year) (2.5 years
Divide 1 year by 1 year
simple interest = ($100) (0.05) (2.5)
Rewrite the equation as a product of factors
simple interest = ($100) * (0.05)* (2.5)
Evaluate the product of 0.05 and 2.5
simple interest = ($100) * 0.125
Evaluate the product of $100 and 0.125
simple interest = $12.5
Hence, the value of the real life expression is, simple interest = $12.5
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Find the surface area of each figure. Round to the nearest tenth.
A) 353.9 m2
C) 402.1 m?
B) 707.8 m?
D) 587.5 m?
The surface area of each figure nearest tenth will be 402.1 square meters. Then the correct option is C.
What is the surface area of a right circular cylinder?Let r be the radius and h be the height of the cylinder. Then the surface area of the cylinder will be given as,
SA = 2πrh + 2πr² square units
The diameter of the base circle is 8 meters and the height is 12 meters. Then the radius of the base circle is given as,
r = d / 2
r = 8 / 2
r = 4 meters
Then the surface area is calculated as,
SA = 2π × 4 × 12 + 2π × (4)²
SA = 2π × (48 + 16)
SA = 2π × 64
SA = 402.1 square meters
The surface area of each figure nearest tenth will be 402.1 square meters. Then the correct option is C.
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The complete question is attached below.
What is 230 kilometers converted to meters per minute?
Your answer would be 230,000
I need help
Which number has a 3 value that is 100 times greater than the value of the 3 in 20.342?
Answer:
36.25
Step-by-step explanation:
Answer:
36.25
Step-by-step explanation:
Twelve large bottles of water cost $9.How many bottles can you buy for $3?
Answer: 4 large bottles of water for $3.
Step-by-step explanation: To find how many large water bottles you can buy with $3, you’ll have to divide 12 by 3 which equals to 4. You can check your answer by multiplying 4 x 3 which equals to 12, which is the original amount of large water bottles you can buy for $9.
9 + 7 + z + z + 5 + 7
Answer:
2(14+z)
Step-by-step explanation:
9+7+5+7
16+5+7
21+7
28
28+z+z
28+2z
2(14+z)
-4 2/3+ 1 5/6 pls help me
Answer:
-2.83~
Step-by-step explanation:
google :)
pls answer i will give u brainlist, FAST AND PLS WRITE THE STEPS HAS TO BE SHORT PLSSSSSSS
Answer:
velosity= distance ÷ time
Step-by-step explanation:
\(3 \times \frac{2}{5} \div \frac{2}{3} = \\ \frac{17}{5} \times \frac{3}{2} = \frac{51}{10} = 5.1\)
1.) Tony deposited $743.22 to his checking account on July 1st. He then wrote a
check for $312.29 and another check for $36.70. The bank charged a
monthly service of $6.26. He now has $410.98 in the bank. How much did
Tony have in the bank at the end of June?
34
A. $387.97
B. $23.01
C. $798.95
D. $394.23
Answer:
23.01
Step-by-step explanation:
743.22-312.29-36.7-6.26
=387.97
410.98-387.97
=23.01
Express each percent as a decimal:
7 1/2%
Answer:
0.075
Step-by-step explanation:
To represent 7 1/2 as a decimal, it would be 0.075 since there are 7 hundredths and half a hundredth.
the results generated in the map phase are combined in the ________ phase.
The results generated in the map phase are combined in the _reduce_ phase.
In maps, the "reduced phase" refers to a technique used to remove the phase ambiguity present in interferometric synthetic aperture radar (InSAR) data. InSAR uses radar to measure the distance between a satellite or aircraft and the ground and can be used to create detailed maps of changes in the surface of the earth over time.
However, because InSAR data is collected using radar waves, which are sensitive to the phase of the signal, the data can be affected by phase ambiguities. The reduced phase technique is used to remove these ambiguities and create more accurate maps.
Therefore, The results generated in the map phase are combined in the _reduce_ phase.
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Someone PLS HELP ME!!!!!
Answer:
D
Step-by-step explanation:
if x=5 then,
y=-6×1+11
=-6+11
=5
SOLVE THIS PROBLEM ASAP PLS
Answer:
2/8 chance of landing on A
Step-by-step explanation:
Simplify (4 xy) (−2x)
Answer:
-x2 y
Step-by-step explanation:
Question Find the first five terms of the following sequence, starting with n = 1. bn = 40² – 8 Give your answer as a list, separated by commas.
The first five terms of the sequence are all equal to 1592
The given sequence is defined by the formula:
bn = 40² - 8.
To find the terms of the sequence, we substitute different values of n into the formula and simplify the expression.
For n = 1:
b1 = 40² - 8 = 1600 - 8 = 1592
For n = 2:
b2 = 40² - 8 = 1600 - 8 = 1592
For n = 3:
b3 = 40² - 8 = 1600 - 8 = 1592
For n = 4:
b4 = 40² - 8 = 1600 - 8 = 1592
For n = 5:
b5 = 40² - 8 = 1600 - 8 = 1592
Therefore, the first five terms of the sequence are: 1592, 1592, 1592, 1592, 1592.
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Along with the wood, Jack is also using some nails to build the shelves. One box of nails has a mass of kilograms (kg).
Jack used between and of the nails in the box.
How many kilograms of nails did Jack use to build the shelves? Show your work or explain your answer.
Answer:
The answer to your problem is, Between 1 3/8 kg and 2 1/16 kg of nails
Step-by-step explanation:
2 3/4 kg as an improper fraction is 11/4 kg
1/2 of 11/4 = 1/2 x 11/4
= 11/8
= 1 3/8 kg
3/4 of 11/4 = 33/16
= 2 1/16 kg
1 3/8 kg and 2 1/16 kg of nails
Thus the answer to your problem is, Between 1 3/8 kg and 2 1/16 kg of nails