Answer:
A
Step-by-step explanation:
The line passes through the points (-3,-7) and (9,1).
The slope of the line can be calculted using formula
[tex]\dfrac{y_2-y_1}{x_2-x_1}.[/tex]
Thus, the slope of the given line is
[tex]\dfrac{1-(-7)}{9-(-3)}=\dfrac{8}{12}=\dfrac{2}{3}.[/tex]
Answer:
A
Step-by-step explanation:
slope is given by the formula:
[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
We need 2 points to find a line's slope.
The first point is (-3,-7) hence x_1 = -3 & y_1 = -7.The second point is (9,1) hence x_2 = 9 & y_2 = 1.Plugging these into the slope formula, we will get the slope:
[tex]\frac{1--7}{9--3}\\=\frac{1+7}{9+3}\\=\frac{8}{12}\\=\frac{2}{3}[/tex]
correct answer is A
A basketball player's probability of making a free throw is 0.9. When the player makes two free throws in a row, X is the number of free throws made.
What is P(X = 2)?
Enter your answer, as a decimal, in the box.
P(X = 2) =
Answer:
0.81
Step-by-step explanation:
P(success) = 0.9
P(failure) = 1 - 0.9 = 0.1
Binomial probability:
P(X=n) = nCr (0.9)^n (0.1)^r
Here, n=2 and r=0:
P(X=2) = ₂C₀ (0.9)² (0.1)⁰
P(X=2) = 0.81
X is the number of free throws made P(X = 2) is 0.81
What is probability?
Probability is a branch of mathematics that deals with the occurrence of a random event.
calculation:-
⇒P( sucess event ) = 0.9
⇒P(failure event) = 1 - 0.9 = 0.1
Binomial probability:
P(X=n) = nCr (0.9)ⁿ (0.1)ˣ
let, n=2 and r=0:
P(X=2) = ₂C₀ (0.9)² (0.1)⁰
P(X=2) = 0.81
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Use the information provided to calculate the different parts of the proposal: The lazy river is basically a large circle that will need to be filled with water. The radius of the outer perimeter is 30 yards. The river is 4 feet deep and it's width is 5 feet. First compute the river's volume in cubic feet and then calculate how many gallons of water it will hold. Remember 1 cubic foot = 7.48 gallons.
Answer:
10,995.6 ft^3.
2300.3 gallons.
(both to the nearest tenth).
Step-by-step explanation:
Area of the surface of the river = area of the outer circle - area of the inner circle.
Radius of the outer circle = 30 *3 = 90 feet.
So the surface area of the river = π(90)^2 - π(85)^2
= 875π ft^2
Also the volume of the river = surface area * depth = 875π*4 = 3500π ft^3
= 10,995.6 ft^3.
Number of gallons of water it will hold = 10,995.6 / 4.78
= 2300.3 gallons.
Each test contains 20 questions. In average, it takes a person to take each test 40 minutes. If I was to get stuck in one out of 5 questions for an additional 2 minutes. How long will it take me to complete 3 of the tests?
I think the answer is 144 minutes
Help please! Liberal Arts Mathematics question
Answer:
Option C (x < -5/4)
Step-by-step explanation:
((2 - 5x)/(-3)) + 4 < -x.
Take LCM on LHS:
(2 - 5x - 12)/(-3) < -x.
Multiplying -3 on both sides (this will also flip the inequality):
-5x - 10 > 3x.
Adding 10 on both sides and subtracting -3x on both sides:
-8x > 10.
Dividing -8 on both sides (this will also flip the inequality):
x < -5/4.
Therefore, Option C is the correct answer!!!
Scott takes a student loan to go to college after high school. If he pays $750 in interest at a rate of 3%, how much must the loan have been for originally?
Final answer:
To calculate the original loan amount for Scott, who paid $750 in interest at a 3% rate, we use the formula for simple interest and determine that the original loan amount was $25,000.
Explanation:
If Scott pays $750 in interest at a rate of 3%, to find out the original amount of the loan, we can use the formula I = PRT, where I stands for interest, P is the principal amount (the original loan amount), R is the rate of interest, and T is the time in years. Since Scott already knows the interest and the rate, we can rearrange this formula to solve for P: P = I / (RT).
In this case, we assume the time T to be 1 year, since no specific time was given. The calculation would be:
P = $750 / (0.03 * 1)
P = $750 / 0.03
P = $25,000
So, the original loan amount Scott must have taken out is $25,000.
35 less than seven times a certain number is fifty-three more than 3 times that number. What is the number?
Answer:
70
Step-by-step explanation:
The equation derived from the problem is 7x - 35 = 3x + 53. Solving this equation by combining like terms and isolating the variable x gives us the certain number, which is 22.
We need to find the certain number mentioned in the problem. According to the problem, '35 less than seven times a certain number is fifty-three more than 3 times that number.' We can translate this into an equation:
7x - 35 = 3x + 53
Where 'x' represents the certain number. Now, let's solve the equation step by step:
First, subtract 3x from both sides to move the variable terms to one side of the equation. 7x - 3x - 35 = 3x - 3x + 53 4x - 35 = 53
Next, add 35 to both sides to isolate the variable term. 4x - 35 + 35 = 53 + 35 4x = 88
Finally, divide by 4 to solve for x. 4x / 4 = 88 / 4 x = 22
So, the certain number we are looking for is 22.
50 POINTS!! PLEASE HELP ASAP
After completing the fraction division 5 divided by 5/3, Miko used the multiplication shown to check her work.
3 x 5/3=3/1 x 5/3 = 15/3 or 5
Which is the most accurate description of Miko’s work?
A. Miko found the correct quotient and checked her work using multiplication correctly.
B. Miko found the correct quotient but checked her work using multiplication incorrectly.
C. Miko found an incorrect quotient but checked her work using multiplication correctly.
D. Miko found an incorrect quotient and checked her work using multiplication incorrectly.
Answer:
D. Miko found an incorrect quotient and checked her work using multiplication incorrectly
Step-by-step explanation:
We are given the equation
[tex]\frac{5}{\frac{5}{3} }[/tex]
This can be rewritten as
[tex]5*\frac{3}{5} =3[/tex]
Miko's work is incorrect as she did not multiply by the reciprocal of denominator's fraction. Instead she just multiplied by that fractions.
Which is the most accurate description of Miko’s work?
After completing the fraction division 5 divided by 5/3, Miko used the multiplication shown to check her work. 3 x 5/3=3/1 x 5/3 = 15/3 or 5
Answer: D) Miko found an incorrect quotient and checked her work using multiplication incorrectly.
I hope this helps you! ☺
The length of one open measures 17 1/2 inches filling to father of the measures 24 3/4 inches how many inches in length are there of been placed end to end end to end
Answer:
I believe it would be 42.25? or 42 and 1/4
Step-by-step explanation:
Below are the demand and supply equations for overhead projectors in a certain market. In these equations, p represents price, D represents demand, and S represents supply.
What is S at the point of equilibrium, to the nearest whole number?
a.
12
b.
15
c.
58
d.
67
The answer is B
The value of [p] at equilibrium is equivalent to 43.12.
What is the relation between demand and supply at equilibrium?At equilibrium, the demand is equal to supply. Mathematically, we can write -
D{x} = S(x)
Given is are the demand and supply equations.
We have the demand and supply equations as -
D{p} = (-5/8)p + 35
S{p} = (6/5)p - 44
Now, at equilibrium, we can write -
D{p} = S{p}
(-5/8)p + 35 = (6/5)p - 44
(6/5)p + (5/8)p = 35 + 44
p{(48 + 25)/40} = 79
p(73/40) = 79
p = (79 x 40)/73
p = 43.12
Therefore, the value of [p] at equilibrium is equivalent to 43.12.
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Which is the correct inequality for the given graph?
x + 3y < -3
x + 3y > -3
x - 3y < -1
3x + y > -1
Answer:
The correct inequality for the given graph is x + 3y < -3 ⇒ 1st answer
Step-by-step explanation:
* Lets study the graph
- The angle between the positive part of x-axis and the line is obtuse,
that means the slope of the line is negative value
- The shaded part is under the line, that means the solutions of the
inequality are under the line , so the sign of the inequality is <
- The y-intercept is < -1 ⇒ (the value of y when x = 0)
* Now lets check the answers to find the correct answer
- At first we will choose the answer with sign <
∴ The answers are x + 3y < -3 OR x - 3y < -1
- At second lets check the y-intercept (put x = 0)
- Substitute x by 0 in the two answer to choose the right one
∵ x = 0
∴ 0 + 3y < -3 ⇒ ÷ 3 both sides
∴ y < -1
* OR
∵ x = 0
∴ 0 - 3y < -1 ⇒ ÷ -3 both sides
∴ y > 1/3 ⇒ because we divide the inequality by negative number
we must reverse the sign of inequality
∵ the y-intercept is < -1
∴The first equation is right
* To be sure check the slope of each line
∵ y < mx + c, where m is the slope of the line
- Put each inequality in this form
∵ x + 3y < -3 ⇒ subtract x from both sides
∴ 3y < -3 - x ⇒ ÷ 3
∴ y < -1 - x/3
∴ m = -1/3 ⇒ the slope is negative
* OR
∵ x - 3y < -1 ⇒ subtract x from both sides
∴ -3y < -1 - x ⇒ ÷ -3
∴ y > 1/3 + x/3
∴ m = 1/3 ⇒ the slope is positive
∵ The slope of the line is negative
∴ The correct inequality for the given graph is x + 3y < -3
The graph of [tex]f(x) = \frac{1}{4} 3^{x} -6[/tex] is shown below. g(x) is a transformation of f(x). How would you write the equation for the function g(x)?
A. [tex]g(x) = \frac{1}{4}3^{x} +2[/tex]
B. [tex]g(x) = -\frac{1}{4}3^{x} -6[/tex]
C. [tex]g(x) = \frac{1}{3} *4^{x} +3[/tex]
D. [tex]g(x) = 3^{x} +2[/tex]
Answer:
the answer would be like finding the point and then doing the math
after the math u will find you answer on the am going to say either C or D
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
If g(x) is a transformation of f(x), then we can consider function f(x) as parent function.
So, to get the graph of the function g(x), we have to translate the graph of the function f(x) 8 units up.
This translation will give us the function
[tex]g(x)=f(x)+9\\ \\g(x)=\dfrac{1}{4}\cdot 3^x-6+8\\ \\g(x)=\dfrac{1}{4}\cdot 3^x+2[/tex]
1. A triangle has a side length of 450mm.The scale factor is 1/25.What is the side length of the scale drawing.
Answer:
18 mm
Step-by-step explanation:
To find the side length of the scale drawing, multiply the length of the side by the scale factor
450 * 1/25 =18
The side length in the drawing is 18 mm
Please please help me please
I believe the answer is 70 degrees. If you divide 360 by 9 (amount of degrees divided by amount of sides) you get 40 and we know that the three angles in a triangle add up to 180 degrees. So if we subtract the 40 we got for the top angle we get 140 degrees. We know the other two angles in the triangle are congruent so we can divide 140 by 2 to get the degree of both angles which is 70. Hope this helps!
which of the following is the surface area of the right cylinder below?
Answer:
the answer is A
Step-by-step explanation:
the formula is 2π rh +2πr^2
you put the values in
2π (6*15) +2π(6)^2
then you solve
180π+ 72π= 252π
For this case we have that by definition, the surface area of a cylinder is given by:
[tex]SA = 2 \pi * r * h + 2 \pi * r ^ 2[/tex]
Where:
A: It's the radio
h: It is the height of the cylinder
We have to:
[tex]r = 6 \ units\\h = 15 \ units[/tex]
Substituting:
[tex]SA = 2 \pi * 6 * 15 + 2 \pi * (6) ^ 2\\SA = 2 \pi * 6 * 15 + 2 \pi * (6) ^ 2\\SA = 180 \pi + 72 \pi\\SA = 252 \pi \ units ^ 2[/tex]
Answer:
Option A
Determine the length, to 1 decimal place, of the arc that subtends an angle of 5.4 radians at the centre of a circle with radius 7 cm.
Answer:
37.8
Step-by-step explanation:
Length = radius * Θ
L=7*5.4
L=37.8
If wrong don't report, just notify me so I can edit.
Have a great day!
The length, to 1 decimal place, of the arc that subtends an angle of 5.4 radians at the center of a circle with a radius of 7 cm is 37.8 cm.
What is a circle?It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)
It is given that:
The arc subtends an angle of 5.4 radians at the center of a circle with a radius of 7 cm.
As we know, the relationship between radius of the circle, central angle, and arc length is:
s = rθ
r = 7 cm
θ = 5.4 radians.
When two lines or rays converge at the same point, the measurement between them is called an "Angle."
s = 7×5.4
s = 37.8 cm
Thus, the length, to 1 decimal place, of the arc that subtends an angle of 5.4 radians at the center of a circle with a radius of 7 cm is 37.8 cm.
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WILL MARK BRAINLIEST
Solve the following equation algebraically:
2x*2=50
a.+0.2
b.+7.07
c.+5
d.+12.5
Divide 50 by 2 so 25 then divide that by 2 so 12.5 =x
The equation 2x² = 50 has two solutions, x = 5 and x = -5.
The equation 2x² = 50 can be solved algebraically by dividing both sides by 2 and then taking the square root of both sides. This gives us two solutions, x = 5 and x = -5.
Another way to solve this equation is to factor the left side. We can see that 2x² = 2(x²). We can also factor x² as (x)(x). This gives us the following equation:
2(x)(x) = 50
Dividing both sides by 2, we get:
(x)(x) = 25
Taking the square root of both sides, we get:
x = ±5
Therefore, the two solutions to the equation 2x² = 50 are x = 5 and x = -5.
We can check our answer by substituting x = 5 and x = -5 back into the original equation.
2(5)² = 50
2(25) = 50
50 = 50
This is true.
2(-5)² = 50
2(25) = 50
50 = 50
This is also true.
Therefore, our solutions are correct.
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River boat ( ) a river boat leaves silver town and travels upstream to gold town at an average speed of 6 kilometers per hour. it returns by the same route at an average speed of 9 kilometers per hour. what is the average speed for the round-trip in kilometers per hour?
a.7.0
b.7.1
c.7.2
d.7.5
e.8.0
Answer:
Let's suppose the distance between gold town and silver town is 9 kilometers.
The first trip takes 9 km / 6 km / hour = 1.5 hours
The return trip takes 9 / 9 km / hour = 1 hour
TOTAL TRIP = 18 kilometers in 2.5 hours
= 18 / 2.5 = 7.2 hours
Answer is c
Step-by-step explanation:
Compute the following linear combination.
(79.4, 58.1) + 3(-0.8, 6.3)
Answer:
(77, 77)
Step-by-step explanation:
Carry out the indicated multiplication:
3(-0.8, 6.3) → (-2.4, 18.9)
Next, combine like terms:
(79.4, 58.1) + (-2.4, 18.9). In other words, combine the x terms 79.4 and -2.4 separately and then the y terms 58.1 and 18.9 separately:
(79.4, 58.1) + (-2.4, 18.9) → (77, 77)
The resultant of the following linear combination is:
(77,77)
Step-by-step explanation:We are asked to find the linear combination of the expression:
(79.4, 58.1) + 3(-0.8, 6.3)
We multiply each of the term in the second coordinate by 3 .
i.e. this could also be given by:
(79.4, 58.1) + (3×-0.8, 3×6.3)
= (79.4, 58.1) + (-2.4, 18.9)
Now as there is a addition sign in between the two coordinates i.e. each of the first and the second coordinate will get added
i.e.
= (79.4+(-2.4),58.1+18.9)
= (79.4-2.4,58.1+18.9)
= (77,77)
i.e.
(79.4, 58.1) + 3(-0.8, 6.3)=(77,77)
Each edge of a wooden cube is 4 centimeters long. The cube has a density of 0.59 g/cm^3 .
What is the mass of the wooden cube?
Answer:
[tex]37.76\ g[/tex]
Step-by-step explanation:
we know that
The density is equal to divide the mass by the volume
[tex]D=m/V[/tex]
Solve for the mass
[tex]m=D*V[/tex]
Find the volume of the cube
The volume of the cube is equal to
[tex]V=b^{3}[/tex]
we have
[tex]b=4\ cm[/tex]
substitute
[tex]V=4^{3}[/tex]
[tex]V=64\ cm^{3}[/tex]
Find the mass
[tex]m=0.59*64=37.76\ g[/tex]
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Use the probability distribution table to answer the question.
What is P(X ≥ 2)?
Enter your answer, as a decimal, in the box.
Answer: 0.88
Step-by-step explanation:
P(X ≥ 2) = P(X = 2) + P(X = 3) + P(x = 4) + P(X = 5) + P(X = 6)
= 0.21 + 0.35 + 0.21 + 0.06 + 0.05
= 0.88
What is the value of x, given that OP II NQ?
A. x = 7
B. x = 9
C. x = 12
D. x = 24
Answer:
Option C. x = 12
Step-by-step explanation:
we have that
Traingles MOP and MNQ are similar
therefore
The ratio of its corresponding sides is proportional
[tex]\frac{MO}{MN}=\frac{MP}{MQ}[/tex]
substitute the values
[tex]\frac{21+7}{21}=\frac{36+x}{36}[/tex]
[tex]28*36=21*(36+x)\\ \\1,008=756+21x\\ \\21x=252\\ \\x=12\ units[/tex]
Which of the following equations is the formula of [tex]f(x) = x^{1/3}[/tex] but shifted 2 units to the right and 2 units down?
A. [tex]f(x) = 2x^{1/3} -2[/tex]
B. [tex]f(x) = (x-2)^{1/3} -2[/tex]
C. [tex]f(x) = 2x^{1/3} +2[/tex]
D. [tex]f(x) = (x+2)^{1/3} -2[/tex]
Answer:
[tex]f(x)=(x-2)^{\frac{1}{3}}-2[/tex] ⇒ answer B
Step-by-step explanation:
* Lets revise some transformation
- If the function f(x) translated horizontally to the right
by h units, then the new function g(x) = f(x - h)
- If the function f(x) translated horizontally to the left
by h units, then the new function g(x) = f(x + h)
- If the function f(x) translated vertically up
by k units, then the new function g(x) = f(x) + k
- If the function f(x) translated vertically down
by k units, then the new function g(x) = f(x) – k
* Now lets solve the problem
∵ f(x) = x^1/3
- f(x) shifted 2 units to the right
∴ f(x) = (x - 2)^1/3
- f(x) shifted 2 units down
∴ f(x) = (x - 2)^1/3 - 2
* [tex]f(x)=(x - 2)^{\frac{1}{3}}-2[/tex]
Solve For X
A: 10
B:10.5
C:20
D:6[tex]\sqrt{3}[/tex]
The answer is gonna be (B)
Describe the locus in space.
points 4 mm from
Question 34 options:
a sphere of radius 4 cm
two planes parallel to , each 4 mm from
an endless cylinder with radius 4 mm and centerline
two lines parallel to , each 4 mm from
Answer: an endless cylinder with radius 4 mm and centerline
Jeremy, Sue, and Holly are siblings. Sue was born three years before Holly, and Jeremy was born five years before Sue. The product of Sue's age and Jeremy's age is at most 150.
If x represents the age of Holly, which inequality can be used to find the age of each sibling?
A.
x2 - 11x + 24 ≤ 150
B.
x2 + 8x + 15 ≤ 150
C.
x2 + 8x ≤ 150
D.
x2 + 11x + 24 ≤ 150
Answer:
D is the correct answer
Step-by-step explanation:
Let the age of Holly is x years. Now from the statements of the question we will form the equations.
Sue was born three years before Holly.
Sue = Holly + 3 = x + 3------(1)
Jeremy = Sue + 5
From equation (1)
Jeremy = (x + 3) + 5 = x + 8------(2)
Now statement says the product of Sue's age and Jeremy's age is at most 150.
Sue × Jeremy ≤ 150
(x + 3)(x + 8) ≤ 150
x² + 11x + 24 ≤ 150
Therefore inequality x² + 11x + 24 ≤ 150 can be used to find the age of each sibling.
HAVE AN AMAZING DAY, GLAD TO HELP. ^.^
A wallet contains 34 notes, all of which are either $5 or $10 notes.
The total value of the money is $285. How many $10 notes are there?
Answer:
There are 23 $10 notes and 11 $5 notes
Step-by-step explanation:
x= Number of $10 notes
y= Number of $5 notes
1 x + 1 y = 34 .............1
Total value
10 x + 5 y = 285 .............2
Eliminate y
multiply (1)by -5
Multiply (2) by 1
-5 x -5 y = -170
10 x + 5 y = 285
Add the two equations
5 x = 115
/ 5
x = 23
plug value of x in (1)
1 x + 1 y = 34
23 + y = 34
y = 34-23
y = 11
y = 11
x= 23 Number of $10 notes
y= 11 Number of $5 notes
There are 23 notes of $10.
What is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
A wallet contains 34 notes, all of which are either $5 or $10 notes.
let x be Number of $10 notes
let y be Number of $5 notes
x + y = 34 .............(1)
and, 10 x + 5 y = 285 .............(2)
Solving equation (1) and (2), we get
-5 x -5 y = -170
10 x + 5 y = 285
_____________
5 x = 115
x= 11/5/5
x = 23
and, x+ y= 34
y= 34- 23
y= 11
Hence, there are 23 notes of $10.
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Suppose the Santa Monica has a hull length that is 10 ft shorter than that of the Nina Pinta. What expression represents the hull speed of the Santa Monica in terms of the length, ln of the Nina Pinta? Domain Where a = and b = ln What are the restrictions on ln? ln >
Answer: [tex]ln-10[/tex] is the length of Santa Monica and [tex]ln>10[/tex]
Step-by-step explanation:
Let the length of Nina Pinta be ''ln'
According to question, we have given that
the Santa Monica has a hull length that is 10 ft shorter than that of the Nina Pinta.
and 10 ft shorter than that of Nina Pinta is expressed as [tex]ln-10[/tex]
So, the length of Santa Monica be 'ln'-10'
Restriction on ln is that ln>10.
As Length of Santa Monica cannot be negative or equal to zero.
so, [tex]ln>10[/tex]
Hence, [tex]ln-10[/tex] is the length of Santa Monica and [tex]ln>10[/tex]
The speed of the Santa Monica, given the hull length of Nina Pinta as 'ln' and that Santa Monica is 10 ft lesser in hull length, can be represented by 1.34 * sqrt(ln - 10). The restriction on this is that ln must be greater than 10 ft.
Explanation:The hull length of the Santa Monica is defined as ln - 10, where ln is the hull length of the Nina Pinta. The hull speed of the Santa Monica, according to the hull speed formula, is calculated as 1.34 times the square root of the hull length. Therefore, the hull speed of the Santa Monica in terms of the hull length of the Nina Pinta, ln, can be represented by the expression 1.34 * sqrt(ln - 10) where sqrt stands for 'square root'.
The restriction on the domain is that ln must be greater than 10 as the hull length cannot be negative.
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A banquet that costs $3,000 at Luci’s serves how many people?
Answer:
the answer will be 125 people
The equation y = 4x + 4 describes the relationship between the quantities x and y. Are the quantities in a proportional relationship?
Answer:
Yes, because as x grows larger so does y, that means to be in a proportional relationship.
Step-by-step explanation:
Answer: For this to be a proportional relationship, the function would have to be y=4x. Since y=mx+b, this is not a proportional relationship because each time the value of x increases, the value for figure 0 is added on.
So, no. This is not proportional.
Hope this helps!
Find all values of the angle θ (in radians, with 0 ≤ θ < 2π) for which the matrix a = cos θ −sin θ sin θ cos θ has real eigenvalues. (enter your answers as a comma-separated list.)
The matrix
[tex]A=\begin{bmatrix}\cos\theta&-\sin\theta\\\sin\theta&\cos\theta\end{bmatrix}[/tex]
has eigenvalues [tex]\lambda[/tex] such that
[tex]\det(A-\lambda I)=\begin{vmatrix}\cos\theta-\lambda&-\sin\theta\\\sin\theta&\cos\theta-\lambda\end{vmatrix}=0[/tex]
[tex](\cos\theta-\lambda)^2+\sin^2\theta=0[/tex]
[tex](\cos\theta-\lambda)^2=-\sin^2\theta[/tex]
[tex]\cos\theta-\lambda=\pm\sqrt{-\sin^2\theta}[/tex]
[tex]\lambda=\cos\theta\pm\sqrt{-\sin^2\theta}[/tex]
[tex]\sin^2\theta\ge0[/tex] for all values of [tex]\theta[/tex], so we need to have [tex]\sin\theta=0[/tex] in order for [tex]\lambda[/tex] to be real-valued. This happens for
[tex]\sin\theta=0\implies\theta=n\pi[/tex]
where [tex]n[/tex] is any integer, and over the given interval we have [tex]\theta=0[/tex] and [tex]\theta=\pi[/tex].
The matrix a will always have real eigenvalues for any value of θ.
Explanation:To find the values of the angle θ for which the matrix a has real eigenvalues, we need to determine when the determinant of the matrix is greater than or equal to 0. The matrix a can be written as:
a = cos(θ) -sin(θ)
sin(θ) cos(θ)
To calculate the determinant, we use the formula det(a) = cos(θ) * cos(θ) - (-sin(θ)) * sin(θ) = cos²(θ) + sin²(θ) = 1. Since the determinant is always 1, the matrix a will always have real eigenvalues for any value of θ.
Learn more about Eigenvalues here:https://brainly.com/question/32607531
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