Which of the following is true of irrational numbers? *
They can be converted into fractions.
They include natural numbers, whole numbers, and integers.
They are non-terminating and non-repeating decimal values.
They are terminating or repeating decimal values.
The answer is C because they do not repeat.
Answer:
......................
Step-by-step explanation:
you are welcome
Which group of numbers is ordered from least to greatest?
A. 45,−0.9,−3
B. −3,−0.9,45
C. −0.9,45,−3
D. 45,−3,−0.9
Answer: B.
Step-by-step explanation: Negatives are smaller than positive numbers
Answer:
That would be B
Step-by-step explanation:
because -3 is way behind 0 following by 0.9 being greater than -3 while 45 is greater and way ahead of the others
HELP ME PLEASE .find g(x+3) if g(v)=-5v-23
Answer:
g(x + 3) = -5x -38
Step-by-step explanation:
Given g(v) = -5v -23
We are to find g(x + 3)
What we shall simply do here is substitute (x + 3) for v in the g(v) equation
That would be;
g(x + 3) = -5(x + 3) -23
g(x + 3) = -5x -15 -23
g(x + 3) = -5x -38
The midpoint of AB is M(-1, -2). If the coordinates of A are (1,3), what are the
coordinates of B?
Answer: (-3,-7)
Step-by-step explanation: I had to get it wrong on delta to give u this answer, ur welcome.
A square chunk of plastic has a length of 5 cm, width of 5 cm and height of 5 cm. It has a mass of 200 g. What is it’s density
Answer: isn’t it 1.6 because you multiply 5 x 5 x 5 = 125 and then you divide 200\125 =1.6
In circle L with m∠KLM = 58∘ KL=14, find the area of sector KLM. Round to the nearest hundredth.
The area of sector KLM is approximately 24.0196 square units when rounded to two decimal places.
The area of sector KLM is to be found in circle L, which has a measure of 58 degrees and a length of 14.
The formula for determining the area of a sector is given below:Area of sector = (angle measure/360°) x πr²
The angle measure is 58°. The radius is half of the length of KL, which is 14 units. So, r = 14/2 = 7.Substituting the values in the formula,
Area of sector = (58/360) x π x 7²Area of sector = (0.1611) x (49π)Area of sector = 7.6379π
The final answer needs to be rounded off to two decimal places, which is achieved by multiplying it by 100, rounding to the nearest integer, and then dividing by 100.Area of sector ≈ 7.64 x π units²
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Ashley needs a 4.6 yards of chain to hang some flower baskets the chain is sold by meter how many meters does Ashley need
If anyone knows algebra nation I need help on the section 2 test yourself at the end pls helppppp. I need all 10 answers. 10 answers for 20 points pls help. I will also give brainliest.
Answer:
you have to provide the questions
Step-by-step explanation:
What were some major changes that took place in the art world following the Reformation?
Find the value of d. Show your work.
The value of the external part of the secant segment d is 3.
What is the numerical value of d?The secant-tangent power theorem states that "if a tangent and a secant are drawn from a common external point to a circle, then the product of the length of the secant segment and its external part is equal to the square of the length of the tangent segment."
It is expressed as:
( tangent segment )² = External part of the secant segment × Secant segment.
From the diagram:
Tangent segment = 6
External part of the secant segment = d
Secant segment = ( d + 9 )
Plug these values into the above formula:
( tangent segment )² = External part of the secant segment × Secant segment.
6² = d( d + 9 )
Solve for d
36 = d² + 9d
d² + 9d - 36 = 0
Factor usng method:
( d - 3 )( d + 12 ) = 0
d = 3 and d = -12
Since we are dealing with dimension, we take the positive value.
Therefore, the value of d is 3.
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CAN SOMEONE HELP THIS IS DUE TODAY PLSS AND THANK YOU!!!
Answer:
YEA MAYBE STOP YELLING theres my advice like wht r u doing?
Step-by-step explanation:
( Will give Brainliest) Please Helpp
Answer:
x = 3.8
Step-by-step explanation:
Perimeter is all the side lengths added up.
Step 1: Set up equation
x + 2(8.3) + 3.8 = 24.2
Step 2: Solve for x
Multiply: x + 16.6 + 3.8 = 24.2Combine like terms: x + 20.4 = 24.2Subtract 20.4 on both sides: x = 3.8Answer:
[tex]\Large \boxed{\sf 3.8}[/tex]
Step-by-step explanation:
Perimeter of a shape is the sum of all sides.
Opposite sides in a parallelogram are of equal length.
The length of the hypotenuse of an isosceles right triangle is 14. What is the length of each leg of the triangle?
Answer:
leg = √7 units (approximately 2.65 units)
Step-by-step explanation:
Given a right isoceles triangle with a hypotenuse of 14 units, the two other legs must be congruent in length. Because this is a right triangle, the pythagorean theorem a^2 + b^2 = c^2, can be used.
Since the two legs are congruent, side a = side b. This means that
2leg^2 = hypotenuse.
_____________
2leg^2 = 14 units
÷ 2. ÷2
_____________
leg^2 = 7 units
√ √
____________
leg = √7 units
How do you solve 3x+y=4 step by step?
Answer:
Step-by-step explanation:
3x+y=4
First this is not really have a soluction
So a list 2 soluction right here
solve for x
3x+y=4
-y -y
3x=4-y
x= -y+4/3
Or solve for y
3x+y=4
-3x
y=-3x+4
Or maby you want a another soluction...
Answer:
Slope Intercept form: y = -3x + 4
Slope: -3
Step-by-step explanation:
For slope intercept:
Subtract 3x from both sides:
3x + y - 3x = 4 - 3x
Simplify:
y = -3x + 4
For slope:
If the equation is y = -3x + 4 then using the formula y = mx + b:
Slope = -3
For a square matrix A, vectors in col(A) are orthogonal to vectors in nul(A). True or false?
False.
For a square matrix A, the vectors in the column space of A (col(A)) are not necessarily orthogonal to the vectors in the null space of A (nul(A)). The column space consists of all possible linear combinations of the columns of A, while the null space consists of all vectors that satisfy the equation Ax = 0.
Orthogonality between col(A) and nul(A) would imply that any vector in col(A) is perpendicular to any vector in nul(A), which is generally not the case. There may exist some specific scenarios where col(A) and nul(A) have orthogonal vectors, but it is not a general property.
Therefore, the statement that vectors in the column space of a square matrix A are orthogonal to vectors in the null space of A is false.
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Please Help, WILL MARK BRAINLIEST!!!!
For the set X = {x | x is an integer from 7 < x < 15} there could be (BLANK) subsets and
(BLANK) proper subsets.
Answers:
128 subsets
127 proper subsets
=========================================================
If we have a set A = {x is some integer such that 7 < x < 15}
Then set A can be written as A = {8, 9, 10, 11, 12, 13, 14}. This is called roster notation. We write every integer between 7 and 15, excluding both 7 and 15.
There are 7 items in set A. So n = 7
This means there are 2^n = 2^7 = 128 different subsets possible
And there are (2^n) - 1 = (2^7) - 1 = 128-1 = 127 different proper subsets. A proper subset is a subset that is smaller than the original set
8th grade math please help
Answer:
22.5 for both L and M
Step-by-step explanation:
Given f(x)=-x+4 find x if f(x)=-5
Find the value of m
([tex]\frac{2}{9}^ {4}[/tex]×[tex]\frac{2}{9}^{-7}[/tex]=[tex]\frac{2}{9}^{2m+1}[/tex]
Answer:
-2.
Step-by-step explanation:
(2/9)^4 * (2/9)^-7 = (2/9)^-3 so
(2/9)^-3 = (2/9)^(2m+1)
So -3 = 2m + 1 ( as the base 2/9 is common to both sides of the equation)
2m = -4
m = -2.
a football team ran two plays. on the first play, the quarterback was tackled for -8 yards. on the second play, the running back ran for 10 1/2 yards. on which play did the team gain more yards?
Answer:
both are 2cnd play
Step-by-step explanation:
20,24,28,32,... you can help me the way you do.
Answer:
4n + 16
Step-by-step explanation:
Difference = +4 each time
20 - 4(1) = 16
Therefore nth term = 4n + 16
Proof:
4(2) + 16 = 24
4(3) + 16 = 28
What would the answer be (: ASAP plsss
Answer:
t = -3
Step-by-step explanation:
Heidi is saving for a new bike. She has already saved $57. If Heidi earns
$9 per hour babysitting, how many hours does she need to babysit to
afford the bike which costs $129? Write and solve a linear function to solve.
Type your answer as an integer.
Answer:
8 hours
Step-by-step explanation:
57 + 9h = 129
9h = 72
h = 8
Heidi needs to babysit for 8 hours to afford the new bike.
What is the linear equation?
The linear equation is the algebraic form of equation whose variable has the exponent of one. It is the combination of two variables and a constant value present in them.
For the given situation,
Heidi's savings = $57
Amount for babysitting per hour = $9
Total cost of the bike = $129
Let us consider 'x' for hours she needs to babysit.
This can be represented as linear equation as
[tex]57 +9h=129[/tex]
⇒ [tex]9h=129-57[/tex]
⇒ [tex]9h=72[/tex]
⇒ [tex]h=8[/tex]
Hence we can conclude that Heidi needs to babysit for 8 hours to afford the new bike.
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Solve x/8 + 5/6 =2 . Justify each step.
Answer:
x=28/3
Step-by-step explanation:
Answer:
x=9 and 1/3
Step-by-step explanation:
x/8+5/6=2
Common denominator will be 48. So:
6x/48+40/48=2
That means that (6x+40)/48=2
(since they both have the same denominator)
Now, multiply 2 by 48. You get 96.
6x+40=96
Subtract 40
6x=56
x=9 and 1/3
QUESTION 9 Let A = 2 9.1 Find the eigenvalues of A. (3) 9.2 Find bases for the eigenspaces of A. (6) 9.3 Is A diagonalisable? Give reasons. (1) 9.4 Find a matrix P and a diagonal matrix D such that P-¹AP = D. (2) 9.5 Find A23. (You may write 223, for example, as it is without calculating its value.) 9.6 Use the above to solve the following system of differential equations: (6) 3/₁ = ₁ + 2x₂ 3/₂ = 21₁ + 1₂
X(t) = Pexp(Dt)P⁻¹X(0),where X(0) is the initial Condition.
9.1 To find the eigenvalues of a matrix A is equivalent to finding the solutions to the equation det(A- λI) = 0. λ is an eigenvalue of A if and only if λ is a solution of the characteristic equation det(A- λI) = 0.
We have A = [2 9; 1 2]
The characteristic equation is given by|2- λ 9| = (2- λ)(2- λ) - 9 = λ² - 4λ - 5 = 0Therefore, the eigenvalues are given byλ₁ = -1 and λ₂ = 5.9.2
The eigenspace of a matrix A associated with an eigenvalue λ is the set E of all eigenvectors of λ, together with the zero vector E = ker(A - λI).
Thus we must solve the equations(A - λ₁I)x = 0 and (A - λ₂I)x = 0.For λ₁ = -1, we have A + I = [3 9; 1 3],
giving(A + I)x = 0 ⇒ x₁ + 3x₂ = 0 ⇒ x₁ = - 3x₂.So the eigenspace E₁ = Span{(-3, 1)}.For λ₂ = 5, we have A - 5I = [-3 9; 1 -3], giving(A - 5I)x = 0 ⇒ - 3x₁ + 9x₂ = 0 ⇒ x₁ = 3x₂.So the eigenspace E₂ = Span{(3, 1)}.9.3
If there exists a basis of eigenvectors for A, then A is diagonalizable. A is diagonalizable if and only if the eigenspaces Ei are such that dim(Ei) = multiplicity of λi, where λi is the ith eigenvalue of A. If so, then A is similar to a diagonal matrix .
The dimensions of E₁ and E₂ are both 1, and so dim(E₁) + dim(E₂) = 2 = n, where n is the order of the matrix.
So A is diagonalizable.9.4 Let P = [x y] be a matrix whose columns are the eigenvectors of A.
Then P-¹AP is a diagonal matrix whose diagonal entries are the eigenvalues of A.
So, we have P = [-3 3; 1 1], with P⁻¹ = [-⅓ ⅓; ⅓ ⅓] andP⁻¹AP = [-1 0; 0 5].Therefore, A = P[P⁻¹AP]P⁻¹ = [-3 3; 1 1][1 0; 0 5][-⅓ ⅓; ⅓ ⅓] = [-2 -9; 1 2].9.5 We have already found that A = PDP⁻¹ whereD = diag(-1, 5) andP = [-3 3; 1 1].
Therefore,A² = PDP⁻¹PDP⁻¹ = PD²P⁻¹= [-3 3; 1 1][1 0; 0 25][-⅓ ⅓; ⅓ ⅓] = [7 -27; 5 -19].A³ = A²A = [7 -27; 5 -19][-2 -9; 1 2] = [-187 297; -131 207].9.6
The differential equations are 3/₁ = ₁ + 2x₂ and 3/₂ = 21₁ + 1₂. We can write these asa vector equationX' = AX,where X = [x₁ x₂]ᵀ, X' = [3/₁ 3/₂]ᵀand A = [1 2; 21 1].We have already diagonalised A as A = PDP⁻¹, whereD = diag(-1, 5) andP = [-3 3; 1 1].Therefore,X' = AX ⇒ P⁻¹X' = P⁻¹AX ⇒ Y' = DY,where Y = P⁻¹X = [-1/3 2/3; 1/3 1/3]X and Y' = P⁻¹X'.SoY' = DY = [-1 -5; 2 10]Y.
The solution is given byY(t) = exp(Dt)Y(0),where exp(Dt) is the matrix exponential exp(Dt) = [e⁻ᵗ e⁻5ᵗ; -2e⁻ᵗ + 2e⁻5ᵗ 2e⁻ᵗ - e⁻5ᵗ].
Therefore,X(t) = Pexp(Dt)P⁻¹X(0),where X(0) is the initial condition.
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which of these random samples represents a representative sample of the systolic blood pressure of all patients in a hospital?
A representative sample based on the hospital scenario is option A
What is representative sample?A subset of a larger population that accurately reflects the traits, diversity, and distribution of the total population is referred to as a representative sample.
Due to time, financial, or logistical limitations, it is frequently not possible or practical to investigate an entire population when conducting research or gathering data. In these situations, researchers choose a representative sample from which to deduce generalizations about the total population.
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Kyle can type 270 words in 4 minutes. How many words per minute can Kyle type?
(ratio form)
Answer:
67.5
Step-by-step explanation:
The midpoint of AB is M(-1, -1). If the coordinates of A are (3, -6),
what are the coordinates of B?
Answer:
(-5,4)
Step-by-step explanation:
If you look at A and then at AB midpoint you will see that A is 5 down from M and 4 right from M. So, if you minus 4 from -1 you get -5, and if you add 5 from -1 you get 4. Therefor the answer is (-5,4)
Advanced math : shes correct
write the exponential function f(x)=-4*2^(1-x) in the form f(x)=ab^x
The exponential function f(x) can be written in the form f(x) = -4×(2)⁻¹×2ˣ
The exponential function f(x) = -4×2¹⁻ˣ in the form f(x) = abˣ, we can simplify it as follows:
f(x) = -4×2¹⁻ˣ
Using the property of exponents that aᵇ⁻ⁿ = aᵇ / aⁿ, we can rewrite the function as:
f(x) = -4×(2¹ / 2ˣ)
Simplifying further:
f(x) = -4×(2 / 2ˣ)
Since 2 can be written as 2¹, we can rewrite the function as:
f(x) = -4×(2¹ / 2ˣ) = -4×(2¹×2⁻ˣ) = -4×2¹⁻ˣ
Now we can see that a = -4 and b = 2⁻¹. Therefore, the exponential function f(x) can be written in the form f(x) = abˣ as:
f(x) = -4×(2)⁻¹×2ˣ
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What is the equation of the line that contains the
points (3, 5) and (7, 9)?
a. y = 2x - 1
b. y=x+2
c. y=x-2
d. y = 2x-5
Answer:
B
Step-by-step explanation:
y=kx+m
k=y2+y1 / x2+x1
(3,5) and (7,9)
k=(9-5)/(7-3)=4/4=1
Now we want to find out what m is. This is by inserting a point in the equation of the line y=kx+m.
so I'll pick (3,5)
5=1×3+m
m= 2
To check if it's correct we could try it with the other point, (7,9).
9=1×7+m
m=2
Therefor the equation would be. y=1x+2
what is the answer for
-16+x=-15
Answer:
x=1
Step-by-step explanation:
-16+x=-15
-16+x+16=-15+16 Add the terms to both sides of the equation.
After that you simplify.
