Answer:
B, A
Step-by-step explanation:
In the first equation, if an unknown number plus 17 equals 66, then what step would you take?
For example, if an unknown number plus 2 equaled 3, then you would know that number is 1, right? What steps did you take to get that? You subtracted 2 from both sides.
In this example, if x + 17 = 66, then subtracting 17 from both sides gets us x = 49.
The same applies for the second example. If x minus 54 equals 125, then you would add 54 to get x = 179.
what does the distribution of a random variable give us?
if you could please help me that would be great.
A computer randomly puts a point inside the rectangle. What is the probability
that the point does not land in triangle T?
Answer:
87.5%
Step-by-step explanation:
The area of the entire rectangle is 8 by 6,
8x6=48 so the area is 48 units^2.
The area of the triangle is A=1/2bh
A=1/2(2)(6)
A=1(6)
A=6 units^2
6/48=0.125
0.125=12.5%
You need to find the percent it will not land in the triangle, so subtract 12.5 from 100.
100-12.5=87.5
There is an 87.5% chance it will not land in the triangle
Answer:
Just took test its 7/8
Step-by-step explanation:
write this function in standard form, y+2=-3(x-3)
Step-by-step explanation:
Standard Form is
Ax+by+c=0
So for this question it will be
3x+y=7
PLEASE HELP ON A TIMER EXTRA POINTS ONLY ANSWER IF YOU KNOW NO LINKSSSSS THANKS BYE. The triangle represents a scale drawing that was created by using a factor of 2. 5 in. 5 in. 5 in. [Not drawn to scale] Which is true of the measures of the sides of the original triangle? 1 O Each side of the original triangle is į the length of each side of the scale drawing. Each side of the original triangle is 2 times the length of each side of the scale drawing
Answer:
Each side of the original triangle is 1/2 the length of each side of the scale drawing
Step-by-step explanation:
The scale drawing was created using a factor of 2 ⇒ each side of the original triangle was multiplied by 2 ⇒ the original triangle lengths are half the size of the scale drawing
Answer:
Each side of the original triangle is 2 times the length of each side of the scale drawing.
A small swimming pool contains 6 kiloliters of water. How many liters of water does the pool contain?
the pool contains 6,000 liters of water
Answer:
6000
Step-by-step explanation:
There's 0.001 kiloliters in a liter
1kl=1000 liters
show that if x is an eigenvector of a belonging to an eigenvalue , then x is also an eigenvector of b belonging to an eigenvalue of b. how are and related?
This shows that the difference between the eigenvalues of x for vector A and B is related to the commutator [A, B] and the eigenvector of x for matrix B.
To show that if x is an eigenvector of matrix A belonging to an eigenvalue λ, then x is also an eigenvector of matrix B belonging to an eigenvalue μ, we can start with the eigenvector equation for matrix A:
A x = λ x
Multiplying both sides by matrix B, we get:
B (A x) = B (λ x)
Using the associative property of matrix multiplication, we can rewrite the left side as:
(B A) x = (A B) x
Substituting the eigenvector equation for matrix A, we get:
(λ B) x = (A B) x
Since x is nonzero, we can divide both sides by x:
λ B = A B
This shows that if x is an eigenvector of matrix A belonging to eigenvalue λ, then it is also an eigenvector of matrix B belonging to eigenvalue μ = λ.
The matrices A and B are related through the commutator [A, B] = AB - BA. We can rewrite the equation λ B = A B as:
λ B - A B = [A, B] B
Since x is nonzero, we can multiply both sides by x:
λ B x - A B x = [A, B] B x
Using the eigenvector equation for matrix A and the fact that x is an eigenvector of matrix A, we get:
λ x - μ x = [A, B] B x
Simplifying, we get:
(λ - μ) x = [A, B] B x
To know more about vector,
https://brainly.com/question/30907119
#SPJ11
Harry reads that a particular element has an atom with a mass of 0.000000000012 grams. What is the weight of the atom expressed in scientific notation?
A.
1.2 × 10-9 grams
B.
1.2 × 10-11 grams
C.
1.2 × 1011 grams
D.
1.2 × 1012 grams
Answer:
Since this number is small we know that the exponent will be negative.
In scientific notation the decimal must be between the first two NON zero numbers. So move the decimal and count how many positions it was moved.
1.2 x 10 ^-11
Step-by-step explanation:
Kareem the trainer has two solo workout plans that he offers his clients: plan a and plan b. each client does either one or the other (not both). on wednesday there were 5 clients who did plan a and who did plan b. on thursday there were 3 clients who did plan a and 8 who did plan b. kareem trained his wednesday clients for a total of 6 hours and his thursday clients for a total of 7 hours. how long does each of the workout plans last?
The only non-negative integer solutions that satisfy these conditions are x = 1 and y = 1. Hence, each of the workout plans, Plan A and Plan B, lasts for 1 hour.
Let's denote the duration of Plan A as "x" hours and the duration of Plan B as "y" hours. From the given information, we can form two equations: Equation 1: 5x + 3y = 6 (total training hours on Wednesday), Equation 2: 5y + 8y = 7 (total training hours on Thursday). Simplifying Equation 1, we get: 5x + 3y = 6 => y = (6 - 5x)/3. Substituting this value of y into Equation 2, we have: 5((6 - 5x)/3) + 8x = 7
Now we can solve this equation to find the value of x: (30 - 25x)/3 + 8x = 7, 30 - 25x + 24x = 21, x = -9. x = 9. Substituting the value of x back into Equation 1, we can find y: 5(9) + 3y = 6, 45 + 3y = 6, 3y = 6 - 45, 3y = -39, y = -13.
However, since we're dealing with the duration of workout plans, the values of x and y cannot be negative. Therefore, we need to revisit the equations: Equation 1: 5x + 3y = 6. Equation 2: 5y + 8y = 7. From Equation 1, we can deduce that 5x must be less than or equal to 6, and from Equation 2, we can deduce that 5y must be less than or equal to 7. The only non-negative integer solutions that satisfy these conditions are x = 1 and y = 1. Hence, each of the workout plans, Plan A and Plan B, lasts for 1 hour.
To learn more about integer, click here: brainly.com/question/31414162
#SPJ11
Divide Rs 8100 for three persons in the proportion of 2:3:4
Step-by-step explanation:
Money = Rs 1800
Ratio = 2:3:4
1st Person = 2x
2nd Person = 3x
3rd Person = 4x
X = ?
2x + 3x + 4x = 1800
9x = 1800
X = 200
1st Person = 2x = 2×200 = Rs 400
2nd Person = 3x = 3×200 = Rs 600
3rd Person = 4x = 4×200 = Rs 800
If 25 percent of your classmates have cats, and your class has 20 students, how many students have cats? (I have to show my work)
Answer:
5 students.
Step-by-step explanation:
25% is a quarter of the amount, or 1/4. A quarter of 20 is 5, since 4 times 5 is 20. So 5 students have cats.
How do you convert millimeters to centimeters?
Millimeters can be converted into centimeters by dividing the value by 10. The solution has been obtained by using the unit conversion.
What is unit conversion?
A unit conversion is used to express the same property in a different unit of measurement. For instance, you could use minutes instead of hours to represent time or feet instead of miles to indicate distance. It commonly occurs when measurements are provided in one system of units, such as feet, but are required in a different system, such as chains.
We are required to convert millimeters to centimeters.
We know that 1 centimeter = 10 millimeters
So, for converting millimeters to centimeters, we need to divide the value by 10.
Hence, millimeters can be converted into centimeters by dividing the value by 10.
Learn more about unit conversion from the given link
https://brainly.com/question/4158962
#SPJ4
Mrs. Salome charged php. 3,655.00 worth of groceries on her credit card. The balance of her credit card after she made a payment is Php 2450.00.
That sequence (2^n) appears to repeat after a few initial terms. Why must such repetition occur for every m
The sequence shows the repetition in order to show the length of the sequence.
What is a sequence?A sequence simply means an enumerated collection of objects where repetitions are allowed.
Like a set, the sequence also contains members which are called elements or terms. The number of the elements show the sequence length.
Learn more about sequence on:
https://brainly.com/question/6561461
what is the slope of this line that passes through the points (4,-17) and (-20,-1)
Answer:
-2/3
Step-by-step explanation:
slope formula:
\(\frac{y_{2}-yx_{1} }{x_{2}-x_{1} }\)
The area of a triangle is 17.5 square units. The height of the triangle is 7 units. How many units long is the base?
Answer:
5 units
Step-by-step explanation:
Area of a triangle = 1/2 * b * h , b= base h=height
17.5 = 1/2 * b * 7
Multiply by 2,
35 = 7b
Divide by 7,
b = 35/7 = 5 units
la función h(x) = 3x3 + 2x2 + 5 es par, impar o ninguna de las dos.
The given function is h(x) = 3x³ + 2x² + 5 is neither even nor odd.
What are functions?In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y.The set X is called the domain of the function and the set Y is called the codomain of the function.Functions whose domain are the non - negative integers, known as sequences, are often defined by recurrence relations.Given a function as \(${\displaystyle f\colon X\to Y}\) its graph is, formally, the set -\(${\displaystyle G=\{(x,f(x))\mid x\in X\}.}\)
Given is the function -
h(x) = 3x³ + 2x² + 5
Let f be a real-valued function of a real variable. Then f is even if the following equation holds for all x such that x and −x are in the domain of f : f(x) = f(- x).Let f be a real-valued function of a real variable. Then f is odd if the following equation holds for all x such that x and −x are in the domain of f : - f(x) = f(- x).The given function is -
h(x) = 3x³ + 2x² + 5
Now -
h(- x) = 3(- x)³ + 2(- x)² + 5
h(- x) = - 3x³ + 2x² + 5
Now -
h(- x) ≠ h(x)
h(- x) ≠ - h(x)
Therefore, the given function is h(x) = 3x³ + 2x² + 5 is neither even nor odd.
To solve more questions on algebraic expressions, visit the link below -
brainly.com/question/1041084
#SPJ1
{Question in english -
The function h(x) = h(x) = 3x³ + 2x² + 5 is even, odd, or neither.}
Can someone help with numbers 1 and 2 for both of them tell me the answer and how you get it please I need the two of them do not send me link just write please do not send me link please
Answer:
hffhbvcghbvcf given ndi
Answer:
a = 20m
b = 8ft
Step-by-step explanation:
a² = 25² - 15²
a² = 625 - 225
a² = 400
a = 20m
b² = 10² - 6²
b² = 100 - 36
b² = 64
b = 8ft
Annie is making three gift boxes, each in the shape of a cube, and wants to store them one inside the other. Her design calls for the first box to have a
2.5 inch edge with each larger box
edge increasing by ‡ inch. When she makes her largest box, what will its
surface area be?
The Surface area of the largest gift box will be 45.375 square inches.
The surface area of the largest gift box, we need to determine the edge length of the largest box and then calculate its surface area.
Given:
The first box has an edge length of 2.5 inches.
Each larger box has an edge length increasing by ⅛ inch.
To determine the edge length of the largest box, we need to know how many times the edge length increases by ⅛ inch. Since we are making three boxes in total, the edge length increases twice.
Edge length of the largest box = 2.5 inches + 2 * (⅛ inch)
= 2.5 inches + 2 * 0.125 inches
= 2.5 inches + 0.25 inches
= 2.75 inches
Now that we know the edge length of the largest box is 2.75 inches, we can calculate its surface area.
Surface area of a cube = 6 * (edge length)^2
Substituting the edge length:
Surface area of the largest box = 6 * (2.75 inches)^2
= 6 * (2.75 inches * 2.75 inches)
= 6 * (7.5625 square inches)
= 45.375 square inches
Therefore, the surface area of the largest gift box will be 45.375 square inches.
To know more about Surface.
https://brainly.com/question/16519513
#SPJ8
x^2 + 5x - 14 factorise
Answer: (x-2)(x+7)
Step-by-step explanation:
Answer: (x+7)(x-2)
Step-by-step explanation:
\(x^2+5x-14=\\x^2+7x-2x-14=\\x(x+7)-2(x+7)=\\(x+7)(x-2)\)
I need help finding a pattern of a trend and describe it it’s on the table
A trending quantity is a number that is generally increasing or decreasing. When the numbers are steadily decreasing, we have a downward trend, and when the numbers are steadily increasing, we have an upward trend.
On our problem, we have a population growth/decline starting at 2004 until 2009. If we analyze the years individually, it is not perfectly clear if the ternd is downward or upward, however, analyzing the whole table it is possible to see that we have an upward trend. If we compare two distinct points not consecutive of our table, the point closer to 2009 will present a bigger population for most points in our table, which shows a rise on the population value as the years goes by. To see it properly the ideal would be to plot the points and check the slope of the trend line.
Find the products.
Please HELP ME
1. 2/3⋅(-4/5)
2. (-5/7)⋅(75)
3. (-2/39)⋅39
4. (2/5)⋅(-3/4)
Answer:
1. -6/15
2. -405/7
3. -2
3. -3/10
Step-by-step explanation:
learn calculation.
Need help with this
Answer:
5x+2y=1b(x=\(-\frac{2}{5} y+\frac{16}{5}\) and y=\(-\frac{5}{2}x+8\))
x+8y=2n(x=2n-8y and y= \(\frac{1}{4}n-\frac{1}{8}x\))
Given each set of vertices, determine whether PQRS is a rhombus, a rectangle, or a square. List all that apply. Explain your reasoning, P(-2, -3). Q(2, - 6). R(6. - 3). S(2, 1)
Answer:
RectangleStep-by-step explanation:
Given the coordinates P(-2, -3). Q(2, - 6). R(6. - 3). S(2, 1), to determine the type of shape the quadrilateral is, we need to find the measure of the sides. To get the measure of each sides, we will take the distance between the adjacent coordinates using the formula to formula for calculating the distance between two points as shown;
D = √(x₂-x₁)²-(y₂-y₁)²
For the side PQ with the coordinate P(-2, -3). Q(2, - 6)
PQ = √(2-(-2))²-(-6-(-3))²
PQ = √(2+2)²-(-6+3)²
PQ = √4²-(-3)²
PQ = √16-9
PQ = √7
For the side QR with the coordinate Q(2, - 6) and R(6, -3)
QR = √(6-2))²-(-3-(-6))²
QR = √(4)²-(3)²
QR = √16-9
QR = √7
For the side RS with the coordinate R(6. - 3) and S(2, 1)
RS = √(2-6)²-(1-(-3))²
RS = √(-4)²-(1+3)²
RS = √16-(4)²
RS = √16-16
RS = 0
For the side PS with the coordinate P(-2, -3) and S(2, 1)
PS = √(2-(-2))²-(1-(-3))²
PS = √(4)²-(1+3)²
PS = √16-(4)²
PS = √16-16
PS = 0
For the quadrilateral to be a rectangle, then two of its sides must be equal and parallel to each other. A rectangle is a plane shape that has two of its adjacent sides equal and parallel to each other. Since two of he sides are equal i.e RS = PS and PQ = QR then the quadrilateral PQRS is a rectangle. Both rhombus and square has all of its sides equal thereby making them wrong.
4.
Jack sees gum on sale at the store. It says 12 packs of gum for $3.00. How much
is each pack of gum?
I
Answer:
12 packs of gum=$3.00
1packs of gum=$3.00/12=$0.25
The NWBC found that 16.5% of women-owned businesses did not provide any employee benefits. What sample size could be 99% confident that the estimated (sample) proportion is within 6 percentage points of the true population proportion?
A sample size of 329 would be required to be 99% confident that the estimated proportion of women-owned businesses not providing employee benefits is within 6 percentage points of the true population proportion.
To calculate the required sample size, we can use the formula:
n = (\(z^2\) * p * q) /\(e^2\)
where n is the sample size, z is the z-score corresponding to the desired level of confidence (in this case, 2.576 for 99% confidence), p is the estimated population proportion (0.165, based on the NWBC's finding), q is 1-p, and e is the maximum error we want to tolerate (in this case, 0.06 or 6 percentage points).
Substituting the values, we get:
n = (2.576^2 * 0.165 * 0.835) / \(0.06^2\)
Solving for n, we get:
n ≈ 329
Therefore, a sample size of 329 would be required to be 99% confident that the estimated proportion of women-owned businesses not providing employee benefits is within 6 percentage points of the true population proportion. Note that this assumes a simple random sample and that the population size is much larger than the sample size, so the finite population correction is not needed.
Learn more about sample size
https://brainly.com/question/30100088
#SPJ4
Work out the lengths from a to b
Give your answer to one decimal place
The lengths of a and b are 9.4 and 12 respectively using the Pythagorean theorem.
What is Pythagoras Theorem?Pythagoras theorem states for a right angled triangle that, the sum of the squares of base and altitude is the square of the hypotenuse.
Given are two right angled triangles.
For the first right angled triangle, we have to find the length of the hypotenuse.
Using Pythagoras theorem,
a² = 8² + 5²
a² = 64 + 25
a² = 89
a = √89 = 9.43398 ≈ 9.4
For the second right angled triangle, we have to find the length of the altitude.
Using Pythagoras theorem,
17² = b² + 12²
b² = 17² - 12²
b² = 145
b = √145 = 12.04159 ≈ 12
Hence the length of and b are 9.4 and 12 respectively.
Learn more about Pythagoras Theorem here :
https://brainly.com/question/343682
#SPJ9
Your question is incomplete. Most probably, the complete question with the image of the triangle is given below.
Work out the lengths of sides a and b.
Give your answers to 1 decimal place.
complex numbers are represented on a cartesian coordinate system with a horizontal real axis and a vertical ___ axis.
Answer: imaginary axis
Step-by-step explanation:
Simplify the expression. Write your answer as a power (-5)^7/(-5)^3
(-5)₇ / (-5)³ = (-5)⁷⁻³ = (-5)⁴
Find the Taylor series, centered at c= 7, for the function 1 f(x) = 2 Q f(x) = n=0 The interval of convergence is:
Find the Taylor series, centered at c=7c=7, for the function
f(x)=1x.f(x)=1x.
f(x)=∑n=0[infinity]f(x)=∑n=0[infinity] .
The interval of convergence is:
The Taylor series expansion for the function f(x) = 1/x centered at c = 7 is given by the infinite sum:
f(x) = 1/7 - 1/49(x-7) + 1/343(x-7)² - 1/2401(x-7)³ + ...
And the interval of convergence for this series is (7 - R, 7 + R),
To find the Taylor series for a function, we start by calculating the derivatives of the function at the center point (c) and evaluating them at c. In this case, we have f(x) = 1/x, so let's begin by finding the derivatives:
f(x) = 1/x f'(x) = -1/x² (derivative of 1/x)
f''(x) = 2/x³ (derivative of -1/x²)
f'''(x) = -6/x^4 (derivative of 2/x³)
f''''(x) = 24/x⁵ (derivative of -6/x⁴) ...
We can observe a pattern in the derivatives of f(x). The nth derivative of f(x) can be written as (-1)ⁿ⁺¹ * n! / xⁿ⁺¹, where n! represents the factorial of n.
Now, we can use these derivatives to construct the Taylor series expansion. The general form of the Taylor series for a function f(x) centered at c is given by:
f(x) = f(c) + f'(c)(x-c) + f''(c)(x-c)²/2! + f'''(c)(x-c)³/3! + ...
In our case, the center point is c = 7. Let's substitute the values into the series:
f(x) = f(7) + f'(7)(x-7) + f''(7)(x-7)²/2! + f'''(7)(x-7)³/3! + ...
To find the coefficients, we need to evaluate the derivatives at c = 7:
f(7) = 1/7 f'(7) = -1/49 f''(7) = 2/343 f'''(7) = -6/2401 ...
Plugging these values into the series, we get:
f(x) = 1/7 - 1/49(x-7) + 2/343(x-7)²/2! - 6/2401(x-7)³/3! + ...
Simplifying further:
f(x) = 1/7 - 1/49(x-7) + 1/343(x-7)² - 1/2401(x-7)³ + ...
Now, let's talk about the interval of convergence for this Taylor series. The interval of convergence refers to the range of values of x for which the Taylor series accurately represents the original function. In this case, the function f(x) = 1/x is not defined at x = 0.
Therefore, the interval of convergence for this Taylor series is (7 - R, 7 + R), where R is the distance from the center point to the nearest singularity (in this case, x = 0).
To know more about Taylor series here
https://brainly.com/question/30765738
#SPJ4