Answer:
24
Step-by-step explanation:
Let t represent the volume of the tank in gallons. Then we have ...
(1/8)t + 15 = (3/4)t . . . . . . . . . . . adding 15 gallons fills the tank to 3/4
15 = (6/8 -1/8)t = (5/8)t . . . . . . . subtract 1/8t
15(8/5) = (8/5)(5/8)t . . . . . . . . . multiply by 8/5 (the inverse of 5/8)
24 = t
The tank holds 24 gallons.
For two n by n square matricies A and B,
suppose rankA = rankB = n-1.
Can rank(AB) become less than n-1 ?
(e.g. rank (AB) = n-2)
If so, I humbly ask you for an example.
Thank you very much.
No, the rank of the product of two n by n square matrices A and B, denoted as AB, cannot be less than n-1 if both A and B have ranks of n-1.
According to the Rank-Nullity theorem, for any matrix M, the sum of its rank and nullity is equal to the number of columns in M. In this case, the number of columns in AB is n, so the sum of the rank and nullity of AB must be n.
If rank(A) = rank(B) = n-1, it means that both A and B have nullity 1. The nullity of a matrix is the dimension of its null space, which consists of all vectors that get mapped to the zero vector when multiplied by the matrix. Since both A and B have rank n-1, their null spaces consist only of the zero vector.
Now, considering AB, if the rank of AB were less than n-1, it would mean that the nullity of AB is greater than 1.
However, this would violate the Rank-Nullity theorem since the sum of the rank and nullity of AB must be n, which is the number of columns.
Therefore, if rank(A) = rank(B) = n-1, the rank of AB cannot be less than n-1.
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Part a: A deli receives a large order for sandwiches for a company picnic. The company wants one club sandwich and two regular sandwiches for each person. The company also wants an extra Dagwood sandwich. A club sandwich has $3$ slices of bread. A regular sandwich has $2$ slices. A Dagwood has $5$ slices. If there are $n$ people going to the company picnic, how many slices of bread does the deli need to make this order? Write your answer as a fully simplified expression. Your answer should have the variable $n$ in it exactly once. Part b: Given that the deli ends up using $110$ slices of bread, how many people are going to the company picnic?
Answer:
Um...
I know the answer to Part A, but not to Part B.
Step-by-step explanation:
The answer for Part A is 7n + 5. Hope this helps!
Evaluate if x = 6, y = 8, and z = 3.
2(y-z)/ x-1
Answer: 2
Step-by-step explanation:
parenthesis goes first which is 8-3 (y-z) = 5. Next goes multiplication which is 2 times 5= 10. after is division which is 10 divided 6-1 (x-1). 6-1 is 5 so 10 divided 5 is 2
Please help due in 10 min.
Answer:
A: equiangular S: Right
Step-by-step explanation:
Diven {x) = 3x- 1 and 9(x) = 2x-3, for which value of x does g(X) = {2)?
The calculated value of x at g(x) = 2 is x = 2.5
How to determine the value of x at g(x) = 2from the question, we have the following parameters that can be used in our computation:
f(x) = 3x - 1
Also, we have
g(x) = 2x - 3
When g(x) - 2, we have
2x - 3 = 2
So, we have
2x = 5
Divide by 2
x = 2.5
Hence, the value of x at g(x) = 2 is x = 2.5
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Candice made a scale drawing of an Italian restaurant. She used the scale
7 millimeters = 5 meters. What is the scale factor of the drawing?
Answer:4
Step-by-step explanation:
Answer:
its actually 5:36
Step-by-step explanation:
Mary paid $349.99 for 6 patio chairs. How much did each chair cost her?
Answer:
Are you serious?
Step-by-step explanation:
That's pretty much unanswerable.
Answer:
$58.33 per chair
Step-by-step explanation:
Let be independent random variables with the common distribution function F and suppose they are independent of a geometric random variable with parameter p. Let M = max(x1,....,xN) (a) Find P{M<} by conditioning on N (b) Find P(M1} (d) Use (b) and (c) to rederive the probability you found in (a).
suppose they are independent of a geometric random variable with parameter p. Let M = max(x1,....,xN) (a) Find P{M<} by conditioning on N is nλe^(-nλx)
Given fx (x) = λe^λx
Fx (x) = 1 – e^-λx x…0
To find distribution of Min (X1,….Xn)
By applying the equation
fx1 (x) = [n! / (n – j)! (j – 1)!][F(x)]^j-1[1-F(x)]^n-j f(x)
For minimum j = 1
[Min (X1,…Xn)] = [n!/(n-1)!0!][F(x)]^0[1-(1-e^-λx)]^n-1λe^-λx
= ne^[(n-1) λx] λe^(λx)
= nλe^(-λx[1+n-1])
= nλe^(-nλx)
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PLS HURRY I AM GIVING BRAINLIEST!!!
the question is in the photo!!
In the above triangle,
1) the sum of side 1 and 2 is: 4x² + 3x + 4
2) the length of side 3 is: 5x³-6x²-12
1) To find the sum of side 1 and side 2, we simply need to add them together.
Side 1 = 3x² - x - 1
Side 2 = x² + 4x + 5
Side 1 + Side 2 = (3x² - x - 1) + (x² + 4x + 5)
= 3x² + x² - x + 4x - 1 + 5
= 4x² + 3x + 4
Therefore, the sum of side 1 and side 2 is = 4x² + 3x + 4
2) We can derive the expression of the thried side by removing the expression in (1) above form the perimeter.
That is;
(5x³-2x² + 3x - 8) - (4x² + 3x + 4)
First we distribute the negative sign
= 5x³-2x² + 3x - 8 + -1 (4x² + 3x + 4)
= 5x³-2x² + 3x - 8 + -1 (4x²) -1( 3x) -1( 4)
= 5x³-2x² + 3x - 8 + -4x² - 3x - 4
Combining like terms we have
= (5x³) (-2x²+-4x²) + (3x +- 3x) + (-8 + - 4)
= 5x³-6x²-12
Hence the missing side (thrid side is) 5x³-6x²-12
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A researcher believes that 5% of pet dogs in Europe are Labradors. If the researcher is right, what is the probability that the proportion of Labradors in a sample of 806 pet dogs would be greater than 4%
Answer:
0.9036
Step-by-step explanation:
Calculation to determine the probability that the proportion of Labradors
P(Proportion greater than 4%)
= P(z> 0.04 -0.05 /√0.05 * 0.95/806
= P(z > -1.30)
=0.9036
Thereforethe probability that the proportion of Labradors is =0.9036
Find the value of y in the following system of equations.
21x - 7y + 512= 141
13x + 9y - 5z = -19
192 8y + 232 = 30
Answer:
y=3x+53
y=-19/9 -13x/9 +5z/9
Step-by-step explanation:
i only did one and two sorry:/
Answer:
21x - 7y + 512= 141 equals y= j^21x/7 + 53
13x + 9y - 5z = -19 equals y= -19/9 - 13x/9 + 5z/9
192 8y + 232 = 30 equals
x-3 = 6
4x=8
2x = 16
Find the measure of the arc or angle indicated. Assume that lines which appear tangent are tangent.
The measure of the arc AT in this problem is given as follows:
mAT = 159º.
How to obtain the measure of arc AT?The measure of arc AT is obtained applying the two secant theorem, which states the angle measure of intersection of the two secant segments is half the difference of the measure of the far arc by the measure of the near arc.
The parameters for this problem are given as follows:
Far arc is AT.Near arc is 59º.Angle of intersection is 50º.Hence the measure of the arc AT in this problem is given as follows:
(mAT - 59)/2 = 50
mAT - 59 = 100
mAT = 159º.
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The length of the base of an isosceles triangle is x. The length of a leg is 3x
- 7. The perimeter of the triangle is 63. Find x. *
20
22
11
12
Answer:
Option C: 11 is the correct answer.
Step-by-step explanation:
Given that:
Length of base of isosceles triangle = b = x
The length of leg of triangle = a = 3x-7
Perimeter of triangle = 63
Perimeter of an isosceles triangle is given by
Perimeter = 2a + b
Putting values in the formula
63 = 2(3x-7) + x
63 = 6x-14+x
63 = 7x-14
63+14=7x-14+14
77=7x
7x=77
Dividing both sides by 7
\(\frac{7x}{7}=\frac{77}{7}\\x=11\)
The value of x is 11.
Hence,
Option C: 11 is the correct answer.
How do I graph this inequality
Answer:
-5 < x ≤ 1
Step-by-step explanation:
Bob and Sarah invest $7000 eachfor 5 years.Bob invests his money at3.5%, simple interest andSarah invests her money at 3.5% interestcompounded annually.How much more interest will Sarah have earned thanBob at the end of the 5 years?A) $1225.80O $709080D) Sa8.80B) $1313.80
Bob investment
\(\begin{gathered} I=\frac{prt}{100} \\ I=\frac{7000\times3.5\times5}{100} \\ I=\frac{122500}{100} \\ I=\text{ \$}1225 \end{gathered}\)Sarah's investment
\(\begin{gathered} A=P(1+\frac{r}{n})^{nt} \\ A=7000(1+\frac{0.035}{1})^5 \\ A=7000\times1.18768630565 \\ A=8313.80413953 \\ I=8313.80413953-7000 \\ I=\text{ \$}1313.80413953 \\ \end{gathered}\)Difference(sarah interest - Bob interest) = 1313.80413953 - 1225 = 88.8041395281 = $88.80
Therefore, Sarah have $88.80 interest more than Bob.
plss help me with this MATHEMATICS question pls and I will mark u as brainliest
Answer:
Step-by-step explanation:
Step-by-step explanation: 3. 106.977
If you apply the law of Cosines, you should get
106.977 for 3.
The population of a city decreases by 1.4% per year. If this year's population is
206,000, what will next year's population be, to the nearest individual?
Answer:
203,116.
Step-by-step explanation:
The factor of decreasing population is 100 - 1.4 = 98.6% or 0.986.
So next years population will be 206000 * 0.986
= 203,116
The next year's population be 203, 116.
What is Percentage?To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. With the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.
Given:
The population this year is 206,000.
The population of a city decreases by 1.4% per year.
So, the population in next year will be
= 206, 000 x (1- 1.4)
= 206,000(1- 0.014)
= 203, 116
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The expression 3s + s + 3 represents how much Alex and his family will spend to go to the movies. Which statement explains how this expression can be simplified?
Answer:
Step-by-step explanation:
The expression 3s + s + 3 represents the total amount Alex and his family will spend to go to the movies. To simplify this expression, we can combine like terms.
The terms 3s and s are like terms because they both have the variable "s" raised to the power of 1. To combine them, we add their coefficients:
3s + s = (3 + 1)s = 4s
Therefore, the simplified expression is 4s + 3, which represents the total amount Alex and his family will spend to go to the movies.
What is the opposite reciprocal of 2/3?
Answer:The reciprocal of 2/3 is 3/2. The product of 2/3 and its reciprocal 3/2 is 1.
Step-by-step explanation:
Sergio puts flowers in vases. He puts the same number of flowers in each
vase, as shown in the table below. How many vases does Sergio need for
112 flowers?
Answer:
Since there is so table shown here, I advice you to divide 112 with the number of flowers in each vase. Like for example lets say that the amount of flowers in each vase is 16. You would need to divide 112 and 16. Thats 7. So the "answer" would be 7. Do the same (divide 112) with the amount of flowers you have in your table.
ind the area inside 2cos 3r
(tip: use6
and6
)
The area inside the polar curve R = 2cos(3θ) for three full rotations is 6π.
The polar curve R = 2cos(3θ) is symmetric about the x-axis, with three petals that extend from θ = 0 to θ = π/3, π to 4π/3, and 5π/3 to 2π. To find the area inside the curve, we need to integrate the expression for the area element in polar coordinates over the desired region:
dA = (1/2) \(R^{2}\) dθ
The limits of integration for θ are from α = -6π to β = 6π, since we want to find the total area inside the curve for three full rotations. Thus, the integral for the area is:
A = ∫(β=6π, α=-6π) (1/2) \(R^{2}\)dθ
= ∫(β=6π, α=-6π) (1/2) (2cos(3θ))^2 dθ
= 2∫(β=6π/3, α=-6π/3) cos^2(3θ) d(3θ) (using the identity cos^2(3θ) = (1 + cos(6θ))/2)
= ∫(β=6π/3, α=-6π/3) (1/2 + (1/2)cos(6θ)) d(3θ)
= (1/2)θ + (1/12)sin(6θ) ∣(β=6π/3, α=-6π/3)
= (1/2)(6π - (-6π)) + (1/12)(sin(36π) - sin(-36π))
= 6π
Correct Question :
Find The Area Inside R=2cos(3θ) (Tip: Use Α=−6π And Β=6π )
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wilt weighs 1 1/2 times as much as Anita. together they weigh 250 lb. find anita's weight. choices for Anita's weight: 90, 100, 105, 150
Anita would weigh 100 lbs
Which is the solution to the inequality below?
1x + 2 + 5 4
0 -3 < x < -1
no solution
O x < -3
O x > -1 or x < 3
Answer:
ox,-3
Step-by-step explanation:
What would need to be used to show the triangles are congruent by AAS?
A: Nothing as the triangles can not be proved congruent by AAS.
B: Angles are congruent by vertical
angles.
C: Sides are congruent by the
reflexive property.
D: Angles are congruent by the
reflexive property.
Triangles are shown to be congruent by the statement that "Angles are congruent by vertical angles."
What is the congruent triangle?Triangles are said to be congruent if, under a correspondence, two of a triangle's sides and the angle that connects them are equal to two of another triangle's sides and the angle that connects them.
Given two triangles, Where the base of these triangles are same
And also given that the two angles are the same.
Since,
Two intersecting lines form a pair of vertical angles. The vertical angles are opposite angles with a common vertex (which is the point of intersection).
Thus, the third angle is also equal
From AAS:
AAS stands for Angle-Angle-Side. When two angles and a non-included side of a triangle are equal to the corresponding angles and sides of another triangle, then the triangles are said to be congruent
Therefore. "Angles are congruent by vertical angles" is used to show the triangles are congruent by AAS,
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does 2^5 =5^2 ? Use the drop-down menus to explain
Answer:
No. This is not true.
2x2x2x2x2 = 32
5x5 = 25
Therefore,
2^5 does NOT equal 5^2.
\(\huge\text{Hey there!}\)
\(\huge\textbf{Question reads....}\)
\(\mathbf{Does\ 2^5 = 5^2?\ Use \ the\ drop-down\ menus\ to \ explain}\)
\(\huge\textbf{Breaking down the first equation:}\)
\(\mathbf{2^5}\\\\\mathbf{= 2\times 2 \times 2 \times 2 \times 2}\\\\\mathbf{= 4 \times 4 \times 2}\\\\\mathbf{= 16 \times 2}\\\\\mathbf{= 32}\)
\(\huge\textbf{So, the first choice \boxed{answer} is:}\)
\(\huge\boxed{\mathsf{2\times2\times2\times2\times2}}\huge\checkmark\)
\(\huge\textbf{Answering number 2:}\)
\(\mathbf{Since, your\ 2\ expressed\ 5\ times, so\ your\ answer\ should\ be: }\\\\\\\huge\boxed{\textsf{Only factor is 2}}\huge\checkmark\)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\(\huge\textbf{Breaking down the second equation: }\)
\(\mathbf{5^2}\\\\\mathbf{= 5\times5}\\\\\mathbf{= 25}\)
\(\huge\textbf{So, the third choice \boxed{answer} is:}\)
\(\huge\boxed{\mathsf{5\times5}}\huge\checkmark\)
\(\huge\textbf{Answering number 4:}\)
\(\mathbf{Since, your\ 5\ expressed\ 2\ times, so\ your\ answer\ should\ be: }\\\\\\\huge\boxed{\textsf{Only factor is 5}}\huge\checkmark\)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\(\mathbf{2^5 \neq 5^2}\\\\\\\mathbf{32 \neq 25}\)
\(\large\text{Since }\rm{2^5}\large\text{ and }\rm{5^2}\large\text{ have }\large\boxed{\textbf{ no common factors }},\large\text{ they \boxed{\textbf{ are not }}}\large\text{ equal.}\)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\(\huge\text{Good luck on your assignment \& enjoy your day!}\)
~\(\frak{Amphitrite1040:)}\)
PLZZZ HELP THATS THE QUESTION I DONT GET IT
Answer:
C
Step-by-step explanation:
|15-26| = 11
|-8+19| = 11
11/3 + 11/2 = 22/6 + 33/6
22/6 + 33/6 = 55/6
What are the coordinates of the vertices of the final image? A. P’(12, -6), Q’(8, -7), R’(4, -4), and S‘(7, -1) B. P’(12, 8), Q’(8, 9), R’(4, 6), and S‘(7, 3) C. P’(-12, 6), Q’(-8, 7), R’(-4, 4), and S‘(-7, 1) D. P’(12, 6), Q’(8, 7), R’(4, 4), and S’(7, 1)
Answer:
Given that the vertices of quadrilateral PQRS are P(6,3), Q(4,2), R(2,4) and S(4,5) and the quadrilateral is dilated with a scale factor of 2, about the origin.
Now, let's find the new vertices of the dilated image:
Vertex P is dilated by a scale factor of 2, its new coordinates will be (2 × 6, 2 × 3) = (12, 6). Therefore, the new vertex P' is at (12, 6).
Vertex Q is dilated by a scale factor of 2, its new coordinates will be (2 × 4, 2 × 2) = (8, 4). Therefore, the new vertex Q' is at (8, 4).
Vertex R is dilated by a scale factor of 2, its new coordinates will be (2 × 2, 2 × 4) = (4, 8). Therefore, the new vertex R' is at (4, 8).
Vertex S is dilated by a scale factor of 2, its new coordinates will be (2 × 4, 2 × 5) = (8, 10). Therefore, the new vertex S' is at (8, 10).
Therefore, the coordinates of the vertices of the final image are P’(12, 6), Q’(8, 4), R’(4, 8), and S’(8, 10).So, the correct option is D. P’(12, 6), Q’(8, 4), R’(4, 8), and S’(8, 10).
Step-by-step explanation:
Hope this helps you!! Have a good day/night!!
The area of the rectangle is
432 square units. If the width
is 24 units, what is the length?
Answer:
18 units
Step-by-step explanation:
Area = length * width (A = L * w)
So, in order to find the length when given the width and area, you have to divide the area by the width.
432 / 24 = 18
I hope this helps! Have a lovely day!! :)
HELP MEEEEEEEEEEEEEEEEEEEEE PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
\(x=-2 \implies y=(1/3)^{-2}=3^{2}=9\\\\x=-1 \implies y=(1/3)^{-1}=3\\\\x=0 \implies y=(1/3)^0=1\\ \\ x=1 \implies y=1/3\\\\x=2 \implies y=(1/3)^2 =1/9\)
Using these points, the correct graph is shown in option C.
Given the function, f(x) = 2x 4 + 2x2 – 4x, what is the maximum number of turning points the graph can have?
Step-by-step explanation: f ( x ) = x4 - x3 - 4x2 + 4x