Mathematics College

Select the matrix multiplication that transforms vector A to
vector B

Select The Matrix Multiplication That Transforms Vector A Tovector B

Answers

Answer 1

Answer:

Option C.

Step-by-step explanation:

Notice that only option B and C involves the vectors in transformation

[tex]A=\begin{bmatrix}4\\2\end{bmatrix}, B=\begin{bmatrix}-8\\-4\end{bmatrix}[/tex]

However, option B is not a defined multification since the dimension of both matrices are not matching. Vector A is 2x1 but the second matrix is 2x2.

Related Questions

Is the product of a rational number and an irrational number always irrational?

Answers

Answer:

The product of any rational number and any irrational number will always be an irrational number.

Step-by-step explanation:

Calculate the derivative using implicit differentiation:

∂w /∂z,x^(5)w+w^7+wz^2+8yz=0

∂w/ ∂z= ?

Answers

Step-by-step explanation:

Given: [tex]x^5w + w^7 + wz^2 + 8yz = 0[/tex]

Taking the partial derivative of the above equation with respect to z, we get

[tex]x^5\dfrac{\partial{w}}{\partial{z}} + 7w^6\dfrac{\partial{w}}{\partial{z}} + z^2\dfrac{\partial{w}}{\partial{z}} + 2z + 8y =0[/tex]

Collecting all terms containing [tex]\frac{\partial{w}}{\partial{z}},[/tex] we get

[tex](x^5 + 7w^6 + z^2)\dfrac{\partial{w}}{\partial{z}} = -2(z + 4y)[/tex]

Then

[tex]\dfrac{\partial{w}}{\partial{z}} = \dfrac{-2(z + 4y)}{x^5 + 7w^6 + z^2}[/tex]

The derivative using implicit differentiation can be calculated and after rearranging the terms.

What is implicit differentiation?

Implicit differentiation is the technique in which the derivative of y with respect to x using implicit differentiation without having to solve the supplied equation for y.

We have:

[tex]\rm x^5w+w^7+wz^2+8yz=0[/tex]

We have to find the:

= ∂w/ ∂z

[tex]\rm \dfrac{\partial }{\partial z}[\rm x^5w+w^7+wz^2+8yz=0][/tex]

[tex]\rm x^5\dfrac{\partial w}{\partial z} +7w^6\dfrac{\partial w}{\partial z}+z^2\dfrac{\partial w}{\partial z}+2z+8y=0[/tex]

After rearranging the terms:

[tex]\rm (x^5 +7w^6+z^2)\dfrac{\partial w}{\partial z}= -2(z+4y)[/tex]

[tex]\rm \dfrac{\partial w}{\partial z}= \dfrac{-2(z+4y)}{x^5 +7w^6+z^2}[/tex]

Thus, the derivative using implicit differentiation can be calculated and after rearranging the terms.

Learn more about the implicit differentiation here:

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help me for 50 points​

Answers

Answer:

I hope it helped U

stay safe stay happy

Answer:

Step-by-step explanation:

0.92403 to the nearest ten-thousandth

Answers

Answer:

bff

Step-by-step explanation:

bfbfb

Answer:

0.9240

Step-by-step explanation:

Write a rule in words and as an algebraic expression to model the relationship.
15. The cost of beverages in a vending machine is shown.
Beverages cost
1. $1.25
2. $2.50
3. $3.75


Answers

Multiply $1.25 by the number of beverages to get the total cost.

y=1.25x

In △PQR, sinQ=25, sinR=13, and q=6. Find the side length r.
Can someone please help

Answers

Answer:

r = 5

Step-by-step explanation:

the sine rules formula :

sin Q/q = sin R/r

=> r = q× sin R / sin Q

= 6× ⅓ / (2/5)

= 2 /(2/5)

= 2× 5/2

= 5

The measure of side length "r" if sinQ=2/5, sinR=1/3, and q=6 is 5

Application of sine rule.

According to the rule, the ratio of the sides to the opposite angles is a constant. Mathematically:

p/sinP = q/sinQ = r/sinR

Given the following parameters

sinQ=2/5, sinR=1/3, and q=6.

6/(2/5) = r/(1/3)
30/2 = 3r
15 = 3r
r = 5

Hence the measure of side length "r" if sinQ=2/5, sinR=1/3, and q=6 is 5

Learn more on sine rule here: https://brainly.com/question/27174058

PLEASE HELP ASAP FOR BRAINLIEST

For each graph below, state all intervals where the function is increasing. Also state all intervals where the function is decreasing.

Answers

1.
Increasing: (-3,0) U (3,5]
Decreasing: [-5,-3) U (0,3)

2.
Increasing: (-infinity,2)
Decreasing: (2,infinity)

Evaluate81−−√4????? HELP

Answers

3*3*3*3 = 81
Answer = 3

Answer:

3 to the power of 4 is 81

Step-by-step explanation:

How many centimeters are in 5.2 inches?

[1 inch = 2.5 cm]

13 cm
11 cm
7.30 cm
1.92 cm

Answers

Step-by-step explanation:

Since,

1 inch=2.5 cm

Therefore,

5.2 inches=2.5×5.2 cm=13 cm

I hope it helped U

stay safe stay happy

Answer:

1inc=2.5cm 5.2inches=?5.2×2.552/10 × 25/10when u reduce u get260/20 answer is13cm

Which of the following statements are true? Select all that apply. A. 1,000 is both a perfect square and a perfect cube. B. 27 is a perfect cube. C. 6 is neither a perfect square nor a perfect cube. D. 9 is a perfect cube. E. 36 is a perfect square.

Answers

B, C, and E are true

Answer:

C

E

Step-by-step explanation:

1. What is the value of x in the diagram?
42
329
E
A. 64°
B. 10°
C. 20°
O D. 42°

Answers

Answer:

10

Step-by-step explanation:

B=180-42=138

C=32

triangle must have 180degrees: 180-(138+32)=X

x=180-170=10

NEED HELP INSTANTLY!!!!

What are the roots of the polynomial?

Answers

Roots of a polynomial are the points on the graph that intercept on the x axis. So for your case there are 3 roots; (2,0)(-1,0)(7,0)

Use the rule for order of operations to simplify the expression as much as possible:

22−2(9⋅2−8)

Answers

22-2(9*2-8)
22+(-18*-2+16)
22+36+16
74

74 is the answer

Need help for this question. ASAP

Answers

Answer:

Data set A1, 2, 2, 2, 3, 4, 5Mean = (1 + 2*3 + 3 + 4 + 5)/7 = 2.71Mode = 2Median = 2Mean > median ⇒ Skewed rightData set B1, 2, 3, 4, 4, 4, 5, 6, 7Mean = (1 + 2 + 3 + 4*3 + 5 + 6 + 7)/9 = 4Mode = 4Median = 4Mean = median ⇒ SymmetricalData set C1, 1, 2, 2, 3, 3, 4, 4Mean = (1*2 + 2*2 + 3*2 + 4*2)/8 = 2.5Mode = noneMedian = (2+3)/2 = 2.5Mean = median ⇒ UniformData set D1, 2, 3, 4, 5, 5, 5, 6Mean = (1 + 2 + 3 + 4 + 5*3 + 6)/8 = 3.875Mode = 5Median = (4+5)/2 = 4.5Mean < Median ⇒ Skewed left

solve for r
A= 3r(to the 2 power) i couldn’t make it a small two

Answers

Answer:

r = [tex]\sqrt{\frac{a}{3}}[/tex]

Step-by-step explanation:

1. A = 3r²

(Divide 3 by both sides)

2. A/3 = r²

(Square root both sides)

√A/3 = r

On solving for 'r' we get -  r = [tex]\sqrt{\frac{A}{3} }[/tex].

We have the following expression -

[tex]$A=3r^{2}[/tex]

We have to solve for r.

Solve for x :  [tex]$x^{2} = 9[/tex]

On solving, we get -

x = [tex]$\pm\sqrt{9}[/tex]

x = [tex]$\pm3[/tex]

According to the question, we have -

[tex]$A=3r^{2}[/tex]

[tex]$r^{2} = \frac{A}{3}[/tex]

r = [tex]\pm\sqrt{\frac{A}{3} }[/tex]

Since, the area cannot be negative, therefore -

r = [tex]\sqrt{\frac{A}{3} }[/tex]

Hence, on solving for 'r' we get -  r = [tex]\sqrt{\frac{A}{3} }[/tex].

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Find the value of x for which ABCD must be a parallelogram.

Answers

Answer:

ans is 7

Step-by-step explanation:

as we know that angle B and C are equal cause it is an alternative angle so

3x-17=25-3x

so 3x+3x=25+17

6x=42

x=7

Answer:

7

Step-by-step explanation:

The value of x only makes the figure a llgm because the question says so. It needs one more fact to be a llgm.

That said, you are 1/3 the way there. Those angles marked must be equal.

3x - 17 = 25 - 3x            Add 3x to both side

3x + 3x - 17 = 25           Combine

6x - 17 = 25                   Add 17 to both sides

6x = 25 + 17                  Combine

6x = 42                         Divide by 6

6x /6 = 42/6

x = 7

One side of a rectangle is 4 ft longer than four times another side. The area of the rectangle is 440 ft?.
Find the length of the longer side.

Answers

Answer:

One side is 87.2 The other side is 352.8

Step-by-step explanation:

(4x+4)*x=440

5x+4=440

5x=436

x=87.2

(4(87.2)+4)=352.8

Okay imma ask a question and The first person to answer and get it correct wins and I will give you a Brillantest


196x84-23+56-109+54x345-56+34x856=

Answers

Answer:

yoooo it equals 1

Step-by-step explanation:

Write an
equation that passes through the origin with a rate of change equal to 1

Answers

Answer:

y = x

Step-by-step explanation:

Rate of change is also known as the gradient of a curve and denoted as "m".

If the rate of change is equal to one then "m" is equal to 1

In the general equation of a straight line:

y = mx + c

this would look like:

y = 1x

If it passes through the origin it intercepts the y-axis at 0 so c = 0

y = x + 0

or

y = x

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a rectangle has points at 4, 2, 6, 2, 4, 7, and 6, 7 what is the perimeter of the square

Answers

Answer:

Perimeter=14

Step-by-step explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

HAVE A GREAT DAY

You give up a full-time salary of $52,000 a year to go to school for 2 years. The total cost of going to school is $36,000. If you want to be able to recover your investment in 4 years or less, what is the minimum salary you would need to earn upon earning your degree?

Answers

Answer:

$9000

Step-by-step explanation:

36000:4=$9000

How do Curves A and B compare to each other with respect to f and f ′?
The answer cannot be determined.
f: Curve B, f ′: Curve A
f: Curve A, f ′: Curve B
Neither Curve A nor Curve B are derivatives of each other.

Answers

It's likely that curve A is f and curve B is f '.

The points where curve B crosses the horizontal axis correspond to the extrema of curve A at around 0 and 0.45, and the extremum of curve B corresponds to the inflection point of curve A at around 0.2. These observations are consistent with the first and second derivative tests.

Determine whether (a) x = -1 or (b) x = 2 is a solution to this equation

Answers

Answer: (a) x = -1

Step-by-step explanation:

Given

-2 (x - 1) = 1 - 3x

Expand parentheses and apply the distributive property

(-2) · x - (-2) · 1 = 1 - 3x

-2x + 2 = 1 - 3x

Add 3x on both sides

-2x + 2 + 3x = 1 - 3x + 3x

x + 2 = 1

Subtract 2 on both sides

x + 2 = 1 - 2

[tex]\boxed{x=-1}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

Evaluate 2(x - 4) + 3x - y for x = 3.

Answers

Answer:

7 - y

Step-by-step explanation:

2(x - 4) + 3x - y for x = 3

~Substitute

2(3 - 4) + 3(3) - y

~Simplify

2(-1) + 9 - y

-2 + 9 - y

7 - y

Best of Luck!

III. Round to the nearest thousand.
21. 3,109
22. 2,786
23. 4,876
24. 8,543
25. 2,264

Answers

Answer:

21. 3000

22. 3000

23. 5000

24. 9000

25. 2000

Step-by-step explanation:

look at the number in the 'hundreds', if its between 1-4, you round the number down, and if its between 5-9, you round up.

I need answers for problem solving

Answers

Answer:

243

Step-by-step explanation:

the answer is 243 for number 6

Answer:

all you gotta do is do 2430 divided by ten

Which expression is the best estimate of the product 7/8 and 8 1/10

Answers

Answer:567/ 80 or 7(which was rounded to the nearest whole number)

Step-by-step explanation:

find x
14.5, -8, -4.5, x; The mean is 9.5. ​

Answers

Answer:

x = 36

Step-by-step explanation:

multiply 4 and 9.5 to get the total amount.

38 = 14.5 + (-8) + (-4.5) + x; hence x is 36.

Answer: x=36

Step-by-step explanation:

To solve this question, we first want to know what mean is. Mean is the same as the average. You take the sum and divide it by the amount. Since we know there are 4 numbers and the mean, we can easily find the value of x.

[tex]\frac{14.5-8-4.5+x}{4} =9.5[/tex]               [multiply both sides by 4]

[tex]14.5-8-4.5+x=38[/tex]       [combine like terms]

[tex]2+x=38[/tex]                          [subtract both sides by 2]

[tex]x=36[/tex]

Now, we know that x=36.

A rectangle has a length of 12 inches and a width of 8 inches. Lexi draws a scale copy of the rectangle using a scale factor of 2:3. What are the dimensions of the scale copy

Answers

6 inches and a width of 4 inches

The length of a bacterium is about 4 × 10-5 inch. What is the length of a bacterium written as an ordinary number?

Answers

Answerplease give moreinfo

Step-by-step explanation:

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