# Tara is using matrix multiplication to find image points of a translation. She is translating the image 2 units left and 4 units up. Which should be her first matrix?

QUESTION POSTED AT 18/01/2020 - 07:35 AM

QUESTION POSTED AT 18/01/2020 - 07:35 AM

Assuming that this is just on a 2-D coordinate plane, we must convert the expressions on to a 3-D plane since translation cannot be done on a 2-D plane. This is done by adding a dummy coordinate that does not change. Let us use "1" for this case.

Matrix:

| 0 0 -2 |(x) = (x - 2)

| 0 0 4 |(y) = (y + 4)

| 0 0 1 |(1) = 1

Matrix:

| 0 0 -2 |(x) = (x - 2)

| 0 0 4 |(y) = (y + 4)

| 0 0 1 |(1) = 1

F(x) = -85x + 3145...the domain is going to be the x value while the range is the f(x) value.

answer is going to be all whole numbers from 0 to 37

notice if u sub in 37 for x.....

f(37) = -85(37) + 3145

f(37) = - 3145 + 3145

f(37) = 0...that means after 37 minutes, there are no un-printed pages...all the pages have been printed. So ur answer would be greater then 0, but less then or equal to 37.....and they have to be whole numbers.....they cant be all real number because that includes irrational numbers.

answer is going to be all whole numbers from 0 to 37

notice if u sub in 37 for x.....

f(37) = -85(37) + 3145

f(37) = - 3145 + 3145

f(37) = 0...that means after 37 minutes, there are no un-printed pages...all the pages have been printed. So ur answer would be greater then 0, but less then or equal to 37.....and they have to be whole numbers.....they cant be all real number because that includes irrational numbers.

ANSWERED AT 16/02/2020 - 07:04 PM

QUESTION POSTED AT 16/02/2020 - 07:04 PM

6.) y - (-3) = (1 - (-3))/(3 - 1) (x - 1)

y + 3 = (1 + 3)/2 (x - 1)

y + 3 = 4/2 (x - 1)

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

y = 2x - 2 - 3 = 2x - 5

y = 2x - 5

y + 3 = (1 + 3)/2 (x - 1)

y + 3 = 4/2 (x - 1)

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

y = 2x - 2 - 3 = 2x - 5

y = 2x - 5

ANSWERED AT 16/02/2020 - 07:04 PM

QUESTION POSTED AT 16/02/2020 - 07:04 PM

"A 90° clockwise rotation around point A of pre-image JKL" is the one among the following choices given in the question that is the correct description of the transformation of triangle JKL to triangle JꞌKꞌLꞌ. The correct option among all the options that are given in the question is the first option or option "A".

ANSWERED AT 16/02/2020 - 06:45 PM

QUESTION POSTED AT 16/02/2020 - 06:45 PM

Answer: Fourth option is correct.

Step-by-step explanation:

On graph, we can display dependent variables, units, independent variables , because they can be expressed in numbers easily.

Whereas prediction is not competent every time to get expressed with numerical terms.

Hence, prediction is not likely to see on the graph.

Thus, Fourth option is correct.

ANSWERED AT 16/02/2020 - 06:40 PM

QUESTION POSTED AT 16/02/2020 - 06:40 PM

A regular dodecagon is a polygon with 12 equal sides.

Length of each side = 108/12 = 9 cm.

Length of the apothem = (9/2)/tan 15 = 9/2tan 15 = 16.79 cm

Area of each triangle = 9/2(16.79) = 75.57 cm^2

Therefore, area of the dodecagon = 12(75.57) = 906.9 cm^2

Length of each side = 108/12 = 9 cm.

Length of the apothem = (9/2)/tan 15 = 9/2tan 15 = 16.79 cm

Area of each triangle = 9/2(16.79) = 75.57 cm^2

Therefore, area of the dodecagon = 12(75.57) = 906.9 cm^2

ANSWERED AT 16/02/2020 - 06:36 PM

QUESTION POSTED AT 16/02/2020 - 06:36 PM

The solution to the problem is as follows:

For 3 notebooks you pay $1.98 so the ratio is 1:0.66.

For 10 notebooks, then we could scale the ratio and it will become 10:6.60. So they will cost you $6.60.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

For 3 notebooks you pay $1.98 so the ratio is 1:0.66.

For 10 notebooks, then we could scale the ratio and it will become 10:6.60. So they will cost you $6.60.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

ANSWERED AT 16/02/2020 - 06:35 PM

QUESTION POSTED AT 16/02/2020 - 06:35 PM

**Answer: No,** **the line through points P(–8, –10) and Q(–5, –12) is not perpendicular to the line through points R(9, –6) and S(17, –5).**

**Step-by-step explanation:**

Two lines are called perpendicular to each other if the product of their slope is -1.

Since, the slope of a line having end points and is,

Thus, the slope of line Joining points P(–8, –10) and Q(–5, –12),

While, The slope of line Joining points R(9, –6) and S(17, –5),

Since,

Thus, **the line through points P(–8, –10) and Q(–5, –12) is not perpendicular to the line through points R(9, –6) and S(17, –5).**

ANSWERED AT 16/02/2020 - 06:35 PM

QUESTION POSTED AT 16/02/2020 - 06:35 PM

The two fractions with the difference of 1/5 but with neither denominator equal to 5 is **4/10** and **2/10**.

ANSWERED AT 16/02/2020 - 06:32 PM

QUESTION POSTED AT 16/02/2020 - 06:32 PM

10ftx5ft .........................................................................................................................................................................................................................................................................................

ANSWERED AT 16/02/2020 - 06:32 PM

QUESTION POSTED AT 16/02/2020 - 06:32 PM

2:5

because 2 cups of chocolate to 5 cups of milk the ratio would be 2:5 u can't put 5:2 because it's asking the ratio of chocolate milk to chocolate pudding not chocolate pudding to chocolate milk.

~PrinncessAngel~

Happy To Help:D

ANSWERED AT 16/02/2020 - 06:23 PM

QUESTION POSTED AT 16/02/2020 - 06:23 PM

**Answer:**

**B.** Division

**Step-by-step explanation:**

We have been given an expression . We are asked to determine which operation will we use first to simplify our given expression.

Using order of operations PEMDAS, we will remove parenthesis first. To remove parenthesis, we need to simplify .

**Therefore, we will use division first to simplify our given expression.**

ANSWERED AT 16/02/2020 - 06:17 PM

QUESTION POSTED AT 16/02/2020 - 06:17 PM

GI is the bisector of the perpendicular bisector.

ANSWERED AT 16/02/2020 - 06:06 PM

QUESTION POSTED AT 16/02/2020 - 06:06 PM

**Answer:**

Options A & B

**Step-by-step explanation:**

Given is a triangle XYZ in the I quadrant. There are four more triangles A, B,C and D given.

We have to find that which one is the translation of XYZ

We know that by translation we must get a congruent triangle as XYZ.

By simply seeing we can say that C and D are not congruent with XYZ.

So these two are eliminated

Remaining are A and B.

Both A and B are right

This is because XYZ is transformed into B by shifting 7 units horizontal to the left.

A is the reflection of B about x=-5.5

Thus both A and B are right

ANSWERED AT 16/02/2020 - 06:03 PM

QUESTION POSTED AT 16/02/2020 - 06:03 PM

Yea umm Im not sure but 2, 28?

ANSWERED AT 16/02/2020 - 06:02 PM

QUESTION POSTED AT 16/02/2020 - 06:02 PM

I can be wrong, but I think that the answer is: To find the values of p, q, r and s, you should start by finding all factor **pairs** of the leading coefficiant and constant term.

ANSWERED AT 16/02/2020 - 05:35 PM

QUESTION POSTED AT 16/02/2020 - 05:35 PM

To know if the given matrix is one to one linear transformation, Row reduce the Matrix A and if it has free variables in it it means it is not a one to one linear transformation.

So, we take A and apply Row Operation and get the following matrix

1 0 0

0 1 0

0 0 0

As, it has free variables in it, it means it is not a one to one linear transformation.

Hope it helps :)

So, we take A and apply Row Operation and get the following matrix

1 0 0

0 1 0

0 0 0

As, it has free variables in it, it means it is not a one to one linear transformation.

Hope it helps :)

ANSWERED AT 16/02/2020 - 05:34 PM

QUESTION POSTED AT 16/02/2020 - 05:34 PM

The extrema of a function happen when the derivative is equal to zero. So first we calculate the derivative:R′(x)=100−0.4x

And then we solve:0=100−0.4x

0.4x=100

x=250 units

Now we can substitute back into the original equation to calculate the revenue:R(250)=100(250)−0.2(2502)

R(250)=$12500

And then we solve:0=100−0.4x

0.4x=100

x=250 units

Now we can substitute back into the original equation to calculate the revenue:R(250)=100(250)−0.2(2502)

R(250)=$12500

ANSWERED AT 16/02/2020 - 05:33 PM

QUESTION POSTED AT 16/02/2020 - 05:33 PM

Let

y------> one number

x-----> another number

we know that

------> equation A

------> equation B

substitute equation A in equation B

Find the value of y

the numbers are and

therefore

__the answer is the option B__

** and **

ANSWERED AT 16/02/2020 - 05:32 PM

QUESTION POSTED AT 16/02/2020 - 05:32 PM

**Answer:**

**Step-by-step explanation:**

Consider ΔABC with vertices such that P , Q , R are midpoints of sides BC , AC and AB .

We know that midpoint of line segment joining points is equal to

__Midpoints P , Q , R :__

We know that distance between points is given by

Length of AP :

AP =

Length of BQ :

BQ =

Length of CR :

ANSWERED AT 16/02/2020 - 05:32 PM

QUESTION POSTED AT 16/02/2020 - 05:32 PM

2. n = 8 (Identity property)

3. n = 0 (Zero Property)

4. n = 22 (Additive Identity Property)

5. n = 4 (Fractal property)

3. n = 0 (Zero Property)

4. n = 22 (Additive Identity Property)

5. n = 4 (Fractal property)

ANSWERED AT 16/02/2020 - 05:29 PM

QUESTION POSTED AT 16/02/2020 - 05:29 PM

B is easy, given 2x + 1y + 5z = 1 and 2x + 5z = 0, normal vectors of
those planes are (2,1,5) and (2,0,5), cross product will give the
parallel vector, divide by its length so it gives the unit vector

ANSWERED AT 16/02/2020 - 05:29 PM

QUESTION POSTED AT 16/02/2020 - 05:29 PM

By definition of supplementary angles,

∠ABD + ∠BDE = 180

5x + 17x - 18 = 180

22x = 198

x = 9

∠ABD = 5(9) = 45°

∠BDE = 180 - 45 = 135°

∠ABD + ∠BDE = 180

5x + 17x - 18 = 180

22x = 198

x = 9

∠ABD = 5(9) = 45°

∠BDE = 180 - 45 = 135°

ANSWERED AT 16/02/2020 - 05:29 PM

QUESTION POSTED AT 16/02/2020 - 05:29 PM

Here is the equation for this word phrase:

**1 + 2 = 9 / 3**

Quotient is the result of division.

Quotient is the result of division.

ANSWERED AT 16/02/2020 - 05:26 PM

QUESTION POSTED AT 16/02/2020 - 05:26 PM

Cos (π/2 - x) = sin x = 3/5

tan x = sin x / cos x = 3/5 / 4/5 = 3/4

csc x = 1/sin x = 1 / 3/5 = 5/3

sec x = 1/cos x = 1 / 4/5 = 5/4

cot x = 1/tan x = 1 / 3/4 = 4/3.

tan x = sin x / cos x = 3/5 / 4/5 = 3/4

csc x = 1/sin x = 1 / 3/5 = 5/3

sec x = 1/cos x = 1 / 4/5 = 5/4

cot x = 1/tan x = 1 / 3/4 = 4/3.

ANSWERED AT 16/02/2020 - 05:26 PM

QUESTION POSTED AT 16/02/2020 - 05:26 PM

You can do foil method first, to make it easier and to avoid product rule,

y= 45x^4 - 15x³ + 25x² - 72x² + 24x - 40

Simplify like terms,

y= 45x^4 - 15x³ - 47x² + 24x - 40

Now, find derivative,

dy/dx = 180x³ - 45x² - 94x + 24

y= 45x^4 - 15x³ + 25x² - 72x² + 24x - 40

Simplify like terms,

y= 45x^4 - 15x³ - 47x² + 24x - 40

Now, find derivative,

dy/dx = 180x³ - 45x² - 94x + 24

ANSWERED AT 16/02/2020 - 05:13 PM

QUESTION POSTED AT 16/02/2020 - 05:13 PM

The answer is 400 < or = 4x + 75.

ANSWERED AT 16/02/2020 - 05:09 PM

QUESTION POSTED AT 16/02/2020 - 05:09 PM

Highway is 140 and the city is 100 the highway is 40 more then the city

ANSWERED AT 16/02/2020 - 04:53 PM

QUESTION POSTED AT 16/02/2020 - 04:53 PM

**Answer:**

That would be D

**Step-by-step explanation:**

ANSWERED AT 16/02/2020 - 04:47 PM

QUESTION POSTED AT 16/02/2020 - 04:47 PM

Well you would use the equation y2-y1/x2-x1 to find any slope

ANSWERED AT 16/02/2020 - 04:36 PM

QUESTION POSTED AT 16/02/2020 - 04:36 PM

If u have $2.89 yesterday so you need to times $2.82 so I need th0 in the 10th percent so when u times

ANSWERED AT 16/02/2020 - 04:11 PM

QUESTION POSTED AT 16/02/2020 - 04:11 PM