Please convert this thank you math experts

Answer:

AB = BA

Step-by-step explanation:

In general, AB = BA, even if A and B are both square. If AB = BA, then we say that A and B commute. For a general matrix A, we cannot say that AB = AC yields B = C. (However, if we know that A is invertible, then we can multiply both sides of the equation AB = AC to the left by A−1 and get B = C.)

Answers:

You may or may not have to type in the word "degrees", and/or use the degree symbol. I would ask your teacher for clarification.

A diagram is shown below.

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Explanation:

We'll need the law of cosines to solve for angle A.

a^2 = b^2 + c^2 - 2*b*c*cos(A)

17^2 = 36^2 + 45^2 - 2*36*45*cos(A)

289 = 3321 - 3240*cos(A)

289 - 3321  = -3240*cos(A)

-3032  = -3240*cos(A)

-3240*cos(A) = -3032

cos(A) = (-3032)/(-3240)

cos(A) = 0.935802

A = arccos(0.935802)

A = 20.64 degrees

which is approximate to 2 decimal places.

Note: The "arccos" refers to "arccosine" which is the same as inverse cosine (denoted as [tex]\cos^{-1}[/tex] on many calculators).

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Do a similar set of steps for angle B.

b^2 = a^2 + c^2 - 2*a*c*cos(B)

36^2 = 17^2 + 45^2 - 2*17*45*cos(B)

1296 = 2314 - 1530*cos(B)

1296 - 2314  = -1530*cos(B)

-1018  = -1530*cos(B)

-1530*cos(B) = -1018

cos(B) = (-1018)/(-1530)

cos(B) = 0.665359

B = arccos(0.665359)

B = 48.29 degrees

Also approximate to 2 decimal places.

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As you can probably guess by now, we could use the law of cosines to find angle C. But a much quicker shortcut is to use the fact that for any triangle, the interior angles always add to 180 degrees.

This shortcut is only possible since we know the two other angles.

Solve for C.

A+B+C = 180

C = 180-A-B

C = 180 - 20.64 - 48.29

C = 111.07 degrees

Like the others, this is approximate to 2 decimal places.

You can use a graphing tool like GeoGebra to confirm the answers. See below. Due to the SSS (side side side) triangle congruence theorem, only one triangle is possible. This means only one answer is possible per angle.

[tex]\large{\underline{\underline{\pmb{\frak {\color {blue}{Answer:}}}}}}[/tex]

5x + y = 9

- 10x + 7y = 18 [tex]\rightarrow[/tex] (ii)

Now, multiplying "5x + y = 9" by 2 we get,

10x + 2y = 18[tex]\rightarrow[/tex] (i)

Now, using Elimination method.

So, we gotta subtract Equation (i) from Equation (ii)

Equation (i) - (ii)

[tex](10x + 2y) - ( - 10x + 7y) = 18 - 18 \\ \\ \implies \: 10x + 2y + 10x - 7y = 0 \\ \\ \implies \: \cancel{10x} + 2y + \cancel{10x} - 7y = 0 \\ \\ \implies - 5y = 0 \\ \\ \implies \: y = 5[/tex]

So, the value of "y" is 5. Now we gonna put the value of "y" in Equation (i).

[tex]10x + 2y = 18 \\ \\ \implies \: 10x + 2 \times 5 = 18 \\ \\ \implies10x + 10 = 18 \\ \\ \implies10x = 18 - 10 \\ \\ \implies10x = 8 \\ \\ \implies \: x = \frac{8}{10} \\ \\ \implies \: x = \cancel{ \frac{8}{10}} \\ \\ \implies \: x = \frac{4}{5} \\ \\ \implies \: x = 0.8[/tex]

So, at the we've found the values of "x" and "y".

x = 0.8 and y = 5

[tex] \boxed{ \frak \pink{Be \: Brainly}}[/tex]

Answer:

If it doesn't tell you how long Spencer's repair took, it would just be 70+32.50 which equals $102.50

Answer:

height = 5.682 meters

Step-by-step explanation:

height = -9.8x^2 + 7x + 3

Find the axis of symmetry: x = -b/(2a)

a = -9.8 b = 7 c = 3

x = -7/(2*-9.8) = -7/-19.6 = .357 = x = +.357 secs is when max height occurs

Find the height, replace x with .561

height = -9.8(.357^2) + 11(.357) + 3

height = -9.8(.127) + 11(.357) + 3

height = -1.245+3.927+3

height = 5.682

https://www.algebra.com/algebra/homework/word/misc/Miscellaneous_Word_Problems.faq.question.292302.html

https://brainly.com/question/13891783

Answer:

246.76$

Step-by-step explanation:

199 x .24 =

47.76

199 + 47.76 =

246.76

Answer:

c. 132

Step-by-step explanation:

find the area for each space than add them for sa

a = l x w

sa = a

A scatter plot is a form of plot or mathematical diagram that displays values for two variables for a collection of data using Cartesian coordinates. The true statements are A, D, and E.

A scatter plot is a form of plot or mathematical diagram that displays values for two variables for a collection of data using Cartesian coordinates. One more variable can be presented if the points are programmed.

The following points about the scatter plot are true,

A. The graph shows a linear association

As there can be drawn a line between the two axes of the graph, and this line will give the approximate values, therefore, the graph shows a linear association. Thus, the statement is true.

B. The graph has no outliers

The graph has an outlier lying at the bottom right of the graph. Thus, the statement is False.

C. The graph shows a nonlinear association

As the graph has a linear association, it can not have a non-linear association. Thus, the statement is False.

D. The graph shows a positive association.

As the slope of the imaginary line is positive, the graph shows a positive association. Thus, the statement is true.

E. The graph could be used to show an association between the hours worked and the amount earned.

The above situation can be depicted by the given graph. Thus, the statement is true.

Learn more about Scatter Plot:

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#SPJ1

Answer:

the option b is correct answer

Answer:

c

Step-by-step explanation:

that was arrange from greatest to lowest

Answer:

169/20, 8.461, 8.49, 8 6/11

Step-by-step explanation:

You can convert all of them to decimals. 169/20 = 8.45 and 8 6/11= 8.545. Then you order the from least to greatest.

D) it is difficult to administer.

Step-by-step explanation:

Answer:

27% is the answer

And goodluck

Answer:

When biomedical engineers work within a hospital or clinic, they are more properly called clinical engineers.

Answer:

a 120 degree angle is 90 (right angle) + 30 (an acute angle)

Answer:

Q' = (-4, -2)

R' = (4, -2)

S' = (4, 2)

T' = (-4, 2)

Step-by-step explanation:

First, we can create a matrix to scale this rectangle by putting all the x coordinates in the top row and all the y coordinates in the bottom row and multiply it by 4.

Our initial matrix to multiply:

[tex]4\left[\begin{array}{cccc}-1&1&1&-1\\-2&-2&-1&-1\end{array}\right][/tex]

Moved to the origin:

[tex]4\left[\begin{array}{cccc}-1&1&1&-1\\-0.5&-0.5&0.5&0.5\end{array}\right][/tex]

Multiplied by four:

[tex]\left[\begin{array}{cccc}-4&4&4&-4\\-2&-2&2&2\end{array}\right][/tex]

This gives us the points of

Q' = (-4, -2)

R' = (4, -2)

S' = (4, 2)

T' = (-4, 2)

which are our answers.

Answer:

432 crayons

Step-by-step explanation:

24/4=6

24+24+6=54

54*8=432

Answer:

The angle measure of 1 is 62 degrees.

Step-by-step explanation:

You need to the exterior angle theorem.

This means that all the exterior angles have to equal up to 360 degrees.

You need to add everything up which should equal 298 degrees.

Then subtract 360 by 298.

The angle measure of 1 is 62 degrees.

Answer:

x = 28

y = 13/7

Step-by-step explanation:

2x + 2y = 160

xy = 52

y = 80-x

80 - x = 52

-x = -28

x = 28

y = 13/7

Answer:

If you looking for what two variables your looking for the make both of them congruent it would be e and g and then k and f im not sure if thays the answear your looking for hope this helps.

Answer:

6371. six thousand three hundred and seventy-one

Answer:

60 degrees

Step-by-step explanation:

a straight line is equal to 180 degrees. 180 - 120 = 60 degrees for x

Answer:

60 degrees

Step-by-step explanation:

both big angles are 120. 12x2=240, 360-240=120, half 120= 60.

Answer:

C

Step-by-step explanation:

Since having 1 and 5 as the most likely result is highly unlikely, the answer being 7 points on both numbers would be unfair resulting in C being the answer.

Answer:

Wanda brought 9 carrot sticks.

Step-by-step explanation:

Answer:

x = - 1 or 1 or -4 or 4

Step-by-step explanation:

x^4 - 17x^2 + 16 = 0

let y = x^2

y^2 -17y + 16 = 0

(y-16)(y-1) = 0

y = 16 or y = 1

x^2 = 16 or x^2 = 1

x^2 = 16: x = 4 or -4

x^2 = 1: x = 1 or -1

Answer:

[tex]y=-\frac{2}{3}x + 6[/tex]

Step-by-step explanation:

We are given that a line has a slope of -2/3 and passes through the point (0,6)

We want to write the equation of this line; there are 3 forms of the line that we can use:

All though while writing the equation of the line in any of these ways is acceptable, the most common way is to write it in slope-intercept form, so let's do it that way.

As we are already given the slope, we can immediately substitute m with that value.

Replace m with -2/3:

y = -2/3x + b

Now we need to find b.

As the equation passes through the point (0, 6), we can use it to help solve for b.

Substitute 0 as x and 6 as y.

6 = -2/3(0) + b

Multiply

6 = 0 + b

Add

6 = b

Substitute 6 as b.

y = -2/3x + 6

Topic: finding the equation of the line

See more: https://brainly.com/question/27645158

Answer:

4π

Step-by-step explanation:

Formula for length of an arc is 2πr(θ/360) with r being the radius and θ being the angle of the arc

2πr is the circumference of the circle and (θ/360) is the fraction of the circle the arc is

The angle of arc AB is 120° and the radius is 6

Now we can use substitution in the formula

2πr(θ/360)

2π(6)(120/360)

12π(1/3)

4π

That is the answer goodbye

- Kan Academy Advanced

Answer:

300

Step-by-step explanation:

45 minutes is 15% of x

45 = 0.15x

0.15x = 45

x = 45/0.15

x = 300

Answer: 300

Answer: 15

Step-by-step explanation:

By the alternate interior angles theorem, [tex]5x+9=84 \longrightarrow x=\boxed{15}[/tex]

Answer: the required time is 18.6 minutes.

Step-by-step explanation:

It typically takes 10–15 mins in most of the restaurants however, it also depends on the type of food you've ordered + the time you're visiting (peak time, weekends, etc).

The time may go high if the quantity ordered is more & different variety of food is ordered. 10–15 mins is typically for 2 people visiting a restaurant for lunch or dinner.

Restaurants which have high focus on customer service ensures they have sufficient staff & ingredients available during their peak hours so that wait time is minimal.

Small restaurants where customer only comes for tasty food (because they're famous) & have high number of customers visiting may at times take a longer time to deliver as they have many customers to attend and usually have less staff.

Hope this is helpful.