Transform the equation to isolate x:ax=bx + 1 how is the value of x related to the difference of a and b

Answers

Answer 1

Answer:

x = [tex]\frac{1}{a-b}[/tex]

Step-by-step explanation:

Given

ax = bx + 1

Collect the terms in x on the left side by subtracting bx from both sides

ax - bx = 1 ← factor out x from each term on the left side

x(a - b) = 1 ← divide both sides by (a - b)

x = [tex]\frac{1}{a-b}[/tex]


Related Questions

What is the equation of the line in point-slope form?

Answers

A
The graph has a slope of 1/2 and passes through the point (-4,-4), and following standard point slope form you would get the equation in the first option

Answer:

A

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 4, - 4) and (x₂, y₂ ) = (4, 0) ← 2 points on the line

m = [tex]\frac{0+4}{4+4}[/tex] = [tex]\frac{4}{8}[/tex] = [tex]\frac{1}{2}[/tex]

Using (a, b) = (- 4, - 4), then

y - (- 4) = [tex]\frac{1}{2}[/tex] (x - (- 4)), that is

y + 4 = [tex]\frac{1}{2}[/tex] (x + 4) → A

Which expression is equivalent to 6x+8?

Answers

The answer to the solution is
(FACTORING THE SOLUTION)
2 (3x + 4)

okay l gonna give you stright answer it B okay

Which equation represents a line that passes through (5, 1) and has a slope of 1/2?


y – 5 = 1/2(x –1)

y – 1/2 = 5(x –1)

y – 1 = 1/2(x –5)

y – 1 = 5(x-1/2)

Answers

Answer:

The correct answer is C

Step-by-step explanation:

If a straight line passes through [tex](x_1,y_1)[/tex] and has a slope of [tex]m[/tex] , its equation is;

[tex]y-y_1=m(x-x_1)[/tex]

In this case, we have [tex](x_1,y_1)=(5,1)[/tex] and [tex]m=\frac{1}{2}[/tex].

To find the required equation: you have to substitute [tex]x_1=5,y_1=1[/tex] and [tex]m=\frac{1}{2}[/tex] into the equation to obtain:

[tex]y-1=\frac{1}{2}(x-5)[/tex]

The correct answer is C

Your baseball team has won 6 games and lost 4 games. If the team
does not lose any more games, how many games must the team win
to have a win : loss ratio of 2:1? Explain your answer.​

Answers

Answer:

2

Step-by-step explanation:

2:1  win / loss ratio

1 = 4 loses

4 x 2 = 8

the team has 6 wins it would need to win a total of 8 to have a 2:1 ratio

The baseball team must win 2 more games to achieve a win:loss ratio of 2:1, assuming they have no additional losses.

The student's baseball team currently has a record of 6 wins to 4 losses. The question asks how many more games the team must win to achieve a win:loss ratio of 2:1, assuming no more losses occur. To achieve a 2:1 win:loss ratio, the number of wins must be twice the number of losses. Since the losses are fixed at 4, the team needs 2 times 4 (which equals 8) wins to attain this ratio. The team has already won 6 games, so they need 8 - 6, which equals 2 more wins to reach a 2:1 ratio.

Round 140.430 to the nearest whole number

Answers

140

Since .43 isn’t enough to round it up to 141 you have to round it down to 140 which is the nearest whole number

Answer:

140

Step-by-step explanation:

if you are rounding you round if 5 or over go up and if 4 or lower go down

Does anyone know this ? Please .

Answers

Answer:

5/4 hope this helps

Step-by-step explanation:

ANSWER

The correct answer is D.

EXPLANATION

The given exponentiial expression is

[tex] {5}^{ \frac{7}{3} } [/tex]

Recall that:

[tex] {a}^{ \frac{m}{n} } = \sqrt[n]{ {a}^{m} } [/tex]

We put a=5, n=3 and m=7

This implies that,

[tex]{5}^{ \frac{7}{3} } = \sqrt[3]{ {5}^{7} } [/tex]

The correct answer is D.

The last option is correct.

the ratio of chicken to pigs to horses in a farm is 10:2:3.if there is 120 chickens in the farm then the number of the horses in the farm is​

Answers

Answer:

36

Step-by-step explanation:

The 10 part of the ratio represents 120 chickens. Divide 120 by 10 to find the value of one part of the ratio.

120 ÷ 10 = 12 ← value of 1 part of the ratio, hence

3 parts = 3 × 12 = 36 ← number of horses

The number of horses on the farm is​ 36.

Given that, the ratio of chicken to pigs to horses on a farm is 10:2:3 and the number of chickens on the farm is 120.

What is the ratio?

Ratio, in math, is a term that is used to compare two or more numbers. It is used to indicate how big or small a quantity is when compared to another.

We can write the given ratio 10:2:3 as 10x: 2x: 3x.

So, 10x=120

⇒x=12

Then, the number of horses=3x=36

Therefore, the number of horses on the farm is​ 36.

To learn more about ratio visit:

https://brainly.com/question/13419413.

#SPJ2

how many 3/4 pound bags of peanuts can be from 5 pound bag

Answers

Final answer:

To determine how many 3/4 pound bags of peanuts can be made from a 5 pound bag, divide the weight of the 5 pound bag by the weight of each 3/4 pound bag.Therefore, 20/3 or 6 and 2/3 3/4 pound bags of peanuts can be made from a 5 pound bag.

Explanation:

To determine how many 3/4 pound bags of peanuts can be made from a 5 pound bag, we need to divide the weight of the 5 pound bag by the weight of each 3/4 pound bag. We can use the division operation to solve this.

5 pounds ÷ 3/4 pounds = 5 ÷ 3/4

To divide fractions, we multiply the first fraction by the reciprocal of the second fraction. The reciprocal of 3/4 is 4/3.

5 ÷ 3/4 = 5 × 4/3 = 20/3

Therefore, 20/3 or 6 and 2/3 3/4 pound bags of peanuts can be made from a 5 pound bag.

Find the coordinates of the point where y-4x=1 crosses the y axis

Answers

Answer:

(0, 1)

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

y - 4x = 1 ( add 4x to both sides )

y = 4x + 1 ← in slope- intercept form

with y- intercept c = 1 ⇒ (0, 1) ← coordinates of y- intercept

The coordinates of the point where y-4x=1 crosses the y axis is (0, 1)

The following information should be considered:

The equation of a line in slope - intercept form is  y = mx + c Here m is the slope and c the y- intercept.Now y - 4x = 1.So here we have to add 4x to the both sides. So, y = 4x + 1.Now the coordinates is (0,1)

Therefore we can conclude that The coordinates of the point where y-4x=1 crosses the y axis is (0, 1)

Learn more: brainly.com/question/6201432

choose the correct simplification of the expression (8x^2)^3.
A 24x^6
B 512x^6
C 512x^5
D 24x^5​

Answers

Answer:

The correct answer option is B. [tex] 5 1 2 x ^ 6 [/tex].

Step-by-step explanation:

We are given the following expression and we are to choose its correct simplification from the given answer options:

[tex] ( 8 x ^ 2 ) ^ 3 [/tex]

Applying the power to the terms inside the bracket to get:

[tex]8^3 \times x^{2.3[/tex]

Solving it further by applying the power property of exponent to get:

[tex] 5 1 2 x ^ 6 [/tex]

i think will be C yes iiiiiiiiiiiii

HEEEELLLLLLLLLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP ME

Answers

Answer:

41.79%

Step-by-step explanation:

To be on the swim team, we look at the right most (total) number int he table of "on the swim team" row. That is 28.

The grand total is the bottom-rightmost. That is 67.

Hence, probability of being on swim team is 28/67 = 41.79%

When 60% of a number is added to the number, the result is 192

Answers

Answer:

the number (x) is 120.

Explanation:

100% + 60% = 160% = 1.6

(just multiply it by 1.6 because it is equal to 60%)

Final answer:

The equation for the problem can be expressed as x + 0.6x = 192. To solve for x, you simplify the equation and isolate x, resulting in the answer of 120.

Explanation:

This problem is a simple algebraic problem in which we're trying to find a number that satisfies a given condition. To solve this, we need to express the problem as an equation. Let's assume the number we're looking for is denoted as x.  So, according to the problem, we have the following equation:

x + 0.60x = 192

The steps to solve this equation are as follows:

Combine like terms: 1x + 0.60x = 1.60xTo isolate x, divide both sides of the equation by 1.60: x = 192 / 1.60Doing the division on the right side, we find x = 120, which is our number.

Learn more about Algebra here:

https://brainly.com/question/32436021

#SPJ2

Suppose an investment of $1700 doubles in value every 10 years how much is investment worth after 20 years

Answers

Answer:

doubles every 10 years

20 years, so it has doubled 2 times

1700 times 4=6800

it is worth $6800

PLEASE HELP QUICK Graph the line for y+2=32(x+4) on the coordinate plane. does anyone know the cordinates will mark brainliest.

Answers

Answer:  Graph (-4, -2) and (-2, 1)

Step-by-step explanation:

[tex]\text{The given equation is: }y+2=\dfrac{3}{2}(x+4)\\\\\text{which is of the form: }y-y_1=m(x-x_1)\\\implies(x_1, y_1)=(-4, -2)\quad and \quad m=\dfrac{3}{2}\implies (x+2, y+3)\\\\.\qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad (-4+2, -2+3)=(-2, 1)[/tex]

So, two possible points are (-4, -2) and (-2, 1).

Plot those two coordinates and draw a line through them.

Answer:

Got it right on the test, here is the answer.

Step-by-step explanation:

a boat is 60% full with 48. What is the maximum carrying capacity?

Answers

Answer:

80

Step-by-step explanation:

60%=48

10%=8

8*10=80

Answer:80

Step-by-step explanation:

60/100*x=48

60/100=3/5 so,

3/5*x=48

3x=48*5

x=240/3

x=80

therefore the maximum capacity is 80 people

In the expression 6^8 what does the exponent show

Answers

Answer:

6^8=6*6*6*6*6*6*6*6

=1679616

Step-by-step explanation:

In this expression the exponent shows that how many times 6 will be multiplied.

6^8=6*6*6*6*6*6*6*6

=1679616

Geometry please help

Answers

Check the picture below.

Answer:

x=6.9 inches

Step-by-step explanation:

If a tangent and a secant are draw to a circle from the same exterior point, the square of the length of the tangent is equal to the product of the total length of the secant and the length of the external segment of the secant.

From the given diagram,

(8+4)×4=x²

12×4=x²

x²=48

x=6.9 inches

If A • B*2 = 1.8 x 10*-7, and C•B/D = 7.2 x 10*-4, find the value of A•D*2/C*2

Answers

Answer:

-7.2

Step-by-step explanation:

The value of expression A•D²/C² is 1.8 x 10⁻⁷ / D².

To find the value of A•D²/C², we can first rearrange the given equations and then manipulate them to get the desired expression.

Given equations:

A • B² = 1.8 x 10⁻⁷

C • B/D = 7.2 x 10⁻⁴

Let's manipulate the second equation to get C by itself:

C • B/D = 7.2 x 10⁻⁴

C = (7.2 x 10⁻⁴) • (D/B)

Now, substitute the expression for C from the second equation into the first equation:

A • B² = 1.8 x 10⁻⁷

A = (1.8 x 10⁻⁷) / B²

Now, we have expressions for both A and C:

A = (1.8 x 10⁻⁷) / B²

C = (7.2 x 10⁻⁴) • (D/B)

Now, let's find the value of A•D²/C²:

A•D²/C² = ((1.8 x 10⁻⁷) / B²) • (B/D)²

Since (B/D)² = B²/D²:

A•D²/C² = ((1.8 x 10⁻⁷) / B²) • (B²/D²)

Now, B² in the numerator and denominator cancel out:

A•D²/C² = 1.8 x 10⁻⁷ / D²

Thus, the value of A•D²/C² is 1.8 x 10⁻⁷ / D².

To know more about expression click here :

https://brainly.com/question/28365581

#SPJ2


Four students found the mean of the data set 26, 31, 39, 30, 16, 16, 18, 38. Which student found the correct mean?
Ashrita's work
26 +31 +39+30+ 16 + 16+ 18+ 38
26.75
Collette's work
26 +3864 - 32
Daniel's work
26+31+39 + 30+ 16+ 18+ 38
198 - 28.29
Lora's work
30+ 16 - 46 - 23

Answers

Answer:

Ashrita

Step-by-step explanation:

The mean of any set of data is found by finding the summation of all the values in the set of data then dividing it by the number of entries in the data.

Mean=Σfx/Σf

Σf=26+31+39+30+16+16+18+38= 214

Σf= 8= the number of entries.

Mean=214/8=26.75

Ashrita's work was correct.

Answer:

Ashrita

Step-by-step explanation:

When you are finding the mean of some numbers you are meant to add all the numbers then divide by the amount of numbers

Line CD passes through points C(1, 3) and D(4, –3). If the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b?

–5
–2
1
5

Answers

Answer:

5

Step-by-step explanation:

First we need to find the slope

m = (y2-y1)/ (x2-x1)

   = (-3-3)/(4-1)

  =-6/3

  = -2

Then we can use point slope form to make the equation

y-y1 = m(x-x1)

y-3 = -2(x-1)

Distribute

y-3 = -2x+2

Add 3 to each side

y-3+3 = -2x+2+3

y = -2x+5

Since this is in slope intercept form, y = mx +b, the y intercept is 5

Answer: D. 5

Step-by-step explanation: First we need to find the slope

m = (y2-y1)/ (x2-x1)

  = (-3-3)/(4-1)

 =-6/3

 = -2

Then we can use point slope form to make the equation

y-y1 = m(x-x1)

y-3 = -2(x-1)

Distribute

y-3 = -2x+2

Add 3 to each side

y-3+3 = -2x+2+3

y = -2x+5

Since this is in slope intercept form, y = mx +b, the y intercept is 5

What is the slope of the line passing through (5, -6) and (4, 3)

Answers

Answer:

-9

Step-by-step explanation:

Answer:

slope = - 9

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (5, - 6) and (x₂, y₂ ) = (4, 3)

m = [tex]\frac{3+6}{4-5}[/tex] = [tex]\frac{9}{-1}[/tex] = - 9

Carla is cutting pieces of string that are exactly 24 3/8 in long how many pieces can she cut from a ball of string that is 100 ft​

Answers

Answer:

4 1/8 pieces

Step-by-step explanation:

Since you are using a string that is 100 ft. long then and you need exactly 24 3/8 ft. sections, you would do these calculations:

3/8 = 0.375

100/24.375 = 4.1026

.1026 = 1/8

4 1/8 ft long pieces

Answer:

The string is cut into 4.1025 pieces.

Step-by-step explanation:

We are given the following information:

Length of the string =  100 feet

Length of one piece = [tex]24\displaystyle\frac{3}{8} = \displaystyle\frac{195}{8} ~feet[/tex]

Number of pieces =

Formula:

[tex]\text{Number of pieces} = \displaystyle\frac{\text{Length of string}}{\text{Length of one piece}}[/tex]

Number of pieces =

[tex]\displaystyle\frac{100}{\frac{195}{8} } = \displaystyle\frac{100\times 8}{195}\\\\=\displaystyle\frac{800}{195} = 4\displaystyle\frac{4}{39} = 4.1025[/tex]

Thus, the string is cut into 4.1025 pieces.

4x-2y-x+5y-8
What is the coefficient of the x-term of the fully simplified expression ?

Answers

Answer:The coefficient of x is 3.Step-by-step explanation:Coefficient is a multiplicative factor in some term of a polynomial, a series, or any expression; it is usually a number, but may be any expression. In the latter case, the variables appearing in the coefficients are often called parameters, and must be clearly distinguished from the other variables. The coefficients of an algebraic term can be positive or negative, and this multiplies the unknown term. For example: In 2a, 2 is the coefficient of a;In x, 1 is the coefficient of x but it is not visible;In 2/3p, 2/3 is the coefficient of p;In -3f, -3 is the coefficient of f.In 2t + t -f + 2f + 8, 3 is the coefficient of x and 1 the coefficient of y  (2t + t = 3t, - f + 2f = f)Variable is a symbol, commonly a single letter, that represents a number, called the value of the variable, which is either arbitrary, not fully specified, or unknown. Making algebraic computations with variables as if they were explicit numbers allows one to solve a range of problems in a single computation. A typical example is the quadratic formula, which allows one to solve every quadratic equation by simply substituting the numeric values of the coefficients of the given equation for the variables that represent them. For example: 2k + 4, k is the variable;-4 - 5x, x is the variable.So,4x - 2y -x +5y - 8combine the like terms4x - x -2y + 5y -83x +3y -8In 3x - 8, 3 is the coefficient of x;In 3y - 8, 3 is the coefficient of y;x and y are the variables; and -8 is the constant coefficient.

Which fraction is between 0 and 1/2

Answers

The Fraction that is between 0 and 1/2 is 2/10

The fraction 1/2 can also be written as 5/10. If you were to make a number line, you would be able to see that 2/10 is between. Here, let me order them from least to greatest:

< - 0 - - 2/10- - - 1/2- - 7/10- 3/4 - 8/10 - >

As you can see, 2/10 is between 0 and 1/2 (5/10).

The snack bar at the school purchases water bottles at wholesale and then marks them up to make a profit. It marks up the water bottles by 33 percent, an amount of $0.28. Percents Total 33% 33% 33% 100% $0.28 $0.28 $0.28 What was the wholesale price of each water bottle? $0.56 $0.84 $0.93 $1.12

PLS HELP QUICK IM TIMED!!!!

Answers

Answer:

Say that the price at the whole for a bottle is some x

We know that the Snack Bar sold them at 33% profit which is in dollars $0.28

i.e 33% x=0.28

so now its a matter of finding what x is 

writing this in algebraic form

0.33x=0.28

divide both sides of the equation by 0.33

0.33x/0.33=0.28/0.33

Therefore x=0.85 roughly

so the price per bottle at the whole sell is 85 cent

the snack bar is selling it for 1.13 dollars

assuming no tax applied 

Step-by-step explanation:

Answer:

0.84 (B)

Step-by-step explanation:

The parent function f(x)=x3 and a translation, g(x), are shown on the graph. Which represents g(x), then the translated function?

Answers

ANSWER

The correct answer is A

EXPLANATION

The parent function is

[tex]f(x) = {x}^{3} [/tex]

The function g(x) is obtained by shifting the graph of the parent function, 4 units left and 6 units up.

Therefore the transformation is of the form:

[tex]g(x) = f(x + 4) + 6[/tex]

Hence the transformed function has equation:

[tex]g(x) = {(x + 4)}^{3} + 6[/tex]

The correct answer is A

The resulting function g(x) after the translation will be g(x) = (x+4)³ + 6

Translation of functions

Translation is a way of changing the position of an object on an xy plane. According to the graph shown, the parent function of the graph is f(x) = x^3.

The translates function shows an upward translation by 4 units and horizontal translation to the left by 6 units. The resulting function g(x) after the translation will be g(x) = (x+4)³ + 6

Learn more on translation here: https://brainly.com/question/12861087

#SPJ2

Which expression is not equivalent to the other three?
A: 2x + 2+ 2x + 3x – 8
B:4 + 7x – 2
C:–2 + 5x + 2x – 4
D:8x – x – 6

Answers

Answer:

b. 4+7x-2

Explanation:

when you add like terms for the first equation it becomes 7x-6

the second one becomes 7x+2

the third one becomes 7x-6

and the last one is also 7x-6

which means the second one is not equivalent

Answer:

B. 4 + 7x – 2

Step-by-step explanation:

Assume that a population of newly discovered small creatures called “porgs” in a remote island lays eggs with three distinct appearances: patterned with dots, white, or dark grey. Last year, the porgs laid 30 dotted eggs, 40 grey eggs, and 15 white eggs. You randomly selected 25 eggs, 10 of which were dotted, 13 were grey and 2 were white. Based on this information, what is the probability that you would only collect 2 white eggs?

Answers

you have a 1/12.5 chance of getting a white egg. so the theoretical possibility of getting only two white eggs is 1/156.25. so it is very unlikely to get two white eggs

Answer:

0.029

Step-by-step explanation:

Last year, the porgs laid 30 dotted eggs, 40 grey eggs, and 15 white eggs.

Total eggs = 30+40+15 = 85 eggs

White eggs = 15

So, probability of getting 1 white egg = [tex]\frac{\text{No. of white eggs}}{\text{Total no. of eggs}}[/tex]

                                                              = [tex]\frac{15}{85}[/tex]

Remaining white eggs = 14

Total eggs remaining = 84

Probability of getting 1 white egg on second draw   = [tex]\frac{14}{84}[/tex]

So, the probability that you would only collect 2 white eggs =[tex]\frac{15}{85} \times \frac{14}{84}[/tex]

                                                                                                   =0.029

Hence the probability that you would only collect 2 white eggs is 0.029.

Someone please help me

Answers

Answer:

1 mi/1.61 km

Step-by-step explanation:

we know that

1 mile= 1.61  kilometers

To convert 1 kilometer to miles

use proportion

so

1/1.61 mi/km=x/1 mi/km

x=1 mi/1.61 km

Answer:

[tex]\frac{1 mi}{1.61km}[/tex]

Step-by-step explanation:

We are given the unit values of inch, foot and mile to convert into centimeters.

Using these conversion units, we are to determine whether which expression in the answer options can be used as the conversion factor to convert kilometers to miles.

So using the given conversion units, we can see that the following is the conversion factor to convert kilometers to miles.

[tex]\frac{1 mi}{1.61km}[/tex]

Two rigid transformations are used to map JKL To MNQ-
The first is a translation of vertex L to vertex Q. What is the
second transformation?
a reflection across the line containing LK
a reflection across the line containing jk
a rotation about point l
a rotation about point k

Answers

Answer:

Step-by-step explanation: it’s c

Answer:

C. a rotation about point L

Step-by-step explanation:

Other Questions
If you fill a glass to the brim with ice water and the ice melts, what will happen? Why are the foetal placental blood capillaries very close to the mother's blood capillaries? What statement correctly describes protons? What is the difference between Germlines mutations and somatic mutations? A ball is thrown vertically in the air with a velocity of 100ft/s. Use the projectile formula h=16t2+v0t to determine at what time(s), in seconds, the ball is at a height of 150ft How do credit card companies determine their APRS?A. Introductory APR + standard APRB. Prime rate + credit historyC. Prime rate + introductory APRD. Prime rate + standard APR ABCD ~ EFGHz=?Please help me!!! Read the sentence.I had to prove my identity to gain entrance to the building I was required to fill out an impressive number of forms.What is the best way to revise the sentence?I had to prove my identity to gain entrance to the building, I was required to fill out an impressive number of forms.I had to prove my identity to gain entrance to the building; I was required to fill out an impressive number of forms.I had to prove my identity, to gain entrance to the building I was required to fill out an impressive number of forms.I had to prove my identity: to gain entrance to the building I was required to fill out an impressive number of forms. Drag each label to the correct location in the table.Match each event with the territory conquered by Alexander the Great. Please help me! Struggling with Geometry! 45 points (proofs) According to experts in the video Presidential Power, why has presidential power expanded over time? Amendments to the U.S. Constitution have granted more power to the executive branch of government. Supreme Court decisions have expanded presidential power through executive privilege. Immediate action or response from the president has been necessary during national crises and acts of war. Congressional legislation has delegated more authority to the president. please help! ill mark you as brain if your right!!!! Gigi earned $65 for 5 hours of gardening. She earned $90 for 9 hours of office work. Which statement correctly compares Gigis earning per hour for gardening and office work?She earned $3 more per hour for office work than for gardening.She earned $4 more per hour for office work than for gardening.She earned $3 more per hour for gardening than for office work.She earned $4 more per hour for gardening than for office work. 4x - 22 = 62 + 2x 15 points If you are folding towels that have just come out of the laundry while watching television, you may find that you don't have to pay much attention to the process of folding the towels. This sort of familiar task that does not require much of your attention would be an example of a(n) ________ task. Scientific inquirya. continually refines ideasb. leads to discarding older accepted ideasc. requires logical ideasd. all of the above How many members are on the Federal Reserve board of governors? A circle has a circumference of 28.36 units what is the diameter of the circle 3x3 matrix A. r1(3 -2 0) r2(0 1 1) r3(2 -1 0). don't calculate A^-1 or raise any matrix to a power first. calculate det(2A^-2) The class of drug that increases the activity of the central nervous system is known as:stimulantsnarcoticshallucinogensdepressants