Don't remember how to do this. Please help!

Answer:

The mean is

A. 8.4

B.5.2

C.9.4

Step-by-step explanation:

A= {3,5,7,9,11,12,12}

B= {1,2,2,5,5,9,13}

C= { 2,5,8,9,12,13,17}

A) Find the mean of each data set

B) Find the standard deviation of each data set

C) Identify the data set with the largest and smallest standard deviation

D) Explain what the standard deviations say about the data set

Answer:

2/3 =  1/3 + 1/3 =  4/6

shade 4 of the equal parts.

Answer:

Shade 4/6 pieces of it

Step-by-step explanation:

2 out of 3 x 2 so it can fit 6 would be 4 out of 6. Basically shade half of it plus a third and that's your answer :)

Answer:

[tex]x=10[/tex]

Step-by-step explanation:

1) Subtract 10 from both sides of the equation

[tex]9x+10=11x-10\\9x+10-10=11x-10-10[/tex]

2) Simplify

a. Subtract the numbers

b. Subtract the numbers again

[tex]9x=11x-20[/tex]

3) Subtract 11x from both sides of the equation

[tex]9x=11x-20\\9x-11=11x-20-11x[/tex]

4) Simplify

a. Combine like terms

b. Combine like terms again

[tex]-2x=-20[/tex]

5) Divide both sides of the equation by the same term

[tex]-2x=20\\\frac{-2x}{-2} =\frac{-20}{-2}[/tex]

6) Simplify

a. Cancel terms that are in both the numerator and denominator

[tex]\frac{-2x}{-2} =\frac{-20}{-2} \\x=\frac{-20}{2}[/tex]

b. Divide the numbers

[tex]x=\frac{-20}{-2x} \\x=10[/tex]

Answer:  

x-int = 4.5  

y-int = -1

Buddy you don't need to spam the question btw

Answer:

ખેડૂત- ચાર દીકરા- દીકરા વચ્ચે કુસાંપ - ખેડતને ચચિંતા ૂ - ખેડૂત ની માાંદગી - ચાર દીકરાઓ ને બોલાવવા- લાકડીઓ ની ભારી માંગાવવી- દરેક દીકરાઓને ભારી ભાાંગવા કહ્ાંુ– ભારી ન ભાાંગી શકવી - લાકડીઓ છૂટી પાડી -

Answer:

I know it is a straight line because I can convert it into standard or slope intercept form.  An example of when something isn't a straight line is like y=|x|.

x=16+3y

-3y=-x+16

y=1/3x-16/3

Answer:

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Step-by-step explanation:

Answer:

the sum of two irrational number is always an irrationa number

Answer:

Option B

Step-by-step explanation:

The multiplication process of matrices works by multiplying the first row of the  first matrix by the first column of the second matrix. The same goes with the second row of the first matrix by the second column of the other matrix. Below is the solution why option B is the correct answer.

[tex]A = \left[\begin{array}{ccc}8&11\\13&5\\\end{array}\right][/tex]              

[tex]B = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right][/tex]  ← This is the Identity Matrix.

The attached screenshot shows the solution of the multiplication process. In essence, if you multiply any matrix by the identity (Matrix B), you should end up with your original matrix. Thus, multiplying Matrix A by the Identity matrix results in the same values as Matrix A.                                              

Therefore, the correct answer is B.                                    

Answer:

the number of seconds it takes the elevator to reach its destination

Step-by-step explanation:

M<3 = 115° is ur answer

Answer:-12r+20=-4(3r-5)

Step-by-step explanation:

Pls mark as brainliest

Answer:

-4(3r + 5)

Step-by-step explanation:

To factor -4 out of -12r + 20, we need to find out what are the factors that can be multiplied with -4 to get a product of -12r and 20.

To get a product of -12, we must multiply -4 by 3r.

And to get a product of 20, we must multiply -4 by -5.

Therefore, the correct answer is: -4(3r - 5)  

Please mark my answers as the Brainliest if you find this helpful :)

Answer:

18/35= 18.35

= 1.43 - 18/35=?

Answer:

Slopes:

1. m = 4/6 = 2/3

2. m = - 4/3

3. m = -2

4. x = 3

5. m = 4

6 Y = -2

Step-by-step explanation:

Answer:

no LLLLLLLLLLLLLL

9514 1404 393

Answer:

  A = -5

Step-by-step explanation:

The equation can be simplified, then solved for A.

  [tex]\dfrac{-8+A\times(-8)-(-6)}{-3+(-8)\div2\times4}=-2\\\\\dfrac{-8-8A+6}{-3-4\times4}=-2\\\\\dfrac{4A+1}{-3-16}=1\qquad\text{multiply by -1/2}\\\\4A+1=-19\qquad\text{multiply by -19}\\\\4A=-20\qquad\text{subtract 1}\\\\\boxed{A=-5}\qquad\text{divide by 4}[/tex]

Answer:

Step-by-step explanation:

Statement

1 .

m<ACB = 2(x+10)

m <DCE = 5(3x-74)

2. <ABC ≅ <DCE

3.  <ABC = <DCE

4. 2(x+10) = 5(3x-74)

5. 2x+20 = 15x -370

6. -13x = -390

7. x = 30

8. m<ACB = 2(30+10)°

9. m<ACB =80

Reason

1. Given

2. Vertical angles are congruent

3. Congruent angles have equal measure

4. Substitution POE (postulate of equivalence)

5. Distributive property of multiplication over addition and subtraction

6. - POE (subtraction POE- because we subtracted the same amount from both sides of the equation 15x and 20 )

7. division POE (we divided both sides of the equation by -13)

8. Substitution Postulate (we substituted x for 30)

9. Addition and multiplication postulate

Answer:

True

Step-by-step explanation:

Theorem 6.1 : If two lines intersect each other, then the vertically opposite angles are equal. In the statement above, it is given that 'two lines intersect each other'. ... They lead to two pairs of vertically opposite angles, namely, (i) ∠ AOC and ∠ BOD (ii) ∠ AOD and ∠ BOC.

Step-by-step explanation:

f(g(x))= f(x+1)

f(g(1))= f(-1+1)= f(0)

f(0)= 1 - 2(0)²

=1-0

=1

Answer:

6

Step-by-step explanation:

3√216 = 6

or

6 *6 is 36

36 * 6 is 216

Hope this helps!

=======================================================

Explanation:

Start at (9,-4). Move 6 units up to arrive at (9,2). This second point is on the horizontal mirror line of y = 2. We move another 6 units to get to (9,8).

Going from (9,-4) to (9,8) represents reflecting over the line y = 2.

Now apply the translation vector <-2,4> which says "shift to the left 2 units and shift up 4 units". That translation vector is the same as writing the rule [tex](x,y) \to (x-2,y+4)[/tex]

Applying that translation to the point (9,8) moves us to (7,12)

Check out the diagram below.

Answer:

14

Step-by-step explanation:

Answer:

225 miles

Step-by-step explanation:

0.75 inches : 25 miles

we can times 0.75 by 12 to get 9, so we have to times the other side by 12 too.

9 inches : 300

Answer:

Below

Step-by-step explanation:

The x-intercepts are the points on the graph where the lines cross the x-axis. This means that whatever the x-intercepts points are, the y's will be 0 :

     (-3,0) and (3,0)

The y-intercept is the point on the graph where the line crosses the y-axis. This means that whatever the y-intercept point is, the x's will be 0 :

     (0,-3)

Hope this helps!

Answer:

R: (-3, -4)

S: (-3, -1)

T: (-1, -4)

Answer:

1184 cm

Step-by-step explanation: