What equations are equal to 6x+9=12

Answer:

C-5 to 18 ; 1 to 225

Step-by-step explanation:

Its from the USA test prep.

Answer:

45/100   IS 45%

Step-by-step explanation:

Answer:

A) 72

Step-by-step explanation:

Okay well sice the lines AC and BD are parrallel that tells you that angles 4 is equal to 7 and angle 3 is equal to 8. Knowing this helps, now angle 3 and 4 have to equal 180 degrees cause it a strioght line. so do 180 - 108 (angle 3) equals angle 4. Once you find angle 4 degrees its the same as angle 7.

Answer:

Ruben??

Step-by-step explanation:

Just a guess, If another person answers Listen to them

Answer:

Monica paid $171 while Rachel paid $207

Step-by-step explanation:

We are told that Monic and Rachel purchased a tv for $378.

Let the amount spent by Monica be X and the amount spent by Rachel be Y.

Thus;

x + y = 378 - - - - (eq 1)

We are told that Monica paid $36 less then Rachel. Thus;

y = x + 36

Or y - x = 36 - - - (eq 2)

Add eq 1 & eq 2 together to give;

2y = 378 + 36

2y = 414

y = 414/2

y = $207

Put 207 for x in eq 1 to get;

x + 207 = 378

x = 378 - 207

x = $171

Thus;

Monica paid $171 while Rachel paid $207

Answer:

-324

Step-by-step explanation:

First, you need to just multiply the two numbers together.

36 * 9

This would give you the overall answer. Then you determine if when you multiply the numbers, if you'd need to add the integer, a.k.a, the negative sign.

Since when you multiply a negative and a positive, the answer will be negative.

So, 36 * (-9) = -324

Answer: B. Angle ABC is an obtuse angle

Step-by-step explanation:

Answer:

89

Step-by-step explanation:

80+82+83+91+89 = 425

425/5 = 85

Answer:

2.42

Step-by-step explanation:

First you need to use two points from store b to find the slope (y1-y2)/(x1-x2). I chose the first two points. (15.54-25.9)/(1.5-2.5)= 10.36. After you take another point from store b to plug into the equation y1-y2=m (x1-x2). M is the slope we just found and I used the first point.

Y1-15.54=10.36 (x1-1.5) distribute the 10.36 to the parentheses.

Y1-15.54=10.36x -15.54 get y1 by itself

Y=10.36x so store b is 10.36 a pound and store a is 7.94 a pound. 10.36-7.94= 2.42

Answer:

A

Step-by-step explanation:

it is Arithmetic because if you subtract 12 from 40 you'll get 28 , same for the others. but if you get the common ratio by dividing 40/12 which is 3.333... it's doent work for the sequence

Answer:

44

Step-by-step explanation:

[tex] {5}^{2} = {3}^{2} + {h}^{2} \\ h = 4[/tex]

therefore, area of traphozoid

[tex] \frac{1}{2} \times 4(8 + (11 + 3)) \\ = 44 \: {in}^{2} [/tex]

Answer:

1308

Step-by-step explanation:

109 x12

Answer:

PR = 15

Step-by-step explanation:

            PR = PQ + QR

   10x - 45 = 3 + x + 6  {Combine like terms}

   10x - 45 = 9 + x             {Subtract 'x' from both sides}

10x - x - 45 = 9

      9x - 45 = 9                  {Add 45 to both sides}

             9x  = 9 +45

             9x = 54

               x = 54/9

x = 6

PR = 10x - 45

     = 10*6 - 45

     = 60 - 45

PR = 15

Answer:

5.  -(6/5)

6. 1/5

7. I think 4/25 but i am not full sure

8. 2

9. -(5/8)

Step-by-step explanation:

Answer:

7/66

Step-by-step explanation:

(7/10(1/3))(5/11)

=7/10(1/3)(5/11)

=7/10(1/3)(5/11)

=7/30(5/11)

=7/66

Answer:

7/10 *1/3 =7/30*5/11 = 35/330 =7/66

Answer:

Step-by-step explanation:

-0.59x+0.29=7.2

-0.59x+0.29-0.29=7.2-0.29

-0.59x=7.2

divide both sides by -0.59

x=− 11.7118644

that can be rounded to x= -11.7

Answer:

x=-11.7

Step-by-step explanation:

-0.59x+0.29=7.2

subtract 0.29 on both sides to isolate x

-0.59x=6.91

divide -0.59 from both sides (will be a large number)

-11.711864

x=-11.7

Answer:

The two fractions are equivalent; another equivalent fraction is 3/6

Step-by-step explanation:

[tex]\frac{1}{2}[/tex] x 4 = 4/8, therefore the fractions are equivalent.

1/2 x 3 = 3/6 which is equivalent to 1/2.

Answer/Step-by-step explanation:

According to the centroid theorem, the X is ⅔ of the distance from each vertex to the midpoint of the opposite side.

Thus:

1. If CW = 15,

CX = ⅔*(15)

CX = 10

XW = ⅓*(15)

XW = 5

2. If BX = 8,

BX = ⅔*BY

3*BX = 2*BY

(3*BX)/2 = BY

(3*8)/2 = BY

24/2 = BY

12 = BY

BY = 12

XY = ⅓*BY

XY = ⅓*12

XY = 4

3. If XZ = 3, find AX and AZ.

XZ = ⅓*AZ

XZ*3 = AZ

3*3 = AZ

9 = AZ

AZ = 9

AX = ⅔*AZ

AX = ⅔*9

AX = 6

ANSWER:

f(x) = x²-1

g(x) = x-1

f/g (x)=

x²-1÷x-1 = x-1

Answer: 420

387420489

Step-by-step explanation:

9^7: 4782969

9^2: 81

81 x 47 = 387420489

Answer: It would equal 1/27.

Step-by-step explanation: Any number raised to a negative exponent, essentially means you reciprocal to get rid of the negative. After that, you do the math for the number in the denominator, without considering the negative sign. You could also do it the other way, do the function first without the negative, 3^3 is 27 and then applying the negative, reciprocal it to 1/27.

X=3 and just use Photomatix on your phone

Answer:

(a) 0.90

(b) 0.9001

Step-by-step explanation:

[tex]X_{i}\sim N(50, 100);\ i=1,2,3...16[/tex]

(a)

[tex]P ( 796.2 < \sum\limits^{16}_{i=1}{(X_{i} - 50)^{2} < 2630)=P ( \frac{796.2}{100} < \sum\limits^{16}_{i=1}{(\frac{X_{i} - 50}{10})^{2} < \frac{2630}{100})[/tex]

                                                    [tex]=P ( 7.962 < \sum\limits^{16}_{i=1}{Z_{i}^{2} < 26.3)\\=P ( 7.962\leq \chichi^{2}_{16} \leq 26.3)\\\\=P(\chi^{2}_{16}\leq 26.3)-P(\chi^{2}_{16}\leq 7.962)\\\\=0.90[/tex]

*Use the chi-square table.

(b)

[tex]P ( 726.1< \sum\limits^{16}_{i=1}{E(X_{i}-\bar X)^{2} < 2500)=P ( \frac{726.1}{100} < \frac{(n-1)S^{2}}{\SIGMA^{2}}< \frac{2500}{100})[/tex]

                                                    [tex]=P ( 7.261\leq \chi^{2}_{16-1} \leq 25.0)\\\\=P(\chi^{2}_{15}\leq 25.0)-P(\chi^{2}_{15}\leq 7.261)\\\\=0.9001[/tex]

*Use the chi-square table.

Answer:

4/17 or 0.235

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given

Corresponding angles

Find the value of ∠D

Find the value of x

Answer:

I'm not sure what you're trying to find, so I went ahead and wrote you a proof.

Step-by-step explanation:

BA ≅ BC  - Given

AD ≅ DC  - Definition of a midpoint

∠ABD ≅ ∠CBD   - Given

BD ≅ DB   - Reflexive property of ≅

∠DAB ≅ ∠DCB   -  ASA

y = 6

x = 40

C) Carla's Cooking

Explanation:

Carla's Cooking: $1000

Alonzo' Appetizers: $1400

Ben's Bistro: $2250

Carla's cooking is the cheapest.

Answer:

7y + 26

Step-by-step explanation:

6y + 24

y + 2

7y + 26

Answer:

First break up 72 into

36 x 2 x -1

Then take the square root of 36

6 square root 2 x -1

Finally make square root -1 = i

6i square root 2 is your answer

Step-by-step explanation: