# 39= 3m - 12 I'd really appreciate it if you showed your work.

QUESTION POSTED AT 14/12/2019 - 05:05 PM

Flip the equation. and add 12 to both sides.  Now divide both sides by 3.  ## Related questions

### The general form of the equation of a circle is x2 + y2 + 42x + 38y − 47 = 0. The equation of this circle in standard form is (x + 21)^2 + (y + 19)^2 = 849 . The center of the circle is at the point A(-19, -21) B(-21, -19) C(19, 21) D(21, 19) , and its radius is A. 127^(1/2) B. 849^(1/2) C. 851^(1/2) D. 47 units. The general form of the equation of a circle that has the same radius as the above circle is A. x^2 + y^2 + 60x + 14y + 98 = 0 B. x^2 + y^2 + 44x - 44y + 117 = 0 C. x^2 + y^2 - 38x + 42y + 74 = 0 D. x^2 + y^2 - 50x - 30y + 1 = 0 . Someone please help with those 3 multiple choice ones.

For the center of this circle the right choice will be choice B. (-21,-19)

and its radius sqrt849 = 849^(1/2) so choice B. is right for this too

ANSWERED AT 22/01/2020 - 02:27 AM

QUESTION POSTED AT 22/01/2020 - 02:27 AM

### If quadrilateral A B C D rotates 90° counterclockwise about the origin, what are the coordinates of A′ in quadrilateral A′B′C′D′ ?

If this is all the information you have I can explain it like this.

Your original coordinates are written in the form (x,y).
If you rotate the quadrilateral about the origin 90 degrees, it will be (-y,x).

For example, if the original coordinates for A is (4,6), then A'  is (-6,4).

ANSWERED AT 22/01/2020 - 02:23 AM

QUESTION POSTED AT 22/01/2020 - 02:23 AM

### To find the percent of a discount, ______________. A. find the percent of decrease from the original price to the new price. B. find the percent of increase from the new price to the original price. C. multiply the original price by the new price. D. divide the new price by the original price.

The correct and best answer would be letter B. To find the percent of a discount, you have to find or solve for the percent of increase from the new price to the original price. This is because you usually have the new price being given to you so you compare it with the old price to know the percent discount.

ANSWERED AT 22/01/2020 - 02:23 AM

QUESTION POSTED AT 22/01/2020 - 02:23 AM

### How many solutions exist for the given equation? 1/2(x + 12) = 4x – 1

X + 12 = 8x - 2
7x = 14
x = 2.
that is the solution.

ANSWERED AT 22/01/2020 - 02:19 AM

QUESTION POSTED AT 22/01/2020 - 02:19 AM

### Find the perimeter of rectangle PQRS with vertices P(0,0), Q(0,7), R(12,7) & S (12,0)

P=7+7+12+12P=14+24P=38

See the attachment for diagram

ANSWERED AT 22/01/2020 - 02:17 AM

QUESTION POSTED AT 22/01/2020 - 02:17 AM

### A sequence is defined recursively using the formula f(n + 1) = f(n) – 5 . Which sequence could be generated using this formula? *1, –5, 25, –125, ... *2, 10, 50, 250, ... *3, –2, –7, –12, ... *4, 9, 14, 19, ...

Option C. 3, -2, -7, -12....

Step-by-step explanation:

The sequence is defined recursively using the formula f(n+1) = f(n) - 5

We have to identify the sequence generated by this formula.

B). 1, -5, 25, -125.....

f(n+1) = -5 and f(n) = 1

Therefore - 5 = 1 - 5

⇒ -5 ≠ -4

This sequence is not following the formula.

B). 2, 10, 50, 250.........

f(n+1) = 10 and f(n) = 2

Now we use the formula

10 = 2 - 5

10 ≠ -3

This sequence is not following the formula.

C). 3, -2, -7, -12

f(n+1) = -2 and f(n) = 3

We put this value in the formula

-2 = 3 - 5

-2 = -2

Therefore , the sequence is following the formula.

D). 4, 9, 14, 19........

f(n+1) = 9 and f(n) = 4

9 = 4 - 5

9 ≠ -1

Therefore the formula is not applicable to form this sequence.

ANSWERED AT 22/01/2020 - 02:16 AM

QUESTION POSTED AT 22/01/2020 - 02:16 AM

### A cylinder has a height of 16 cm and a radius of 5 cm. A cone has a height of 12 cm and a radius of 4 cm. If the cone is placed inside the cylinder as shown, what is the volume of the air space surrounding the cone inside the cylinder?

See the attachments for detailed solution

ANSWERED AT 22/01/2020 - 02:16 AM

QUESTION POSTED AT 22/01/2020 - 02:16 AM

### Mark wants to know how many families in his neighborhood plan to attend the neighborhood party. He puts all 80 of the neighborhood addresses in a hat and draws a random sample of 20 addresses. He then asks those families if they plan to attend the party. He finds that 20% of the families plan to attend the party. He claims that 20% of the neighborhood families would be expected to attend the party. Is this a valid inference? A. No, this is not a valid inference because he asked only 20 families B. No, this is not a valid inference because he did not take a random sample of the neighborhood C. Yes, this is a valid inference because he took a random sample of the neighborhood D. Yes, this is a valid inference because the 29 families speak for the whole neighborhood I know that is not A or B. Please help:)

C, yes cause he took a random sample,

ANSWERED AT 22/01/2020 - 02:14 AM

QUESTION POSTED AT 22/01/2020 - 02:14 AM

### The function T(n) is defined below. Which of the following are equal to T(8)? Check all that apply. T(n) = 4n - 5 A. 27 B. 37 C. T(5) + T(3) D. T(7) + 4

B is the answer the rest doesn't make since to me

ANSWERED AT 22/01/2020 - 02:14 AM

QUESTION POSTED AT 22/01/2020 - 02:14 AM

### R varies directly as s. find r when s=12 and k=2

r varies directly as s,

r=ks

r=(2)(12)
r=24

ANSWERED AT 22/01/2020 - 02:13 AM

QUESTION POSTED AT 22/01/2020 - 02:13 AM

### What is the x-intercept of the line containing the points (-6,10) and (12,2)

First, find the slope,   Now using point slope form, pick a coordinate, I'll pick (12,2)   Now, when x-intercept, 'y' will be 0,  ANSWERED AT 22/01/2020 - 02:09 AM

QUESTION POSTED AT 22/01/2020 - 02:09 AM

### What is the value of x in the equation (x + 12) = (x + 14) – 3?

These points, x = –2/3 and x = 3

ANSWERED AT 22/01/2020 - 02:08 AM

QUESTION POSTED AT 22/01/2020 - 02:08 AM

### Polygon ABCD is translated to create polygon A'B'C'D. Point A is located at (1,5) and point A' is located (-2,1). What is the distance from B to B'

ANSWERED AT 22/01/2020 - 02:03 AM

QUESTION POSTED AT 22/01/2020 - 02:03 AM

### Which set does 4.333...belong to? A. Intergers and irrational numbers B. Rational and natural numbers C. Rational and real numbers D. Irrational and whole numbers

ANSWERED AT 22/01/2020 - 02:03 AM

QUESTION POSTED AT 22/01/2020 - 02:03 AM

### Which statement is true? A. 1.2<-6.9 B. 6.9<1.2 C. -6.9<-1.2 D. -1.2>6.9

C because if you look at it on a number line -2.9 is greater than -6.9.

ANSWERED AT 22/01/2020 - 02:03 AM

QUESTION POSTED AT 22/01/2020 - 02:03 AM

### $30:$6 Simplify the ratio. A. 1:5 B. 3:15 C. 5:1 D. 15:3

The answer is C because 6 goes into 6 one time, and 30 five times, giving you 5:1.

ANSWERED AT 22/01/2020 - 02:01 AM

QUESTION POSTED AT 22/01/2020 - 02:01 AM

### Which transformation is not a rigid transformation? A. dilation B. reflection C. rotation D. translation

ANSWERED AT 22/01/2020 - 01:58 AM

QUESTION POSTED AT 22/01/2020 - 01:58 AM

### Julio checked the temperature of a bag of frozen peas and found it was at −12°C. After he left the bag out of the freezer for an hour, its temperature rose to 7°C. What was the change in temperature in an hour?

12 i remembered this from a buddy once

ANSWERED AT 22/01/2020 - 01:56 AM

QUESTION POSTED AT 22/01/2020 - 01:56 AM

### (2.03) The table shows the solution to the equation |2x − 3| − 1 = 2: Step 1 |2x − 3| = 2 + 1 Step 2 |2x − 3| = 3 Step 3 2x − 3 = 3 or 2x + 3 = 3 Step 4 2x = 6 or 2x = 0 Step 5 x = 3 or x = 0 Which is the first incorrect step? (1 point)

The first incorrect step would be step number three since when solving Absolute-Value Equations, when you isolate the Absolute-Value bars and the terms inside of it, the next step should be to make two equations: one that equals the original number given on the right side of the equal sign and one that is the opposite of the number on the equal sign. For example, in this case, Step three should have turned out more like this:

|2x - 3| = 3

2x - 3 = 3 AND  2x - 3 = -3

ANSWERED AT 22/01/2020 - 01:55 AM

QUESTION POSTED AT 22/01/2020 - 01:55 AM

### Work out 5/6 -3/8 give your answer as a fraction in its lowest terms. you must show your working.

5/6 -3/8 = (4*5 -3*3)/24 = (20 -9)/24 = 11/24

ANSWERED AT 22/01/2020 - 01:53 AM

QUESTION POSTED AT 22/01/2020 - 01:53 AM

### Claudias regular shift is from 3pm to 8 pm. All employees must take two 15 minute breaks. This divides the shift into 3 work periods. when should claudia start her first break so that her 3 work periods are the same length

148 x 3 = 4 hours and 48 minutes

ANSWERED AT 22/01/2020 - 01:53 AM

QUESTION POSTED AT 22/01/2020 - 01:53 AM

### Whats the similarity between 85,19,17,12 and 1

They are all less than 86
They are all positive integers
They are all real numbers
They are all natural numbers
They are all whole numbers

ANSWERED AT 22/01/2020 - 01:52 AM

QUESTION POSTED AT 22/01/2020 - 01:52 AM

### Simplify the expression. (–2 – c)(–1) A. –2 – c B. –2 + c C. 2 + c D. 2 – c

C ) 2 + c .

Step-by-step explanation:

Given  :  (–2 – c)(–1).

To find : Simplify the expression.

Solution :  We have given

(–2 – c)(–1).

Distributes -1 over  –2 – c.

-2 ( -1)  - c ( -1) .

We know in multiplication two negative sign become positive .

2 + c .

Therefore, C ) 2 + c .

ANSWERED AT 22/01/2020 - 01:51 AM

QUESTION POSTED AT 22/01/2020 - 01:51 AM

### Use the Distributive Property to find the price of 9 CDs that cost $13.99 each. A.$125.91 B. $126.00 C.$126.90 D. $117.00 Answer: Correct option is: A.$125.91

Step-by-step explanation:

Cost of each CD= $13.99 Cost of 9 CDs=$13.99×9

= $13.99(10-1) =$ (13.99×10-13.99×1)   (using distributive property)

= $(139.9-13.99) =$125.91

Hence, Correct option is:

500÷100×4=$20$20×5=$100 thus ans is c ANSWERED AT 22/01/2020 - 01:48 AM QUESTION POSTED AT 22/01/2020 - 01:48 AM ### Two beauticians, Lydia and Jackie, are working on your hair. Lydia can complete the work in 2 hours, while Jackie can complete the work in 1 hour. How many hours do the beauticians take if they work together? A. one half B.three halvess C.two thirds D.four thirds Answer: Option C. Step-by-step explanation: Two beauticians Lydia and Jackie are working on your hair. Lydia takes the time to complete the work = 2 hours Per hour work done by Lydia = 1/2 Jackie complete the work = 1 hour In one hour total work done by both Jackie and Lydia together = therefore, time taken by both to complete the work will be = = Option C. two thirds is the correct option. ANSWERED AT 22/01/2020 - 01:47 AM QUESTION POSTED AT 22/01/2020 - 01:47 AM ### Lila earns$8.75/h at her job. How many hours must Lila work to earn \$105? Complete the equation to model the problem. Use h to represent the unknown value. ____= 8.75 x _____

the equation is 105=8.75×h

ANSWERED AT 22/01/2020 - 01:45 AM

QUESTION POSTED AT 22/01/2020 - 01:45 AM

### What are the discontinuities of the function f(x) = the quantity of x squared plus 6 x plus 9, all over 3 x plus 15.? A. x ≠ −3 B.x ≠ −2 C. x ≠ −8 D. x ≠ −5

The correct option is D.

Step-by-step explanation:

The given function is  Using algebraic property:   A rational function is discontinuous at that point where the value of denominator equal to 0.

Equate denominator equal to 0.   Therefore function is discontinuous at .

The discontinuity of the function is The function f(x) is not defined at .Therefore option D is correct.

ANSWERED AT 22/01/2020 - 01:45 AM

QUESTION POSTED AT 22/01/2020 - 01:45 AM