How many solutions exist for the given equation?
1/2(x + 12) = 4x-1
zero
one
two
infinitely many

Answers

Answer 1

Answer:

one

Step-by-step explanation:

Given

[tex]\frac{1}{2}[/tex] (x + 12) = 4x - 1 ( multiply through by 2 to clear the fraction )

x + 12 = 8x - 2 ( subtract x from both sides )

12 = 7x - 2 ( add 2 to both sides )

14 = 7x ( divide both sides by 7 )

2 = x

There is one solution to the equation, that is x = 2


Related Questions

WILL REWARD BRAINLIEST (40 POINTS PLEASE HELP)

Answers

Answer:

first of all I can't see nothing

It’s just a white picture we can’t see nothing

How can you find diameter of a circle of you the radius?

Answers

Answer:

Since [tex]\pi[/tex]r[tex]x^{2}[/tex] = d you want suck pp

Step-by-step explanation:

1. go to sleep math is lame

find the area of the semicircle (1/2 circle with a diameter of 10)

Answers

Answer:

39.25 unit²

Step-by-step explanation:

Radius of circle = diameter/2 = 10/2 = 5

Area of a circle = πr²

Area of ½ circle = ½ πr² = ½ x (22/7) x 5²

Area = 39.25 unit^2

Help I beg please show work

A 3
B 94
C 1
D 47

Answers

Answer:

Step-by-step explanation:

15x+2=9x+20

6x=18

x=3

if it's asking for the angle measure, you will just do:

15*3+2=47

0.6x + 2.7 = 0.9x


"solve the equation. show all your steps"​

Answers

Answer:

x=9

Step-by-step explanation:

0.6x+2.7=0.9x

move the terms

0.6x-0.9x=-2.7

collect like terms

-0.3x=-2.7

divide both sides

x=9

A square has a radius of 10 ft. Find the area of the square

Answers

Answer:

Hello hello

Step-by-step explanation:

Answer:

a square does not have a radius

Step-by-step explanation:

but you can find the area by squaring one side

HELP ME PLEASEEEEEEE ILL GIVE BRAINLIEST!!

Answers

Answer: 6π

Step-by-step explanation: First find circumference. radius is 4 so 4x2=8. 8π is circumference. You need to find 3/4 of circumference os 3/4x8π=6π

If it’s right i’ll mark brainliest!!

Answers

Answer:

there is no solution

Step-by-step explanation:

What is meant by the order of operations?

Answers

Answer:

Step-by-step explanation: The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Which value of x makes the equation 1.25(4x − 10) = 7.5 true?
A. 3.5
B. -1
C. -0.5
D. 4
The awnser is x =4 or just 4
D=4

Answers

Answer:

x=4

Step-by-step explanation:

(7) The volume of an ice cream cone is
113.04 cm3. If the radius is 3 cm, find the
height of the cone.

Answers

Here is your answer

Can you tell me how to solve for X

Answers

Answer:

answer is D)10

Step-by-step explanation:

there's a square in the corner, and that tells you this angle is a right angle which is 90degrees

so 90-60=3x

30=3x

x=10

Answer:

A. 30

x=30

Step-by-step explanation:

That is a 90 degree angle. 90-60=30

You go to the store and notice the people standing in line. 7 adults and 4 children. If this ratio stays the same and there 55 people in the store, how many would be children?

Answers

Answer:

20 kids

Step-by-step explanation:

so that totals to 11 (parents and kids)

55/11=5

4x5=20

20 kids

The meterologist said the temperature was going to be 78 degrees
today. The thermomter reads 82 degrees. What is the percent error?

Answers

Answer:

5%

Step-by-step explanation:

hope this helps

I think I took the test. I'm not sure tho.

Find the volume of the cone-

Answers

Answer:

12.6ft³

Step-by-step explanation:

Hey There!

So the first thing we need to do is find the formula for volume of a cone

[tex]V=\pi r^{2} \frac{h}{3}[/tex]

r = radius

h = hypotenuse

Now all we have to do is plug in the hypotenuse and the radius

[tex]V=\pi 2^{2} \frac{3}{3}[/tex]

2²=4

[tex]\frac{3}{3} =1[/tex]

4xπ=12.5663706144

And now we just round to the nearest tenth

so we can conclude that the volume of the cone is 12.6ft³

I need help on both

Answers

The answer is c and d

The circumference of a circle is 147 feet.
Find the area of the circle, in terms of pi.

Answers

Answer:

Step-by-step explanation:

C = 147 ft.  The relevant formula is C = 2(pi)r, and here C = 147 ft = 2(pi)r.

The relevant area formula is A = (pi)r^2.  If we solve the above formula for r we get

         147 ft

  r = ------------    and so  r^2 (needed to calculate the area) is

           2pi

          147^2 ft^2

r^2 = ------------------

                4(pi)

                                      147^2 ft^2

and so the area is  A = ---------------- = 7203/pi

                                           3 pi

                                                                    C                           C^2

Alternative method:  C = 2pi*r so r = -------------- and r^2 = -------------

                                                                 2 pi                           4pi^2

                                                                               C^2             C^2

then the area of the circle is A = pi(r^2) or pi*-------------- = ---------------

                                                                             4pi^2               4pi

                                                                        (147 ft)^2

and in this case the area of the circle is A = --------------

                                                                              4 pi

or A = 1720 ft^2

A quartic polynomial P(x) has rational coefficients. If 2 − i and-√5 are roots of P(x) = 0, what are the other 2 roots?

Answers

Answer:

2 + i and + √5

Step-by-step explanation:

Since P(x) is a quartic equation, it has 4 roots.

Since 2 - i and -√5 are two of its roots, then its conjugate pairs of 2 + i and + √5 are its other two roots.

So, its other two roots are 2 + i and + √5

2) Dividing quantities in a given ratio
a) divide MVR 90 into two parts in the ratio 2:1.​

Answers

Answer:

180:90

Step-by-step explanation:

Help please thank you

Answers

Answer:

If you put it in your calculator and round it you should get the right answer.

Step-by-step explanation:

Drag the numbers to order them from greatest to least, with the greatest at the top.
(Any answer's that dont make sense or dont relate to the question will be reported and deleted)
.[tex]\sqrt{17}[/tex]
.[tex]\sqrt{12}[/tex]
.4.923935
.5.03709

Answers

Step-by-step explanation:

5.03709

4.923935

√17

√12

Area!
I can't seem to figure it out I need some help.

Answers

Answer:

118.73

Step-by-step explanation:

Answer:

118.74 ft²

Step-by-step explanation:

First, you're going to get the are of the following shapes, one by one.

Area of A Circle = πr²

Area of a Rectangle = bh

Area of a Square = s²

Step 1: Let's find the area for the Circle.

Diameter = 6

Radius = Diameter ÷ 2

6 ÷ 2 = 3

The Radius is 3.

A = (3.14)(3)²

Simplify:

(3.14)(9) = 28.26 ft²

Step 2: Find the Area of the Rectangle.

A = bh

11 × 2 = 22

Area of Rectangle = 22 ft²

Step 3: Find the Area of the Square

A = s²

13² = 13 × 13 = 169 ft²

Step 4: Subtract the Aea of the Circle and Rectangle form the Are of the Square.

169 - 28.26 - 22 = 118.74 ft²

DEF is a triangle. GH and EF are straight lines. Find the measures of angles 1, 2, and 3

Answers

Answer:

1= 123°

2=123°

3= 57°

Step-by-step explanation:

. Solve for x
10 = 5(x + 8)

Answers

The answer is:
x= -6
____________

Answer:

x = -6

Step-by-step explanation:

10 = 5(x+8)

=> 5(x+8) = 10

=> 5x + 40 = 10

=> 5x = 10 - 40

=> 5x = -30

=> x = -30/5

=> x = -6

An artist sold 10 paintings. Her first two sold for $50 and $350. She sold three at a gallery show for $250, $400 and $1,200. She sold her oil paintings on line for $410, $400 and $375. Family members bought two, one for $200 and another for $280. What is the IQR of the selling price of her paintings?

Answers

Answer:

250-400

Step-by-step explanation:

Answer:

150

Step-by-step explanation:

There are 10 numbers representing the selling prices of paintings.

List the numbers in the ascending order:

50, 200, 250, 280, 350, 375, 400, 400, 410, 1200

Median of the lower half is:

50, 200, 250, 280, 350 ⇒ Q1 = 250

Median of the upper half is:

375, 400, 400, 410, 1200 ⇒ Q3 = 400

The IQR is the difference between the upper and lower medians:

IQR = Q3 - Q1 =         400 - 250 = 150

8 thuusond divided by what number equal to 8 tens

Answers

Answer:

divided by 100

Step-by-step explanation:

8,000 / 100 = 8 in the tens, or 80

What is the solution to this system of equations?
10
8
6
2
y = x +4
y = -0.5x + 7
-2
2
4
6
A. (3, 1)
B. (2,6)
C. (1,3)
O
D. (6,2)

Answers

Answer:

option B is correct

Step-by-step explanation:

Hope it helps you

Is (3, 3) a solution to the equation y
=
x?
yes
no

Answers

Answer:

yes

Step-by-step explanation:

For what value of x is the rational expression below equal to zero?
(x+5)(x - 1)
A. 4
ОО
B. 1
C. -5
d
D. -4
SUBMIT

Answers

Answer:

I can only guess that by x^2-2x-24 you mean the entire denominator.  In cases like this is is important to use parentheses to remove any doubts.  For example:

(x+8) / (x^2-2x-24).

This rational expression is undefined at any x for which the denominator, x^2-2x-24, is zero.  

x^2-2x-24 factors into (x+4)(x-6).  The roots are -4 and +6.  

Thus, the given expression is undefined at {-4,6} (set notation).

Step-by-step explanation:

Help!!!!!!!!!!!!!!!!

Answers

Answer: Exponential, and increases by 343 percent.

Step-by-step explanation: Always depends on the number being raised, let's call it B. If B is between 0 and 1, it's a decay, but if B is greater than 1, it is exponential. In this case, B is 7, therefore it's exponential.

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