How many solutions exist for the given equation?

(x + 12) = 4x – 1

zero
one
two
infinitely many

Answer:

0.38 is a rational number because it can be expressed as fraction, and it isn't a repeating decimal.

Step-by-step explanation:

Repeating decimals aren't rational, and all rational numbers can be expressed as a fraction, or they aren't rational.

It's a rational number because it stops, the decimal is irrational if it continues forever without a pattern

Answer:

y=mx+b;  y=-3x+-4

Step-by-step explanation:

Substitute the slope, and the y-intercept in place of m and b

Answer: [tex] (y+4)=-3(x+1)[/tex]

Step-by-step explanation:

We know that the equation a line in point-slope form having slope m and passing through point (a,b) is given by :-

[tex](y-b)=m(x-a)[/tex]

Then , the equation a line in point-slope form having slope '-3' and passing through point (-1,-4) is given by :-

[tex](y-(-4))=-3(x-(-1))\\\\\Righarrow\ (y+4)=-3(x+1)[/tex]

Answer: its D $721.50

Answer:

Adam raked 340 liters

Step-by-step explanation:

Bob raked more leaves than Adam

5% more means take 100 % and add 5% = 105%

105% as a decimal is 1.05

Bob = 1.05 * Adam

We know Bob raked 357

357 = 1.05 Adam

Divide by 1.05

357/1.05 =1.05/1.05 Adam

340 = Adam

Answer:

50 dollars

Step-by-step explanation:

If you have a 20% discount,that means you pay for 80% of your items. So to find percent you make 80 percent 0.8 and then multiply by 62.50.

Answer:

$10

Step-by-step explanation:

You would multiply $62.50 by 20% or .2 to find the discount which is $10. If you need to find the sale price you would subtract $62.50 - $10 = $52.50.

Your discount amount is $10

Your Sale Price is $52.50

Answer:

1563.2

Step-by-step explanation:

The value of 3 in 156.32 is 0.3

The value of 3 in 1563.2 is 3

So 0.3 × 10 = 3

[tex]50-u>48\qquad\text{subtract 50 from both sides}\\\\-u>-2\qquad\text{change the signs}\\\\u<2[/tex]

Answer: the actual correct answer is D

Step-by-step explanation: i know the test answers because i am in flvs too

Final answer:

The position vector of vector u is (-10, -26). The magnitude of vector u is sqrt(776). The direction of vector u is 68.2 degrees.

Explanation:

The position vector of vector u can be found by subtracting the initial point from the terminal point. So, the position vector of u is (5-15, -4-22) = (-10, -26).

The magnitude of vector u can be found using the distance formula, which calculates the length of a vector. The formula is: magnitude = sqrt(x^2 + y^2), where x and y are the components of the vector. So, for vector u, the magnitude is: sqrt((-10)^2 + (-26)^2) = sqrt(100 + 676) = sqrt(776).

The direction of vector u can be found using trigonometry. The direction angle (theta) is given by tan(theta) = y/x. So, for vector u, the direction angle is: tan(theta) = (-26)/(-10) = 2.6. Converting to degrees, theta = arctan(2.6) = 68.2 degrees.

Answer:

Equation: 52+(52•.20) that is the first part for your answer you should get 10.4 or $10.40. Then you would take 52-10.4=41.60 then keeping that number in mind you do 41.60• .06 and get, rounded, 2.50. Then you would add 41.60+2.50 and get $44.10 as your answer . I hope I could help

Step-by-step explanation:

To find the percentage change, here is what we can do:

difference/original value x 100%

The difference: 149-49 = 100

The original value:149

The percentage change:

100/149 x 100%

=67.11409...%

Therefore the answer is 67.1%(corr. to three significant figures)

Hope it helps!

The percent of change from $49 to $149 is approximately 204.08%.

To calculate the percent of change from $49 to $149, we first find the difference in the two amounts.

The difference between $149 and $49 is $149 - $49 = $100.

Then, we divide the difference by the original amount (in this case, $49) to find the change in terms of the original amount.

This gives us $100 / $49 = 2.0408.

To convert this to a percentage, we multiply by 100. 2.0408 x 100

= 204.08%.

So the percent of change from $49 to $149 is approximately 204.08%.

Answer:

What you need???

Step-by-step explanation:

Answer:

I will be willing to help

Step-by-step explanation:

1. tell me what ur questions are

2. i will answer them

3. U use the answers for ur personal use

4. U thank me

5. Hope I can help

Answer:

x=3, y=6

Step-by-step explanation:

4x-y =6

3x+2y = 21

To use elimination we will multiply the first equation by 2

2(4x-y) =6*2

8x -2y =12

We will add this equation to the second equation to eliminate y

8x -2y =12

3x+2y = 21

-----------------

11x = 33

Divide each side by 11

11x/11 = 33/11

x =3

We still need to solve for y

3x+2y = 21

Substituting x=3

3*3+2y = 21

9+2y =21

Subtract 9 from each side

9-9+2y = 21-9

2y = 12

2y/2 = 12/2

y =6

Answer:

She will earn 1,920 points.  PLEASE GIVE BRAINLIEST!!!

Step-by-step explanation:

Level 1 : 15 points   x 2 = level 2

Level 2 : 30 points   x 2 = level 3

Level 3: 60 points    x2 = level 4

Level 4:  120 points   x2 = level 5

Level 5:  240 points   x2 = level 6

Level 6:  480 points  x2 = level 7

Level 7:  960 points  x2 = level 8

Level 8:  1,920 points

Answer:

18 logs.

Step-by-step explanation:

Since a stove burns 4 logs per 2 hours, then the stove will burn 2 logs in one hour. There fore in 9 hours the stove will burn 2*9 which is 18 logs.

4:2= 2 logs per hour

2*9=18 logs per 9 hours.

Answer:

16

Step-by-step explanation:

16 Because 2 divided by 8 equals 4 then 4x4 equal 16

Answer: 6

You replace f(x) or y with 0, and then solve for x

y = (x+4)(x-6)

(x+4)(x-6) = y

(x+4)(x-6) = 0

x+4 = 0 or x-6 = 0 .... zero product property

x = -4 or x = 6

The x intercepts are -4 and 6. In this case, only 6 is the positive x intercept.

side note: The term "root" is another way to say "x-intercept"

Answer:

y=1/3x+8

Step-by-step explanation:

you can use the formula y=mx+b

y=1/3x-1

10=1/3*6+b

10=2+b

b=8

y=1/3x+8

Answer:

x∧2+4x-16

Step-by-step explanation:

Answer:x^2+4x-12

Step-by-step explanation: I got it right

Answer:

[tex]m\angle M=90[/tex]

[tex]m\angle A=63[/tex]

[tex]m\angle N=27[/tex]

[tex]\Delta MAN[/tex] is a right triangle.

Step-by-step explanation:

Since we know that sum of all angles of triangles equals to 180 degrees.

To find the measure of our given angles we will have to find the value of x. The value of x can be found by equating the measure of all angles of our given triangle with 180.

[tex]4x-5+9x-9+10x+10=180[/tex]  

[tex]23x-14+10=180[/tex]  

[tex]23x-4=180[/tex]  

[tex]23x=180+4[/tex]

[tex]23x=184[/tex]  

[tex]x=\frac{184}{23}[/tex]

[tex]x=8[/tex]    

Now let us find measure of each angle by substituting value of x in given expressions.

[tex]m\angle M=10*x+10[/tex]

[tex]m\angle M=10*8+10[/tex]

[tex]m\angle M=80+10[/tex]

[tex]m\angle M=90[/tex]

Therefore, measure of angle M is 90 degrees.

[tex]m\angle A=9*x-9[/tex]

[tex]m\angle A=9*8-9[/tex]

[tex]m\angle A=72-9[/tex]

[tex]m\angle A=63[/tex]

Therefore, measure of angle A is 63 degrees.

[tex]m\angle N=4*x-5[/tex]

[tex]m\angle N=4*8-5[/tex]

[tex]m\angle N=32-5[/tex]

[tex]m\angle N=27[/tex]

Therefore, measure of angle N is 27 degrees.

From the measures of angles we can say that triangle MAN is a right triangle.

x - price of a video tape

y - price of a DVD

[tex]\left\{\begin{array}{ccc}2x+3y=134\\x+5y=179&|\text{subtract 5y from both sides}\end{array}\right\\\\\left\{\begin{array}{ccc}2x+3y=134\\x=179-5y&|\text{substitute to the first equation}\end{array}\right\\\\2(179-5y)+3y=134\qquad\text{use distributive property}\\\\(2)(179)+(2)(-5y)+3y=134\\\\358-10y+3y=134\qquad\text{subtract 358 from both sides}\\\\-7y=-224\qquad\text{divide both sides by (-7)}\\\\\boxed{y=32}\\\\\text{Put the value of y to the second equation}\\\\x=179-5(32)\\\\x=179-160\\\\\boxed{x=19}[/tex]

[tex]\( m\% \) of \( n \) is \( \frac{{m \times n}}{{p}}\% \) of \( p \).[/tex]

To find what percentage m% of n is of p, you would calculate:

[tex]\[ \text{Percentage} = \frac{{(m\% \text{ of } n)}}{p} \times 100\% \][/tex]

Substituting [tex]\( m\% \) of \( n \) with \( \frac{m}{100} \times n \), t[/tex]he formula becomes:

[tex]\[ \text{Percentage} = \frac{{\frac{m}{100} \times n}}{p} \times 100\% \][/tex]

Simplify the expression:

[tex]\[ \text{Percentage} = \frac{{m \times n}}{{100 \times p}} \times 100\% \][/tex]

[tex]\[ \text{Percentage} = \frac{{m \times n}}{{p}}\% \][/tex]

So,[tex]\( m\% \) of \( n \) is \( \frac{{m \times n}}{{p}}\% \) of \( p \).[/tex]

Answer:

38809/(4pi) cm^2

Step-by-step explanation:

So the circumference of the wheel is 197. So to find the radius, we divide by 2 pi. So now we have 197/(2pi) as the radius. Now we have to find the area, so it is 38809/(4pi)

The area of the solid wheel is  3090 cm².

The circumference of a circle is the distance around the circle which is 2πr.

The diameter of a circle is the largest chord that passes through the center of a circle it is 2r.

We know circumference is the distance around the circle which is 2πr.

Given, Each time a solid bicycle wheel turns, the bicycle travels 197cm.

Therefore,

2πr = 197.

r = 197/π×2.

r = 31.37 cm.

Therefore, The area of the solid wheel is,

πr².

= 3.14×(31.37)² cm².

= 3090 cm².

learn more about circles here :

https://brainly.com/question/29142813

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Answer:

It's B.

Step-by-step explanation:

(x, y) ---> (x + 3, y - 1)

Using point X as an example:

(x, y) ---> (x + 3, y - 1)

(0, 0) ---> (0 + 3, 0 -1)

(0, 0) ---> (3, -1)

The algebraic rule that describes the transformations is;

B) (x, y) → (x + 3, y − 1)

A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.

Given, A graph where we can see a Graph of a triangle XYZ that transforms to become x'y'z'.

Since the given graph is transformed not scaled.

Thus, the dimension will be the same and we can justify the means by just Calculating for one point.

For Point x:

Original coordinates os x = (0, 0)

coordinates of the x after transformation = (3, -1)

Thus,

horizontal displacement in X = +3

vertical displacement in X = -1

therefore, (x, y) → (x + 3, y − 1) is the algebraic rule that describes the transformation.

Learn more about coordinates here:

https://brainly.com/question/20282507

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Here is how you solve this problem with long-division. Hopefully it helps!

Answer:

A.

Carla is correct because 3.5 × 14 is less than 50.

Step-by-step explanation:

3.5m ≥ 50

To determine how many miles she needs to run, divide each side by 3.5

3.5m/3.5  3.5m ≥ 50 50/3.5

m ≥ 14.28571429

She must run more than 14 miles

Carla is correct because 14* 3.5 = 49.  That is less than the 50 she wants to raise.

Answer:

True

Hope it helps!!