What is the solution of √x+ 12 =
= x?
O x = -3
O x = 4
O x = -3 or x = 4
Ono solution
PLEASE HELP

Answers

Answer 1

Answer:

x₁ = 4

(x₂ = -3)

Step-by-step explanation:

√(x + 12) = x

x + 12 = x²

x² - x - 12 = 0

Δ = 49

x = (1 ±√Δ)/2

x₁ = 4

x₂ = -3

the right solution is 4 this can be seen by inserting the solutions found in the starting equation


Related Questions

Elizabeth, Frank, Gary, and Helen are getting in line to buy lunch in the cafeteria. How many different ways could they line up so that Helen is first in line?

Answers

Starting with alphabet order but backwards.
Helen, Gary, Frank, Elizabeth.

At the amusement park, Jack bought child and adult tickets costing $1.50
and $2.50, respectively. He bought a total of 9 tickets and paid $16.50.
How many of each kind of ticket did he buy?

Answers

Answer:

Explanation:
x=1.50 (child tickets)
y= 2.50 (adult tickets)

There’s a total of 9 tickets, therefore
possible options are:
1x+8y=16.50
2x+7y=16.50
3x+6y=16.50
4x+5y=16.50
5x+4y=16.50
6x+3y=16.50 …

I would then pick one and try it out and see if it works…

Let’s try 6x+3y=16.50
Substitute x= 1.50 and y=2.50 info the equation

6(1.50)+3(2.50)=16.50
9.0+7.5=16.50

Therefore, Jack bought 6 child tickets and 3 adult tickets. Hope this helps!

7. Which transformation of (x, y) is a dilation? (TEKS G.3.A)
F (3x, y)
G (-y, x)
H (3x, 3y)
J (x + 3, y + 3)

Answers

Answer:

H (3x,3y)

Step-by-step explanation:

Dilation is a transformation when figure is enlarged or reduced by scale factor. During dilation, every point of preimage is dilated by scale factor, so it means each coordinate of that point must be multiplied by scale factor.

Hence, H(3x,3y) can be the result of dilation with scale factor of 3.

The layout of a playground uses the scale 1:50. If the dimensions of the playground in the layout are given by 180 cm x 240 cm, what is the actual area of the playground in square meters?

Answers

The area of the playground of dimensions 18 and 240is 432 [tex]m^{2}[/tex].

Given  If the dimensions of the playground in the layout are given by 180 cm x 240 cm.

The area of rectangle is length *breadth.

The given playground is in the shape of rectangle because there are two sides given and both the sides are different. In a rectangle length of opposite side found to be equal and each side form an angle of 90 degree.

Area=length*breadth

=180*240

=43200 [tex]cm^{2}[/tex]

We have to convert in meters so we have to divide by 100.

Area=43200 [tex]cm^{2}[/tex]

=43200/100

=432 [tex]m^{2}[/tex]

Hence the area of playground having dimensions 180 cm and 240 cm is 432[tex]m^{2}[/tex].

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On babylonian tablet ybc 4652, a problem is given that translates to this equation: x x plus startfraction x over 7 endfraction plus startfraction 1 over 11 endfraction left-parenthesis x plus startfraction x over 7 endfraction right-parenthesis equals 60.(x ) = 60 what is the solution to the equation? x = 48.125 x = 52.5 x = 60.125 x = 77

Answers

The correct option is (A). The solution of the equation is x=48.125.

Given an equation [tex]x+\frac{x}{7}+\frac{1}{11}\left(x+\frac{x}{7}\right)=60[/tex].

A statement that uses the equal sign to show that two expressions have the same value is called an equation. The equation is represented as ax+by=c.

Firstly, we will apply the distributive property to the given equation a×(b+c)=ab+ac, we get

[tex]x+\frac{x}{7}+\frac{x}{11}+\frac{x}{77}=60[/tex]

Now, we will simplify the right-hand side equation by taking LCM, we get

[tex]\begin{aligned}\frac{77x+11x+7x+x}{77}&=60\\ \frac{96x}{77}&=60\end[/tex]

Further, we will multiply both sides with 77, we get

77×(96x/77)=77×60

96x=4620

Then, we will divide both sides with 96, we get

96x/96=4620/96

x=48.125

Hence, the solution of the given equation [tex]x+\frac{x}{7}+\frac{x}{11}+\frac{x}{77}=60[/tex] is x=48.125.

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Answer:

The correct option is (A). The solution of the equation is x=48.125.

Given an equation .

A statement that uses the equal sign to show that two expressions have the same value is called an equation. The equation is represented as ax+by=c.

Firstly, we will apply the distributive property to the given equation a×(b+c)=ab+ac, we get

Now, we will simplify the right-hand side equation by taking LCM, we get

Further, we will multiply both sides with 77, we get

77×(96x/77)=77×60

96x=4620

Then, we will divide both sides with 96, we get

96x/96=4620/96

x=48.125

Hence, the solution of the given equation is x=48.125.

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Step-by-step explanation:

The oven temperature was at 325325325 degrees because my mom just finished baking a pie. i increased the temperature 757575 degrees so i could bake a pizza. after the pizza was cooked, i turned off the oven. the oven cooled to the room temperature of 686868 degrees.

Answers

The amount of the temperature decrease will be 332 °C.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

The oven temperature was at 325 degrees because my mom just finished baking a pie.

I increased the temperature, 75 degrees, so I could bake a pizza.

Then the temperature will be

⇒ 325 °C + 75 °C

⇒ 400 °C

After the pizza was cooked, I turned off the oven.

The oven cooled to the room temperature of 68 degrees.

Then the amount of the temperature decrease will be

⇒ 400 °C – 68 °C

⇒ 332 °C

The remaining question is given below.

How much did the temperature decrease?

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Dr. Benton just got his PhD, and he wants to print copies of his thesis in hardcover book format. He could use Middletown Printing, paying a setup fee of $39 and $3 for every book printed. Alternately, he could go through Oxford University, paying an up-front fee of $35 and $5 per book. It turns out that, given the number of books Dr. Benton wants to print, the two options cost the same amount. How many books is that? What is the amount?​

Answers

It could be 2 books, because 35+(5x2)= 45, and 39+(3x2)= 45.

How does the image triangle compare to the pre-image triangle?

Answers

A triangle undergoes a sequence of transformations.

First, the triangle is dilated by a scale factor of 1/3 about the origin. Then the triangle is reflected over the x-axis. Finally, the triangle is translated left 3 units and up 2 units.

The figure below shows one of the steps used in inscribing a square in a circle.

Answers

Answer:

Step-by-step explanation:

La ecuación h(x) =23 es lineal?

Answers

Si! H(x)=23 es lineal

GEOMETRY)

In the accompanying diagram of circle O, the m angle AOB=36^o. What is the m angle ACB ?

Answers…

A. 9^o
B. 36^o
C. 72^o
D. 18^o

(Picture is below) Thank you!

Answers

Answer:

SOLUTION :-

There is theorem/proof that tells that in these types of figure the other angle is double of the previous one

Means , the required angle will be ( 36 x 2 ) i.e. 72°.

________________________________

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Please help. I am so confused.

Answers

The fourth proportional is found by applying the formula

The product of extremes = The product of means.

The fourth proportional is equal to bc/a and st/r

Let the fourth proportional be x then this can be written as

a:b::c:x

Applying the formula of product of extremes

ax= bc

or

x= bc/a

The fourth proportional can be obtained by multiplying the variables bc and dividing by a

Similarly

Let the fourth proportional be y then this can be written as

r:s::t:y

Applying the formula of product of extremes

ry= st

or

y= st/r

The fourth proportional can be obtained by multiplying the variables st and dividing by r

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Using desmos
A. Locate, plot, and label on your graph where the pH value is 0.1
B. Locate, plot, and label on your graph where the pH value is 1.

Answers

The attached graph represents the location of the pH values 0 and 1

How to plot the points?

The given parameters are:

pH value 0 = (1, 0)

pH value 1 = (0.1, 1)

This means that we plot a point at the coordinate (1, 0) and another point at the coordinate (0.1, 1).

See attachment for the graph

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Complete question

The pH value is 0 at (1, 0) and 1 at (0.1, 1).

Using desmos

A. Locate, plot, and label on your graph where the pH value is 0.1

B. Locate, plot, and label on your graph where the pH value is 1.

please help me I'm in a rush

Answers

Answer:

78 m²

Step-by-step explanation:

V = bh

V = 13 m × 6 m

V = 78 m²

Which of the following is equivalent to
60 1/2

Answers

Answer:

30 or 120 /4

Step-by-step explanation:

a^p/q here p denotes power raised and q denotes inverse power or root. So, 60^1/2 denotes square root of 60 raised to power 1.


A rectangular yard measures 8m x 6m. What happens to the area if each dimension is doubled?​

Answers

Answer: 192

Step-by-step explanation:

2×8=16

2×6=12

17×12=192

So, the answer is 192.

Answer: the area would quadruple.
Step-by-step:
8x2=16
6x2=12
16x12=192
192 divided by 4 is 48
6x8 (the original area) is 48

the sum of a number and 10

Answers

Answer:

x+10

Step-by-step explanation:

x is any number and sum means addition, so x(number) +(sum) 10(10)

70 more points ez ez ez

Answers

[tex]y = 3x + 6 \\ switch \: y \: and \: x[/tex]

[tex]x = 3y + 6 \\ solve \: for \: y \\ x - 6 = 3y \\ y = \frac{x - 6}{3} [/tex]

A is the answer

Answer:

free tokens or something  

Step-by-step explanaon

um i do not know so um bye?

A square-based pyramid has a base of area 16 cm² and a volume of 16 cm³. Calculate:

a. The perpendicular height of the pyramid.

b. The height and area of the base of a similar pyramid with a volume of 1024 cm³.

Answers

Answer:

3

Step-by-step explanation:

V=⅓b²h

16=⅓*16*h

16=16h/3

h=3cm

Answer to (a) = 3cm
Answer to (b) = height is 12cm, area of base is 16 cm2

Formula for question a
Height = (3)V/a^2
We know v=16, we know a is 4
Height = (3) 16/16
Height = (3)

Formula for question b
If it’s similar, we will first find the ratio of V
We know one pyramid V=16, the other is V=1024
16 to 1024 = 64 cm3, take cube root of that for a ratio of 4
Multiply your known measurements x 4
So height is 3 x 4 = 12
Base edge is 4 x 4 =16
Volume is known at 1024cm3

Domanin and range...

Answers

Domain:- ∞ < x < ∞

Range:y≤9

Susan saw birds and mice eating seeds on the ground. She counted 14 heads. 40 legs in total. how many birds and mice are on the ground

Answers

Answer:

Birds = 8

Mice = 6

Step-by-step explanation:

Conditions

Let the birds = x

Let the mice = y

Equations

x + y = 14

2x + 4y = 40

Solution

Using the top equation solve for x

x = 14 - y

Use this result to substitue for x

2(14 - y) + 4y = 40                      

Remove the brackets

28 - 2y + 4y = 40

Combine

28 + 2y = 40

Subtract 28 from both sides

28 - 28 + 2y = 40 - 28

2y = 12

Divide by 2 on both sides

2y/2 = 12/2

y = 6

Solve for x

x + y = 14

x + 6 = 14

Subtract 6 from both sides

x + 6 - 6 = 14 - 6

x = 8

Answer:

7 mice and 7 birds

Step-by-step explanation:

14 heads would mean there are 14 animals in total, as each animal has one head.

Birds have two legs, and mice have four.

2+4=6

40/6=6.67 (recurring)

6.67*2=13.3 (recurring)

6.67*4=26.67 (recurring)

Animal legs can't be in decimal numbers, so we can round the numbers.

13.3 becomes 13, 26.67 becomes 27.

13+27=40

Now we can see that there are 13 bird legs and 27 mice legs.

Divide the bird legs by 2 to get 6.5

Divide the mice legs by 4 to get 6.75

Again, we can't have a decimal of an animal, so we can round.

6.5 becomes 7, and 6.75 also becomes 7.

Therefore, there is 7 of each type of animal.

What are the solutions of this quadratic equation?
x^2 = 16x - 65

substitute the values of a and b to complete the solutions.
x = a + bi
x = a - bi

answers:
x = 8 + i
x = 8 - i

i hope this helps.

Answers

The solutions for the given quadratic equation are:

[tex]x = 8 \pm i[/tex]

How to find the solutions of the quadratic equation?

Here we have the quadratic equation:

[tex]x^2 = 16x - 65[/tex]

We can rewrite it as:

[tex]x^2 - 16x + 65 = 0[/tex]

Using Bhaskara's formulas, we get:

[tex]x = \frac{-(-16) \pm \sqrt{(-16)^2 - 4*65} }{2} \\\\x = \frac{16 \pm \sqrt{(-4)} }{2}[/tex]

Now, remember that:

[tex]\sqrt{-1} = i[/tex]

Then we can rewrite:

[tex]x = \frac{16 \pm \sqrt{-1} *\sqrt{4} }{2}\\\\x = 8 \pm i[/tex]

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Plug x back in. What is the measurement of (8x - 20) degrees

Answers

The complement of y is 110 - 8x degrees.

What are complementary angles?

Complementary angles are angles that add up to 90 degrees.

Therefore,

y = 8x - 20

The complement of y can be found as follows;

complement of y = 90 - (8x - 20)

complement of y = 90 - 8x + 20

complement of y = 110 - 8x

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Find the missing side lengths.
AB=
BC=

Answers

Answer:

Step-by-step explanation:

There are four people in the Hayden family.each person always eats 3/4 of a cheese pizza. How whole many pizzas should they order? Solve and draw a picture to match this problem

Answers

you should order 3 pizzas. draw a picture of three pizzas 3/4 shaded and leave the 1/4 of the pizzas not

The family consumes 3 whole pizzas in total. They should order 3 whole pizzas to have enough for everyone.

How did we arrive at the value?

To find out how many whole pizzas the Hayden family should order, we can calculate the total number of pizzas they need.

Since each person always eats 3/4 of a pizza, the total amount they eat can be calculated as follows:

3/4 + 3/4 + 3/4 + 3/4 = 4 × (3/4) = 3

So, the family consumes 3 whole pizzas in total. Therefore, they should order 3 whole pizzas to have enough for everyone.

As for the picture, imagine a circle representing a whole pizza. Divide it into four equal parts to represent each person's portion (3/4). Repeat this division three times to represent the three pizzas needed.

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20% of the cross-country runners in
a school team weigh between 60 kg
and 70 kg. If 4% of the school of 1125 students are in the cross-country team, how many students in the team weigh between 60kg and 70kg ?

Answers

Answer:

9 students

Step-by-step explanation:

First find the amount of cross-country team students, 4% * 1125 = 45

Then 20% * 45 = 9, so 9 students in the team weigh between 60 and 70 kilos.

Which classification best represents a triangle with side lengths 6 cm, 10 cm, and 12 cm?
acute, because 62 + 102 < 122
acute, because 6 + 10 > 12
obtuse, because 62 + 102 < 122
obtuse, because 6 + 10 > 12

Answers

Answer:

obtuse because 6^2+10^2<10^2

Step-by-step explanation:

The given triangle whoe sides are 6cm, 10cm, and 12cm is an obtuse triangle and it can be determine by using pythagorian theorem, i.e. 6^2 + 10^2 < 12^2.

What is Pythagorean theorem?

Pythagorean theorem, the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)—or, in familiar algebraic notation, a^2 + b^2 = c^2.

here, we have,

Given :

The side lengths of a triangle are: 6cm, 10cm, and 12cm.

Pythagorian theorem can be used to find out that the triangles are acute or obtuse. According to pythagorian theorem, the sum of square of shorter side is equal to the square of the third side of the right angle triangle.

According to pythagorian theorem:.

That is, H^2 = P^2 + B^2.

There are some rules to find the triangle is obtuse or acute:

If  H^2 > P^2 + B^2, than the triangle is obtuse.

If H^2 < P^2 + B^2, than the triangle is acute.

Now, applying pythagorian theorem:

we get,

6^2 + 10^2 = 12^2

136 = 144

Here, it is clearly observe that 136 <  144, i.e. 6^2 + 10^2 < 12^2 therefore, the triangle is obtuse.

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2. Simplify the expression. (x3)(x7)²
1
x18
x14
x126

Answers

Step-by-step explanation:

[tex] = ( {x}^{3} ) { ({x}^{7} )}^{2} [/tex]

[tex] = {x}^{3} \times {x}^{7 \times 2} [/tex]

[tex] = {x}^{3} \times {x}^{14} [/tex]

[tex] = {x}^{3 + 14} [/tex]

[tex] = {x}^{17} [/tex]

The formula used to convert degrees Celsius to degrees Fahrenheit is
F=C+32.
Convert 59°F to degrees Celsius. Solve the formula for C, and then use it to
convert the temperature.
Which is the correct formula and conversion?
OA. C=F-32; conversion: 59°F = 135°C
OB. C= (F-32); conversion: 59°F = 15°C
OC. C= (F-32); conversion: 59°F = 106°C
OD. C=F-32; conversion: 59°F = 15°C

Answers

The formula to convert degrees Fahrenheit to Celsius is:

[tex]\bf{^{\circ}C=\dfrac{5}{9}(^{\circ}F-32) \ \ \to \ \ \ Formula }[/tex]

Convert 59°F to degrees Celsius.

Add the number 59 in the formula, and solve.

        [tex]\bf{=\dfrac{5}{9}(59-32) }[/tex]

Subtract 32 from 59.

         [tex]\bf{=\dfrac{5}{9}(27) }[/tex]

Multiply 5 x 9 = 135, then divide 135/9 = 15.

         [tex]\bf{=15 \ ^{\circ}C}[/tex]

Therefore 59 °F = 15 °C. The correct option is "D".

{ Pisces04 }

(I added the picture needed)

1.Create a sample space and find the product of each combination. What is the probability that a person wins the game? Express your answer as a fraction in lowest terms and as a percent rounded to the nearest tenth.
(answer to this one is 9/28 and 32.1%)

2. You realize a short time into the carnival that you don’t have enough prizes to last the entire event. You call your teacher, and she suggests that you change the winning number so that a participant will win only 25% of the time. What number will that be? Support your answer.

3. Participants achieving a winning score of 36 or higher in four consecutive attempts will receive a large prize! What is the probability of this occurring?


4. After changing the game rules, participants and the crowd are disappointed when the first five games yield scores of 12, 18, 30, 28, and 24. What statement can you recommend the teacher posts to reassure everyone that the game is fair?

Answers

Going by the rules of the game to pick a random card and then multiply it by a roll of a number cube, we can find that:

The probability a person wins a game is 3/8 or 37.5%.For a participant to win 25% of the time, they needs to get 32 or higher. The probability of a score of 36 or higher in 4 consecutive attempts is 1/1,1296.Teacher should tell people that just as the lower numbers could be picked, the products that are 32 or higher can be picked as well.

What sample space represents the data?

If the die is rolled, it will land on a number between 1 and 6 while there are only four cards that can be picked.

The sample space is:

                  Dice             Card            Product        

                      1                 5                         5

                      1                 6                         6

                      1                 7                         7

                      1                 8                         8

                      2                 5                         10

                      2                 6                         12

                      2                 7                         14

                      2                 8                         16  

                      3                 5                         15

                      3                 6                         18

                      3                 7                         21

                      3                 8                         24

                      4                 5                         20

                      4                 6                         24

                      4                 7                         28

                      4                 8                         32

                      5                 5                         25

                      5                 6                         30

                      5                  7                         35

                      5                  8                         40

                      6                 5                         30                        

                      6                 6                         36

                      6                 7                         42

                      6                 8                         48

Based on the products, we can come up with the following frequency table:

                                 Frequency table

                          Product                     Frequency

                              5                                      1

                              6                                      1

                              7                                      1

                              8                                      1

                              10                                      1

                              12                                      1

                              14                                      1

                              16                                      1

                              15                                      1

                              18                                      1

                              21                                      1

                              24                                      2

                              20                                      1

                              28                                      1

                              30                                      2

                              32                                      1

                              25                                      1

                              35                                      1

                              40                                      1

                              36                                      1

                              42                                      1

                              48                                      1

                              Total                                24

The frequency table shows that to get 28 or more, a person will have a relative frequency of:

= 1 + 2 + 1 + 1 + 1 + 1 + 1 + 1

= 9

Probability is:

= 9 / 24

= 3/8

= 37.5%

How can a person win only 25% of the time?

The number of products required to win 25% of the time is:

= 25% x 24

= 6

To find the winning number, count down from the highest product 6 times to get 32.

What is the probability that a player wins a large prize?

The probability of getting 36 or higher is:

= ∑(Probabability of picking 36 and above numbers)

= 1 / 24 + 1/24 + 1/24 + 1/24

= 1 / 6

The probability of repeating this 4 consecutive times is:

= 1 / 6 x 1 / 6 x 1/ 6 x 1 / 6

= 1 / 1,296

= 0.0007716

Find out more on probability at https://brainly.com/question/23461431.

#SPJ1

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