Please explain this is math homework

Answer:

A² + B² = ( A+B )² – 2AB

or = ( A– B )² + 2AB

I hope I helped you^_^

En el circo, para alimentar 3 tigres se necesitan 40 kg de carne por día, entonces para alimentar 6, 9 y 12 tigres se necesitan 80, 120 y 160 kg de carne por día, respectivamente.                      

Para calcular cuántos kg de carne se necesitan para alimentar 6, 9 y 12 tigres, podemos realizar la siguiente conversión (aplicación de regla de 3):

[tex] x = \frac{40 kg}{3 \: tigres}*6\: tigres = 80 kg [/tex]

[tex] x = \frac{40 kg}{3 \: tigres}*9\: tigres = 120 kg [/tex]

[tex] x = \frac{40 kg}{3 \: tigres}*12\: tigres = 160 kg [/tex]

Por lo tanto, se necesitan 80, 120 y 160 kg de carne para alimentar 6, 9 y 12 tigres, respectivamente.        

Para encontrar mas sobre la resolución de problemas con regla de 3 visita este link: https://brainly.com/question/9898461?referrer=searchResults

Espero que te sea de utilidad!    

Answer:

Choice 3. -4x-3<13

Step-by-step explanation:

First, you will use process of elimination and cross out any obvious wrong answers. You can see that the symbol would not be flipped yet so the "<" would be pointing  to less than. That eliminates choice 1 and 4. Now, You can observe the 3rd step and see that -4x<16, to get that, you would need a "-4x" in the equation. Number 2 is 2x so that can't be right. Therefore, the answer is choice 3. This simple process of elimination and looking for clues will help you greatly in multiple choice problems instead of solving it the hard way.

Answer: C

Step-by-step explanation:

[tex]-x-3 < 13+3x\\\\\Longleftrightarrow\ -x-3x-3 < 13\\\\this \ step \ is \ missing\ -4x-3 < 13\\\\\Longleftrightarrow\ -4x < 13 + 3\\\\\Longleftrightarrow\ -4x < 16\\\\\Longleftrightarrow\ 4x > -16\\\\\Longleftrightarrow\ x > -4\\\\Answer\ C[/tex]

Answer:

3 chickens need 1 day to lay 3 eggs, because in 1.5 days 1 chicken lays 1.5 eggs

-> 1 day 1 chicken lays 1 egg so 3 chickens need 1 day to lay 3 eggs

study well !

Answer: 1 day

Explanation: Since one hen and a half plus one hen and a half is equal to 3 hens. And also one egg and a half plus one egg and a half equal to 3 eggs therefore also the time needed for three hens will be 2 times the time needed by one hen and a half

Answer:

Step-by-step explanation:

Width = w

triple the width = 3*w = 3w

Length = 7 yards longer than triple the width = 3w + 7

Perimeter = 438 yards

2*(length +width) = 438

2*(3w+ 7 + w) = 438       {Combine like terms}

2 * (4w + 7)     = 438

     2*4w +2*7 = 438       {Use distributive property}

         8w + 14 = 438          {Subtract 14 from both side}

                  8w = 438 - 14

                  8w = 424          {Divide both sides by 8}

                    w = 424/8

                     w = 53 yards

Length = 3*53 +7 = 159 + 7 = 166 yards

Width = 53 yards

Length = 166 yards

Answer:

C. 600

Step-by-step explanation:

There are 25 different choices for the first scoop.

There are 24 scoops for the second scoop

25*24

600 different ways

Answer:

40,960

Step-by-step explanation:

To find the multiplier, set up an equation like this:

[tex]5x=-10[/tex]

The above equation will allow us to find what number, when multiplied with 5 will result in -10. If we divide both sides of the equation by 5, we'll find that the number, x, is -2:

[tex]x=-2[/tex]

We need to find the 14th term. To do this, simply multiply the lattermost number in the sequence by our multiplier, -2.

[tex]20*(-2)=40[/tex]

Since 5 is the first term in the sequence, -10 is the second term in the sequence, and 20 is the third term in the sequence, 40 is the fourth term. Now we just need to find the next ten so that we can find the 14th term. To do that, repeat the process of multiplying the lattermost number by -2 ten more times:

[tex]40*-2=-80\\-80*-2=160\\160*-2=-320\\-320*-2=640\\640*-2=-1280\\-1280*-2=2560\\2560*-2=-5120\\-5120*-2=10240\\10240*-2=-20480\\-20480*-2=40960[/tex]

Therefore, the 14th term is 40,960.

Answer:

-40,960

Step-by-step explanation:

you have to add the negative because there partners in crime

Answer:

9x^2 sqrt2x ahhhh

Answer: A solution that results in a false statement when substituted back into the original equation.

Step-by-step explanation: An extraneous solution is one that arises in a solution of equations, but which on closer inspection is not a solution to the original equation. Therefore, they imply an error in the development of the solution of the equation, so they cannot be taken as a valid solution since, when replacing the result with the missing variable, the equation does not obtain the desired result.

Answer:

[tex]2 + p = \frac{4}{5} + \frac{3}{5} p \\ p \: terms \: togather \\ p - \frac{3}{5} p = \frac{4}{5} - 2 \\ \frac{5p - 3p}{5} = \frac{10 - 4}{5} \\ \frac{2p}{5} = \frac{3}{5} \\ 2p = 3 \\ p = \frac{3}{2} \\ thank \: you[/tex]

The value of p in the given equation 2 + p =4/5 + 3/5p is -5/2.

Two or more expressions with an Equal sign is called as Equation.

The given equation is 2 + p =4/5 + 3/5p

Two plus p equal to four by five plus three by five times of p.

p is the variable in the given equation.

2 + p =4/5 + 3/5p

Take the variable terms on one side.

2-4/5 =3/5p-p

6/5= -2p/5

5=-2P

P=-5/2

Hence, the value of p in the given equation 2 + p =4/5 + 3/5p is -5/2.

To learn more on Equation:

https://brainly.com/question/10413253

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The above question is based on Algebraic expressions. An algebraic expression is a mathematical expression which contains unknown variables represented by letters.

Our question above states that:

Cory earns $22 for every lawn he mows and $6 for every hedge he trims.

The Algebraic expression used to express the above statement is given to us in the question as :

22x + 6y

Where:

x = Number of lawns that he trims and

y = Number of hedges that he trims

Part A: Identify the coefficients and variables in the expression.

22x + 6y

i) The coefficients in this expression = 22 and 6. This is because a coefficient is always a number (Integer) that is multiplied by the unknown variable

ii) The variables in the above question = x and y. This is because variables are always represented by letters (alphabets)

Part B: How many terms are in the expression, what are they, and how do you know?

Terms are values which could be constants, variables or coefficients that make up an Algebraic expression.

There are two terms in the Algebraic expression = 22x + 6y and they are : 22x and 6y

Part 2: Which terms in the expression shows the total earned from mowing lawns?

Cory earns $22 for every lawn he mows

x = Number of lawns that he trims

Hence, the expression that shows the total earned from mowing lawns = $22 × x

= 22x

To learn more about similar questions like this, you can click this link: https://brainly.com/question/18543172

Here we have a problem with linear equations, we will find that:

A)The Coefficients are: 22 and 6

The variables are: x and y

B) The number of terms in the expression are two: 22x and 6y

2)Total earned for lawn mowing = 22x

Given that the expression 22x + 6y is used to keep track of Cory's earnings:

The Coefficient is a constant value in an equation which may be used to multiply a variable. In the scenario given, the coefficients are Cory's earning per lawn he mows and hedge he trims. The coefficient values are 22 and 6.

The variable in an expression represents values which can change or vary, in the scenario given, the number of lawns mowed or hedge trimmed may vary. Hence, the number of lawns and hedges are the variables.

The number of terms in the expression is 2:

The earning for lawn mowing.

The earning for hedge trimming.

Part 2:

Total earned from mowing lawns:

(earning per lawn mowed × number of lawns mowed)

(22 × x) = 22x

If you want to learn more, you can read:

https://brainly.com/question/18543172

Answer:

its UD and DU and is a segment line

Answer:

Acute Angled Triangle.

Right-Angled Triangle.

Obtuse Angled Triangle

Step-by-step explanation:

a right angle would be 90° angle

obtuse would be over 90°

acute would be smaller than 90°

hope this helps!

Answer:

its d 85

Step-by-step explanation:

d and 80 are  alternate interior angles so they are equal

Answer:

Step-by-step explanation:

18 ∠CBJ ≅ ∠FHG    {AC // HD , BG is transversal. Corresponding angles are equal}

19) ∠FJH ≅ ∠ BJA   {Vertically opposite angles are equal}

20)  m∠EFD = 75°

m∠JAB = m∠ EFD { AC // HD , AE is transversal. Corresponding angles are equal}

m∠JAB = 75°

21) m∠GHF = 130

m∠ JBC =m∠ GHF    {Corresponding angles}

m∠JBC = 130

Answer:

Step-by-step explanation:

Answer:

0.30, 0.35, 0.40, 0.45

Step-by-step explanation:

0.25, 0.30, 0.35, 0.40, 0.45 0.50

Chow,...!

Answer:

[tex]\sqrt{x} 0.40002533205417530235503802533472[/tex]...

0.2746254385...

0.485374905752849566...

Step-by-step explanation:

These are all irrational numbers with a value of between 0.25 and 0.5

(e) it is the last one........

1.1.5550

2.1.5500

3.1.6000

Answer: n=-30

Step-by-step explanation:

With what we are given in the description, we can find the missing number.

[tex]8+\frac{n}{3} =-2[/tex]

We get this equation because 8 is adding the quotient of a number and 3. A quotient of a number and 3 is written as [tex]\frac{n}{3}[/tex] because n is dividing 3. When that is added to 8, we get -2. With this equation, we can solve for n.

[tex]8+\frac{n}{3} =-2[/tex]           [subtract both sides by 8]

[tex]\frac{n}{3} =-10[/tex]                [multiply both sides by 3]

[tex]n=-30[/tex]

Now, we know that n=-30.

Answer: 7/5

Step-by-step explanation:

Answer:

5/12

Step-by-step explanation:

So, 14 boys and 10 girls. 24 total kids.

14+10=24

10 girls means 10/24

simplified to 5/12

Answer:

11 ft

Step-by-step explanation: A square has side lengths that are equal in length. Given that a side length of a square is x, the area would be x^2 because x*x = x^2. Now we have to reverse for the problem. If the area is 121 then what is x. 121=x^2. So we have to square root 121, resulting in 11. So each side of the garden is 11 feet each.

Answer: 7,320.5

Step-by-step explanation:

121 squared

= 1212

= 121 x 121

= 14,641  (Area)1/2=s, where s = side.

So 14,641÷2= 7,320.5