Find the perimeter 18 34 36 40

Who knows the Babylonian method, and can help me! **see picture below**

PSYCHO15rus [73]

This is an iteration method for finding the square root.

The ? is also your first initial guess.

? = 10.5

The iteration formula for the square root is actually.

√n = (x + n/x)÷2.

Where x is your guess.

3 0

3 years ago

Which systems of equations intersect at point A in this graph?

abruzzese [7]

Answer:

The point of intersection of the system of equations is:

(x, y) = (-2, 1)

The correct system of equations intersect at point A in this graph will be:

$\begin{bmatrix}y=4x+9\\ y=-3x-5\end{bmatrix}$

Thus, the second option is correct.

Step-by-step explanation:

Given the point

A (-2, 1)

Let us check the system of equations to determine whether it intersect at point A in this graph.

Given the system of equations

$\begin{bmatrix}y=4x+9\\ y=-3x-5\end{bmatrix}$

Arrange equation variable for elimination

$\begin{bmatrix}y-4x=9\\ y+3x=-5\end{bmatrix}$

so

$y+3x=-5$

$-$

$\underline{y-4x=9}$

$7x=-14$

so the system of equations becomes

$\begin{bmatrix}y-4x=9\\ 7x=-14\end{bmatrix}$

Solve 7x = -14 for x

$7x=-14$

Divide both sides by 7

$\frac{7x}{7}=\frac{-14}{7}$

Simplify

$x = -2$

For y - 4x = 9 plug in x = 2

$y-4\left(-2\right)=9$

$y+4\cdot \:2=9$

$y+8=9$

Subtract 8 from both sides

$y+8-8=9-8$

Simplify

y = 1

Thus, the solution to the system of equations is:

(x, y) = (-2, 1)

From the attached graph, it is also clear that the system of equations intersects at point x = -2, and y = 1.

In other words, the point of intersection of the system of equations is:

(x, y) = (-2, 1)

Therefore, the correct system of equations intersect at point A in this graph will be:

$\begin{bmatrix}y=4x+9\\ y=-3x-5\end{bmatrix}$

Thus, the second option is correct.

3 0

3 years ago

In math is -34 less than -9

KatRina [158]

Yes it is, if you look on a number line, the -34 is farther left than the -9

4 0

3 years ago

Linear combination 3x+2y=-4 4x-y=13 Please give a step by step explanation

Ostrovityanka [42]

when you have a linear combination for example 3x + 2y equals negative 4 you adieu like terms and then multiply

8 0

3 years ago

Solve the system by substitution. y + 4 = x 10x + 2y = 16

Leno4ka [110]

Answer:

(2, -2)

Step-by-step explanation:

Given system:

y + 4 = x
10x + 2y = 16

Substitute x into the second equation:

10(y + 4) + 2y = 16
10y + 40 + 2y = 16
12y = -24
y = -2

Find x:

x = -2 + 4
x = 2

5 0

3 years ago

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