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astra-53 [7]
3 years ago
5

Will crown brainliest

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
8 0

Answer: B)

Step-by-step explanation:

If y = z then replace z for y in the second equation.

2 y + z = 12

2y + y = 12

3y = 12

y = 4

This also means z = 4.

Insert both of these values into the first equation:

x + y + z = 8 + 2sqr3

x + 4 + 4 = 8 + 2sqr3

x + 8 = 8 + 2sqr3

x = 2sqr3

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Un número multiplicado 2 veces que me de 4633
lions [1.4K]

Answer:

2316

Step-by-step explanation:

divide 4633 por 2 y la respuesta es 2316 (no abra el enlace, te lleva a un sitio inapropiado)

3 0
3 years ago
Find the perimeter and area of each figure.​
Sergio039 [100]

Answer:

  1. A = 2x; P = 4x+2. A = 4; P = 10.

  2. A = y² +2; P = 4y +2. A = 27; P = 22.

Step-by-step explanation:

1. The area is the sum of the marked areas of each of the tiles:

  A = x + x

  A = 2x

__

The perimeter is the sum of the outside edge dimensions of the tiles. Working clockwise from the upper left corner, the sum of exposed edge lengths is ...

  P = 1 + (x-1) + x + 1 + (x+1) + x

  P = 4x +2

__

When x=2, these values become ...

  A = 2·2 = 4 . . . . square units

  P = 4·2+2 = 10 . . . . units

_____

2. Again, the area is the sum of the marked areas:

  A = y² + 1 + 1

  A = y² +2

__

The edge dimension of the square y² tile is presumed to be y, so the perimeter (starting from upper left) is ...

  P = y +(y-2) +1 +2 +(y+1) +y

  P = 4y +2

__

When y=5, these values become ...

  A = 5² +2 = 27 . . . . square units

  P = 4·5 +2 = 22 . . . . units

4 0
3 years ago
A diagnal is drawn on a square. How many triangles are formed ? What is the sum of the measures of the angles of a triangle? wha
Alik [6]
  • 2 triangles are formed.
  • The sum of the measures of the angles of a triangle is 180 degrees.
  • The sum of the measures of the angles of a square is 360 degrees.

8 0
2 years ago
Given f(x) = x + 9 and g(x) = x2 find (gºf)(x).
marissa [1.9K]

Answer:

g(f(x)) = (x + 9)^2 or x^2 + 18x + 81

Step-by-step explanation:

(gºf)(x) is the "c .... " of two functions f(x) and g(x):  f(x) is the input to g(x).

We start with g(x):  g(x) = x^2.  We replace the first x with f(x) and the second x with x + 9:

g(f(x)) = (x + 9)^2 or x^2 + 18x + 81

8 0
3 years ago
First using point slope form, write the equation of the line in slope-intercept form
faltersainse [42]

Answer:

y = \frac{2}{3} x - 8

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - \frac{3}{2} x - 1 ← is in slope- intercept form

with slope m = - \frac{3}{2}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-\frac{3}{2} } = \frac{2}{3}

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = \frac{2}{3} and (a, b) = (9, - 2), thus

y - (- 2) = \frac{2}{3}(x - 9), that is

y + 2 = \frac{2}{3}(x - 9) ← in point- slope form

Distribute right side and rearrange

y + 2 = \frac{2}{3} x - 6 ( subtract 2 from both sides )

y = \frac{2}{3} x - 8 ← in slope- intercept form

3 0
3 years ago
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