In this question, AE is the length of half of one diagonal in the rectangle. DB is the length of the other diagonal. 2(4x-12) would be the total length of the other diagonal, AC. You can set 2(4x-12) equal to 7x-18 and solve for x.

2(4x-12)=7x-18

8x-24=7x-18

x-24=-18

x=6

6 0

3 years ago

Read 2 more answers

Solve the system of equations algebraically. 2x+y=5 3x−3y=3 (x,y)= (

makvit [3.9K]

substitution

2x+y=5

y = -2x+5 (1)

3x-3y=3 (2)

1 ⇒ 2

3x - 3(-2x+5) = 3

3x+6x-15=3

9x=18

x=2

y = -2(2)+5

y = 1

5 0

2 years ago

What is perimeter of the semi circle?

Nesterboy [21]

Answer:

54.22 mm

Step-by-step explanation:

Find the circumference of the circle and then divide it by 2.

We start with the formula for the circumference for the circle:

C = 2πr

To find r, divide 22 by 2:

22/2=11

Now find the cicumference:

C = 2πr = 2(3.14)(11) = 108.46 mm

NOW, to find the perimeter of the semicircle, divide the circumference by 2:

108.46/2 = 54.22 mm

7 0

3 years ago

(-11)-8+(-7)-(-14) Answer

goldenfox [79]

(-19) -7 +14= -26+ 14 = -12

8 0

3 years ago