Let us evaluate the equations one at a time.
1) 3x + 5 = -2
3x = -7
x = -7/3
This equation has unique solution.
2) 6(x - 11) = 15 - 4x
6x - 66 = 15 - 4x
10x = 81
x = 81/10
Ths equation has a unique solution
3) 12x + 9 = 8x + 1 + 4x
12x - 8x - 4x = 1 - 9
0x = -8
x = -8/0
This equation has no solution.
4) 2(x - 3) = 10x - 6 - 8x
2x - 6 = 10x - 6 - 8x
2x - 10x + 8x = -6 + 6
0x = 0
x = 0/0
Ths equation has no solution.
5) 5x + 6 = 5x - 4
5x - 5x = -4 - 6
0x = -10
x = -10/0
This equation has no solution.
Answer:
B. 14 +7√2
Step-by-step explanation:
The lengths of the two legs are the same: 7.
The length of the hypotenuse is √2 times the length of a leg, so is 7√2.
The perimeter is the sum of the lengths of the sides:
P = 7 + 7 + 7√2
P = 14 +7√2 . . . . . matches choice B
Answer:
Step-by-step explanation:
Given
A plane has traveled 26 miles on a course heading east of north
Taking the component of travel in North direction
The distance traveled in North is given by with the help of figure
Answer:
approximate volume = = 28336 cubic ft.
Step-by-step explanation:
Base area = 70840 sq. ft
Each story is about 10 ft.
approximate height = 12*10 = 120 '
Volume of pyramid
= Base * height /3
= 70840 * 120 / 3
= 28336 cubic ft.
Step-by-step explanation:
(10x-20)+(6x+8)= 180
16x -12=180
16x= 192
x= 12°