Answer:
x is greater or equal to 7
Step-by-step explanation:
we will check each options
option-A:
For solving any equations , we always isolate variables on anyone side
For exp: x+7=1
so, this is TRUE
option-B:
For solving system of equations
For exp:
x-y=1
x+y=3
If we use addition , we could easily solve for x and y
so, this is TRUE
option-C:
We always solve problems using conventional method
we do not guess
so, this is FALSE
option-D:
We often reverse order of operation
For exp:
(x-2)^2-3=0
so, this is TRUE
option-E:
For linear equations , we always get one solution , infinite solutions or no solutions
so, this is FALSE
Answer:
no
Step-by-step explanation:
18 is not a multiple of 12
and 12 is not a multiple of 8
Answer:
D
Step-by-step explanation:
The answer is point D(-2,1).
1. If the point D was moved down 2 units, then its coordinates became (-2,-1).
2. If point (-2,-1) was reflected over the x-axis, then its coordinates became (-2,1).
3. If the point (-2,1) was moved 4 units to the right, then its coordinates became (2,1).
4. If point (2,1) was reflected over y-axis, its coordinates became (-2,1).
1 mile = 5280 feet.
Convert the dimensions to feet:
10 miles = 5280 x 10 = 52,800 feet
30 miles = 5280 x 30 = 158,400 feet
Multiply together to get the area:
52,800 x 158,400 = 8,363,520,000 square feet.
1 inch = 1/12 of a foot.
Multiply the area by 1/12 for the volume of rain:
8,363,520,000 x 1/12 = 696,960,000 cubic feet.
