Answer:
B
Please mark brainliest if correct
Step-by-step explanation:
We can rule out A and D because of the area.
The area of a cube with side length 1/4 is 1/64, times 840, is 13 1/8
The area of a cube with side length 1/2 is 1/8, times 420, is 52 1/2
Answer:
See below.
Step-by-step explanation:
You don't provide the original side length, but since the scale factor is greater than 1, all correct answers are lengths that are greater than the original side length.
Answer: choose any two numbers that are greater than the original length.
Answer:
The lines are perpendicular
Step-by-step explanation:
we know that
If two lines are parallel, then their slopes are equal
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)
we have
----> equation A
isolate the variable y
Divide by 7 both sides

The slope of the line A is 
----> equation B
isolate the variable y
Divide by 3 both sides

The slope of the line B is 
Compare the slope of both lines


so
----> the lines are not parallel
Find the product of the slopes
----> the lines are perpendicular
Answer:
It is correct
Step-by-step explanation:
Has two solutions x = a and x = -a because both numbers are at the distance a from 0. You begin by making it into two separate equations and then solving them separately. An absolute value equation has no solution if the absolute value expression equals a negative number since an absolute value can never be negative.
Answer:
C. Multiplication property of equality