Hey, there batgirl177! :)
The formula for the area of a rectangle is:
Lets input the information we know:
The area would be
Rounding to significant digits:Rounding to the first significant digit gives you 30
Rounding to the second significant digit gives you 38
Rounding to the third significant digit gives you 38.3
Rounding to the fourth significant digit gives you 38.25
Hope this helps.
-Benjamin
Answer:
39
Step-by-step explanation:
63/4 + 42/4 + 51/4
= 63/4 + 21/2 + 51/4
= 63/4 + 93/4
=39
Pi + e= 5.85987448205 or 5.86 if rounded
Answer:
3x+4x=7x
Step-by-step explanation:
basically 3x+4x means 3*x+4*x
thus, we can take x out as a common factor of both
x(3+4)= x*7=7x
or
you can sum the variables with the same element (x is our element in here)
thus,
3x+4x=7x
if it would be 3x+4y you cannot sum them since the elements are different (x and y)
Answer:
r = - 3
Step-by-step explanation:
Given
40 = 16 - 8r ( subtract 16 from both sides )
24 = - 8r ( divide both sides by - 8 )
- 3 = r