Answer:
t = 7 • ± √2 = ± 9.8995
Step-by-step explanation:
Answer:
2 < 3 ⇒ -2 > -3
Step-by-step explanation:
∵ 2 < 3
If we divide each side by -1
∴ -2 < -3 but it's not true
∴ we must reverse the sign of inequality
∴ -2 > -3
similar:
∵ 25 > 20
If we divide each side by -5
∴ -5 > -4 it's not true
∴ we must reverse the sign of inequality
∴ -5 < -4
Do the formula length times width times height.
Then, round like you normally would!
And for the second one, just multiply 2.5 x 6!
Answer: D
Step-by-step explanation:
An equation would look like this:
x+1=3
An expression would look like this:
x+1
As you can see, an expression has no equal sign. Conversely, an equation does. That is the primary difference between a(n) (algebraic) expression and equation.
Answer:
Step-by-step explanation:
Since it is a square, all four sides are equal and its perimeter is just
P=4s, so if P=8 then
4s=8, dividing each side by 4 we get
s=2
So each side of the plastic square is 2 centimeters.
