Density (D) is the quotient obtained when mass (m) is divided by volume (v).
D = m / v
The volume is the difference of the volume read after and before the object is placed in the beaker,
v = 23.1 mL - 18.5 mL = 4.6 mL
Substituting the known values for the density,
D = 8.24 g / 4.6 mL = 1.79 g/mL
Thus, the density is approximately equal to 1.79 g/mL.
Answer:
no idea but you will get it soon
Answer:
<u>(r³)⁻² = r ³ ˣ ⁻² = r ⁻⁶ = 1/r⁶</u>
Step-by-step explanation:
1. Let's recall the rules about the power of a power and the rule of negative exponents to simplify the expression provided:
The first rule tells us that to raise a power to a power, just multiply the exponents. Here you see that r³ raised to the ⁻² power.
The second rule says that any number different than zero, raised to a negative power equals its reciprocal raised to the opposite positive power.
Thus, x ⁻ⁿ = 1/x ⁿ
2. Now, let's find the equivalent after following these rules:
<u>(r³)⁻² = r ³ ˣ ⁻² = r ⁻⁶ = 1/r⁶</u>
<span>(15/4)*z + 12?... I tried working with different ways on the calculator to get the answer and that might be it.</span>