3 years ago

Question 5 of 10

Mathematics

1 answer:

Mashcka [7]3 years ago

4 0

Answer:

B. -8

Step-by-step explanation:

F(x) = 2x

F(-4) = 2(-4) = -8

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Ray Of Light [21]

Answer:

$\large\boxed{density=500\ \dfrac{g}{dm^3}}$

Step-by-step explanation:

$density=\dfrac{mass}{volume}\\\\1L=1dm^3\\1L=1000mL\to1mL=\dfrac{1}{1000}L=0.001L\\1mL=0.001dm^3\\\\\text{We have}\\volume=12.0mL=12.0\cdot0.001dm^3=0.012dm^3\\mass=6g\\\\\text{Substitute}\\\\density=\dfrac{6g}{0.012dm^3}=\dfrac{6\cdot1000}{0.012\cdot1000}\ \dfrac{g}{dm^3}=\dfrac{6000}{12}\ \dfrac{g}{dm^3}=500\ \dfrac{g}{dm^3}$