Answer:
The cost will be $16 for four attendees.
Step-by-step explanation:
Cost for one attendee: $12 ÷ 3 = $4
Cost for four attendees: $4 × 4 = $16
Answer:
7 quarts
Step-by-step explanation:
you subtract the amount that the first aquarium can hold from the second amount
Answer:
tetrahedral
Step-by-step explanation:
According to the valence shell electron pair repulsion theory (VSEPR) the shape of a molecule is dependent on the number of electron pairs on the valence shell of the central atom in the molecule.
The predicted electron pair geometry may sometimes differ from the molecular geometry due to the presence of lone pairs and multiple bonds.
If we consider each nitrogen atom in N2 independently, we will notice that each nitrogen atom has four regions of electron density. Hence the electron pair geometry is tetrahedral.
Answer:

Step-by-step explanation:
The given triangle is a 45°-45°-90° triangle. Use the following rule:

The length of the legs is 4. Insert this value into the equation:

Simplify:

:Done
we know that the quatraitic equation
we know that the quadratic equation is aX square + bx + c we put this value A and B and C in equation X square + bx + c