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Answer:
First, Sabrina puts a tablecloth on the table. Next, she puts on six plates. After she puts on the plates, Sabrina puts on the knives, forks, and spoons. Finally, the glasses go on. Now the table is ready.
Explanation:
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Complete question :
two less than the product of a number and three Evaluate when f = 4.5.
Evaluating an Algebraic Expression Write and evaluate the expression shown on the left. Then, check all that apply. Write the expression as 2 – 3f. Write the expression as 3f – 2. Write the expression as 2f – 3. The value when f = 4.5 is 6.75. The value when f = 4.5 is 6. The value when f = 4.5 is 11.5.
Answer:
3f - 2
The value when f = 4.5 is 11.5.
Explanation:
2 less than the product of a number and 3
Let the number = f
Product of number and 3 = f * 3 = 3f
2 less than the product :
3f - 2
If the value of f = 4.5
Then, substituting f = 4.5 in the expression :
We have :
3(4.5) - 2
13.5 - 2
= 11.5
Answer:
Velocity B = 20 m/s
Explanation:
Let the mass and velocity of the first object be A.
Let the mass and velocity of the second object be B.
Given the following data;
Mass A = 50 kg
Velocity A = 10 m/s
Mass B = 25 kg
To find the velocity of mass B;
First of all, we would determine the momentum of mass A;
Mathematically, momentum is given by the formula;
Momentum = mass * velocity
Substituting into the formula, we have;
Momentum A = 50 * 10
Momentum A = 500 Kgm/s
As a result of the collision, momentum of mass A is equal to the momentum of mass B.
Momentum A = Momentum B
500 = mass B * velocity B
500 = 25 * velocity B
Velocity B = 500/25
Velocity B = 20 m/s
Therefore, the velocity of the 25.0 kilogram mass after the collision is 20 meters per seconds.
