<h3>Answers:</h3>
- 7. D
- 8. C
- 9. D
- 10. D
- 11. C
- 12. B
=================================
Explanation:
The result of problem 7 is undefined because the matrices are not the same size. Both matrices must have the same number of rows, and they must have the same number of columns. This is so the terms match up when we add them. This applies to question 9 as well because subtraction is a form of addition.
For problem 8, we add the corresponding terms. So for instance, along the top we have -2+(-3) = -5 as the first entry in the top row. So that's why the answer is C for problem 8. Problem 10 and 11 are similar to this. Be careful to distribute the negative through to each term in the second matrix when subtracting matrices.
For problem 12, we multiply the outer 3 by each term inside the matrix. We end up with choice B.
Answer:
16m, 64m, 144m
Step-by-step explanation:
d=16t²
t=1 t=2 t=3
d=16×1² d=16×2² d=16×3²
d=16×1 d=16×4 d=16×9
d=16m d=64m d=144m
<span>If the total number of students is 100, then 36 students like dogs and 65 like cats. So 29 more students like cats than dogs. </span>
Answer:
Step-by-step explanation:
slope is -60
it's the rate of change... in the distance to the destination
Answer:
The population of the town in the year 1962 will be 1730.
Step-by-step explanation:
The population of Smallville can be found by the equation
, where P(t) is the population at time t, r represents the rate of growth, and I is the initial population.
Now, if there are 225 residents in 1950 and the population of the town grows at a rate of 17% per year, then the population of the town in the year 1962 will be
(Approximate)