D is what i got. because that is the only possible answer.
Answer:
Option A
|-6 -2|
|1 1|
Step-by-step explanation:
This is a product of a matrix.
So for the first number on the first row, we have;
(4 × -3) - (3 × -2) = -12 + 6 = -6
For the second number on the first row, we have;
(4 × 1) - (3 × 2) = 4 - 6 = -2
For the first number on the second row, we have;
(-1 × -3) - (-1 ×-2) = 3 - 2 = 1
For the second number on the second row, we have;
(-1 × 1) - (-1 × 2) = -1 + 2 = 1
Thus, we now have;
|-6 -2|
|1 1|
Answer:
Part c) 
Part d) 
or 
Step-by-step explanation:
Part c) Find the volume of the inverted rectangular pyramid
The volume of the rectangular pyramid is equal to
where
B is the area of the rectangular base
h is the height of pyramid
<em>Find the area of the base B</em>
substitute
Part d) Find the maximum volume of tea in the tea cup
we know that
The volume of cylinder (tea cup) is equal to
we have
substitute
-----> exact value
<em>Find the approximate value</em>
assume
Answer:
The volume each of the four barrels of the same size will be at least 47.5 liters.
Step-by-step explanation:
Let the volume of each of the four barrels is v liters.
Now, the amount of water that can be held in the fifth barrel is 10 liters. The total capacity of holding water for the 5 barrels combines is at least 200 liters.
So, from the above-given information, we can write the inequality to determine the volume of each of the four barrels will be
10 + 4v ≥ 200
Solving this we get,
4v ≥ 190
⇒ v ≥ 47.5
Therefore, the volume each of the four barrels of the same size will be at least 47.5 liters. (Answer)
