Answer:
- 2 - 5i
Step-by-step explanation:
Given
(4 + 2i) + (- 6 - 7i) ← remove the parenthesis
= 4 + 2i - 6 - 7i ← collect like terms
= - 2 - 5i
The two numbers that have a product of 48 are 6 and 8 or 12 and 4, etc. They can be multiplied together to get 48, which is the product of the two numbers.
The formula for finding the product of two numbers is to multiply them together. For example, if you have two numbers, a and b, the product of these two numbers is a multiplied by b or an a x b.
The two numbers that have a product of 48 and a sum of 16 are 4 and 12. You can multiply 4 and 12 together to get 48, and you can add them together to get 16.
When the product of two numbers is one of each number, the other number is 1. This means that when the product of two numbers is the same as one of the numbers, the other number must be 1, as 1 multiplied by any number is always equal to itself.
Learn more about the product of two numbers with an example:
brainly.com/question/27860917
#SPJ4
Answer:
B. sine; 46.5 feet high
Step-by-step explanation:
In this case, we use trigonometric ratio.
Assuming the horizontal ground, the cable and the height of the cliff forms a triangle,
The cable is the hypotenuse, the height of the cliff is opposite to the angle formed by the cable and the horizontal ground.
Thus; the most appropriate function is sine
Such that;
Sine θ = Opposite/Hypotenuse
Where; θ = 25°, opposite is the height of the cliff and hypotenuse is the cable, 110 ft
Therefore;
Sine 25° = Opp/ 110
Hence;
Opp = 110 ft × sine 25°
= 46.488 ft
= 46.5 ft
Therefore;
The function is Sine, and the height of the cliff is 46.5 ft high
