Answer:
See explanation
Step-by-step explanation:
1. The student is wrong because imaginary roots always occur in conjugate pairs.
So -4i cannot be the only imaginary root. It has to be accompanied by 4i also.
2. So the 2 roots can be 4i and -4i.
therefore the equation can be
(x - 4i)(x + 4i) = 0
+ 16 = 0
Answer:
<h3>
m∠UVT = 97°</h3>
Step-by-step explanation:
Given m∠WVU = 169°, m∠WVT = (2x + 20)° and m∠UVT = (3x + 19)°, according to the diagram shown, it is seen that;
m∠WVU = m∠WVT +m∠UVT
Substitute the given parameters into the function as shown;
(2x + 20)°+(3x + 19)° = 169
collect like terms
2x+3x+20+19 = 169
5x+39 = 169
5x = 169-39
5x = 130
x = 130/5
x = 26°
Since m∠UVT = 3x+19, substitute x = 26 into the function
m∠UVT = 3(26)+ 19
m∠UVT = 78+19
m∠UVT = 97°
Answer:
C
Step-by-step explanation:
Try using a scratch piece of paper to graph the points of each table to see which one would have a negative slope. Or use the formula y1-y2/x2-x1 to find the slope and see which one is negative.
Answer:
The diagram of the plotting point is attached below.
Step-by-step explanation:
Given the points
as
so the point can be visualized as:
Now, we can check the point x = 3.5, and determine the corresponding value y = 2.75 and plot the point at the location (x, y) = (3.5, 2.75)
The diagram of the plotting point is attached below.
Answer:15
Step-by-step explanation:because we will 180-(120+45)