Answer:
A = 21 degrees
Step-by-step explanation:
Here in this question, we are told to calculate the value of angle A.
When two angles are tagged complementary, what this means is that the addition of both angles gives a total of 90 degrees.
Hence;
A + B = 90
This means that;
(x-21) + (2x -15) = 90
x + 2x -21-15 = 90
3x -36 = 90
3x = 90+ 36
3x = 126
x = 126/3
x = 42
But we are told to calculate the measure of A
A = x -21
A = 42-21
A = 21 degrees
Answer: Yes, 2.125 is a rational number.
Step-by-step explanation:
Answer:
At 75 MPH it would take 3 hours with no breaks. So go 3 hours and 30 minutes.
Step-by-step explanation:
225/75 = 3 Add break and traffic and go 3 1/2 hours.
The resulting equation that Kent has when he moves all the terms to one side of the equal sign is k² - 8k + 12 = 0
<h3>What is quadratic equation?</h3>
A quadratic function is a function that usually has a single variable and it is raised to the power of 2. An example is x² + 10x + 25 = 0
Given this equation: k + 12/k = 8
If both sides are multiplied by k, the equation becomes: k² + 12 = 8k
If all the terms are moved to one side of the equal sign: k² - 8k + 12 = 0
Please find attached the complete question. To learn more about multiplication, please check: brainly.com/question/3385014
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