The angle of a tangent and a radius is a right angle.
The missing length would be the hypotenuse. Use the Pythagorean theorem to solve.
X = SQRT(12^2 + 16^2)
X = SQRT(144 + 256)
x = SQRT(400)
X = 20
I basically pick a couple random numbers for both variables and plug them in to see if they are true.
Answer:
Linette paide $14.45 and Sheila paid $12.84 in total that is $27.29.
Step-by-step explanation:
So,
Matt answered 20 out of 25 questions.

We need to get the denominator to be 100. We can do that by multiplying the fraction by a form of 1.

From here, it should be easy to see that Matt has answered 80% of his test.
Answer: 2*pi and √3.
Step-by-step explanation:
We know that when we multiply a rational number different than zero and an irrational number, the product will be also an irrational number.
Then if one of the numbers for this case is 7/3 (A rational number), the other must be an irrational number.
The given options are:
3/7 (is a rational number, so this is not the correct option)
2*pi (pi is an irrational number, then 2*pi is also an irrational number)
Then (2*pi)*3/7 will be an irrational number.
1 (this is a rational number, then this is not the correct option)
√3 (This is an irrational number, then this will be a correct option)
Then the two correct options are:
2*pi and √3.