For this case, the first thing we must do is define variables.
We have then:
x: number of years of Joan y: number of years of ellen We now write the system of equations:
Solving the system we have:
So that Joan is 21 years old then:
Answer: joan will be 21 years old in 12 years
The angle between 0° and 360° that is coterminal with -160° is 200 degrees.
<h3>What are coterminal angles?</h3>
Two different angles that have identical starting and ending edges are termed coterminal angles however since one angle is measured clockwise and the other is determined counterclockwise, the angles' terminal sides have completed distinct entire rotations.
It is given that:
The angle is -160 degrees
An example of a positive coterminal angle would be 360-160=200 degrees since angles always travel either counterclockwise or clockwise from the +x axis.
There can be an unlimited number of rotations and hence infinite coterminal angles because there is no range.
= -160 + 360 = 200 degrees
= 200+ 360n
= -160 - 360n degrees
Thus, the angle between 0° and 360° that is coterminal with -160° is 200 degrees.
Learn more about the coterminal angles here:
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Answer:
B
Step-by-step explanation:
The arrangement should be based on the decreasing degree of the terms which may be determined by the variable x as it should come first in alphabetical order. The polynomial is then,
10x³ + 2x²y + 2xy^4 - 3y²
The degree is equal to the sum of the exponents. Thus, the answer is 5 and it is letter D.
Answer: Use operations combined terms and solve by insulating the
Equation
Step-by-step explanation:
