Plug in m/4 into the equation:
Solve the parentheses in the equation:
Your equation should now look like this:
The answer is D.
Solve the parentheses in the equation:
Your equation should now look like this:
The answer is D.
If 3x+y=23, 6x-y=50, what is the value of x and y?
2 answers:
Answer: x = 8 1/9, y = 1 1/3
Step-by-step explanation:
We can solve this by either of two ways: Solve the equations or graph the two lines abnd find where they intersect (the one point that satisfies both equations.
<u>SOLVE</u>
3x+y=23 [modify this equation so that one of the terms drops out when added to the second equation]
-6x-2y=-46 [let's multiply it by -2]
<u>6x-y=50 </u> [Add the second equation]
-3y=4 [Result of addition]
y=-(4/3), or 1 1/3 [The value of y. Now use this in either equation to find x
3x+y=23
3x-(4/3)=23
3x=23+(4/3)
3x= (73/3)
x = (73/9), or 8 1/9
<u>GRAPH</u>
The attached graph shows the intersection of the two lines at (8.111, -1.333), the same as we found in the above calculation.
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The trigonometric form of the complex number 1 + 3i is 3.16[cos(71.57)° + isin(71.57°)]
<h3>What is an equation?</h3>An equation is an expression that shows the relationship between two or more numbers and variables.
Complex number is in the form z = a + bi, where a, b are real numbers.
Given the complex number z = 1 + 3i
In polar form: r = √(1² + 3²) = 3.16
Ф = tan⁻¹ (3/1) = 71.57⁰
The trigonometric form of the complex number 1 + 3i is 3.16[cos(71.57)° + isin(71.57°)]
Find out more on equation at: brainly.com/question/2972832
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