Divide 82 in a ratio of 3:5
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An equation is formed of two equal expressions. The solution is (-9,-2).
<h3>What is an equation?</h3>An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given the equation x + 3y = -15 and -3x + 2y = 23,
Step 1- Multiply the equations to make the coefficients match in either the x- or y-variable.
x + 3y = -15
3x + 9y = -45
Step2- After you multiply, add or subtract the two equations.
3x + 9y -3x + 2y = -45 + 23
Step 3- Then solve for the variables that is left.
11y = -22
y = -2
Step4- Substitute the value of y in any one of equations to solve for x.
x + 3(-2) = -15
x - 6 = -15
x = -9
Hence, The solution is (-9,-2).
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Answer:
<h3>=> Cos theta = Base /Hypotenuse
=> Cos Z = 30/50 => 3/5
★ So, Option <u>B) 3/5 </u> is a correct answer.
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<h3>8. Cos X </h3>
=> Cos theta = Base/Hypotenuse
=> Cos X = 12/37
★ So, option <u>D)</u><u> </u><u>1</u><u>2</u><u>/</u><u>3</u><u>7</u> is a correct answer.
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<h3>9. Sin Z</h3>=> Sin theta = Perpendicular/Hypotenuse.
Sin Z = 16/20 => 4/5
★ So, option <u>C)</u><u> </u><u>4</u><u>/</u><u>5</u> is a correct answer
<h3>_____________________</h3><h3>10. Sin Z </h3>=> Sin theta = Perpendicular/Hypotenuse
Sin Z = 48/50 => 24/25
★ So, option <u>A)</u><u>2</u><u>4</u><u>/</u><u>2</u><u>5</u> is correct answer
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