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kipiarov [429]
3 years ago
9

The length on a rectangular field is (4y + 3x) m an the width is (2y - x) m. Write an expression to show the perimeter of the re

ctangular field.
Mathematics
1 answer:
photoshop1234 [79]3 years ago
6 0
P=2(4y+3x)m+2(2y-x)m\\
P=8my+6mx+4my-2mx\\
P=4mx+12my
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Answer:

∠F = 42° to the nearest degree

Step-by-step explanation:

In this question, we are asked to calculate the value of the angle.

Kindly note that since one of the angles we are dealing with in the triangle is 90°, this means that the triangle is a right-angled triangle

Please check attachment for the diagrammatic representation of the triangle

From the diagram, we can identify that the EF is the hypotenuse and the length FG is the adjacent. Thus , the appropriate trigonometric identity to use is the cosine

mathematically;

Cosine of an angle = length of adjacent/length of hypotenuse

Cos F = \frac{30}{38}\\Cos F =  0.7895\\F = Cos^{-1} 0.7895\\

F = 42.07

∠F = 42° to the nearest degree

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The equation x²– 8x – 5 = 0 can be transformed into the equation (x - p)² = q, where p and q are real numbers. What are the valu
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The form (x - p)^2 = q is the form that completing the square will leave us with.

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