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lara [203]
2 years ago
5

Janke’s garden is in the shape of a right isosceles triangle with base 3.4 m. If she enlarges her garden to a similar shape whos

e base is doubled, what will the area of her new garden be?
Mathematics
1 answer:
Mazyrski [523]2 years ago
5 0
The answer will be 1156 bc it say double multiply the number which gives u 1156
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If 4sintheta = -3, solve for theta given 0°>_theta>_360°
Soloha48 [4]

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311.41 degrees

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If 4 sin Ф = -3 and Ф is between 0 and 360 degrees, then we conclude that Ф must be either in Quadrant III or Quadrant IV (because the sine is negative).

Let's assume we're in Quadrant IV.  Then sin Ф = opp / hyp = -3/4; that is, the opp side is negative and has length 3, and the hypo is positive 4.

According to the Pythagorean Theorem,  (-3)^2 + x^2 = 4^2, or,

x^2 = 16 - 9 = 7.

Then x is either √7 or -√7.

To find the angle Ф, use the inverse sine function:

Ф = arcsin (-3/4).  Using a calculator we get the angle -40.59 degrees, which corresponds to (360 degrees - 40.59 degrees), or 311.41 degrees.  We can check this by finding the sine of 311.41 degrees; the result is -0.75, which matches "If 4sintheta = -3."  

6 0
2 years ago
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