PLEASE help me with this :((

Question

asked Nov 19, 2024 218k views

1 Answer

Saranicole · Answer 1 · 2024-11-23T22:07:22+0000

Problem 1

Step-by-step explanation:

Since
$WV+VU \\e 12$ ,

we can set up this equation

WV + VU = 12 + k

where k is nonzero

If k = 0 happened, then we'd land on WV+VU = 12. So we want anything but k = 0.

Let's plug in VU = 5 and see what happens

WV + VU = 12 + k

WV + 5 = 12+k

WV = 12+k-5

WV = 7+k

This shows the connection of
$WV+VU \\e 12 \text{ and } VU = 5$ leading to
$WV \\e 7$

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Problem 3

Step-by-step explanation:

Angle A = 100 degrees, which leaves 180-A=180-100 = 80 degrees to be split amongst the two remaining angles of triangle ABC.

This leftover amount (80) is not larger than 90. So there is no way to have angle B = 90

It turns out that any obtuse triangle cannot have a 90 degree angle. The other two angles must be acute.

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Summary: Both answers are True