3 years ago

How to be a better online friend

Mathematics

2 answers:

lara [203]3 years ago

8 0

Answer:

discord

Insta

Snap

Tiktok

Step-by-step explanation:

Anuta_ua [19.1K]3 years ago

6 0

Be helpful and funny

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The sum of a number and its additive inverse is equal to _____.

prohojiy [21]

The sum of a number and its additive inverse is equal to zero. The correct option among all the options that are given in the question is the second option or option "b". If we assume "x" to be a real number, then its additive inverse is "-x". On adding these two, we can see that the result comes to zero.

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4 years ago

To measure a stone face carved on the side of a mountain, two sightings 900 feet from the base of the mountain are taken. If th

olga nikolaevna [1]

Answer:

Height of the stone face = 66.29 feet

Step-by-step explanation:

Refer the given figure, here we need to find height of the stone face,

Height of the stone face = CD

CD = AD - AC

In ΔABC we have

$tan31=\frac{AC}{AB}\\\\tan31=\frac{AC}{900}\\\\AC=540.77feet$