3 years ago

Graph the function xy+25=0

Mathematics

2 answers:

forsale [732]3 years ago

5 0

The answer would be graph B.

Likurg_2 [28]3 years ago

4 0

This is the same as saying x*y+25=0.

Also, x*y=-25.

The solution (if you had to find it) would be -5 and 5.

To graph, it would be y=-25/x

Edit: This can be simplified down to y=-5 since it is a constant so it would be a straight line on the y-axis down at -5.

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6 0

3 years ago

What is the radian measure of the smallest angle formed by the hands of a clock at 7 o'clock?

netineya [11]

See the picture attached to better understand the problem
we know that
a full circle is a 360 degrees
divided in 12 equals parts-------> 360/12-------> 30 degrees each part

<span>the smallest angle formed by the hands of a clock at 7 o'clock has 5 parts
so
5*30</span>°------> 150°

convert to radian
pi radians---------> 180°
x ---------------> 150°
x=150*pi/180--------> x=0.83*pi radians

the answer is
0.83*pi radians or 2.62 radians