The basis to respond this question are:
1) Perpedicular lines form a 90° angle between them.
2) The product of the slopes of two any perpendicular lines is - 1.
So, from that basic knowledge you can analyze each option:
<span>a.Lines s and t have slopes that are opposite reciprocals.
TRUE. Tha comes the number 2 basic condition for the perpendicular lines.
slope_1 * slope_2 = - 1 => slope_1 = - 1 / slope_2, which is what opposite reciprocals means.
b.Lines s and t have the same slope.
FALSE. We have already stated the the slopes are opposite reciprocals.
c.The product of the slopes of s and t is equal to -1
TRUE: that is one of the basic statements that you need to know and handle.
d.The lines have the same steepness.
FALSE: the slope is a measure of steepness, so they have different steepness.
e.The lines have different y intercepts.
FALSE: the y intercepts may be equal or different. For example y = x + 2 and y = -x + 2 are perpendicular and both have the same y intercept, 2.
f.The lines never intersect.
FALSE: perpendicular lines always intersept (in a 90° angle).
g.The intersection of s and t forms right angle.
TRUE: right angle = 90°.
h.If the slope of s is 6, the slope of t is -6
FALSE. - 6 is not the opposite reciprocal of 6. The opposite reciprocal of 6 is - 1/6.
So, the right choices are a, c and g.
</span>
He should just pick random answers or choose something closest to it.
Answer:
24 ten thousands means 24 x 10, 000 which is equivalent to 240, 000
Answer:
The graph is attached.
Step-by-step explanation:
The exercise says that Elon took 35 seconds to pull the boot up to the surface, how the constant rate is:
- Constant rate: 0.1 meters per second.
To know the meters below the surface that is the boot, we multiply the constant rate by the time Elon took to pull up it:
- Boot depth = 0.1 m/s *35 s
- Boot depth = 3.5 meters.
How the boot is pulling up through the time, the formula must subtract the time from the depth, how is below:
Where:
<em>a = depth.</em>
<em>t = time.</em>
The measure of the third angle is 50 because a triangle has a sum of 180 degrees by angle.
so... 46+84=130 and to get to 180, the last angle has to be worth 50.
