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>
Start with "<span>1 British pound equals 1.6972 Swiss francs" and make a conversion factor out of it:
</span>
1.6972 Sw. F.
------------------
1 Br. pound
Invert this, obtaining:
1 Br. pound
-------------------
1.6972 Sw. F.
Here's where the fun begins. To find the value of 1 SFr in BPS, mult.
1 SFr by the above conversion factor:
1 SFr 1 BPS
----------- * --------------------- = 0.5892 BPS
1 1.6972 Sw. F.
This is a formal way in which to do this problem. You could obtain the same result if you'd simply invert
1 Br. pound
------------------- = 1
1.6972 Sw. F.
and divide 1 by 1.6972.
Answer:
because the area expression can be rewritten as 
which equals 
Step-by-step explanation:
Area of the rectangle 
Since the length of a rectangle is 20 units more than its width.
The correct option is therefore 1.
One of the easiest question I've seen.
It's a scale factor of 5 because,
5*5=25
5*3=15
5*4=20
Hope this helps!
Y - the money he still owes,
x - the number of months ( from x = 0 to x = 18 ):
y = 2,016 - 112 x
