#16 please. i just added more information for those who wanted to help.
2 answers:
There are a few ways to answer. The simplest of which is to simply say "angle 1" which is written as or you can say "angle ELS" or "angle SLE" written as
and
respectively. All three of these angles represent the same idea.
It might help if you used a different color marker to help see what's going on. In figure 1 (see attached image), I've marked angle ALS in green. Then if you take out angle 2 from the angle ALS, then you'll be left over with just angle 1. Angle 2 is marked in blue and angle 1 is marked in red. This is shown in figure 2.
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Answer:
Step-by-step explanation:
Let sides of the triangle be
Semi-perimeter (s) =
Area of one tile
So,
Area of 20 tiles
Cost of polishing the floor at the rate of 2 rupees per sq.cm =
Answer:
Choices 1 and 4 are correct.
Step-by-step explanation:
We first need to find what the slope of the line is. That way, we can find out which possible answers are perpendicular to it:
Since we now have the slope, we need the negative reciprocal of it. Remember: if x is the slope, it's negative reciprocal will be . Therefore, if the line's slope is 3, then we need to find answers with a slope of
.
The first answer is correct, as you have marked. The second answer, while written a little weirdly, does show the slope as 3, which we know as wrong. The third choice is not correct, however. This equation is written in point-slope form, where. The only variable we have to worry about is m, which, in the third choice, is 3. The fourth answer is correct, which sounds weird at first. Let's put that equation into slope-intercept form:
Equations like these can be real sneaky, so it's important not to jump to conclusions with them.