Answer:
.1 (or 1/10)
Step-by-step explanation:
3 * 10^9 = 3 * 10^8/x
<em>Use PEMDAS to interpret</em>
3* 10^9 = 3 * (10^8)/x
<em>Divide both sides by 3</em>
10^9 = (10^8)/x
<em>Divide both sides by 10^8</em>
10 = 1/x
<em>Find the reciprocal of both sides</em>
1/10 = x
Answer:
=
= 0.83
Step-by-step explanation:
The key understanding here is that ΔJKL is similar to triangle 3 based on the AA criterion (they both have a right angle and a 40° angle).
We can find
by setting up a proportion statement that includes KL, JL, and the lengths of their corresponding sides in triangle 3.
We can use this proportion:
= ![\frac{JL}{7.7}](https://tex.z-dn.net/?f=%5Cfrac%7BJL%7D%7B7.7%7D)
⇒ opposite to 40° angle
KL, JL ⇒ ΔJKL
⇒ adjacent to 40° angle
6.4, 7.7 ⇒ triangle 3
[Now see the attachment]
Now we can rewrite the equation to show the ratios of the side lengths within each triangle.
= ![\frac{6.4}{7.7}](https://tex.z-dn.net/?f=%5Cfrac%7B6.4%7D%7B7.7%7D)
⇒ ΔJKL
KL, 6.4 ⇒ adjacent to 40° angle
⇒ triangle 3
JL, 7.7 ⇒ adjacent to 40° angle
If I can offer a suggestion ... You ought to look back in your book, or notes,
or homework, and recall what "intercept" means, and what one looks like.
The "y-intercept" of an equation is the point where
the graph crosses the y-axis.
On this graph, the line crosses the y-axis at y=5 .
The "x-intercept" of an equation is the point where
the graph crosses the x-axis.
On this graph, the line never crosses the x-axis at all.
(That DOESN't mean the x-intercept is zero. It means there isn't any.)