Hi I don’t know if this is right but I got that k is equal to 4 I got that because if you do
4 times 3/4 you get 12/4 that is equal to 3.
Now you have k + 3=7 you move 3 to the other side and make it negative
K= 7-3
K=4
Hope this helped!
What do you mean doubling? You can add 7+7+7 which equals 21.
<span>The sinusoidal curves are shown in the picture attached.
Note that the two waves have the same amplitude (same "height"), the same wavelength (same distance from one peak to the next one) and therefore the same frequency, but different phase (they start in different points).
When you sum two different sinusoidal curves with the same amplitude and frequency, but different phase you get a sinusoidal wave with the same frequency as the original curves, but a different amplitude and a different phase.
Therefore, the correct answer is
graph B).
</span>
<h2>90 sq in</h2>
Step-by-step explanation:
The total area in the figure can be divided into two areas.
The is the area of the rectangle.
The is the area of the adjacent triangle to the rectangle.
Total area=90
3d.79480km thats the answer i think