The answer is <span>0.118 seconds</span>.
The velocity (v) is the distance (d) divided by time (t):
v = d ÷ t
It is given:
v = 3.00 × 10⁸ meters per second
d = 3.54 × 10⁷ meters
It is unknown:
t = ?
If:
<span>v = d ÷ t
</span>Then:
<span>t = d ÷ v
</span>t = 3.54 × 10⁷ meters ÷ <span>3.00 × 10⁸ meters/second
t = 1.18 </span>× 10⁻¹ seconds
t = 0.118 seconds
Therefore, radio signal will travel from a satellite to the surface ofEarth 0.118 seconds.
Answer:
the maid
Step-by-step explanation:
there are no corners in the circular house haha
I believe this would be -10b^2+12b-16
Hope this helps!
Given:
I have walked 20% of the way to school.
I have 1200 metres more to walk than when I have 20% of the walk remaining.
To find:
The distance from home to school.
Solution:
Let x be the distance from home to school.
I have already walked 20% of the way to school and i have 1200 metres more to walk than when I have 20% of the walk remaining.
It means 1200 is
of the total distance from home to school.
![1200=\dfrac{60}{100}x](https://tex.z-dn.net/?f=1200%3D%5Cdfrac%7B60%7D%7B100%7Dx)
![1200=0.6x](https://tex.z-dn.net/?f=1200%3D0.6x)
![\dfrac{1200}{0.6}=x](https://tex.z-dn.net/?f=%5Cdfrac%7B1200%7D%7B0.6%7D%3Dx)
![2000=x](https://tex.z-dn.net/?f=2000%3Dx)
Therefore, the distance from home to school is 2000 metres.
y(x)=sin^2 (x/4)+12sin(x/4)
y(x) = sin^2(x/7) +16sin(x/7)
From the Chain Rule,
y'(x) = 2sin(x/4)*(1/4)cos(x/4) + 12(1/4)cos(x/4).
At x=4pi, the slope of the tangent line is
y'(4pi) = 2sin(4pi/4)*(1/4)cos(4pi/4) + 12(1/4)cos(4pi/4).
= 2sin(pi)*(1/4)cos(pi) + 12(1/4)cos(pi)
= 2(0)(1/4)(-1) + 12(1/4)(-1)
= -3
The angle (in radians) that the tangent line makes to the
positive x-axis is
pi - arctan(3)= 1.249 rad =71.565 degree