Answer:
17.32m ; 110°
Step-by-step explanation:
Distance between X and Z
To calculate the distance between X and Z
y^2 = x^2 + z^2 - (2xz)*cosY
x = 20, Z = 10
y^2 = 20^2 + 10^2 - (2*20*10)* cos60°
y^2 = 400 + 100 - (400)* 0.5
y^2 = 500 - 200
y^2 = 300
y = sqrt(300)
y = 17.32m
Bearing of Z from X:
Using cosine rule :
Cos X = (y^2 + z^2 - x^2) / 2yz
Cos X = (300 + 100 - 400) / (2 * 20 '*10)
Cos X = 0 / 400
Cos X = 0
X = cos^-1 (0)
X = 90°
Bearing of Z from X
= 20° + X
= 20° + 90°
= 110°
Answer: about 14% of the 7 grade don't play sports
Step-by-step explanation: i think
Answer:
where are the patternes that are supposed to be shown?
Step-by-step explanation:
it says : Which pair of patterns below represents that of Edward and Juan?
but there are no patterns shown
The logarithmic expression is
To expand the expression we have to use some properties of logarithm.
We know that 
By using this property we can write,
Square root means to the power 1/2, so for 
, we can write 
.
Now we have to use another property of logarithm.
We know that, 
So we will use this property to 
Now we have to use another property of logarithm.
We know that, 
By using this property we can write,
This is the required aswer here.
