Answer:33.95 m
Step-by-step explanation:
Given
The height of the man is 2 m
Distance between man and tree is 30 m
the angle of elevation of the top from the eyes is
from the figure,
Using Pythagoras we can write
Thus the distance between the men eyes to the top of the tree is 33.95 m
Answer:
x-y-3=0
Step-by-step explanation:
Choose two common points on the line of intersection of the planes x − z = 3 and y + 2z = 3:
- 1st point: if x=0, then z=-3 and y=3-2z=3+6=9, so the 1st point is (0,-3,9);
- 2nd point: if x=3, then z=0 and y=3-2z=3-0=3, so the 2nd point is (3,0,3).
The perpendicular plane to the plane x+y-4z=6 is parallel to the vector with coordinates (1,1,-4) (normal vector of the given plane).
Hence, the equation of needed plane is
Thus,
Answer:
Let do this..
Step-by-step explanation:
ABCD is a parallelogram - 1
In ∆ADC and ∆CBA
AC=AC (Common)
<DAC=<BCA (Given)
AD=CB (From 1)
Therefore, ∆ADC = ∆CBA (By SAS)
It will be (7x+8)+(7x+8+7x=180
Answer:
a. Variable term
b. Variable term
Explanation:
a) We were given the algebraic expression:
The first term of the algebraic expression is:
The first term is a variable term
The variable is "y" and its coefficient is "-5"
b) We were given the algebraic expression:
The second term of the algebraic expression is:
The second term is a variable term
The variable is "b" and the coefficient is "-6"