See the attached figure to better understand the problem
we know that
in the triangle ABC
tan 15=AC/BC--------> AC=BC*tan 15
BC=51 m
AC=51*tan 15------> AC=13.67 m
t<span>he height of the shorter building=207-AC----> 207-13.67----> 193.33 m
</span>the height of the shorter building=193 m
<span>
the answer Part a) is
</span>the height of the shorter building is 193 m
<span>
Part b) </span><span>how does the angle of depression from the top of the taller building relate to the angle of elevation from the top of the shorter building
</span>
we know that
the angle of depression is equals to the angle of elevation
so
the answers are<span>
A:They are congruent</span><span>
D:They are alternate interior angles</span>
Answer:
4 ≤ t ≤ 8
Step-by-step explanation:
Look at the graph and see if between the numbers whether the graph is going up or down.
Given parameters:
Quadratic expression:
x² - 6x + 7 = 0
Solve using quadratic formula;
x = 
From the equation;
a = 1, b = -6 and c = 7
Input the parameters and solve;
x = 
x = 
x = 
x =
or 
x = 7 or -1
Answer:
y = -2x
Step-by-step explanation:
It passes through -5, 10 and 5, -10
gradient = Δy/Δx
gradient = -10 - 10 / 5 -- 5
gradient = -20 / 10
gradient = -2
let's use -5, 10 for y = mx + b
10 = -2(-5) + b
10 = 10 + b
b = 10 - 10
b = 0.
the equation of the line is just y = -2x