Answer:
A geodesic dome is composed of two different types of triangular panels. One of these is an isosceles triangle. In one geodesic dome, the measure of hte third angle is 58.5 degrees more than the measure of either of the two angles. Find the measure of the three angles.
Step-by-step explanation:
d = 36 mi the distance traveled in one direction
t1 = 1.5 hr the time of the trip upstream
t2 = 1 hr the time of the trip downstream
s = the speed of the stream
v = the speed of the boat in still water
the speed of the boat upstream is: v - s
the speed of the boat downstream is: v + s
traveling upstream
(v - s)*t1 = d
(v - s)*1.5 = 36
traveling downstream
(v + s)*t2 = d
(v + s)*1 = 36
by solving the system of equations
(v - s)*1.5 = 36
v + s = 36
we find
s = 6 mph
v = 30 mph
Answer:
The value of the Rational expression when is:
Step-by-step explanation:
For this exercise is important to remember:
- When a negative number is raised to an even power, the result will be positive.
- The multiplication of signs:
Then, given the following Rational expression:
You need to follow these steps in order to find its value when :
1. Substitute the given value of "x" () into the expression:
2. Evaluate and simplify:
Answer:
(a,b) is the mid-point of Line segment joining the points A(10,−6) and B(k,4)
So,
a=
2
10+k
and b=
2
−6+4
=−1
It is given that,
a−2b=18
Put b=−1
a−2(−1)=18
a=18−2=16
Now,
a=
2
10+k
16=
2
10+k
k+10=32
k=22
Step-by-step explanation:
it is good
Answer:
C
Step-by-step explanation:
the length is 63.2 in, and is represented by 6 pavers.
1 paver is therefore
63.2 / 6 = 10.53333333... in
rounded answer C is correct.