Answer:
x = 31
Step-by-step explanation:
Given:
MN = 20
PQ = x
RS = 42
Required:
Value of x
SOLUTION:
In a trapezoid, the midsegment length equals the sum of both bases divided by 2
This implies that:
PQ = ½(MN + RS)
Plug in the values
x = ½(20 + 42)
x = ½(62)
x = 31
A) N + D = 30
B) .05N + .1D = 2.20
Multiplying equation A by -.05
A) -.05N -.05D = -1.50 then adding it to B
B) .05N + .1D = 2.20
.05D = .70
Dimes = 14
Nickels = 30 -14 = 16
Answer:
sec(x) = 1.15
Step-by-step explanation:
We can figure out what x is by using the arctan(x) function:

So, now let's figure out the cos(x) as sec(x) is equal to the reciprocal of cos(x):

Let's take the reciprocal:

And that's your answer.
Answer:
480 Elk (including sampled elk) are infected
Step-by-step explanation:
8000(3/50)=480