Answer:
x = 8
Step-by-step explanation:
==>Given that a family pool with a quadrilateral shape ABCD is similar with the dog pool EFGH, we can find the value of x by using the proportion of their corresponding sides.
Since ABCD ~ EFGH, the proportion of their corresponding sides are equal.
Thus, AB/EF = BC/FG = CD/GH = DA/HE
We have: 3/y = 4/3 = 5/z = x/6
Finding z:
4/3 = 5/z
Cross multiply
4*z = 5*3
4z = 15
z = 15/4
z = 3.75
Let's find x:
5/z = x/6
5/3.75 = x/6
Cross multiply
6*5 = x*3.75
30/3.75 = x
8 = x
x = 8
Cos x = 15/21
X= cos^-1 (15/21)
X=44
If you mean by rounding, then it is 33
Answer: 35.36
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Work Shown:
N(t) = N0*(1/2)^(t/5730)
N(t) = 200*(1/2)^(t/5730)
N(14325) = 200*(1/2)^(14325/5730)
N(14325) = 200*(1/2)^(2.5)
N(14325) = 200*0.17677669529663
N(14325) = 35.355339059326
N(14325) = 3<span>5.36</span>
You were fairly close to the answer
