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Answer:
There are no extraneous solutions
Reasoning:
An extraneous solution is a solution that isn't valid, it might be imaginary like the square root of a negative number.
first we want to isolate z:
1+sqrt(z)=sqrt(z+5)
^2 all ^2 all
(1+sqrt(z))(1+sqrt(z))=z+5
expand
1+2sqrt(z)+z=z+5
-1 -z -z -1
2sqrt(z)=4
/2 /2
sqrt(z)=2
^2 all ^2 all
z=4
Since there is one solution and it is a real number, there are no extraneous solutions.
<span>8 + 18a - 2 + 6a
= 24a + 6
answer is </span><span>D. 24a+6</span>
Answer:
x=4
Step-by-step explanation:
h(x)=-x+4
h(x)-0+4
h(x)=4
Answer:
C = 7pi units or approximately 21.98 units
Step-by-step explanation:
The circumference is given by
C = pi * d
We are given the diameter of 7
C = 7pi
We can approximate pi by 3.14
C = 7 *3.14
C =21.98 units
