Answer:
D
Step-by-step explanation:
D. All of the terms in set D are rational, as they can be expressed as decimal/fractions. sqrt25 is rational, because it simplifies to 5, which is rational.
Answer:
Step-by-step explanation:
Remove parenthesis
Multiply 
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.
You should leave $10.52 for waiter.
The total bill will be $67.33 including tax and tip.
Step-by-step explanation:
Given,
Bill before tax and tip = $52.60
Tip = 20% of pre tax amount
Amount of tip = 
Amount of tip = 
Amount of tip = $10.52
Sales tax = 8%
Amount of sales tax = 
Amount of sales tax = 0.08*52.60
Amount of sales tax = $4.208
Final bill = Bill + Tip + Sales tax
Final bill = 52.60 + 10.52 + 4.208 = $67.33
You should leave $10.52 for waiter.
The total bill will be $67.33 including tax and tip.
Keywords: percentage, addition
Learn more about addition at:
#LearnwithBrainly
Answer:
12) A
the values are each devided by three then multiplied by 4
13) C
values are 4 times as big as in the right figure
14) and 15) two thirds of the value in the left figure. the rotation is just to disorient you a lil :D just keep the 90° angle as a reference point
x is option A
and y is option C
