SOLUTION: Here are my questions there are only 3 I couldnt delete the extras I only need one thru three which are due Monday. Thanks
1. Simplify and evaluate:
(x7y-4z0/5-2x3y-8z
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Question 79978: Here are my questions there are only 3 I couldnt delete the extras I only need one thru three which are due Monday. Thanks
1. Simplify and evaluate:
(x7y-4z0/5-2x3y-8z-9)2
2. Convert to scientific notation (here you may use x as multiplication):
0.00452
3. For f(x) = 5x – 4, find f(-1).
1. Simplify and evaluate:
(x7y-4z0/5-2x3y-8z-9)2
2. Convert to scientific notation (here you may use x as multiplication):
0.00452
3. For f(x) = 5x – 4, find f(-1).
Here are my questions i need help with they are due monday and i need a break down so i can learn the process for solving. Thank you
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
1. Simplify and evaluate:
(x7y-4z0/5-2x3y-8z-9)2
:
This is so ambiguous it could be:
:
:
you can't do very much with this so maybe you mean:
:
:
any number ^0 is 1 so we can get rid of z in the numerator
:
:
Change the exponents signs when you move terms from the denominator to the numerator
:
Combine like terms, add the exponents
:
Square each term, multiply each exponent by 2
:
It's simplified but can't evaluate because we don't know the value of the variables.
:
2. Convert to scientific notation (here you may use x as multiplication):
0.00452
:
Move the decimal point to the right between the 1st and 2nd significant digits;
"tenths, hundredths, thousands" which would be
WE then have
3. For f(x) = 5x – 4, find f(-1).
:
f(-1) just means you substitute -1 for x evaluate:
f(-1) = 5(-1) - 4
f(-1) = -5 -4
f(-1) = 9
:
When the problems are ambiguous, it discourages tutors from choosing to help you. When in doubt, use brackets.
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