Which equation is true of c is 3.5
1 answer:
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Answer:
B. 8 • 8 • 8 • 8 • 8
Step-by-step explanation:
I'm gonna assume you meant 8 to the 5th power, or .
Step 1: <u>Define and explain.</u>
Remember: exponents are simply repeated multiplication.
Exponents tell you how many times to multiply the base number by itself.
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Step 2: <u>Solve.</u>
Step 3: <u>Conclude.</u>
Therefore, is the same as
Answer:
To decide whether to add or subtract, determine if the values of the coefficients are the same or opposites:
. If the values are the same, subtract the equations.
• If the values are opposites or additive inverses, add the equations.
Step-by-step explanation:
Given
Required
How to solve
Options (1) and (2) are incorrect because none of the options eliminate x or y.
For option (3),
- Check for the coefficients of x and y
- If they are the same (sign and value), then subtract; otherwise add
For instance:
Rewrite the second equation
The coefficient of y are the same, so we subtract;
<em>See that y has been eliminated</em>