Perform the indicated operations. Write the resulting polynomial in standard form.(4x8 - 5x7 + 5x6 + 7) - (9x8 - 2x7 - 8x6 + 8)
A. -5x8 - 3x7 + 13x6 - 1
B. -5x8 - 7x7 - 3x6 + 15
C. 13x8 - 7x7 - 3x6 - 1
D. 13x8 - 7x7 - 3x6 + 15
Answer: A
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Evaluate the integral.
A. 
B. 
?
C. 
- ?
D. 
?
A water source is contaminated with a toxic chemical and is being cleaned. The amount of chemical, in grams, remaining t hours after the cleaning process began is given by
?
.
?
How much of the chemical is removed from time 
to time 
?
?
A. 361.43 grams
B. 4.17 grams
C. 24.34 grams
D. 19.99 grams
Use the rules for exponents to rewrite the expression and then evaluate the new expression. (2-2)0
A. 1
B. 
C. 0
D. -4
Provide an appropriate response.Using Heron's formula, find the area of the triangle shown. Round the answer to four significant digits.
A. 1.555 mm2 B. 2.418 mm2 C. 0.3217 mm2 D. 0.1035 mm2