Solve the equation.0.11(x + 40) + 0.21(x + 30) = -11.7. (Round to the nearest whole number, if necessary.)
A. {-70}
B. {70}
C. {-10}
D. {10}
Answer: A
Mathematics
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Use differentiation to determine whether the integral formula is correct.
dx = -4 cot 
+ C
A. Yes B. No
Mathematics
Rewrite the number as indicated.A certain exotic sports car costs three hundred twelve thousand, three hundred ninety-two dollars. Rewrite the number using digits.
A. 3,203,920 B. 31,232 C. 312,392,000 D. 312,392
Mathematics
How long will it take $3,000 to grow to $8,500 if the investment earns interest at the rate of 18% / year compounded monthly? Round your answer to the nearest tenth. ? __________ year(s)
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the intersection of the given intervals.(-8, 0) ? [-2, 9]
A. (-8, 9] B. (-8, -2] C. (0, 9] D. [-2, 0)
Mathematics