Solve the equation.4r + 3 = 23
A. {5}
B. {2}
C. {20}
D. {16}
Answer: A
Mathematics
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Find first four terms of the indicated expansion by use of the binomial series.(1 - 3
)7
A. 1 - 21
+ 63x - 105x
+ . . .
B. 1 - 21
+ 189x - 945x2 + . . .
C. 1 + 21
- 189x + 945x
- . . .
D. 1 - 21
+ 189x - 945x
+ . . .
Mathematics
Use a calculator and the change-of-base formula to find the logarithm to four decimal places.log8.0 7.4
A. 1.0390 B. 0.9625 C. 0.9250 D. 0.8692
Mathematics
Determine the two equations necessary to graph the ellipse with a graphing calculator.
+ 
= 1
A. y = 
and y = -
B. y = 
and y = - 
C. y = 
and y = -
D. y = 
and y = - 
Mathematics
Use the simple interest formula.Find the interest on $2900 borrowed at an interest rate of 4% for one year.
A. $116 B. $725 C. $1160 D. $3016
Mathematics