Calculate.7 ? 5 - (23 - 5) ÷ 2 - (9 - 7)
A. 1
B. 15
C. 24
D. 10
Answer: C
Mathematics
You might also like to view...
Give the degree measure of ?.? = cot-1 
A. 30° B. -30° C. 60° D. 45°
Mathematics
Determine if the sequence is geometric. If the sequence is geometric, find the common ratio.-7, -11, -15, -19, . . .
A. yes, -12 B. no C. yes, 4 D. yes, -4
Mathematics
Solve.If an earthquake measured 
on the Richter scale, what was the approximate intensity of the earthquake in terms of I0? The magnitude on the Richter scale of an earthquake of intensity I is 
A. 1,300,000 ? I0 B. 450 ? I0 C. 1,000,000.0 ? I0 D. 130,000 ? I0
Mathematics
Solve the logarithmic equation.loga (x - 2)= 0
A. -1 B. 3 C. 2 D. ?
Mathematics