Solve the problem.The inequality |T - 40| ? 7.1 describes the range of monthly average temperatures T in degrees Fahrenheit at a City X. (i) Solve the inequality. (ii) If the high and low monthly average temperatures satisfy equality, interpret the inequality.
A. -47.1 ? T ? 54.2; The monthly averages are always within 
B. 32.9 ? T ? 47.1; The monthly averages are always within 
C. 37.3 ? T ? 42.7; The monthly averages are always within 
D. -42.7 ? T ? 45.4; The monthly averages are always within 
Answer: B
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Translate the argument into symbolic form, then use the table below to determine whether the argument is valid or invalid. Indicate valid/invalid and identify the type of answer.VALID ARGUMENTS
INVALID ARGUMENTS
If I take a taxi, I will get to the museum faster.
? If I take a taxi, I will have more time to enjoy the paintings.
What will be an ideal response?
Use the indicated model of multiplication to illustrate the statement.7 × 1 = 1 × 7; number-line model
A. 7 × 1 
1 × 7 
B. 7 × 1 
1 × 7 
find E when P = 3 W and R = 300 ê.
E2 If P = ÄÄ R a. 900 v b. 10 v c. 100 v d. 130 v e. 30 v
Provide an appropriate response.Find the special product: (a + 9)2
A. a2 +98a + 81 B. a2 - 81 C. a2 + 81 D. a2 + 18a + 81