The Jackson triplets, Jenny, John, and James, are in different algebra classes at City High. On their final exams, Jenny scored 77 on a test with a mean of 71 and a standard deviation of 11; John scored 79 on a test with a mean of 74 and a standard deviation of 10; and James scored 75 on a test with a mean of 70 and a standard deviation of 10. Who had the best score?
What will be an ideal response?
Jenny
Mathematics
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Find the x-intercepts (if any) for the graph of the quadratic function.f(x) = -(x + 1)2 + 9
A. -2 and 4 B. -4 and 2 C. 1 and - 9 D. none
Mathematics
Provide an appropriate response. Which statement illustrates the correct use of the distributive property of multiplication?
A. 5(11 + 9) = 100 B. 5(11 + 9) = 55 + 9 C. 5(11 + 9) = 5 + (20) D. 5(11 + 9) = 55 + 45
Mathematics
Solve the equation. If the equation is an identity or a contradiction, state this.2(x + 1) - 6(x + 1) = -4x - 4
A. x = -1
B. identity, 
C. x = 2
D. contradiction, ?
Mathematics
Add.
A. 131,353 B. 129,253 C. 130,353 D. 130,253
Mathematics