Evaluate the root function at the given x-value. Round to the nearest hundredth when appropriate.f(x) = 
, x = -28
A. 3
B. -3
C. -4
D. Undefined
Answer: B
Mathematics
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Solve by the elimination method.
+ 
= 32
- 
= 40
A. {(100, 27)} B. {(-100, -27)} C. {(-100, 27)} D. {(100, -27)}
Mathematics
Solve the problem using your calculator.The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. What is the correlation coefficient?
A. 0.678 B. -0.224 C. -0.678 D. 0.224
Mathematics
Decompose v into two vectors v1 and v2, where v1 is parallel to w and v2 is orthogonal to w.v = 2i - 2j,
w = -3i - j
A. v1 = 
i - 
j, v2 = 
i - 
j
B. v1 = 
i - 
j, v2 = - 
i - 
j
C. v1 = 
i - 
j, v2 = 
i - 
j
D. v1 = 
i - 
j, v2 = 
i - 
j
Mathematics
Graph the function f(x)=-2x²-2.
 figure 1.png)
 figure 2.png)
 figure 3.png)
Mathematics