Find the standard deviation. Round to one more place than the data.22, 29, 21, 24, 27, 28, 25, 36
A. 1.6
B. 4.8
C. 4.2
D. 2.8
Answer: B
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Provide an appropriate response.Given log10 2 = 0.3010 and log10 3 = 0.4771, find log10 12 without using a calculator.
A. 0.5677 B. 1.2552 C. 0.2872 D. 1.0791
Decide if a triangle exists that satisfies the given conditions.? = 49°, ? = 26°, b = 6
A. No B. Yes
Secret messages can be encoded by using a code and an encoding matrix. If we have the code:
and an encoding matrix E, we can encode a message by taking every two letters of the message, converting them to their corresponding numbers, creating a 2 × 1 matrix, and then multiplying each two numbers by E. The message may be unscrambled with a decoding matrix which is the inverse of the coding matrix, E-1. Determine if the given pair of encoding matrices are inverses of each
other.
and 
What will be an ideal response?
Add or subtract as indicated. Write your answer in the form a + bi.(4 + 10i) - (10 + 4i) + (7 + 10i)
A. -13 + 16i B. 1 + 24i C. -13 - 4i D. 1 + 16i