A high school student spends an average of 6 hours (#=6) on their phone a day with a standard deviation of 2.5 hours (a= 2.5). If samples of size 16 (n =16) were taken from the population what would be the standard deviation of the sample means () ? 0.156 0.500 0.625 2.500

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A: Given y=f(x) is odd polynomial  a polynomial is said to be odd if f(-x)=-f(x)  

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A: Given

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Q: 5. SIMPLIFY b. VE 5 3 а.

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A: Find your answer below 

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Q: 1. Factor the following fully d) 12x2 + 28.x – 24 e) 12x2 + 42x + 18 f) 12x? – 48

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A: Given  1272x-3=19 To find value of x:

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A: To find A, find the inverse of A-1

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A: calculation of above requirement are as follows

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Q: In circle C with m∠BCD=46 and BC=3 units, find the length of arc BD. Round to the nearest hundredth.

A: This question can be solved by using the formula Length of arc of circle=2πrθ360

Q: 3.) Solve the system of simultaneous equations using Gauss-Jordan method 20х — 9х2 + 15х33 354 - 9x1...

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Q: Prove the following identities: sec(0) + tan(0) (a) cot(0) + cos(0) cos?(x) tan(0) sec(0)

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Q: 1 Given h(x) . x+1• find h-(x), @ n-(x) = X-1 A B ® h-(x) = 1+* h-(x) = 1-x 1-x O n-(x)= 1=×

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Q: Given the function h(x) = x² – 4, x2 0, which of the following is true about h? A The function is no...

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Q: 2.4T, + 3.6T, + 4.8T3 – 1.2 = 0 -3.9T, + 1.37, – 6.57, – 2.6 = 0 1.7T, + 11.9T, + 8.5T3 = 0

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Q: 1 -2 0 3 2 A = 1 1 -5 -1 %3D 0 2 3 4 2 1 3

A: to find out the determinant of the matrix by using the cofactor expansion method.