Kym used the integer tiles to find the sum of (–3) + 6. the line showed that the answer is negative 3. which of the following does kym need to do to get the correct answer? a. add three more negative tiles b. remove the zero pairs c. add three more positive tiles d. remove three positive tiles

(fog)(x) if f(x)=x^2- 4 and g(x)=x^2 + 2 x, f(g(x))= f(x^2+2x) (x^2+2x)^2-4 (x^2+2x)(x^2+2x)-4 (x^4+2x^3+5x+4x^2)-4 x^4+2x^3+4x^2+5x-4 what am i doing wrong

Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t. inv.2t to find the value of t for the interval calculation.

I. given that abcde = fghij, fill in the blanks. 1. ab = = 4cm 2.bc = = 4cm 3.ed = = 7cm 4.ea = 5.aed = 6.bae = 7.dcb = 8.given that klmnop = uvwxyz k = 70°, l = 80°, m = 90°, n = 100°, ml = 5cm, and op = 6cm, find 9.u = 10.w = 11. yz = 12.wv = _5_cm (answered)