what is this math equation ;9-x/5 =3 for x

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• To assess the impact of undercoverage, nonresponse, and other sampling errors, one can compare sample data with known population figures. In Canada, approximately 24% of the population aged over 15 are first-generation, having been born outside of the country. Consequently, in random samples of 1000 individuals aged over 15, the number of first-generation Canadians (X) should conform to a binomial distribution with n = 1000 and p = 0.24. (a) The mean (μ) and standard deviation (σ) of X are: Mean (μ) = np = 1000 × 0.24 = 240 Standard deviation (σ) = √(np(1 - p)) = √(1000 × 0.24 × 0.76) ≈ 13.8564. (b) To calculate the probability of the sample containing between 210 and 270 first-generation Canadians using normal approximation: First, verify the appropriateness of the normal approximation by ensuring: 1. np ≥ 5 2. n(1 - p) ≥ 5 Since np = 240 and n(1 - p) = 760, both criteria are met. Next, determine the z-scores for 210 and 270: Z for 210 = (210 - μ) / σ = (210 - 240) / 13.8564 ≈ -2.166 Z for 270 = (270 - μ) / σ = (270 - 240) / 13.8564 ≈ 2.166 Then, using a standard normal distribution table or calculator, find the probabilities for these z-scores and calculate the probability that X is between 210 and 270. Probability(X is between 210 and 270) ≈ P(Z < 2.166) - P(Z < -2.166).
• Use substitution to solve the linear system of equations x = 4. -y = 1/2x (4, -2) (-2, 4) (4, 2) (2, -4)
• 5x +20+3x=360 what is x
• You find an old bathroom scale at a garage sale on your way home from getting a physical exam from your doctor. You step on the scale, and it reads 135 lb. You step off and step back on, and it reads 134 lb. You do this three more times and get readings of 135 lb, 136 lb, and 135 lb. a. What is the precision of this old bathroom scale? Would you consider this adequate precision for the type of measurement you are making? b. The much more carefully constructed and better-maintained scale at the doctor's office reads 126 lb. Assuming that you are wearing the same clothes that you wore when the doctor weighed you, do you think the accuracy of the old bathroom scale is high or low?
• Point P is located at (4.3 cm, 3.6 cm) in a two-dimensional Cartesian coordinate system. Calculate the angle in degrees between the x-axis and the line connecting the origin to point P.
• Determine whether the quadrilateral is a parallelogram using the specified method. D(-8, 1), E(-3, 6), F(7, 4), G(2, -1)
• The runner's speed increased steadily over the first two seconds of the race. The table shows the elapsed time and corresponding speed: Time (sec): 0 | 0.5 | 1 | 1.5 | 2 Speed (ft/sec): 0 | 5.1 | 9.3 | 12.5 | 15.6 To estimate the distance traveled during these two seconds, we use the speed at the end of each interval: Distance traveled = Sum of (Average speed of the interval * Time duration of the interval) From 0 to 0.5 seconds: Average speed = (0 + 5.1) / 2 = 2.55 ft/sec Distance = 2.55 ft/sec * 0.5 sec = 1.275 ft From 0.5 to 1 second: Average speed = (5.1 + 9.3) / 2 = 7.2 ft/sec Distance = 7.2 ft/sec * 0.5 sec = 3.6 ft From 1 to 1.5 seconds: Average speed = (9.3 + 12.5) / 2 = 10.9 ft/sec Distance = 10.9 ft/sec * 0.5 sec = 5.45 ft From 1.5 to 2 seconds: Average speed = (12.5 + 15.6) / 2 = 14.05 ft/sec Distance = 14.05 ft/sec * 0.5 sec = 7.025 ft Total distance traveled = 1.275 ft + 3.6 ft + 5.45 ft + 7.025 ft Total distance traveled = 17.35 ft None of the provided choices (A through E) matches the estimated distance of 17.35 ft calculated using the method provided. Please verify the choices or the estimation method.
• The corrected and concise version: a. No, because a p-value of 0.037 is less than 0.05, we fail to reject the null hypothesis. The claim corresponds to the alternative hypothesis, so it is not supported. b. Yes, because a p-value of 0.037 is less than 0.05, we reject the null hypothesis. The claim corresponds to the alternative hypothesis, so it is supported. c. No, because a p-value of 0.037 is less than 0.05, we reject the null hypothesis. The claim corresponds to the null hypothesis, so it is not supported. d. Yes, because a p-value of 0.037 is less than 0.05, we fail to reject the null hypothesis. The claim corresponds to the null hypothesis, so it is supported. However, the correct statement depends on the null and alternative hypothesis definitions, which are not provided in the question. Usually, the department's claim would be the null hypothesis (mean wait time is more than 6 minutes), and the alternative hypothesis would be that the mean wait time is not more than 6 minutes. If that's the case, the correct statement should be: b. Yes, because a p-value of 0.037 is less than 0.05, we reject the null hypothesis. The department's claim, which serves as the alternative hypothesis in this context, is supported.
• Placing grouping symbols to make this equation true 5+70÷5×2=30
• Find the equation of a line which is perpendicular to y = 1/2x - 5 and goes throught the point (0, 0). Write your answer in the form y=mx+c.