Answer:
1 and 7
Step-by-step explanation:
The <em>slope </em>is the number before x. It is identified as m.
Since we know that any variable by itself, without a coefficient, means that there's a 1 in front of it, we can say that 1 is the slope because there's no coefficient shown.
The <em>y-intercept</em> is the number added or subtracted after the slope and x.
Since we have +7 coming after x, we can say that the y-intercept is 7.
:)
The common endpoint is Q. The angle is: angle RQP, angle PQR, or just angle Q
Answer is C. the third option
Plug in
When x = - 6, y = ∛[-(-6) + 2] = ∛8 = 2
When x = 1, y = ∛[-1 + 2] = ∛1 = 1
When x = 2, y = ∛[-2 + 2] = ∛0 = 0
When x = 3, y = ∛[-3 + 2] = ∛-1 = -1
When x = 10, y = ∛[-10 + 2] = ∛-8 = -2
By using some called a calculator
Answer:
The answer is below
Step-by-step explanation:
When you fill your coffee at a gas station, you're supposed to get 8 ounces of coffee with a standard deviation of .7 ounces. A random sample of 50 "8 ounce" coffees is collected and measured and the mean was found to be 7.8 ounces. a) Find a 90% confidence interval. b) Interpret the confidence interval in the context.
Solution:
The confidence = 90% = 0.9, mean (μ) = 7.8 ounces, standard deviation (σ) = 0.7 ounces, sample size (n) = 50
α = 1 - C = 1 - 0.9 = 0.1
α/2 = 0.1 / 2 = 0.05
The z score of α/2 is the same as the z score of 0.45 (0.5 - 0.05) which is equal to 1.65
The margin of error (E) is given by:
The confidence interval = μ ± E = 7.8 ± 0.16 = (7.64, 7.96)
b) This means that we are 90% confident that any selected coffee has a weight between 7.64 ounce to 7,96 ounce