Answer:
H) 24
Step-by-step explanation:
24 is the only number that is divisible by 3.
CHECK:
3 x 8 : 4 x 8
24:32✔
(<em>You</em><em> </em><em>can</em><em> </em><em>try</em><em> </em><em>dividing</em><em> </em><em>'</em><em>3</em><em>'</em><em> </em><em>by</em><em> </em><em>the</em><em> </em><em>other</em><em> </em><em>numbers</em><em> </em><em>to</em><em> </em><em>also</em><em> </em><em>check</em><em> </em><em>your</em><em> </em><em>answer</em>)
Hope this helped ^^
Its a function of the square of the sides. = 36:121
<h3>
Answer: Choice B</h3>
No, this is not a plausible value for the population mean, because 5 is not within the 95% confidence interval.
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Explanation:
The greek letter mu is the population mean. It has the symbol
which looks like the letter 'u' but with a tail at the front or left side.
The question is asking if mu = 5 is plausible if the researcher found the 95% confidence interval to be 5.2 < mu < 7.8
We see that 5 is <u>not</u> in that interval. It's a bit to the left of 5.2
Since mu = 5 is not in the interval, it's not a plausible value for the population mean.
Have we ruled it out with 100% confidence? No. Such a thing is not possible. There's always room for (slight) error. The researcher would need to do a census to be fully confident; however, such practices are very time consuming and expensive. This is the main reason why statistics is important to try to estimate the population with a sample.
Answer:
-1
Step-by-step explanation:
m = -7 / 7 = -1 / 1 = -1
By "y = −9x2 − 2x" I assume you meant <span>y = −9x^2 − 2x (the "^" symbol represents exponentiation).
Let's find the first derivative of y with respect to x: dy/dx = -18x - 2. This is equivalent to the slope of the tangent line to the (parabolic) curve. Now let this derivative (slope) = 0 and solve for the critical value: -18x - 2 = 0, or
-18x = 2. Solving for x, x = -2/18, or x = -1/9.
When x = -1/9, y = -9(-1/9)^2 - 2(-1/9). This simplifies to y = -9/9 + 2/9, or
y = -7/9.
The only point at which the tangent to the curve is horiz. is (-1/9,-7/9).</span>