I can help! whats the question?
Answer:
To answer you question, we need the confidence internals formula, μ±Zc*(σ/
); N is the 20 psychology students, 0.5 the desviation standar and 4.3 is the medium based on national data, every fact in years.
Step-by-step explanation:
You need to consult the Zc value, you can find this table attached in this question; for 95%, we have a Zc value of 1.96.
Next step replace values: 4.3±1.96*(0.5/
) = 4.3±0.22 (rounding the result)
So, the confidence interval are:
4.08cm≤X≤4.52cm
Hope this helps.
8x^2 +13x -6 =(8x-3)(x+2)
Answer:
A. Line <em>q</em> slope is undefined and x-axis has a slope of 0
Step-by-step explanation:
These ordered pairs have identical x-coordinates, therefore the <em>rate of</em><em> </em><em>change</em><em> </em>[<em>slope</em>]<em> </em>is undefined.
I am joyous to assist you anytime.
Answer: 193.3125
Step-by-step explanation:
It deleted my entire explanation um-
Anyways, calculate the area of the rectangle, length x width (7 * 15) and the semicircle (i did pi times radius squared and halved it to get the semicircle)
Basically, 105 plus the semicircle is 193.
