Answer:
C.) least-square regression
I hope this helps! ^-^
Step-by-step explanation:
90+60+7x+12=180(sim of angles in a triangle)
7x+162=180
7x=180-162
7x=18
x=18/7
x=2.6
AO = 21
BC = 14
OC = radius of the circle = AO = 21
∴ OB = OC + CB = 21 + 14 = 35
<span>Line AB is tangent to circle O at A</span>
∴ AB is perpendicular to AO
∴ Δ OAB is a right triangle at A
Applying Pythagorean theorem
∴ OB² = AO² + AB²
∴ AB² = OB² - AO² = 35² - 21² = 1225 - 441 = 784
∴ AB = √784 = 28
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Answer:
D) $11,499.63
Step-by-step explanation:
Lets use the compound interest formula provided to solve this:

<em>P = initial balance</em>
<em>r = interest rate (decimal)</em>
<em>n = number of times compounded annually</em>
<em>t = time</em>
<em />
First, change 4% into a decimal:
4% ->
-> 0.04
Since the interest is compounded 6 times a year, we will use 6 for n. Lets plug in the values now:


Your answer is D) $11,499.63
21/52
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