Answer:
∠ ABC = 37°
Step-by-step explanation:
Angles on the circle subtended by the same arc are congruent.
∠ ABC and ∠ ADC are angles on the circle subtended by arc AC , then
∠ ABC = 37°
Answer:
yes, it is arithmetic as the common difference is -8
Simple Interest Formulas and Calculations:
Calculate Total Amount Accrued (Principal + Interest), solve for A. A = P(1 + rt)
Calculate Principal Amount, solve for P. P = A / (1 + rt)
Calculate rate of interest in decimal, solve for r. r = (1/t)(A/P - 1)
Calculate rate of interest in percent. ...
Calculate time, solve for t.
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4x+6y=8
3x+y=9
y = 9 - 3x
4x + 6(9-3x) = 8
4x + 54 - 18x = 8
14x = 46
x = 23/7
y = 9 - 3(23/7)
y = 9 - 69/7
y = - 6/7