3 years ago

A. 60°

Mathematics

2 answers:

Tju [1.3M]3 years ago

7 0

Answer:

60° is the value of y....

nordsb [41]3 years ago

7 0

The answer is A!! because the total had to be 180° so if you add 60+60 that equals 120, so then Y would be 60

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zubka84 [21]

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Assuming that the equation is in the form $y = ab^x$ , we can plug in points to get our equation. For ease, let's use (1,18) and (2,21). When plugging these points in, we get $18 = ab^1, 21 = ab^2$ . Now let's divide the equations to get rid of $a$ : $\frac{21 = ab^2}{18 = ab^1} = \frac{21}{18} = \frac{7}{6} = b$ . Now that we have $b$ , we can plug in the value we just calculated to solve for $a$ : $18 = a(\frac{7}{6} )^1$ , and solving for $a$ , we get $a = \frac{108}{7}$ .

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This equation in decimal form (rounded to the nearest thousandth) is $f(x) = 15.429(1.167)^x$ .

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