Answer:
If it's a worksheet, you'll need to take a picture with a phone and attach the file with the small paperclip button on the post. If it's online, take a screenshot and do the same thing.
idk if that helped, but..
the vertex form is (x+2)^2 - 9 and the vertex is (-2, -9)
Use arithmetic sequence in order to get to answer:
a_n= a₁ rⁿ⁻¹
r is a common ratio, a₁ is the first term and a_n is the summation.
a_n= 1 (2/1)¹⁵⁻¹= 16384 pennies
From Pythagorean Identities <span><span><span>sin^2</span>x</span>+<span><span>cos^2</span>x</span>=1</span>
and from that identities we can have <span><span>sinx</span>+<span>cosx</span>=1</span>, taking <span><span>sinx</span>=1−<span>cosx</span></span> and substitute in the equation
<span><span>sinx</span>+<span>cosx</span>=1</span>
<span><span>(1−<span>cosx</span>)</span>+<span>cosx</span>=1</span>
Remove the parenthesis
<span>1−<span>cosx</span>+<span>cosx</span>=1</span>
cancel <span>cosx</span>
<span>1=1</span>