Answer:
a 4
Step-by-step explanation:
4x5=15jddjshshhshsjsjsjsjsjejejsjejejeejjssjsj
Each group of 2 nickels and 1 quarter has a value of $0.35. Rachelle has $6.30/$0.35 = 18 such groups.
Rachelle has 18 quarters and 36 nickels.
Law of sines can be used to solve this problem:
(note - let x represent the missing side length.)
1. set up proportion.
sin 90°/25 = sin 55<span>°/x
2. solve.
(x) sin 90</span>° = (25) sin 55<span>°
(x) sin 90 </span>°/sin 90° = (25) sin 55° / sin 90<span>°
</span>
x = 20.4788011072
rounded to nearest tenth = 20.5
I got 16, you may review the image I've attached to see how I got my answer.
3x^2 - 4x
Im not quite sure what your asking, so I hope this helps!