4,6,8,10
1,2,3,4,5
6 foot
9 foot
The explicit formula is an= 4.2* 
.
The correct option is (b)
<h3>What is explicit formula?</h3>
The explicit formula for a geometric sequence is of the form an = a1r-1, where r is the common ratio.
Given sequence: {4.2, 3.57, 3.0345, 2.5793, …}
General formula 
an=4.2* 
an= 4.2*
Hence, an= 4.2*
Learn more about this concept here:
brainly.com/question/18069156
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Answer:
5/6
Step-by-step explanation:
<u>Step 1: Make all fractions have same denominator: 24</u>
3/4 * 6/6 = 18/24
1/4 * 6/6 = 6/24
1/6 * 4/4 = 4/24
<u>Step 2: Plug in the new fractions into the old place</u>
3/4 + (1/4 - 1/6)
18/24 + (6/24 - 4/24)
<u>Step 3: Solve inside parenthesis</u>
18/24 + (6/24 - 4/24)
18/24 + 2/24
<u>Step 4: Add</u>
18/24 + 2/24
20/24
<u>Step 5: Simplify</u>
20/24
10/12
5/6
Answer: 5/6
If the unit you’re doing is similar polygons/triangles, then the tree is 19.5 ft tall. *** I’m from Canada so I’m not quite sure what a yardstick is but I’m assuming it’s a yard which is 3 ft so that’s what I used in my calculations lol
I don't want to Plagrise so i will give the website instead. This website will help you.
https://www.mathsisfun.com/platonic_solids.html
