Help asap 100 points There is a way to estimate the height of a tree without having to climb it with a tape measure. Instead, place a
mirror on the ground and stand where you can see the reflection of the top of the tree in the mirror.
1: Use this example to demonstrate:
Points M and G are labeled and represent the Mirror and the point where the tree touches the ground.
a: Label points: T at the top of the tree, E at the person’s eye level, and F at the person’s feet
b: Explain how you can create two similar triangles using the AA similarity postulate. You can sketch the triangles
separately if you would like (hint: if the person and tree stand up straight, they form 90-degree angles at the
ground):
c: If EF = 60 inches, FM = 80 inches, and MG = 200 inches, how tall is the tree? Show all work:

2: Here is a way to use similar triangles to estimate the width of a river. Kayla marks some points on the ground.
Point A is directly across the river from point G (tree). She walks 15 feet and marks point B, then walks 4 more feet
and marks point C. (You might want to label those distances in the picture) Kayla turns exactly 90 degrees and
walks until he makes a straight line from point D through point B and straight to G.
a: First, verify the triangles are indeed similar by completing this mini-proof:
Statement Reason
∠_ ≅ ∠_ All right angles are congruent
∠DBC ≅ ∠GBA _
△DBC is similar to △GBA _
b: If Kayla measures 3 feet from point C to point D, use similar triangles to determine the width of the river.
Show Work:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

what are you trying to solve here

step-by-step explanation:

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).