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serious [3.7K]
3 years ago
11

A 6-foot pine tree was planted and grew 2 feet each year Write an algebraic expression for the height after y years?

Mathematics
1 answer:
gladu [14]3 years ago
6 0
6+2y, since the tree is already 6 feet, it grows 2 feet per year so you add 2 feet to the 6 feet every year
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2X+4=20+5X<br>A)1/2 B)-1/2 C)2 D)-2​
Nookie1986 [14]

Answer:

It seems that your options aren't correct as the right answer is -5.3333... (recurring)

Step-by-step explanation:

1)  2x + 4 = 20 + 5x   (subtract by the smallest unknown)

  -2x                  -2x

2)  4        = 20 + 3x

    -20      -20    (now subtract each side by 20 as we want to leave the unknown on one side and another number on the other side.

3) -16       = 3x   (Divide each side by 3)

   ÷3        = ÷3

4) -5.33333... = x

<h3>Now we have found x but if you're unsure you can substitute to see if your answer is correct.</h3><h3>2 x -5.3333 + 4 = -6.6666</h3><h3>20 + 5 x -5.3333= -6.6665</h3><h3>Our answer is correct! (When answers are rounded, it is equal to the same thing).</h3>
7 0
3 years ago
What is the area of a regular octagon with a side length of 6 mm and an apothem length of 7.243 mm? Round your answer to the nea
Harlamova29_29 [7]
OCTA=8, an octagon has 8 sides, thus if one side is 6mm, then all sides, namely the perimeter, is 6+6+6+6+6+6+6+6, or 48.

now, we know what the apothem is.

\bf \textit{area of a regular polygon}\\\\&#10;A=\cfrac{1}{2}ap~~&#10;\begin{cases}&#10;a=apothem\\&#10;p=perimeter\\&#10;-------\\&#10;p=48\\&#10;a=7.243&#10;\end{cases}\implies A=\cfrac{1}{2}(7.243)(48)
5 0
3 years ago
It's due in 20 minutes!!
slega [8]

Answer:

A. 18 sit-ups in one minute

B. 30 doors per hour

D. 18 words per minute

F. $30 per night

C. 3.5 miles per hour

E. $10.50 per pair of pants

Step-by-step explanation:

A. 36/2 = 18

B. 15 * 2 = 30

D. 72/4 = 18

F. 150/5 = 30

C. 10.5/3 = 3.5

E. 31.50/3 = 10.50

7 0
2 years ago
Read 2 more answers
Class 324 went apple picking and collected 64
garri49 [273]

Answer:

8 bags of apples

Step-by-step explanation:

first you do 64 apples divided by 8 bags

then you would get the answer of 8 bags of apples given to 8 different teachers

4 0
3 years ago
Un elev a depus la banca suma de 250 lei. Știind ca banca oferă dobânda anuala de 1%,iar stația impozitează dobânda cu 16%,aflat
laila [671]

Răspuns:

292,50

Explicație pas cu pas:

Dobânda totală% = (1% + 16%) = 17% = 17/100 = 0,17

Suma principală depusă, P = 250

Suma totală, A după 1 an poate fi calculată astfel:

A = P (1 + rt)

Unde ; r = rata dobânzii; t = timp

A = 250 (1 + (0,17 * 1))

A = 250 (1,17)

A = 292,5

4 0
3 years ago
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