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katrin2010 [14]
3 years ago
11

PLEASE HELP ASAP!! VERY IMPORTANT!!!!! (NUMBER 15!!)

Mathematics
1 answer:
maria [59]3 years ago
5 0
The answer is c cause the answer is 16,741.55ft^2 and c is the closest to it
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Help please !!<br> The graph of the invertible function f is shown on the grid below.
vivado [14]

Answer:

4

Step-by-step explanation:

→ We go up the y axis to 6 and read of the x coordinate which is 4. This is because an inverse function does the the opposite i.e.  if f ( x ) = y

f⁻¹ ( y ) = x.

4 0
2 years ago
NEED HELP ASAP, I'LL GIVE BRAINLIEST. (EXPLANATION NEEDED) ALGEBRA​
katrin [286]

31x^2 +14y -15x +3\\\\=x(31x-15)+14y+3

4 0
2 years ago
Solve the following ODE's: c) y* - 9y' + 18y = t^2
Nastasia [14]

Answer:

y = C_1e^{3t}+C_2e^{6t} + \dfrac{1}{18}(t^2+\frac{2t}{6} + \frac{2}{36}+\frac{2t}{3}+\frac{2}{18}+\frac{2}{9})

Step-by-step explanation:

y''- 9 y' + 18 y = t²

solution of ordinary differential equation

using characteristics equation

m² - 9 m + 18 = 0

m² - 3 m - 6 m+ 18 = 0

(m-3)(m-6) = 0

m = 3,6

C.F. = C_1e^{3t}+C_2e^{6t}

now calculating P.I.

P.I. = \frac{t^2}{D^2 - 9D +18}

P.I. = \dfrac{t^2}{(D-3)(D-6)}\\P.I. =\dfrac{1}{18}(1-\frac{D}{3})^{-1}(1-\frac{D}{6})^{-1}(t^2)\\P.I. =\dfrac{1}{18}(1-\frac{D}{3})^{-1}(1+\frac{D}{6}+\frac{D^2}{36}+....)(t^2)\\P.I. =\dfrac{1}{18}(1-\frac{D}{3})^{-1}(t^2+\frac{2t}{6} + \frac{2}{36})\\P.I. =\dfrac{1}{18}(1+\frac{D}{3}+\frac{D^2}{9}+....)(t^2+\frac{2t}{6} + \frac{2}{36})\\P.I. =\dfrac{1}{18}(t^2+\frac{2t}{6} + \frac{2}{36}+\frac{2t}{3}+\frac{2}{18}+\frac{2}{9})

hence the complete solution

y = C.F. + P.I.

y = C_1e^{3t}+C_2e^{6t} + \dfrac{1}{18}(t^2+\frac{2t}{6} + \frac{2}{36}+\frac{2t}{3}+\frac{2}{18}+\frac{2}{9})

7 0
2 years ago
There are 300 pets in the pet store. 25% of the pets are dogs. How many dogs are in the pet store?
ser-zykov [4K]
300/2=150
150/2= 75
75 is 25% of the stores pets
So 75 is your answer :)
8 0
2 years ago
Read 2 more answers
5/14 divided by 3/4, what's the answer
DiKsa [7]
Rule:  (a/b)/(c/d)=(a/b)*(d/c)

(5/14)/(3/4)

(5/14)(4/3)

(5*4)/(14*3)

20/42

10/21
3 0
3 years ago
Read 2 more answers
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