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3 years ago

PLEASE HELP IM EXTREMELY CONFUSED

Mathematics

2 answers:

tankabanditka [31]3 years ago

8 0

The height of the platform would be the last part of the equation

45 feet

Hunter-Best [27]3 years ago

8 0

The height would be 45 because the other numbers have t's, which are seconds.
I hope this helps you!

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The explicit formula for the geometric sequence Negative one-ninth, one-third, negative 1, 3, negative 9, ellipsis is f (x) = ne

storchak [24]

Answer:

Common ratio, r=-3

Recursive Formula

$f(n)=-3f(n-1),$ $n\geq 2\\f(1)=-\dfrac{1}{9},$

Step-by-step explanation:

The formula for the geometric sequence: $-\dfrac{1}{9} ,\dfrac{1}{3}, -1,3,-9,\cdots$ is given as:

$f(x)=-\dfrac{1}{9}(-3)^{x-1}$

Common Ratio

Dividing the next terms by the previous terms, we obtain:

$\dfrac{1}{3} \div -\dfrac{1}{9} = \dfrac{1}{3} \times -9 =-3\\3 \div -1 =-3\\-9 \div 3 =-3$

Therefore, the common ratio of the sequence, r=-3

Recursive Formula

We observe that the next term, $f(n)$ is obtained by the multiplication of the previous term. f(n-1) by -3.

Therefore, a recursive formula for the sequence is:

$f(n)=-3f(n-1),$ $n\geq 2\\f(1)=-\dfrac{1}{9},$

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3 years ago

12. Convierte estas fracciones impropias en números mixtos:

Vinvika [58]

¡Hola! Voy a hacer el mismo proceso para cada uno.

Primero, restaré el denominador del numerador hasta que sea una fracción propia. También simplificaré si es necesario.

Luego, "volveré a sumar los números enteros al número" como un número mixto.

A. 15/7

$\displaystyle \frac{15-7-7}{7} =\frac{1}{7}$

$\displaystyle \frac{1}{7}+1+1=$

$\displaystyle 2\frac{1}{7}$

B. 16/6

$\displaystyle \frac{16-6-6}{6} =\frac{4}{6}=\frac{2}{3}$

$\displaystyle \frac{2}{3}+1+1=$

$\displaystyle 2\frac{2}{3}$

C. 12/5

$\displaystyle \frac{12-5-5}{5} =\frac{2}{5}$

$\displaystyle \frac{2}{5}+1+1=$

$\displaystyle 2\frac{2}{5}$

D. 48/7

$\displaystyle \frac{48-7-7-7-7-7-7}{7} =\frac{6}{7}$

$\displaystyle \frac{6}{7}+1+1+1+1+1+1=$

$\displaystyle 6\frac{6}{7}$

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Svetlanka [38]

56% of 150 = 84

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Answer is C.9(3r-4) and 27r-36

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