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2 years ago

PLEASE HELP ILL GIVE BRAINLIEST PLEASE PLEASE PLEEEEEEEAAAAASE

Mathematics

1 answer:

Nesterboy [21]2 years ago

8 0

The recursive formula is $a_n= a_{n-1} -5$ .

<h3>What is Arithmetic Progression?</h3>

A set of numbers is an arithmetic progression (AP) or an arithmetic sequence such that the difference between successive words is unchanged.

Given:

A(n)=(-1)+(n-1)(-5)

A(n) = -1 - 5n + 5

A(n) = 4-5n

n=1

A(1)= 4-5= -1

n=2,

A(2) = -6

n=3

A(3)= -11

Hence, the recursive formula is $a_n= a_{n-1} -5$ .

Learn more about this concept here:

brainly.com/question/20113523

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Citrus2011 [14]

${\huge{\fcolorbox{yellow}{red}{\orange{\boxed{\boxed{\boxed{\boxed{\underbrace{\overbrace{\mathfrak{\pink{\fcolorbox{green}{blue}{Answer}}}}}}}}}}}}}$

(i)

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(ii)

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Step-by-step explanation:

$\underline\red{\textsf{Given :-}}$

height of ball (a) = 10m

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(ii) here we will use the sum formula of geometric progression for finding the total nth impact

$\orange {\sf{S_n = a \times \frac{(1 - {r}^{n} )}{1 - r} }} \\ \sf S_n = 20 \times \frac{1 - ( { \frac{2}{3} })^{n} }{1 - \frac{2}{3} } \\ \sf S_n = 20 \times \frac{1 - {( \frac{2}{3}) }^{n} }{ \frac{1}{3} } \\ \sf S_n = 3 \times 20 \times \{1 - ( { \frac{2}{3}) }^{n} \} \\ \purple{\sf S_n = 60 \{1 - { \frac{2}{3} }^{n} \}}$

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Answer:

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Step-by-step explanation:

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2 years ago

What is the value of x in the equation 1/5x - 2/3y = 30, when y = 15?

AURORKA [14]

Answer:

x = (-150)/49

Step-by-step explanation:

Solve for x:

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