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3 years ago

I need help I don’t understand it and I’m dumb, so help please ??

Mathematics

2 answers:

nasty-shy [4]3 years ago

4 0

Answer:

The answer is D: 37%

Ignore this answer its wrong, I think. Yeah you're gonna need someone else to figure this out. How do you delete answers on here?

saul85 [17]3 years ago

3 0

It is 37% percent hope it helps

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For each of the finite geometric series given below, indicate the number of terms in the sum and find the sum. For the value of

kotykmax [81]

Answer:

Number of term N = 9

Value of Sum = 0.186

Step-by-step explanation:

From the given information:

Number of term N = $3 (0.5)^{5} + 3 (0.5)^{6} + 3 (0.5)^{7} + \cdots + 3 (0.5)^{13}$

Number of term N = $3 (0.5)^{5} + 3 (0.5)^{6} + 3 (0.5)^{7} +3 (0.5)^{8}+3 (0.5)^{9} +3 (0.5)^{10} +3 (0.5)^{11}+3 (0.5)^{12}+ 3 (0.5)^{13}$

Number of term N = 9

The Value of the sum can be determined by using the expression for geometric series:

$\sum \limits ^n_{k=m}ar^k =\dfrac{a(r^m-r^{n+1})}{1-r}$

here;

m = 5

n = 9

r = 0.5

Then:

$\sum \limits ^n_{k=m}ar^k =\dfrac{3(0.5^5-0.5^{9+1})}{1-0.5}$

$\sum \limits ^n_{k=m}ar^k =\dfrac{3(0.03125-0.5^{10})}{0.5}$

$\sum \limits ^n_{k=m}ar^k =\dfrac{(0.09375-9.765625*10^{-4})}{0.5}$

$\sum \limits ^n_{k=m}ar^k =0.186$

6 0

3 years ago

Help plzzzz math ppl

GrogVix [38]

Divide by rt on both sides
$a) \: p = \frac{i}{rt}$
Subtract 2L from both sides
$b) \: m = 9 - 2l$
Subtract 9 then multiply by 4
$c) \: x = 4(2k - 9) = 8k - 36$ Multiply by K
$d) \: p = rk$

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3 years ago

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9b+5=23 solve equation

yarga [219]

Steps to solve:

9b + 5 = 23

~Subtract 5 to both sides

9b = 18

~Divide 9 to both sides

b = 9

Best of Luck!

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3 years ago

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tangare [24]

Answer: 1

−

(

−

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Step-by-step explanation:

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3 years ago

1)When adding two negative numbers, _________ the absolute value of the numbers and keep the negative sign.

butalik [34]

1) add.

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2 years ago

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