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2 years ago

Please help!! Thank you :)

Mathematics

1 answer:

Effectus [21]2 years ago

3 0

Answer:

B. f(n) = 8(2)^n-1

Step-by-step explanation:

I used guess and check to answer this.

Check--

First term: 8(2)^1-1 = 8

Second term: 8(2)^2-1 = 16

Third term: 8(2)^3-1 = 32

Fourth term: 8(2)^4-1 = 64

Fifth term: 8(2)^5-1 = 128

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Use a table to identify three equivalent ratios of 2/5.

zlopas [31]

Answer: The simplest form of ratio 6:15=2×3:5×3=2:5

Step-by-step explanation: So, 2:5 is equivalent to 6:15.

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1 year ago

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What makes this statment true 9^-2=? a)81 b)18 c)1/81 d)-1/81

inna [77]

Answer:

The answer is C

Step-by-step explanation:

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2 years ago

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suppose that you have 3000$ to invest. which investment yields the greater return over a 10 year period: 8.04% compounded daily

Ksenya-84 [330]

Answer: Option A: 8.04% compounded daily

Step-by-step explanation:

$A = P\bigg(1+\dfrac{r}{n}\bigg)^{nt}\qquad where\\\\\bullet A = \text{accrued amount (principal plus interest earned)}\\\bullet P = \text{principal (amount invested)}\\\bullet r = \text{rate (in decimal form)}\\\bullet n=\text{number of times compounded in one year}\\\bullet t=\text{time (number of years)}\\\\\\Option\ A:\\A = \text{unknown}\\P=3000\\r=8.04\%\rightarrow 0.0804\\n=\text{daily}\rightarrow 365\\t=10\\\\A=3000\bigg(1+\dfrac{0.0804}{365}\bigg)^{365\times 10}\\\\.\ =\$ 6,702.79$

$Option\ B:\\A = \text{unknown}\\P=3000\\r=8.1\%\rightarrow 0.081\\n=\text{quarterly}\rightarrow 4\\t=10\\\\A=3000\bigg(1+\dfrac{0.081}{4}\bigg)^{4\times 10}\\\\.\ =\$ 6,689.37$

Option A results in the greater amount of money.

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3 years ago

What is 32/23 as a decimal rounded to the nearest hundredth <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B32%7D%7B23%7D%20"

Softa [21]

Answer:

1.39

Step-by-step explanation

32/23 = 1.39130434783

round: 1.39

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3 years ago

Find the equation of a line perpendicular to y-3x=-8 that passes through the point (3,2). Answer in slope-intercept form

Zielflug [23.3K]

Y - 3x = -8
y = 3x - 8...slope here is 3. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So the slope we need is -1/3.

y = mx + b
slope(m) = -1/3
(3,2)...x = 3 and y = 2
now we sub and find b, the y int
2 = -1/3(3) + b
2 = -1 + b
2 + 1 = b
3 = b

so ur perpendicular equation is : y = -1/3x + 3

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2 years ago

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