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2 years ago

F(n + 1) = –10f(n). If f(1) = 1, what is f(3)? 3 –30 100 –1,000

Mathematics

1 answer:

Alborosie2 years ago

3 0

Answer:

900 jadi 3 -30 =27 100-1.000 =900

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6. The area of a rectangular sheet of paper is 300 cm squared. The length is 5 cm more than the width

konstantin123 [22]

Answer:

Step-by-step explanation:

width = x

length= x + 5

a) x + 5

b) x * (x+5) = 300

x^2 + 5x = 300

x^2 + 5x - 300 = 0

Δ = 25 + 1200 = 1225

width = (-5 + 35)/2 = 15 cm

lenght = 15 + 5 = 20 cm

8 0

2 years ago

Read 2 more answers

what is the probability of seeing a sample mean for 21 observations less or equal to the sample mean that we observed

kramer

Answer:

$P(x \le 21) = 0.69146$

Step-by-step explanation:

The missing parameters are:

$n = 64$ --- population

$\mu = 20$ --- population mean

$\sigma = 16$ -- population standard deviation

Required

$P(x \le 21)$

First, calculate the sample standard deviation

$\sigma_x = \frac{\sigma}{\sqrt n}$

$\sigma_x = \frac{16}{\sqrt {64}}$

$\sigma_x = \frac{16}{8}$

$\sigma_x = 2$

Next, calculate the sample mean $\bar_x$

$\bar x = \mu$

So:

$\bar x = 20$

So, we have:

$\sigma_x = 2$

$\bar x = 20$

$x = 21$

Calculate the z score

$x = \frac{x - \mu}{\sigma}$

$x = \frac{21 - 20}{2}$

$x = \frac{1}{2}$

$x = 0.50$

So, we have:

$P(x \le 21) = P(z \le 0.50)$

From the z table

$P(z \le 0.50) = 0.69146$

So:

$P(x \le 21) = 0.69146$

4 0

2 years ago

How would you convert a measurement given in fluid onuces into pints

Alexus [3.1K]

Multiply the quantity in ounces (including the unit) by the fraction

(1 pint) / (16 fl oz) .

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3 years ago

Hey please help this is due today

Aleksandr [31]

Answer:

100

Step-by-step explanation:

Write in an equation:

4=4%x, then divide 4% from both sides, and then you get 100.

7 0

1 year ago

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Need help on the last question

Ray Of Light [21]

Answer: no thank you

Step-by-step explanation:

For 5 free points

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2 years ago