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3 years ago

3x +-11 >-20 Which is greater than or less than

Mathematics

1 answer:

SpyIntel [72]3 years ago

4 0

Hey babe I’m going to be at home;)

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The weights of a sample of college textbooks has a bell-shaped distribution with a mean of 8.1 p o u n d s ( l b s ) and a stand

weeeeeb [17]

Answer:

The interval ( 1,8 ; 14,4 ) will contains 99,7 % of all values

Step-by-step explanation:

For Normal Distribution N ( μ ; σ ) the Empirical Rule establishes that in the intervals:

( μ ± σ ) we find 68,3 % of all values

( μ ± 2σ ) we find 95,4 % of all values

( μ ± 3σ ) we find 99,7 % of all values

Then we have a normal distribution N ( 8,1 ; 2,1 )

3*σ = 3* 2,1 = 6,3

And 8,1 - 6,3 = 1,8 8,1 + 6,3 = 14,4

Then the interval ( 1,8 ; 14,4 ) will contains 99,7 % of all values

4 0

3 years ago

Find the specified nth term of each geometric sequence. a4 = 10, r = 2, n = 9

Degger [83]

Answer:

$a_{n} = 1.25(2)^{n-1}$

Step-by-step explanation:

Geometric Sequence is the sequence in which every digit is the same multiplier of its previous digit.

The formula of Geometric Sequence is: $a_{n} = a_{1}(r)^{n-1}$

We have given value of 4th term i.e.

$a_{4} = a_{1}(2)^{4-1}$

⇒ $10 = a_{1} (2)^{3}$

⇒ $a_{1} = \frac{10}{(2)^{3}}$

⇒ a₁ = 1.25

Hence, the nth term of each sequence is: $a_{n} = 1.25(2)^{n-1}$

7 0

4 years ago

Describe the relationship between the value 6s in 6,600?

posledela

Six thousand and six hundred, I think....

3 0

3 years ago

Read 2 more answers

Evaluate the expression below at x = 3. A. B. C. D.

erica [24]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

How do I these plz help

AnnyKZ [126]

1. Answer: 60 minutes

Step-by-step explanation:

Faucet A: 140 milliliters/min = 0.140 liters/min

Faucet B: 100 milliliters/min = 0.100 liters/min

Let x represent the amount of time

Faucet A + Faucet B = Full fish tank

0.140x + 0.100x = 14.4

0.240x = 14.4

x = 60

**************************************************************************

2. Answer: 40 minutes

Step-by-step explanation:

Quantity currently in tank: 4.8 liters

Water In: 150 milliliters/min = 0.150 liters/min

Water Out: 270 milliliters/min = 0.270 liters/min

Let x represent the amount of time

Qty in tank + In - Out = Empty fish tank

4.8 + 0.15x - 0.27x = 0

- 0.27x = -4.8

x = 40

7 0

3 years ago