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3 years ago

9 4/5 as a decimal help out plz

Mathematics

2 answers:

Helen [10]3 years ago

5 0

9 4/5 as a decimal is 9.8

goblinko [34]3 years ago

5 0

Answer: 9.8

Explanation: So first you divide the fraction by its top number by its bottom number and that would be 0.8, and for the 9, the whole number stays as the whole number in the decimal so then it would be 9.8

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Svet_ta [14]

Answer:

x ≤ 2

Step-by-step explanation:

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3 years ago

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What are the first three terms of the sequence modeled by the recursive function an=1/2an-1 when a1=1?

loris [4]

Answer:

Option A is correct that is $1,\frac{1}{2},\frac{1}{4}$

Step-by-step explanation:

We have been given a formula $a_n=\frac{1}{2}\cdot a_n-1$

$a_1=1$

We will put values of n in $a_n=\frac{1}{2}\cdot a_n-1$

when n=2 we get

$a_2=\frac{1}{2}\cdot a_2-1$

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when n=3

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$\Rightarrow a_3=\frac{1}{4}$

Therefore, Option A is correct that is $1,\frac{1}{2},\frac{1}{4}$

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3 years ago

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Suppose the sediment density (g/cm3 ) of a randomly selected specimen from a certain region is known to have a mean of 2.80 and

Irina18 [472]

Answer:

0.918 is the probability that the sample average sediment density is at most 3.00

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 2.80

Standard Deviation, σ = 0.85

Sample size,n = 35

We are given that the distribution of sediment density is a bell shaped distribution that is a normal distribution.

Formula:

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$P( x \leq 3.00) = P( z \leq \displaystyle\frac{3.00 - 2.80}{0.1437}) = P(z \leq 1.3917)$

Calculation the value from standard normal z table, we have,

$P(x \leq 3.00) = 0.918$

0.918 is the probability that the sample average sediment density is at most 3.00

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3 years ago

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Westkost [7]

Answer:

$2 {x}^{2} + x - 1$

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3 years ago

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zubka84 [21]

Answer:

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Step-by-step explanation:

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