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rosijanka [135]
3 years ago
11

A recursive rule for an arithmetic sequence is a1 = −4; an = an−1 + 11

Mathematics
1 answer:
Ivenika [448]3 years ago
8 0
It’s a for sure I really think it’s A i don’t know
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What is an algebraic expression for 58 less than a number n?
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Answer:

n-58

Step-by-step explanation:

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How to know what number is a rational number?
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Answer:

A rational number is a number that can be made by dividing two integers (an integer is a number with no fractional part).  The word rational includes the word "ratio." Rational numbers are basically numbers, either positive or negative that you get by dividing 2 numbers. Any number is a rational number, even fractions and decimals, except pi due to the fact that it's a irrational number.

Step-by-step explanation:

Examples of rational numbers include, 1, which you get by dividing 1 by 1, 2 which you get by dividing 2 by 1 and 2.12, which you get by dividing 212 by 100.

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2 years ago
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julio filled his car up with gas he paid $12.95 for 5 gallons of gas. what is the cost per gallon of gas
Naya [18.7K]

Answer:

the cost for each gallon is 2.59

Step-by-step explanation:

3 0
3 years ago
A manufacturer of college textbooks is interested in estimating the strength of the bindings produced by a particular binding ma
IrinaVladis [17]

Answer:

538 books should be tested.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.005 = 0.995, so z = 2.575

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

How many books should be tested to estimate the average force required to break the binding to within 0.08 lb with 99% confidence?

n books should be tested.

n is found when M = 0.08

We have that \sigma = 0.72

M = z*\frac{\sigma}{\sqrt{n}}

0.08 = 2.575*\frac{0.72}{\sqrt{n}}

0.08\sqrt{n} = 2.575*0.72

\sqrt{n} = \frac{2.575*0.72}{0.08}

(\sqrt{n})^{2} = (\frac{2.575*0.72}{0.08})^{2}

n = 537.1

Rounding up

538 books should be tested.

6 0
3 years ago
Shino says the formula to calculate the volume of the prism is V=Bh where B is the area of the base.Angelo says the formula is V
Kruka [31]

Answer:

  it depends

Step-by-step explanation:

<em>Shino's formula will work for any prism</em>.

Angelo's formula will work for any prism whose base area can be found by ...

  B = (1/2)ew

<em>Angelo can use this formula for a triangular prism</em>.

__

For a triangular prism, both may be correct.

For a prism of another shape, Shino is correct. (Angelo may also be correct, depending on the variable definitions.)

5 0
3 years ago
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