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4 years ago

Algebra 1 taking stock

Mathematics

1 answer:

bonufazy [111]4 years ago

6 0

Given:

36 inch long pipe

Must be cut into 21/4 inch long pieces

Required:

How many pieces to be cut

Solution:

All you need to do is to divide 36 by 21/4

Dividing this will result to 48/7 pipes or 6 and 6/7 pipes

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A company that builds homes advertises that by choosing from its upgrade options each of its new homes is available In 256 diffe

lutik1710 [3]

Solution:

Let number of upgrade options = p

Let total number of distinct variations in which 256 new homes is available = k

So, p × p× p.....k times = 256

⇒ $p^k= 256$

256= 2 × 2 ×2 ×2 ×2 ×2 ×2 ×2= $2^6$

256= 4 ×4 ×4 × 4= $4^4$

So,Either, number of upgrade options = 2 ,

Or , Number of upgrade options = 4

3 0

3 years ago

I need help pls pls pls pls

nignag [31]

Answer:

9(w+8) factor 9

Step-by-step explanation:

factor expression

9w+72 divide both side by 9

9/9w+72/9

w+8

7 0

3 years ago

Read 2 more answers

An article on polygraph testing of FBI agents indicated that the probability of a false-positive (a trustworthy person who nonet

Alexandra [31]

Answer:

The variable x will follow a geometric distribution, with mean = 3 and standard deviation = 3.46.

The values for P(x) are:

$P(0)=0.25\\\\P(1)=0.1875\\\\P(2)=0.1406\\\\P(3)=0.1055\\\\P(4)=0.0791\\\\P(5)=0.0593\\\\P(6)=0.0445\\\\P(7)=0.0334\\\\P(8)=0.025\\\\P(9)=0.0188\\\\P(10)=0.0141\\\\$

Step-by-step explanation:

This kind of random variables can be descripted by the geometrical distribution.

This distribution shows the probability of having an amount of "failures" before the first "success" (or the other way).

Let x be the number of trustworthy FBI agents tested until someone fails the test. The probability of failing a test is p=0.25

Then, the probability of x is:

$P(x)=q^x\cdot p$

The values for the first x are:

$P(0)=0.75^0\cdot 0.25=0.25\\\\P(1)=0.75^1\cdot 0.25=0.1875\\\\P(2)=0.75^2\cdot 0.25=0.1406\\\\P(3)=0.75^3\cdot 0.25=0.1055\\\\P(4)=0.75^4\cdot 0.25=0.0791\\\\P(5)=0.75^5\cdot 0.25=0.0593\\\\P(6)=0.75^6\cdot 0.25=0.0445\\\\P(7)=0.75^7\cdot 0.25=0.0334\\\\P(8)=0.75^8\cdot 0.25=0.025\\\\P(9)=0.75^9\cdot 0.25=0.0188\\\\P(10)=0.75^{10}\cdot 0.25=0.0141\\\\$