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3 years ago

How many 68 times fit in 345

2 answers:

8 0

5 time because you wanna multiply 68 times a number that gets you the closest to 345 which is 68 x 5 = 340 and 68 x 6 = 408 which is too high.

Arisa [49]3 years ago

7 0

About 5 times.........

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Choose Yes or No to tell whether each value of p is a solution for this inequality.

blsea [12.9K]

No
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3 years ago

Look at the image below.<br> 10<br> 11 8<br> Find the area of the parallelogram.<br> square units

Rus_ich [418]

Edit: Misread the diagram, the previous answer was wrong.

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1 year ago

Read 2 more answers

Recent census data indicated that 14.2% of adults between the ages of 25 and 34 live with their parents. A random sample of 125

kicyunya [14]

Answer:

The probability is $P(14 < X < 20 ) = 0.5354$

Step-by-step explanation:

From the question we are told that

The proportion that live with their parents is $\r p = 0.142$

The sample size is n = 125

Given that there are two possible outcomes and that this outcomes are independent of each other then we can say the Recent census data follows a Binomial distribution

i.e

$X \ \~ \ B( \mu , \sigma )$

Now the mean is evaluated as

$\mu = n * \r p$

$\mu = 125 * 0.142$

$\mu = 17.75$

Generally the proportion that are not staying with parents is

$\r q = 1 - \r p$

= > $\r q = 0.858$

The standard deviation is mathematically evaluated as

$\sigma = \sqrt{n * \r p * \r q }$

$\sigma = \sqrt{ 125 * 0.142 * 0.858 }$

$\sigma = 3.90$

Given the n is large then we can use normal approximation to evaluate the probability as follows

$P(14 < X < 20 ) = P( \frac{ 14 - 17.75}{3.90}$

Now applying continuity correction

$P(14 < X < 20 ) = P( \frac{ 13.5 - 17.75}{3.90} < \frac{ X - \mu }{\sigma } < \frac{ 19.5 - 17.75}{3.90} )$

Generally

$\frac{ X - \mu }{\sigma } = Z ( The \ standardized \ value \ of X )$

$P(14 < X < 20 ) = P( \frac{ 13.5 - 17.75}{3.90} < Z< \frac{ 19.5 - 17.75}{3.90} )$

$P(14 < X < 20 ) = P( -1.0897 < Z< 0.449 } )$

$P(14 < X < 20 ) = P( Z< 0.449 ) - P(Z < -1.0897)$

So for the z - table

$P( Z< 0.449 ) = 0.67328$

$P(Z < -1.0897) = 0.13792$

$P(14 < X < 20 ) = 0.67328 - 0.13792$

$P(14 < X < 20 ) = 0.5354$

6 0

3 years ago

Write a mathematical expression for the phrase 8 divided by x added to the absolute value of 5y

gizmo_the_mogwai [7]

Answer:

|5y|+8/x

Step-by-step explanation:

The mathematical expression is |5y|+8/x

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2 years ago

3. Which expressions are equivalent to the given one?

Montano1993 [528]

Answer:

b, d

Step-by-step explanation:

20/-4 = -5

20 x (-1/4) = -5

4 0

1 year ago