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2 years ago

Which is bigger?

Mathematics

2 answers:

ValentinkaMS [17]2 years ago

7 0

I have high hopes it’s 1. 14/8 or 1 3/4

cestrela7 [59]2 years ago

3 0

Answer:

1. Equal

14/8 = 1.75

1 3/4 = 7/4

7/4 = 1.75

2. -5.6

While if they were positive, 5.65 is bigger, but since they’re negative, it’s opposite.

3. -6.8

-6 7/8 = -55/8

-55/8 = -6.875

-6.875 < -6.8

4. -3 11/12

-3 11/12 = -47/12

-47/12 = -3.912

-3 14/15 = -59/15

-59/15 = -3.9333...

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Subtract the fraction write your answer in simplest form 6/8 - 3/10

jok3333 [9.3K]

Answer:

9/10 or 0.45 in decimal form

Step-by-step explanation:

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2 years ago

Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proporti

hodyreva [135]

Answer:

The sample size n = 4225

Step-by-step explanation:

We will use maximum error formula = $\frac{z_{a} S.D}{\sqrt{n} }$

but we will find sample size "n"

$\sqrt{n} = \frac{z_{a} S.D}{maximum error}$

Squaring on both sides , we get

$n = (\frac{z_{a} S.D}{maximum error})^2$

Given 99% confidence interval (z value) = 2.56

given maximum error = 0.02

$n = (\frac{z_{a} p(1-p)}{maximum error})^2$

n≤ $(\frac{2.56X\frac{1}{2} }{0.02}) ^{2}$ ( here S.D = p(1-p) ≤ 1/2

on simplification , we get n = 4225

Conclusion:

The sample size of two samples is n = 4225

verification:-

We will use maximum error formula = $\frac{z_{a} S.D}{\sqrt{n} }$ = $\frac{2.56 1/2}{\ \sqrt{4225} }$ = 0.0196

substitute all values and simplify we get maximum error is 0.02

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3 years ago

If y = -4 when x = 10, find y when x = 5

vesna_86 [32]

To find Y you must divide two by each side, making y=-2
- I hope this helps :)

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3 years ago

Read 2 more answers

QUICK !! What is the image point of (-5,3) after a translation left 3 units and down 1 unit ?

laila [671]

Answer:

-8, 2

Step-by-step explanation:

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3 years ago

A database system assigns a 32-character ID to each record, where each character is either a number from 0 to 9 or a letter from

EastWind [94]

Answer:

0.948

Step-by-step explanation:

Given that:

Number of character ID = 32

Numbers = 0 - 9 = 10

Alphabets = A - F = 6

Likelihood of each number or alphabet is equal

Probability that atleast 16 characters in the ID are numbers

Probability of success (p) = required outcome / Total possible outcomes

p = 10/(10 + 6) = 5/8

P(at least 16 numbers), similar to 1 - p(at most 15)

Using the specified calculator :

Binomcdf(number of trials, p, 15) = 0.0520

1 - 0.0520 = 0.948

4 0

3 years ago