All categories

3 years ago

What is 3 1/4 ×4 = what

Mathematics

2 answers:

Tcecarenko [31]3 years ago

7 0

the answer to 3 1/4x4 is 13

sergiy2304 [10]3 years ago

4 0

Answer:

13.

Step-by-step explanation:

3 1/4 is equal to 13/4, as 1 = 4/4, and 4/4 x 3 = 12/4, and 12/4+1/4=13/4. 13/4x4=52/4, and 52 divided by 4=13.

You might be interested in

I need help so please help

arlik [135]

Answer:

M= sq root of 2 and N= sq root of 5 would be irrational

Step-by-step explanation:

These two answer choices are irrational because they cannot be shown or expressed as a fraction.

6 0

2 years ago

in a survey, 250 adults and children were asked whether they know how to swim. the surgery data are shown in the relative freque

Nadusha1986 [10]

Answer: D

Step-by-step explanation:

7 0

2 years ago

7EE2 7. In August, Cory begins school shopping for his triplet daughters. One day, he bought 3 packages of socks for $8 each and

NeTakaya

Answer:

3(8) + 3d

24+3d

Step-by-step explanation:

I am not sure which two answer choices you have provided for you but these two expressions work for this problem

4 0

3 years ago

Explain how bias in the survey might have affected the results. A survey asks teens, “Do you, like most teenagers, dislike liste

Mamont248 [21]

B the phrasing of the question suggest a bias against classical music

that is the answer because they are assuming that no teens like classic music, which is just an opinion, which is bias :)

8 0

3 years ago

Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean number of litres (L) of gasoline sold to his

Fudgin [204]

Answer:

The point estimate of the population mean is $\= x = 56$

The 80% confidence level is $50.57 < \mu < 61.43$

There is 80% confidence that the true population mean lies within the confidence interval.

Step-by-step explanation:

From the question we are told that

The sample size is n = 18

The standard deviation is $\sigma = 18 \ L$

The sample mean is $\= x = 56$

Generally the point estimate of the population mean is equivalent to the sample mean whose value is $\= x = 56$

Given that the confidence interval is 80% then the level of significance is mathematically represented as

$\alpha = 100 - 80$

$\alpha = 20 \%$

$\alpha = 0.20$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table

The value is $Z_{\frac{ \alpha }{2} } = 1.28$

Generally the margin of error is mathematically evaluated as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

=> $E = 1.28 * \frac{18 }{\sqrt{18} }$

=> $E = 5.43$

Generally the 80% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $56 - 5.43 < \mu < 56 + 5.43$

=> $50.57 < \mu < 61.43$

The interpretation is that there is 80% confidence that the true population mean lies within the limit

3 0

3 years ago