All categories

3 years ago

Simplify and solve 1/4 x 12 (thanks)

Mathematics

2 answers:

ololo11 [35]3 years ago

7 0

Answer:

The question simplified is 3x.

or 3

Step-by-step explanation:

liubo4ka [24]3 years ago

6 0

Answer:

solution is 3

Step-by-step explanation:

hope it helps

You might be interested in

In a random sample, 328 out of 920 12th graders in California smoked marijuana within the last year. Answer questions 1-4, and r

KengaRu [80]

Answer:

shrek then shrek

Step-by-step explanation:

then shrek the drek creck

6 0

3 years ago

Which of the sets of ordered pairs represents a function.

Lana71 [14]

So what makes a function a function is that each input (x) only has one output (y).

Set A is not a function because when x = 2, y = -2 and 3.

Set B is not a function because when x = 9, y = 3 and -3.

In short, the correct option is "Neither A nor B".

5 0

3 years ago

The small factory can produce 10,000 jeans in 2 months, how many jeans it can produce in half year?

Sliva [168]

Answer:

about 30,000 jeans

Step-by-step explanation:

10,00 divided by 2 is 5,000 saying the factory can produce 5,000 jeans a month. In half a year, which is 6 months, the factory can produce 30,000 jeans . Just do 6 times 5,000

7 0

3 years ago

You are trying to estimate the average amount a family spends on food during a year. In the past the standard deviation of the a

svetoff [14.1K]

Answer:

$n=(\frac{2.58(1000)}{50})^2 =2662.56 \approx 2663$

So the answer for this case would be n=2663 rounded up to the nearest integer

Step-by-step explanation:

We have the following info:

$ME = 50$ margin of error desired

$\sigma = 1000$ the standard deviation for this case

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =50 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The critical value for 99% of confidence interval now can be founded using the normal distribution. The significance is $\alpha=0.01$ . And for this case would be $z_{\alpha/2}=2.58$ , replacing into formula (b) we got: