What is the largest prime number of 12

The Rockwell hardness index for steel is determined by pressing a diamond point into the steel and measuring the depth of penetr

Rudik [331]

Does it say anything about carbon?

8 0

3 years ago

Rank the following from most precise to least precise.1.4515100.0034

aalyn [17]

The level of precision is given by the number of decimal places.

1.45 has a precision of 2 ( two decimal digits)

.0034 has a precision of 4 ( 4 decimal digits)

Numbers that end in zeros have negative precision:

100: has a precision of -2 ( 2 zeros)

15 : Whole numbers has precision 0.

From most precise to least precise:

.0034 - 1.45- 15 - 100

8 0

1 year ago

(3 points) A survey of 15651565 people who took trips revealed that 178178 of them included a visit to a theme park. Based on th

igor_vitrenko [27]

Answer:

We fail to reject the null hypothesis at 0.05 significance level. We cannot say that less than 12% of trips include a theme park visit.

Step-by-step explanation:

let p be the proportion of trips included a visit to a theme park.

$H_{0}$ : p=0.12

$H_{a}$ : p<0.12

To test, we need to calculate test statistic of the sample proportion as:

z= $\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } }$ where

p(s) is the sample proportion of trips included visit to a theme park ( $\frac{178}{1565}=0.1137$

p is the proportion assumed under null hypothesis. (0.12)

N is the sample size (1565)

Using the numbers, z= $\frac{0.1137-0.12}{\sqrt{\frac{0.12*0.88}{1565}}}$

= −0.767 and p(z) is ≈0.222

Since 0.222 > 0.05 we fail to reject the null hypothesis.

3 0

2 years ago

REVIEW SECTION

yuradex [85]

i think its ZN=2K

im not sure so please recheck it with someone else

4 0

2 years ago

(SHOW WORK) Write the slope-intercept form of the equation:

stiks02 [169]

Answer:

$\displaystyle y = -4x - 5$

Step-by-step explanation:

We want to find the slope-intercept form of the equation that passes through the point (-2, 3) and is perpendicular to the line:

$\displaystyle y = \frac{1}{4} x - 4$

Note that this line has a slope of 1/4.

Recall that the slopes of perpendicular lines are negative reciprocals of each other.

Since the slope of our old line is 1/4, the slope of its perpendicular line must be -4.

We are also given that it passes through the point (-2, 3). So, we can consider using point-slope form:

$\displaystyle y - y_1 = m(x - x_1)$

Let (-2, 3) be (<em>x₁, y₁</em>) and substitute -4 for the slope <em>m</em>. Hence:

$\displaystyle y - (3)= -4 (x - (-2))$

Convert into slope-intercept form. Simplify:

$\displaystyle \begin{aligned} y -3 &= -4 (x + 2) \\ y - 3 &= -4x - 8 \\ y &= -4x -5\end{aligned}$

In conclusion, the perpendicular line that passes through the point (-2, 3) is given by:

$\displaystyle y = -4x - 5$

7 0

3 years ago