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lilavasa [31]
3 years ago
14

In a CBS News survey done in 2009, 95% of n=346 randomly sampled married men said that they would marry their spouse again if th

ey had it to do all over again. In the same survey, 85% of n=522 married women said that they would marry their spouses if they had to do it over again. a. Calculate a 95% confidence interval that estimates the difference in proportions of married women and men who would marry their spouse again if they had it to do all over again. b. On the basis of the confidence interval determined in part a, can we infer that the population proporti
Mathematics
1 answer:
Nitella [24]3 years ago
5 0

Answer:

456

Step-by-step explanation:

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Find the slope of the line through the pair of points by using the slope formula. (-4,3) and (-2, -4) The slope of the line is (
IRINA_888 [86]

Answer: -3\dfrac{1}{2}.

Step-by-step explanation:

We know that the slope of a line passing through points (a,b) and (c,d) is given by :_

m=\dfrac{d-b}{c-a}

The given points : (-4,3) and (-2, -4)

Now, the slope of the line passing through points (-4,3) and (-2, -4) is given by :-

m=\dfrac{-4-3}{-2-(-4)}\\\\\Rightarrow\ m=\dfrac{-7}{-2+4}\\\\\Rightarrow\ m=\dfrac{-7}{2}=-3\dfrac{1}{2}

The slope of a line passing through points (-4,3) and (-2, -4) is -3\dfrac{1}{2}.

5 0
3 years ago
Find the missing number so that the equation has infinitely many solutions.<br> 2x - 10 + 2x = 4x +
Vlad [161]

Answer:

-10

Step-by-step explanation:

1. First, let's simplify both sides of the equation.

  • 2x - 10 + 2x = 4x + ?
  • 4x - 10 = 4x + ?

2. To find the missing value to make the equation have infinitely many solutions, we need to make both sides of the equation equal.

3. Given that information, means that 4x - 10 has to equal 4x + (-10) because:

  • 4x - 10 = 4x + (-10)
  • 4x - 10 = 4x - 10

4. Now, with the information in #2, let's see if it's true:

  • 4x - 10 = 4x - 10
  • 4x - 10 -4x = 4x - 10 - 4x
  • -10 = -10
  • -10+10=-10+10
  • 0=0
  • (0 = 0 means that the equation has infinitely many solutions)

Therefore, the missing number is -10.

3 0
3 years ago
Ryan uses 3 bars of clay for a sculpture. The first bar is 1.15 centimeters long. The second bar is 3.92 centimeters long. What
mash [69]
Since we aren't told the length of the 3rd bar, focus solely on the lengths of the first 2 bars.  Add together their lengths:  1.15 cm + 3.92 cm = 5.07 cm.
6 0
4 years ago
Which expression is equivalent to (<img src="https://tex.z-dn.net/?f=%28x%5E%7B2%7D%20%29%5E3" id="TexFormula1" title="(x^{2} )^
son4ous [18]
X^6 because you have to multiply the exponents
8 0
3 years ago
The radius of a circle is 4 inches. What is the circle's circumference?
mojhsa [17]

Answer:

8π inches or approximately 25.12 inches

Step-by-step explanation:

What's the circumference of a circle?

 ❖ The circumference of a circle is the distance around a circle.

How do we find the circumference of a circle?

 ❖ The formula to find the circumference of a circle is 2πr, where r =    

      radius. We can solve in terms of pi, or approximate pi to 3.14

<u>Solving</u>

  • <u></u>\pi * 4*2
  • \pi *8
  • 8π inches

<u>or</u>

  • <u />3.14*4*2
  • 3.14*8
  • 25.12 inches

Have a lovely rest of your day/night, and good luck with your assignments! ♡

7 0
3 years ago
Read 2 more answers
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