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Brut [27]
3 years ago
6

Is 4.2837193205.............. a natural number , rational number, integer, irrational number, or a real number

Mathematics
2 answers:
Hunter-Best [27]3 years ago
4 0

Answer:

im sorry i just need points sorry i dont know the answer

im not smart enough

Viktor [21]3 years ago
3 0
Rational Numbers, real numbers
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Theo used to drive 60 miles to work each day. His new home is now 20 miles away
posledela

Answer:

66.6% decrease in distance

Rounded 67%

He is traveling 1/3 of what he used to travel

Step-by-step explanation:

8 0
2 years ago
A random sample of 864 births in a state included 426 boys. Construct a 95% confidence interval estimate of the proportion of bo
oksian1 [2.3K]

Using the z-distribution, it is found that the 95% confidence interval is (0.46, 0.526), and it does not provide strong evidence against that belief.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

We have that a random sample of 864 births in a state included 426 boys, hence the parameters are given by:

n = 864, \pi = \frac{426}{864} = 0.493

Then, the bounds of the interval are given by:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.493 - 1.96\sqrt{\frac{0.493(0.507)}{864}} = 0.46

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.493 + 1.96\sqrt{\frac{0.493(0.507)}{864}} = 0.526

The 95% confidence interval estimate of the proportion of boys in all births is (0.46, 0.526). Since the interval contains 0.506, it does not provide strong evidence against that belief.

More can be learned about the z-distribution at brainly.com/question/25890103

4 0
2 years ago
For the linear equation y=-10+5x the x intercept is ?
svet-max [94.6K]

Answer:

(2, 0)

Step-by-step explanation:

X intercept is when y = 0.

0 = -10 + 5x

5x = 10

x = 2

6 0
3 years ago
If 3lbs costs 4.00$ how much will 2 lbs cost
harkovskaia [24]

Answer:

1.5

Step-by-step explanation:

if you do 3 divided by 4 then you get 0.75 then you have to do 0.75 times 2 and you get 1.5 dollars for 2 pounds

3 0
3 years ago
Read 2 more answers
What is the axis of symmetry
zavuch27 [327]
The graph of a quadratic function is a parabola. The axis of symmetry<span> of a parabola is a vertical line that divides the parabola into two congruent halves. The </span>axis of symmetry<span>always passes through the vertex of the parabola . The x -coordinate of the vertex is the equation of the </span>axis of symmetry<span> of the parabola.</span>
3 0
3 years ago
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