1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Scrat [10]
3 years ago
11

Please help me out! :)

Mathematics
1 answer:
lapo4ka [179]3 years ago
7 0
The area for that Equilateral triangle is <span>110.851
if you round it, you get 110.9
</span>
You might be interested in
For many years businesses have struggled with the rising cost of health care. But recently, the increases have slowed due to les
kaheart [24]

Answer:

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 95% confidence interval the value of \alpha=1-0.95=0.05 and \alpha/2=0.025, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=1.96

The margin of error for this case is given by:

ME= z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

And replacing we got:

ME = 1.64*\sqrt{\frac{0.52(1-0.52)}{1000}}=0.0259

And replacing into the confidence interval formula we got:

0.52 - 1.64*\sqrt{\frac{0.52(1-0.52)}{1000}}=0.4941

0.52 + 1.64*\sqrt{\frac{0.52(1-0.52)}{1000}}=0.5459

And the 95% confidence interval would be given (0.4941;0.5459).

Step-by-step explanation:

Data given and notation  

n=1000 represent the random sample taken    

\hat p=0.52 estimated proportion of of U.S. employers were likely to require higher employee contributions for health care coverage

\alpha=0.05 represent the significance level (no given, but is assumed)    

Solution to the problem

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 95% confidence interval the value of \alpha=1-0.95=0.05 and \alpha/2=0.025, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=1.96

The margin of error for this case is given by:

ME= z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

And replacing we got:

ME = 1.64*\sqrt{\frac{0.52(1-0.52)}{1000}}=0.0259

And replacing into the confidence interval formula we got:

0.52 - 1.64*\sqrt{\frac{0.52(1-0.52)}{1000}}=0.4941

0.52 + 1.64*\sqrt{\frac{0.52(1-0.52)}{1000}}=0.5459

And the 95% confidence interval would be given (0.4941;0.5459).

5 0
3 years ago
What makes headlines? (Geojoke answer) (this is for trigonometric ratios)
Fudgin [204]

Answer:

sorry what do you mean

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Evan is making a table that will be created in the shape of the figure below. The table top is a triangle attached to a rectangl
Yakvenalex [24]
Given:
Triangle:
height = 6ft
base = 4ft

Rectangle:
length = x
Width = 6 ft

Surface Area = 150ft²

Area of a Triangle = h*b / 2 = (6ft * 4ft) / 2 = 12ft²

Area of a rectangle = Surface Area - Area of a Triangle
A = 150 ft² - 12 ft² = 138 ft²

138 ft² = x * 6ft
138 ft² / 6 ft = x
23 ft = x.
6 0
3 years ago
A survey of 80 students found that 24 students both play Which of the following correctly repres
professor190 [17]

567

Step-by-step explanation:

6 0
3 years ago
The store,s rectangular floor is 42 meters long and 39 meters wide. How many square meters of flooring do they need? Use estimat
Helga [31]
We have to find the area of the floor in order to know how many square meters of flooring they need.

The area of the floor is:
42 m* (39 m)= 1,638 m^(2)

They need 1,638 m^(2) of flooring.

Hope this helps~
8 0
3 years ago
Read 2 more answers
Other questions:
  • The population of rabbits in a national forest is modeled by the formula P= 12,000 + 1000 (t+1) where t is the number of years f
    11·1 answer
  • (14x12)<br> Simplify.<br> 776
    8·1 answer
  • Convert 18.31 meters to centimeters
    10·1 answer
  • Gold costs x cents per gram.
    9·1 answer
  • WILL GIVE A BRAINLEST<br><br> Which piecewise relation defines a function?
    9·2 answers
  • Help asap giving branlist!!
    9·2 answers
  • Can someone please check my answers I WIILL GOVE BRAINLY TO FIRST PERSON THAT ANSWERS!
    6·1 answer
  • Solve by using elimination. Express your answer as an ordered pair.
    7·1 answer
  • Factor 3x2 + 42x + 147 completely.
    13·1 answer
  • Write the equation of a line that is<br> parallel to 3x + Oy = -9 through the<br> point (3, 3).
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!