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
neonofarm [45]
2 years ago
11

PLEASE HELP ILL GIVE BRAINLIST. In ΔABC shown below, segment DE is parallel to segment AC:

Mathematics
1 answer:
Gnom [1K]2 years ago
4 0

Answer:

a

Step-by-step explanation:

You might be interested in
The 2010 General Social Survey reported a sample where about 48% of US residents thought marijuana should be made legal. If we w
Sati [7]

Answer:

The sample size is  n  = 600

Step-by-step explanation:

From the question we are told that

    The  sample proportion is  \r  p = 0.48

     The  margin of error is  MOE  =  0.04

Given that the confidence level is 95%  the level of significance is mathematically represented as

        \alpha  =  100 - 95

        \alpha  =  5 \%

        \alpha  =  0.05

Next  we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table , the values is

                   Z_{\frac{\alpha }{2}  } =  1.96

The reason we are obtaining critical value of    \frac{\alpha }{2} instead of    \alpha is because  

\alpha represents the area under the normal curve where the confidence level interval (  1-\alpha) did not cover which include both the left and right tail while  

\frac{\alpha }{2} is just the area of one tail which what we required to calculate the margin of error

Generally the margin of error is mathematically represented as

      MOE  =  Z_{\frac{\alpha }{2} } *  \sqrt{ \frac{\r p(1-  \r p )}{n} }

substituting values

          0.04= 1.96*  \sqrt{ \frac{0.48(1-  0.48 )}{n} }

         0.02041 = \sqrt{ \frac{0.48(52 )}{n} }

         0.02041 = \sqrt{ \frac{ 0.2496}{n} }

          0.02041^2  = \frac{ 0.2496}{n}

           0.0004166 = \frac{ 0.2496}{n}

=>       n  = 600

   

5 0
3 years ago
Solve <br> −2( x+2)−7=−3(x+5) for x
Ghella [55]

Answer:

x= 9

Step-by-step explanation:

good luck

8 0
3 years ago
Read 2 more answers
What is -7q-5 (9q-6) -52q+30
Dovator [93]
Hope This helps you..!!

6 0
3 years ago
Uhm what is the mean of 0,3,6,7,9??
jarptica [38.1K]

Answer:

5

Step-by-step explanation:

0+3+6+7+9=25

25/5=5

6 0
3 years ago
Read 2 more answers
Write 61/9 as a mixed number
bixtya [17]
Hey There!

\frac{61}{9} as a mixed number would be 6 \frac{7}{9}

Thank You!
4 0
3 years ago
Read 2 more answers
Other questions:
  • The temperature was-6F.It rose so that the temperature was 0F
    8·1 answer
  • Write various of the equation of a line that passes through (-6, 3) and has a slope of - 1/3
    5·1 answer
  • what are the solutions of the equations x^2+14x=-130? (1point) a.2,-16 b.10,-13 c.-2,16 d.no solution
    14·1 answer
  • The equation of a line is y = 1.5x_2. What are it’s slope and y- intercet
    5·2 answers
  • Violet knows that her subscription rate for the basic tier of cable television increased from $18.20 to $19.50 at some point dur
    5·1 answer
  • Find the slope of the line that crosses through the points (-2, 5) and (-5, -4)
    5·2 answers
  • I WILL GIVE BRAINLIEST! Please answer these 5 questions correctly! (NO INCORRECT ANSWERS LINKS WILL BE REPORTED NO TROLL ANSWERS
    12·1 answer
  • (1000÷1)×10-5000 Giving brainliest​
    10·2 answers
  • Karen wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She randomly selects a sample of 60
    10·1 answer
  • How many boys are there in an introductory chinese course if 363 students are enrolled and there are six boys to every five girl
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!