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
yKpoI14uk [10]
3 years ago
13

HELP ASAP PLEASE: What is m∠K?

Mathematics
2 answers:
Molodets [167]3 years ago
6 0

Answer:

55 degrees

Step-by-step explanation:

180-122=58

58+67=125

180-125=55

Goryan [66]3 years ago
6 0

Answer:

A. 55°

Step-by-step explanation:

<K + <L = 122° [ exterior angle of a triangle is equal to the sum of two opposite interior angles ]

<K + 67° = 122°

<K = 122° - 67°

<K = 55°

Hope it will help :)

You might be interested in
I need help please.
kow [346]

Answer:

(2,1)

Step-by-step explanation:

the order of pair is 2,1

8 0
2 years ago
Read 2 more answers
Find the midpoint of the line segment with end coordinates of: (-2,-2) and (2,8)​
Aleonysh [2.5K]

Answer:

(0 ; 3)

Step-by-step explanation:

hello :

the midpoint of the line segment is : ((-2+2)/2 ;(-2+8)/2 )

(0 ; 3)

8 0
2 years ago
Read 2 more answers
Find the area of the shaded region in this figure.
stealth61 [152]

Answer:

B) 190 cm^2

Step-by-step explanation:

Im pretty sure all you gotta do is

20x10 which is 200 then do 5x2

which is 10 and you minus 10 from 200

Please correct me if im wrong here

I dont really remember doing these

6 0
2 years ago
Students planted 4(2x+3y) amount of trees on saturday and then 3(5x+4) amount of trees on Sunday. What is the total amount of tr
algol [13]
We have to add the amounts:

4(2x+3y) + 3(5x+4)

First, though, we have to distribute:

4*2x + 4*3y + 3*5x + 3*4
8x + 12y + 15x + 12

Now we just need to simplify:

23x + 12y + 12

The  students planted 23x + 12y + 12 trees total.
7 0
3 years ago
Standard Error from a Formula and a Bootstrap Distribution Sample A has a count of 30 successes with and Sample B has a count of
tia_tia [17]

Answer:

Using a formula, the standard error is: 0.052

Using bootstrap, the standard error is: 0.050

Comparison:

The calculated standard error using the formula is greater than the standard error using bootstrap

Step-by-step explanation:

Given

Sample A                          Sample B

x_A = 30                              x_B = 50

n_A = 100                             n_B =250

Solving (a): Standard error using formula

First, calculate the proportion of A

p_A = \frac{x_A}{n_A}

p_A = \frac{30}{100}

p_A = 0.30

The proportion of B

p_B = \frac{x_B}{n_B}

p_B = \frac{50}{250}

p_B = 0.20

The standard error is:

SE_{p_A-p_B} = \sqrt{\frac{p_A * (1 - p_A)}{n_A} + \frac{p_A * (1 - p_B)}{n_B}}

SE_{p_A-p_B} = \sqrt{\frac{0.30 * (1 - 0.30)}{100} + \frac{0.20* (1 - 0.20)}{250}}

SE_{p_A-p_B} = \sqrt{\frac{0.30 * 0.70}{100} + \frac{0.20* 0.80}{250}}

SE_{p_A-p_B} = \sqrt{\frac{0.21}{100} + \frac{0.16}{250}}

SE_{p_A-p_B} = \sqrt{0.0021+ 0.00064}

SE_{p_A-p_B} = \sqrt{0.00274}

SE_{p_A-p_B} = 0.052

Solving (a): Standard error using bootstrapping.

Following the below steps.

  • Open Statkey
  • Under Randomization Hypothesis Tests, select Test for Difference in Proportions
  • Click on Edit data, enter the appropriate data
  • Click on ok to generate samples
  • Click on Generate 1000 samples ---- <em>see attachment for the generated data</em>

From the randomization sample, we have:

Sample A                          Sample B

x_A = 23                              x_B = 57

n_A = 100                             n_B =250

p_A = 0.230                          p_A = 0.228

So, we have:

SE_{p_A-p_B} = \sqrt{\frac{p_A * (1 - p_A)}{n_A} + \frac{p_A * (1 - p_B)}{n_B}}

SE_{p_A-p_B} = \sqrt{\frac{0.23 * (1 - 0.23)}{100} + \frac{0.228* (1 - 0.228)}{250}}

SE_{p_A-p_B} = \sqrt{\frac{0.1771}{100} + \frac{0.176016}{250}}

SE_{p_A-p_B} = \sqrt{0.001771 + 0.000704064}

SE_{p_A-p_B} = \sqrt{0.002475064}

SE_{p_A-p_B} = 0.050

5 0
2 years ago
Other questions:
  • Find the area of a kites with diagonals 6.5in and 10in.<br> I need work shown plz help!!!!!
    10·1 answer
  • PLEASE HELP ME JUST A LITTLE CONFUSED.
    13·1 answer
  • There are 36 people in a fitness studio. What fraction represents the number of people running? • 3 8 of the people lifted weigh
    15·1 answer
  • The value of Maggie's car decreased by 20% since last year, when she bought it. If the car is now worth $15,000.00, how much was
    15·1 answer
  • What is 0.15% converted to a decimal?
    9·1 answer
  • Plz help due tomorrow
    9·1 answer
  • This is the last question i have please help me
    13·2 answers
  • Use the volume formula to find the volume of the prism.<br> 31 / 를<br> 13<br> 4
    7·2 answers
  • 40% of 36<br> can somone tell me what it is or how to do it because i am struggling
    10·2 answers
  • At 6 a.m., the temperature is 19.4°C. Between 6 a.m. and noon, the temperature rises 3.8°C. Between noon and 6 p.m., the tempera
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!