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
Elena L [17]
3 years ago
13

Someone please help me !!!

Mathematics
1 answer:
alexandr1967 [171]3 years ago
3 0

Because this triangle is a right traingle and has one angel that is 45 degrees, the third angle must be 45 degrees to because 90+45+45=180. With that, km must be the same length as lm. we know lm is 5 so km is 5 too. No we can plug this into the Pythagorean Theorem too get

5^2+5^2=c^2

25+25=c^2

50=c^2

√50=√c^2

√25*2=c

5√2=c

Thats your answer to the length of lk.

You might be interested in
Lena took a test with 20 questions. She lost 5 points for each of the 12 questions she got incorrect, however, gained 20 points
Makovka662 [10]

Answer:

17

Step-by-step explanation:

6 0
2 years ago
Find the slope and y intercept of the line represented by each table
charle [14.2K]

Step-by-step explanation:


6 0
3 years ago
Out of a sample 650 high school students, 321 take the bus to school every day. construct a 99% confidence interval for the popu
gtnhenbr [62]

A 99% confidence interval for the population mean of high school students that take the bus to school every day is b) ci=(44.34%, 54.43%)

We need to find the 99% confidence interval for the population mean of high school students that take the bus to school everyday

A confidence interval is a range of estimates for an unknown parameter. The confidence interval is calculated at the specified confidence level; the most common is the 95% confidence level, but sometimes other levels are used, such as 90% or 99%.

The confidence interval of proportions is given by:

π ± z √(π (1-π) /n)

π is the sample proportion.

z is the critical value.

n is the sample size.

For 99% confidence interval the value of z is 2.58

π = 321/650

The confidence interval is given by

=321/650 ± 2.58 √( (321/650) × [ 1 - (321/650) ] ÷ 650)

= (0.493846 ± 0.050594)

=(0.4434 , 0.5443)

=(44.34 % , 54.43 %)

Hence a 99% confidence interval for the population mean of high school students that take the bus to school every day is ci=(44.34%, 54.43%)

<u>Learn more about confidence interval:</u>

brainly.com/question/28052710

# SPJ4

8 0
2 years ago
What is two rays sharing a common endpoint?
Finger [1]
Two rays sharing a common endpoint is the vertex.

7 0
3 years ago
Read 2 more answers
Susan ran 4 miles in 20 minutes. How many minutes will she take to walk 3 miles
inn [45]

Answer: 15

Step-by-step explanation:

4/20 is your ratio. Simplify it and it'd be 1/5. This means in 1 mile has been walked in 5 minutes. 3 x 5 is 15, so it took Susan 15 minutes.

6 0
3 years ago
Other questions:
  • Karen has $600. She spent $240 on clothes. What percentage of money did she have left?
    5·2 answers
  • Helppppppppppppppppppp
    12·2 answers
  • ) in. Find the length of the radius.
    9·1 answer
  • How many one-ounce slices of cheese are in a pound
    8·1 answer
  • Select the letter of the best answer choice. Use 3.14 or 22/7 for π
    9·1 answer
  • Vera's office recycled a total of 4 kilograms of paper over 2 weeks. After 7 weeks, how many kilograms of paper will Vera's offi
    13·1 answer
  • HEELLPP plss!!!!!!!!<br><br> Solve
    15·1 answer
  • Please help due in 10 minutes
    12·2 answers
  • The quotient of two times a number x and 5 is 12. Write in an algebraic expression
    8·1 answer
  • Mitch bought 4.6 feet of fabric. Each foot cost $3.50. How much did he spend in all on fabric?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!