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
klasskru [66]
3 years ago
12

Need help asap !

Mathematics
1 answer:
frutty [35]3 years ago
5 0
The triangle to solve for has a leg or 12 feet, hypotenuse of 20 feet, so solve for Pythagoras a^{2}  +  b^{2}  =  c^{2}  for a

a =  \sqrt{c^{2} -b^{2}}

a = 16 feet
You might be interested in
Xio just took a math test with 25 questions, each worth an equal number of points. The test is worth 100 points total. If a scor
Talja [164]
Each question is worth 4 points (100/25=4)
Therefore, when you divide 83 by 4, you get 20.75, as as he's aiming to get a B, this needs to be rounded up to 21.
Xio would need to get 21 questions right to get a B, hope this helps :)
6 0
2 years ago
Read 2 more answers
Simplify the following: (r+s-t)-(r-s+t)
ArbitrLikvidat [17]
R+s-t-(r-s+t)

=2s-t is the answer



People think this answer would be just =2s but I have verified with an online calculator and the answer that textbooks look for regarding this is 2s-t

You would assume you would go r-r and thats 0 so no r's

you would say s-(-s) makes it plus and theres 2s

and you would say -t -(+t) is -t 

that's why the answer is 2s-t

At first I also did t-(+t) and thought it would be no t's but the answer is in fact 2s-t 
4 0
3 years ago
What is the product in simplest form? State any restrictions on the variable. Is it 1,2,3 or 4
mart [117]

Answer: I think its C

Step-by-step explanation:

6 0
2 years ago
The probability that Ariana is on time for a given class is 69 percent. If there are 39 classes during the semester, what is the
salantis [7]

Answer:

The best estimate of the number of times out of 39 that Ariana is on time to class is 27.

Step-by-step explanation:

For each class, there are only two possible outcomes. Either Ariana is on time, or she is not. The probability of Ariana being on time for a class is independent of other classes. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

The probability that Ariana is on time for a given class is 69 percent.

This means that p = 0.69

If there are 39 classes during the semester, what is the best estimate of the number of times out of 39 that Ariana is on time to class

This is E(X) when n = 39. So

E(X) = np = 39*0.69 = 26.91

Rounding

The best estimate of the number of times out of 39 that Ariana is on time to class is 27.

8 0
3 years ago
If A={1,2,3,4,5},AUB={3,4,5}and sub={1,2,3,4,5,6},find the set B​
mars1129 [50]

Answer:

1 +2+3+4+5

aub 314+5

sub 1-2-3-4_5_6

1234567

6 0
2 years ago
Other questions:
  • PLEASE ANSWER ASAP!!!!
    11·1 answer
  • Is (-5, -8) a solution of y > 3r + 6?
    7·1 answer
  • 3 times ( 2 times x )
    10·2 answers
  • Pls help I forgot how this works
    6·1 answer
  • F(x)=3x^3-12x^2+9x what the factor<br>​
    15·2 answers
  • Given f(x) = 6x + 2, find f(x-3)
    15·2 answers
  • Solve the right triangle. Round decimal answers to the nearest tenth.
    7·1 answer
  • Please answer this!<br><br>​
    13·2 answers
  • Subtracting fractions with unlike denominators
    9·1 answer
  • Construction is a method that creates a mathematically precise geometric figure using a _____ and _____ .
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!