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
mr_godi [17]
2 years ago
13

Help Please!! What is the value of a? Enter your answer in the box. a =

Mathematics
1 answer:
Talja [164]2 years ago
6 0

Answer:

a=15

Step-by-step explanation:

By pythagoras' theorem

25²=20²+a²

625=400+a² group like terms

a²=625-400

a²=225

\sqrt{a {}^{2} }  =  \sqrt{225}

therefore a=15

You might be interested in
Solve for n. <br> n<br> ------------ = -2<br> n-12.168
Andrej [43]

Answer:

do we have to put an whole number there

6 0
3 years ago
What is the modulus after (-1+sqrt3i) gets raised to the 6th power
Eddi Din [679]

Answer:

it is b

Step-by-step explanation:

took the test

8 0
2 years ago
Read 2 more answers
How can I write Five less than the quotient of a number and 3 is -7 in algabreaic expression
vladimir1956 [14]

Answer:

(n\div{3})-5={-7}

7 0
3 years ago
A game room has a floor ​
garri49 [273]
Okay what about the game room floor?
4 0
3 years ago
Each side of the pentagon is the same length. Is the shape a regular pentagon?
Ad libitum [116K]
If the sides of the pentagon are the same length, it is probably a regular pentagon. If the angles are all the same within the shape, it is definitely a regular pentagon.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Adison earned 25$ mowing her neighbors lawn.then she loaned her friend 18$,and got 50$ from her grandmother for her birthday. sh
    13·2 answers
  • Andrea baked h muffins.Violet baked 8 fewer muffins than Andrea.Find the average number of muffins baked by both girls,in terms
    15·1 answer
  • Write an equation for the following word problem: "the difference of twice a number and 3 is -21"
    13·1 answer
  • The weather was a youth soccer field must be at least 45 m but it cannot exceed 60 m right to inequalities that describe the wid
    7·1 answer
  • When you use deg. rad. and grad on a calculator, what does it mean?
    8·1 answer
  • Please help!<br>What is the answer to this question?<br>​
    10·2 answers
  • Max went to a shopping mall with $45 in his wallet. He spent 4/5 of the money he had in his wallet at the bookstore. How much mo
    15·1 answer
  • A circle with a 12-inch diameter is folded in half and then folded in half again. What is the area of the resulting shape? Round
    6·1 answer
  • Please anyone help me ​
    8·1 answer
  • PLEASE HELP THIS IS DUE IN 1 HOUR IF I DON'T PASS THIS I'LL FAIL THE CLASS!!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!