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
dezoksy [38]
3 years ago
9

Find the value of a and b a^2 + b^2 = 400

Mathematics
2 answers:
Oliga [24]3 years ago
7 0

Answer:

Step-by-step explanation:

a^2+b^2=400

a^2=400-b^2

a=sqrt(400-b^2) & -sqrt(400-b^2)

-----------------------------------------------

b^2=400-a^2

b=sqrt(400-a^2) & -sqrt(400-a^2)

ololo11 [35]3 years ago
3 0

Answer:

20

Step-by-step explanation:

You might be interested in
"write the expression in radical form and then evaluate"
Gennadij [26K]
What is the expression?

3 0
3 years ago
Someone please help! Thxx
tangare [24]

Answer:

E, needs more info to be determined

Step-by-step explanation:

We know that Kai takes 30 minutes round-trip to get to his school.

One way is uphill and the other is downhill.

He travels twice as fast downhill than uphill.

This means that uphill accounts for 20 minutes of the round-trip and downhill accounts for 10 minutes of his trip.

However, even with this information, we do not know how far his school is.

In order to figure out how far away his school is, we would need more information about the speed at which Kai is traveling.

Simply knowing that he travels twice as fast downhill is not enough.

This question could only be solved by knowing how many miles Kai travels uphill or downhill in a given time.

3 0
3 years ago
Can you please help me and show you work ​
Nutka1998 [239]

Answer:

37.50 and 84.97

Step-by-step explanation:

5 0
3 years ago
Find the lateral area for the prism. L.A. =<br> Find the total area for the prism. T.A. =
Ksivusya [100]
The lateral area of the prism is given by:
LA=[area of the two triangles]+[area of the lateral rectangles]
hypotenuse of the triangle will be given by Pythagorean:
c^2=a^2+b^2
c^2=6^2+4^2
c^2=52
c=sqrt52
c=7.211'
thus the lateral area will be:
L.A=2[1/2*4*6]+[6*8]+[8*7.211]
L.A=24+48+57.69
L.A=129.69 in^2

The total are will be given by:
T.A=L.A+base area
base area=length*width
=4*8
=32 in^2
thus;
T.A=32+129.69
T.A=161.69 in^2

6 0
3 years ago
Read 2 more answers
Joe has four notes in his wallet. The total value of the notes is $75. Which type of note is not in Joe's wallet?
Sergio039 [100]

Answer:

$ 20

Step-by-step explanation:

Given that,

No. of notes Joe has = 4

The total value of the notes = $ 75

From the given notes, 4 notes that can make the sum of 75 would be

$ 50 note + $ 10 + $ 10 note + $ 5

= 50 * 1 + 10 * 1 + 10 * 1 + 5 * 1

= $ 75  

Thus, the note that would not be included in the total value would $20 note as if we add it either the sum would be greater or lesser with four notes in combination.

6 0
3 years ago
Other questions:
  • A pair of dice is rolled 20 times. what is the probability that a sum of 5 is rolled at least r times
    8·1 answer
  • What is 0.08333333333 as a fraction?
    9·1 answer
  • La catul numerelor 27 si 3 adauga o patrime din 32
    5·1 answer
  • It's possible to build a triangle with side lengths of 3.3, and 9<br> A. True<br> B. False
    12·1 answer
  • A friend is building a dog pen with an area of 150 square feet. Each side must be at least 5 feet long.
    13·1 answer
  • Draw a diagram to represent the problem. Then solve.
    10·1 answer
  • Help with this I don't know how to solve
    14·1 answer
  • What is volume of a cylinder with a. Radius of 7 and a height of 3
    7·1 answer
  • 13d+8=-1<br><br> b=?<br> need answer
    10·2 answers
  • Use the diagram below to answer the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!