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
larisa [96]
3 years ago
13

B(4,5)

Mathematics
1 answer:
anyanavicka [17]3 years ago
8 0

Step-by-step answer:

The general form of an equation centered at O(0,0) is given by

x^2+y^2=r^2

where r is the radius, (x,y) is any point on the circumference.

If B(4,5) lies on the circumference, then we can find the radius of the circle by substitution:

4^2+5^2=r^2

=>

r^2 = 16+26 =41

Hence the equation of a circle centred at O(0,0) and B(4,5) on its circumference is

x^2 + y^2 = 41

You might be interested in
The Appalachian Trail is a hiking trail that stretches 2158 miles from Georgia to Maine the record for completing this hike in t
inn [45]
They averaged about 17 hours a day.
3 0
3 years ago
Someone please help me with this question asap!
Alexeev081 [22]

Answer:

23.5 in

Step-by-step explanation:

To find the length of HJ in triangle GHJ, create <u>three equations</u> using the given information, then solve simultaneously.

<u>Equation 1</u>

HJ is two inches longer than GH:

⇒ HJ = GH + 2

<u>Equation 2</u>

GJ is 17 inches shorter than the sum of HJ and GH:

⇒ GJ + 17 = HJ + GH

<u>Equation 3</u>

The perimeter of ΔGHJ is 73 inches:

⇒ HJ + GH + GJ = 73

<u>Substitute</u> Equation 1 into <u>Equation 2</u> and isolate GJ:

⇒ GJ + 17 = GH + 2 + GH

⇒ GJ + 17 = 2GH + 2

⇒ GJ = 2GH - 15

<u>Substitute</u> Equation 1 into <u>Equation 3</u> and isolate GJ:

⇒ GH + 2 + GH + GJ = 73

⇒ 2GH + GJ = 71

⇒ GJ = 71 - 2GH

<u>Equate</u> the two equations where GJ is the subject and <u>solve for GH</u>:

⇒ 2GH - 15 = 71 - 2GH

⇒ 4GH = 86

⇒ GH = 21.5

<u>Substitute</u> the found value of GH into <u>Equation 1</u> and solve for HJ:

⇒ HJ = 21.5 + 2

⇒ HJ = 23.5

7 0
2 years ago
Read 2 more answers
Match the graph of the function with the function rule.
mylen [45]

Answer:

y = 10( {4}^{x} )

Step-by-step explanation:

From the given exponential graph, the y-intercept is (0,10).

The only exponential function that, has this intercept is

y = 10( {4}^{x} )

Because when x=0, we obtain:

y = 10( {4}^{0} )

Simplify:

y = 10(1) = 10

6 0
4 years ago
uppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76 c
r-ruslan [8.4K]
Significant figures and decimal places are different things. If this were to be rounded to 2 DP you would be right, however Significant figures are to do with units. In this case, it would be 12cm^2

5 0
4 years ago
Miguel has one foot of string. He cuts the string into fourths. How many inches is each piece of string?
Trava [24]

Answer:

Each piece of string is 3 inches long.

Step-by-step explanation:

1 foot equals 12 inches and 12 divided by 4.

6 0
3 years ago
Other questions:
  • Simplify the expression 8^2 + 9 (12/3 x 2)-7. Explain each of your steps
    11·1 answer
  • Prove that, 36^7−6^13 is divisible by 30.
    8·1 answer
  • In Charlie's family, two people have blue eyes, and three people have brown eyes. Write a fraction to represent the part of the
    14·1 answer
  • Translate the phrase into an algebraic expression.<br><br> 3 more than y
    13·1 answer
  • What is 78/21 as a reduced fraction?
    14·2 answers
  • Find the measure of angle x in the figure below.<br><br> 45<br> 80<br> 55<br> 100
    8·2 answers
  • Please help I don’t know how to do this at all!
    13·1 answer
  • In the Accompanying diagram of circle O, chords AB and CD intersect at E, mAC=50 and mBD =150. Find m
    7·1 answer
  • The cost of 2.25
    13·1 answer
  • The perimeter of a regular hexagon is 72 inches. Find the length of each of its sides.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!