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
vazorg [7]
3 years ago
10

What is the radius of a circle with the equation x2 + y2 – 14x + 10y = 250? A) 9 units B) 12 units C) 15 units D) 18 units

Mathematics
1 answer:
VikaD [51]3 years ago
5 0

Answer:

D

Step-by-step explanation:

To find the radius of the circle with equation x2 + y2 – 14x + 10y = 250, convert the equation into vertex-form (x - h)² + (y-k)² = r². Convert by completing the square for x² - 14x and y² + 10y.

Complete the square by dividing each term -14x and 10y in two. Then square each.

-14/2 = -7 and -7² = 49

10/2 = 5 and 5² = 25

The equation becomes x² - 14x + 49 + y² + 10y + 25 = 250 + 49 + 25.

We simplify the equation into (x-7)² + (y + 5)² = 324.

324 is the value of radius squared. Take the square root to find the radius.

√324 = 18

The radius is 18 units.

You might be interested in
Evaluate this expression for b= 3, and a=2. b-a
almond37 [142]
Substitute the values in the expression
b-a=3-2=1
answer b-a=1
5 0
3 years ago
Read 2 more answers
Create an exponential function that starts at 650 and increases by 12% us the form f(x) = p (1=r)^x
ololo11 [35]
F(x)= 650(1+.12)^x

f(x) = 650(1.12)^x
4 0
3 years ago
-3 N is an interger. <br> Write down the possible values of N.
PolarNik [594]

Answer:

Step-by-step explanation:

N is all integers except 0.

3 0
3 years ago
Read 2 more answers
What is 22 percent of 50
Lady_Fox [76]
Translate
'what' means unknown or find this or ?
'is' means = or equals
22%
'of' means multiply
50

percent means parts out of 100
x%=x/100 so 22%=22/100

so

what is 22% of 50 means
?=22/100 times 50
?=1100/100
?=11
answer is 11

the hack, is to recognize that 50 is 1/2 of 100, so 22% of 1/2 of 100 is 22/2=11


answe ris 11


5 0
3 years ago
Read 2 more answers
No step by steps or links please
Sholpan [36]

Answer:

Six at top, ten at second, twenty-seven at third, and four at bottom.

4 0
3 years ago
Other questions:
  • Y=5(x-2)(x+1) in standard form
    6·1 answer
  • Find the volume in the cylinder in terms of π (pi) and to the nearest tenth .
    13·2 answers
  • Simplify.<br> √192<br><br> A. 8√3<br><br> B. 64√3<br><br> C. 10√6<br><br> D. 8√24
    9·1 answer
  • sorry i can not answer any more questions i get my answers from google sorry brainly and everyone else here i will not answer an
    7·2 answers
  • Help please thanks so much
    12·2 answers
  • Find the equation of a line parallel to −4x−5y=−4 that contains the point (3,−2). Write the equation in slope-intercept form.
    6·1 answer
  • PLZ HELP IF YOU CAN PLZ ANSWER ALL 1. Quan plans to spend less than $80 for buying groceries. He plans to spend $68.25 on food a
    9·2 answers
  • Solve for x using the given diagram
    10·1 answer
  • Can somebody please hellllp me with thissssss!!! please
    15·2 answers
  • You move out into the country and you notice every Spring there are more and more Deer Fawns that appear. You decide to try and
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!