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
VARVARA [1.3K]
3 years ago
9

Identify the equation of the translated graph in general form x^2+y^2=7 for T(-8,4) A. x^2 + y^2 + 16x - 8y + 73 = 0 B. x^2 + y^

2 + 8x - 4y - 73 = 0 C. x^2 + y^2 + 16x + 8y + 73 = 0 D. x^2 + y^2 + 8x + 4y + 73 = 0
Mathematics
1 answer:
Lunna [17]3 years ago
3 0

Answer:

The correct option is A

Step-by-step explanation:

The standard form of equation of circle is written as:

(x - a)² + (y - b)² = r²

Where centers is given as (a,b)

The equation of the circle given in the question is:

x² + y² = 7

If the circle is translated T(-8,4), it means that the centre of translated circle lies at (-8,4).

So standard form of equation of circle is:

(x + 8)² + (y - 4)² = 7

Simplifying the equation:

(x² + 64 + 2(x)(8)) + (y² + 16 - 2(y)(4)) = 7

x² + 64 + 16x + y² + 16 - 8y = 7

x² + y² + 16x - 8y + 80 = 7

x² + y² + 16x - 8y + 80 - 7 = 0

x² + y² + 16x - 8y + 73 = 0

which is the general form of the equation of circle

You might be interested in
NEED HELP ASAP
IRINA_888 [86]
I'll start by expanding everything, and 10^(x) means we move the decimal x places to the right. If we move the decimal to the right but there's no number there, that number is 0.
The populations are as follows (in the order in the graph) -
127,180,000
200,000,000
80,619,000
63,708,000
173,615,000
152,510,000

The first difference is the number of digits. The more, the better. The two that stand out at the bottom are Germany and the UK. Next, we look at the leftmost number. Since 6<8, Germany's population > UK's population. All other countries are greater than Germany. Next, we look at the next smallest amount of digits, which is every other country. We look at the first number, which gives us Japan, Nigeria and Bangladesh. Next, we look at the second number, and since 2<5<7, Japan is smaller than Bangladesh and Nigeria is bigger than Bangladesh. Our current list is as follows:
United Kingdom (UK), Germany, Japan, Bangladesh, Nigeria. Since Brazil 
has been proven to be greater than the rest (as it has more digits and 2>1), our list is now 
United Kingdom (UK), Germany, Japan, Bangladesh, Nigeria, Brazil
5 0
3 years ago
Read 2 more answers
Question Help 2.4.PS-9 The equation P=5s represents the perimeter P of a regular pentagon with side length s. What is the perime
Serjik [45]

Answer:

Perimeter = 15 cm

Step-by-step explanation:

The equation P=5s represents the perimeter P of a regular pentagon with side length s.

We need to find the perimeter of a regular pentagon with side length of 3 cm.

To find it, put s = 3 cm in the given equation.

P = 5(3) cm

= 15 cm

Hence, the perimeter of the regular pentagon of side length 3 cm is 15 cm.

3 0
3 years ago
‍♀️ can someone help
Dmitriy789 [7]

Answer:

the answer should be 5/16

5 0
4 years ago
four fifths of senior class went to prom. if 324 seniors went to prom, how many are there in the senior class
konstantin123 [22]

Answer:

The answer to your question is 405, because look divide 324 by 4 becasue thats how many fifths are being used then multiply the answer which is 81 by 405


Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
How to calculate tarriffs?​
Ksivusya [100]

Answer:

The simple way to calculate a trade-weighted average tariff rate is to divide the total tariff revenue by the total value of imports. Since these data are regularly reported by many countries, this is a common way to report average tariffs.

3 0
3 years ago
Other questions:
  • Joe bought 5.8 pounds of grapes to have as a snack with his 10 friends.If he shares his grapes evenly,how many pounds of grapes
    12·2 answers
  • What is 644.4 rounded to the nearest one
    10·2 answers
  • (5h-4)-(h-5) combining like terms
    7·1 answer
  • On a map with a scale of 1:24,000, a measured distance of one inch represents an actual distance of ___ feet.
    5·1 answer
  • Given: PS=RT, PQ=ST<br> Prove: QS=RS
    15·1 answer
  • Help me with math please
    13·2 answers
  • A dude just gave me free points and told me to spread the happiness so hereeeeeee
    15·2 answers
  • Which statement illustrates the distributive property?
    12·1 answer
  • CAN someone PLZ help !?
    6·1 answer
  • Help please ?.......
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!