answer.
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
Greeley
7 days ago
14

Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options. The radius of the cir

cle is 3 units. The center of the circle lies on the x-axis. The center of the circle lies on the y-axis. The standard form of the equation is (x – 1)² + y² = 3. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
Mathematics
2 answers:
PIT_PIT [9.1K]7 days ago
8 0
The statements labeled 1 and 4 are accurate. To easily see the center and radius of the circle, we can modify the given equation to fit its standard format. Once in standard form, we can contrast it with the standard equation to find the circle's center and radius. The coordinates for the center are determined to be (1,0) and the radius is represented by r = \sqrt{9} = 3. With this understanding, we can evaluate each statement. 1. The circle's radius is 3 units—this is true. 2. The circle's center is located on the y-axis—this is incorrect, as the center at (1,0) indicates it is on the x-axis. 3. The standard equation is (x - 1)² + y² = 3—this is false; the correct equation is (x - 1)² + y² = 9. 4. The circle's radius matches that of the circle with the equation x² + y² = 9—this statement is correct, as both radii equal 3.
babunello [8.4K]7 days ago
4 0
1,4
You might be interested in
How many natural numbers are there between 8² and 9²​​​
Svet_ta [9500]
Soccer game theory posits that the earliest participants in the game will play.
3 0
1 month ago
If m<DBC=(12x-3)°, m<DBE=(5x+12)°, and m<EBC=(3x+13)°, find m<EBC.
Leona [9271]

Answer:

m∠EBC=34°

Step-by-step explanation:

We establish that

m∠DBC=m∠DBE+m∠EBC

Refer to the accompanying diagram for clarity on the issue

Replace the known values in the equation and determine x

(12x-3)\°=(5x+12)\°+(3x+13)\°\\12x-3=8x+25\\12x-8x=25+3\\4x=28\\x=7

Calculate the size of angle EBC

m∠EBC=(3x+13)°

Insert the value for x

m∠EBC=(3(7)+13)°

m∠EBC=(21+13)°

m∠EBC=34°

8 0
1 month ago
Sam receives the following scores on his English tests: 63, 84, and 96. What average score does he need on the last two tests in
Zina [9171]
Sam needs to score 97 on his upcoming test to keep his average at 85. If you total 63, 84, 96, and 97, the sum is 340. Dividing 340 by four test scores yields an exact average of 85.
4 0
16 days ago
Simplify the given expression, using only positive exponents. Then complete the statements that follow. [ (x2y3)−1 (x−2y2z)2 ] 2
AnnZ [9099]

Answer: y²z⁴ / x¹²

  • The exponent for x is 12

  • The exponent for y is 2

  • The exponent for z is 4

Explanation:

1) The expression to simplify:

((x^2y^3)^{-1}(x^{-2}y^2z)^2)^2

2) Rule: power of a power:

(x^{-4}y^{-6})(x^{-8}y^8z^4)

3) Rule: product of powers with identical bases

x^{(-2-8)}y^{(-6+8)}z^4

4) Add up the exponents

x^{-12}y^2z^4

5) Transfer the negative exponent to the denominator:

\frac{y^2z^4}{x^{12}}

The exponent attached to x is 12, for y it is 2, and for z it is 4.

4 0
17 days ago
Read 2 more answers
You need 20 pounds of grass seed to plant grass inside the baseball diamond below. About how many pounds of grass seed
Leona [9271]
You will require approximately 13 pounds of grass.
6 0
3 days ago
Other questions:
  • Line AB and BC for a right angle at point B. If A(-3,4) and B(4,4) what is the equation of line BC?
    12·2 answers
  • Which graph shows the axis of symmetry for the function f(x) = (x – 2)2 + 1?
    5·2 answers
  • An employee receives a pay increase from $35,000 per year to $37,500 per year. Calculate the percent increase. Round to the near
    15·2 answers
  • Use a table of numerical values of f(x,y) for (x,y) near the origin to make a conjecture about the value of the limit of f(x,y)
    12·2 answers
  • In the following diagram \overline{DE} \parallel \overline{FG}
    11·1 answer
  • A paint manufacturer made a modification to a paint to speed up its drying time. Independent simple random samples of 11 cans of
    8·1 answer
  • Tia made a scale drawing of the White House for her history project. The actual length of the building is 168 feet, and its widt
    8·2 answers
  • A turtle walks 7/8 of a mile in 50 minutes. What is the unit rate when the turtle’s speed is expressed in miles per hour?
    10·2 answers
  • There are 7 yellow, 5 green, and 3 blue party hats in a bag. you randomly choose a yellow party hat and put it on. then your fri
    11·1 answer
  • 3A wholesaler buys baseball gloves for $15 each. He then marks up the price to $20. By what percentage was the price of the base
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!