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
Alika [10]
2 years ago
8

PLEASE HELP ME ON THIS MATH QUESTION :)

Mathematics
1 answer:
larisa86 [58]2 years ago
6 0

Equation of a circle in standard form with center (h,k) and radius r is given by :

(x-h)^{2} +(y-k)^{2} =r^{2}

In the given question the center of circle is lying on y axis so h=0 .Radius r=3 Substituting these values in the equation of circle we have:

(x-0)^2+(y-k)^2=3^2

Expanding we have :

x^2+y^2-2yk+h^2=9

Subtracting 9 both sides

x^2+y^2-2yk+h^2-9=0

Comparing this with the equation of circle in general form

A=1,B=1,C=0

If D=-8 then E=7

So option C is the right answer

You might be interested in
Find a. Write your answer in simplest radical form.
NeTakaya

Answer:

\sin(60)  =  \frac{5 \sqrt{3} }{a}  \\  \\  \frac{ \sqrt{3} }{2}  =  \frac{5 \sqrt{3} }{a}  \\  \\ a =  \frac{2 \times 5 \sqrt{3} }{ \sqrt{3} }  \\  \\ a = 10

3 0
2 years ago
The graph represents the atmospheric pressure, in pounds per square inch, as a function of altitude in miles above sea level.
omeli [17]
The answer is B and C. The atmospheric pressure is 14lb/in2 and As the altitude approaches sea level, the atmospheric pressure increases.
3 0
3 years ago
Read 2 more answers
2x - 3y = 16
KIM [24]

Answer:A

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the volume of the square pyramid with base edges 32 mm and slant height 34 mm?
NeX [460]

Answer:

The answer to your question is 10240 mm³

Step-by-step explanation:

Data

length of the base = 32 mm

length of the height = 34 mm

Formula

Volume of a pyramid = 1/3 x Area of the base x length of the height

Process

1.- Calculate the area of the base

Area = side x side

        = 32 x 32

        = 1024 mm²

2.- Find the height of the pyramid using the Pythagorean theorem

height² = 34² - 16²

height² = 1156 - 256

height² = 900

height = 30

3.- Calculate the volume of the pyramid

Volume = 1/3Area x height

             = 1/3(1024 x 30)

             = (30720)/3 mm³

             = 10240 mm³

5 0
3 years ago
How many different right triangles are there with a hypotenuse of lenght 5 cm
Sveta_85 [38]

Answer:

Draw a horizontal line across a page of paper, somewhere in the middle. Mark a point A on the line, toward the left margin.

Spread open a compass to make good sized circle, but so that if the point of the compass is on the point you drew, the pencil fits on the page, both below the top edge and to the left of the right edge of the page. Draw the arc, from roughly the 12 O’Clock position over and down to the intersection of the line segment, at the 3 O’Clock position.

Call the opening of your compass, the radius of the arc you just drew, “5 units”.

Pick any point on the arc between the 12 and 3 positions, B. Drop a line down from that point B, perpendicular to the original horizontal line. Label the point that it intersects the horizontal line, C.

ABC is a right triangle with hypotenuse 5. Do this again with a point a little closer to the 3 O’Clock position. It’s another right triangle with hypotenuse 5.

Indeed, as you get closer to the right, along the arc, the height of the triangle declines, but the width of the triangle increases. The hypotenuse remains 5 in all cases. We picked points on the circle. We could have picked points on the horizontal line first, and raised perpendicular lines until they intersected the circle. Each point forms a distinct right triangle.

There are as many possible right triangles as there are possible points in a line segment.

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • What is 3.574 to 1 decimal place ?
    10·1 answer
  • Find the value of x for which l is parallel to m
    7·1 answer
  • Randy filled out a deposit slip today. He deposited two checks for $123.17 and $34.68 and took out $50 in cash
    8·2 answers
  • The owner of a sportin goods store buys pairs of rollerblades for $60 and marks them up 25%.Several months later,he decided to c
    10·1 answer
  • Work out the surface area of this solid prism.
    12·1 answer
  • What 3/4 x 5/8 in fraction
    9·2 answers
  • Is it true that Confidence intervals are always close to their true population values?
    15·1 answer
  • Math is very complicated. It is very easy to forget, hard to learn, and rarely ever actually used (complicated math at least). B
    15·2 answers
  • Solve for an angle in right triangles. Round to the nearest hundredth
    15·1 answer
  • If 9: x= x4, then x=
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!