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
allochka39001 [22]
3 years ago
6

If the coefficient a in the general quadratic equation is equal to 9, what is the focal length for the

Mathematics
1 answer:
lutik1710 [3]3 years ago
5 0

Answer:

9

Step-by-step explanation:

Let the equation of a parabola be

y^{2} = 4ax.

Then , focal length of the parabola is a.

As , (0,0) is the vertex and its focus is (a,0)

Thus, focal length comes out to be a.

Here,

a is given as 9 units .

Thus focal length of the parabola, d, equals to 9 units

You might be interested in
In quadrilateral ABCD, the measure of angle A exceeds the measure of angle B by 20 degrees. Also, the measure of angle D is twic
KATRIN_1 [288]

Answer:

in any quadrilateral, the sum of the interior angles is 360 degrees, so angles

a+b+c+d = 360 degrees.

But a = 2b

and b = 2c

and c = 2d so...

b = 4d and

 

a = 8d so we have:

8d+4d+2d+d = 360

15d = 360 and

d = 24 degrees

c = 2(24) = 48 degrees and

b = 4(24) = 96 degrees and

a = 8(24) = 192 degrees.

7 0
4 years ago
Do you multiply or divide calories?
harina [27]

Answer:

Multiply

Step-by-step explanation:

6 0
3 years ago
Two numbers are the ratio 3:2. If the smaller number is 24, find the larger number.
erastova [34]
Basically, you try to find 2 numbers that divide to 3/2. So, using trial and error, plug in numbers for x in this expression: x/24=3/2, and solve to find the number that makes it true. You end up getting 36/24=3/2. Hope that helps! :)
5 0
3 years ago
How to solve 14d-2d=-84
irinina [24]
First combine like terms:
14d+-2d=12d

Then do -84 divided by 12 = -7
D= -7


3 0
4 years ago
Read 2 more answers
The difference between the annual and semi-annual compound interest on a sum of money is Rs 482 at the rate of 20 % per annum fo
kompoz [17]

Answer:

→ successive Rate of 20% for 2 Years = 2*20 + (20*20/100) = 40 + 4 = 44%.

And, when interest is compounded semi - Annually,

→ Rate = (20/2) = 10% .

→ Time = 2 * 2 = 4 Years.

So,

→ successive Rate of 10% for 4 Years = (2*10 + (10*10/100) = 21% Now, => 21*2 + (21*21/100) = 42 + 4.41 = 46.41% .

A/q,

→ (46.41%) - 44% = 482

→ 1% = (482/2.41)

→ 100% = (482/2.41) * 100 = Rs.20000 (Ans.)

Step-by-step explanation:

Answer from Gauth math

6 0
3 years ago
Other questions:
  • Four graphs are shown below:
    7·1 answer
  • Which of the following statments do not describe the exspression 5 - 3c?
    8·1 answer
  • Solve 3x-4= 7 you may use the flowchart to help you if you wish
    5·2 answers
  • A culinary club earns $843 from a dinner service. They sold 31 adult meals and 54 student meals. An adult meal costs $8 more tha
    9·1 answer
  • How many solutions does this system have? y = 3 x minus 5. y = negative x + 4. one two an infinite number no solution
    8·1 answer
  • En un salon de clases cuando se colocan cuatro alumnos en cada banca, 3 de ellos quedan sin puesto y cuando se colocan de a 5 en
    7·1 answer
  • How do you write 280% as a fraction or mixed numbers?
    7·2 answers
  • What is the product of (- **(-3)?
    15·1 answer
  • Solve the formula C= 3.14*d ?
    12·1 answer
  • Which equation can be used to solve for x in the following diagram?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!