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
babymother [125]
3 years ago
7

Find the coordinate of the vertex of the following parabola algebraically! y=-4x² – 20

Mathematics
1 answer:
tester [92]3 years ago
5 0

Answer:

The vertex of a parabola is found by

'h' position = -b / (2 * a) = 0 / 2 * -4 = 0

'y' position = ah^2 + bh + c = -4*0 + 0 -20

vertex = (0, -20)

Step-by-step explanation:

You might be interested in
in the right triangle shown, A= 30° and BC =6 How long is AB?Answer exactly using a radical if needed.​
nasty-shy [4]

Answer: 10.4

Step-by-step explanation:

According to the right angle triangle, the longest side is the hypothenus, d side facing the angle is the opposite and the other side is the adjacent

So we this we will use tan

Tan 30= opp/adj

Tan 30= 6/x

Cross multiply

Xtan30= 6

X= 6/tan 30

X= 6/1/square root of 3

X= 6 x square root of 3

X= 10.39 ~ 10.4

6 0
3 years ago
The ratio of pants to shots that John has is 2:3. If John has 8
boyakko [2]

Answer:

12 shirts

Step-by-step explanation:

Since John has 8 pants and 2 x 4 is equal to 8. Then you must multiply the number of shirts by 4 (3 x 4) to give you the number of shirts, which is 12.

Check:

2/3 is equivalent to 8/12

Hope this helps :)

3 0
3 years ago
If you have 13$ and each apple costs 30$, how much more money do i need to get 2 apples
Aleks04 [339]
You will need 47$
(30-13) + 30 =47
7 0
3 years ago
Read 2 more answers
pencils are sold in packages of 10 and erasers are sold in packages of 6 what is the least number of pencils and erasers you can
pantera1 [17]
The first time 6 reaches a ten is 30, which is times 5, so 5 erasers, and then easily 3 pencils, so the least amount is 5 erasers and 3 pencils :)
4 0
3 years ago
What is the slope of the equation that is represented by the table below?
yuradex [85]

Answer:A

Step-by-step explanation:

You use the equation:

m= (y2-y1) ÷ ( x2-x1)

m= (12-9) ÷ (2-1)

m= 3÷1

m= 3

3 0
4 years ago
Read 2 more answers
Other questions:
  • Someone please help?
    5·1 answer
  • A circle has a radius of 13in . find the radian measure of the central angle ? that intercepts an arc of length 15in
    9·1 answer
  • Kenedy shares 2 oranges equally with two friends how much of an orange does each friend get
    8·1 answer
  • What is the theoretical probability of picking a blue from the bag of marbles. Answer in simplest form. P(blue)
    11·1 answer
  • Will you help me plz
    7·1 answer
  • 3. Below is Linbell's weekly work
    12·2 answers
  • Find the volume of the cylinder.
    7·2 answers
  • Solve for x: tan(180-ø).tan(90+ø)+xcos(90+ø).(cos90-ø) =sinø.(sin180-ø) ​
    15·2 answers
  • Camila has a points card for a movie theater.
    7·1 answer
  • I need reassurance that my answer is right. Is this a rotation? :')
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!