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
lbvjy [14]
3 years ago
9

Please help ASAP! what is x=-b/2a?

Mathematics
1 answer:
valina [46]3 years ago
5 0

This is the formula to solve for the vertex.

Example Question:

Find the vertex of y = -0.5x^2 + 100x

-b/2a = -100/2(-0.5) = -100/-1 = 100

The x coordinate of the vertex is 100.

Best of Luck!

P.S. this is 1000th question i've answered :)

You might be interested in
Someone help with this please
r-ruslan [8.4K]
The Answer is B. I hope this helped.
6 0
3 years ago
a bag contains 5 red 3 green 4 blue and 8 yellow marbles find the probability of randomly selecting a green marble and then a ye
alexira [117]
The probability of picking a green marble the first time is 3/20 and the probability of picking a yellow marble the second time is 8/20.   
probabilities are heavily related to percents so it would make sense that the probability of picking a color would be the number of that color divided by the total number.

note that it is really important that the problem said that the marble was replaced.  If the marble was not replaced, the probability of picking a yellow marble the second time would be 8/19 if the first marble picked was not a yellow one.

I hope this helps.
5 0
3 years ago
Of the students in Rosalie's dance class 29 out of 59 have participation in dance class before. (options)
oksano4ka [1.4K]

Answer:

I would believe its 1/2



5 0
3 years ago
Help! im in class right now and dont have much time!
Hatshy [7]

Answer:

\frac{1}{m^{8} }

Step-by-step explanation:

m^{-8} p^{0}

m^{-8} 1       ∴Zero power of any number is equal to 1

\frac{1}{m^{8} }            

6 0
3 years ago
Read 2 more answers
Which equation has a graph that is perpendicular to the graph of -x + 6y = -12?
serious [3.7K]

Answer:

c) 6x + y = -52  is required equation perpendicular to the given equation.

Step-by-step explanation:

If the equation is of the form    : y = mx  + C.

Here m = slope of the equation.

Two equations are said to be perpendicular if the product of their respective slopes is -1.

Here, equation 1 :  -x + 6y = -12

or, 6y = -12  + x

or, y = (x/6)  - 2

⇒Slope of line 1 = (1/6)

Now, for equation 2  to be  perpendicular:

Check for each equation:

a. x + 6y = -67       ⇒  6y = -67  - x

or, y = (-x/6)  - (67/6)      ⇒Slope of line 2 = (-1/6)

but \frac{1}{6} \times \frac{-1}{6}  \neq -1

b. x - 6y = -52   ⇒  -6y = -52  - x

or, y = (x/6)  + (52/6)      ⇒Slope of line 2 = (1/6)

but \frac{1}{6} \times \frac{1}{6}  \neq -1

c. 6x + y = -52    

or, y =y = -52  - 6x      ⇒Slope of line 2 = (-6)

\frac{1}{6} \times (-6)  =  -1

Hence, 6x + y = -52  is required equation 2.

d. 6x - y = 52  ⇒  -y = 52  - 6x

or, y = 6x   - 52      ⇒Slope of line 2 = (6)

but \frac{1}{6} \times 6  \neq -1

Hence,  6x + y = -52  is  the  only required equation .

3 0
3 years ago
Read 2 more answers
Other questions:
  • Solve + (-4) = -2. 6 -18 18 -2
    9·1 answer
  • Whats the distance between point A (-2,-1) and point B (3,2)
    15·1 answer
  • What is the vertex of y=1/2(x+4)^2+1
    13·1 answer
  • 8 1/6 divide 1 7/8? <br><br> The quotient is close to _____
    11·1 answer
  • Subtract and simplify <br> 1/6m - (- 5/8m + 1/3)
    9·1 answer
  • Can someone please help I will give brainliest and please if you don’t know the answer don’t put anything due at 12:00
    6·1 answer
  • Factor the sum of 6y + 8 as a product of the GCF and a sum
    11·2 answers
  • Describe how the area of a rectangle will change if its width remains constant but its length is halved
    13·1 answer
  • Find the value of X that will make L||B
    6·1 answer
  • What is the surface area of the composite solid? a rectangular prism with a length of 2 meters, width of 8 meters, and height of
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!