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
Vera_Pavlovna [14]
4 years ago
9

Please help with this question.

Mathematics
1 answer:
earnstyle [38]4 years ago
6 0

The maximum occurs at x = -b/2a

Using f(x) = ax^2 +bx +c

Replace a and b in the equation.

a = 2

b = 8

Now you have x = -8 / 2(2)

x = -8 / 4

x = -2

The maximum is -2

You might be interested in
Rewrite the quadratic function in vertex form.<br> Y=5x^2-10x+2
Natalka [10]

Answer:

y = 5x2 + 10x - 15

We want this in format y = a(x-h)2 + k

where the vertex will be at (h,k)

y = 5(x2+2x) - 15

Complete the square on x2+2x

y = 5(x2+2x+1) - 15 - 5

We subtract 5 at the end because we are actually adding 5(1) = 5

so we need to remove it also to keep the total equal

y = 5(x+1)2 - 20

The vertex is at (-1,-20)

3 0
4 years ago
Carl bought 5 jars of relish at a cost of $1.76 per jar. He also bought 5 cans of tuna at a cost of $0.84 pre can . How much did
MArishka [77]
1.76x5=
8.8
So, carl spent $8.80 on relish
Hope this helps!
3 0
4 years ago
Please help asap 50 pts
gregori [183]
I believe the answer is C. It doesn't make sense to drop an object from -16 feet, and it doesn't make sense to have a -120 in the equation. It should be positive for it to come out right.
3 0
3 years ago
Read 2 more answers
What is a rational number between 7.7 and 7.9
Luda [366]
Hey mate ,

here is your answer

**********************

The average between any two rational numbers is also rational.
(7.7 + 7.9)/2 = 7.8
7.8 is rational because it can be written as a fraction with integer numerator and denominator (39/5) and it is also a terminating decimal.

7 0
3 years ago
Read 2 more answers
What is the perimeter of the triangle
KengaRu [80]

The perimeter of the triangle is 40 units

<h3>Perimeter of a triangle</h3>

From the question, we are to determine the perimeter of the given triangle

From the given diagram, we can observe that the triangle is a right triangle

The vertical length of the triangle is 15 units

and the horizontal length of the triangle is 8 units

Thus,

We can find the hypotenuse by using the<em> Pythagorean theorem </em>

Let the hypotenuse be h

Then,

h² = 15² + 8²

h² = 225 + 64

h² = 289

h = √289

h = 17 units

Now, for the perimeter of the triangle

The perimeter of a triangle is the sum of all its three sides

Thus,

The perimeter. P, of the triangle is

P = 15 + 8 + 17

P = 40 units

Hence, the perimeter of the triangle is 40 units

Learn more on Calculating perimeter here: brainly.com/question/17394545

#SPJ1

4 0
2 years ago
Other questions:
  • Jonathan rides his bicycle at an average rate of 17.5 miles per hour. If he rides 2 3/4 hours at this rate of speed, how far doe
    12·1 answer
  • Some help and/or explanation would be greatly appreciated!! :)
    11·2 answers
  • Blue River is 212 miles long. What is the length of the river on the map, if the scale is 1 inch : 50 miles?
    6·1 answer
  • What single transformation was applied to triangle A to get triangle B
    9·1 answer
  • The price of a cap is increased by 25%.By how much percent should its price be
    10·1 answer
  • A recipe includes 66 cups of flour and two thirds 2 3 cup of buttermilkbuttermilk. Write the ratio of the amount of flour to the
    7·1 answer
  • Which numbers in the list are less than -0.94?
    14·1 answer
  • What is the value of
    13·1 answer
  • I believe this is 10x but I don’t know
    6·2 answers
  • Write down the indicated trigonometric value and write as decimal and round to thousandths place
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!