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
Sergeu [11.5K]
3 years ago
10

Which statement is true about the extreme value of the given quadratic equation?

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
3 0

Answer:

Option B.  The equation has a maximum value with a y-coordinate of -21.

Step-by-step explanation:

The correct quadratic equation is

y=-3x^{2}+12x-33

This is a vertical parabola open downward (the leading coefficient is negative)

The vertex represent a maximum

Convert to vertex form

Factor -3

y=-3(x^{2}-4x)-33

Complete the square

y=-3(x^{2}-4x+2^2)-33+12

y=-3(x^{2}-4x+4)-21

Rewrite as perfect squares

y=-3(x-2)^{2}-21

The vertex is the point (2,-21)

therefore

The equation has a maximum value with a y-coordinate of -21

You might be interested in
HELP ME PLEASEEEEEEEEEEEEEEEEE
katrin2010 [14]
The answer is just x
6 0
3 years ago
Read 2 more answers
Phil is a commercial fisherman. He keeps 5 salmon for every 8 cod he catches. If Phil keeps 15 salmon, how many cod will he keep
sweet-ann [11.9K]
15 / 5 = 3

3 * 8 = 24 cod
5 0
3 years ago
Peter cycles for 1/4 hours at a speed of 20 km/h
yKpoI14uk [10]

Answer:

His average speed is

12 km/hr

.

Step-by-step explanation:

Remember the triangle of Speed, Distance and Time. If you remember it, you'll ace these kinda questions.

I had trouble with these formulas but the triangle helped me a LOT! Anyways, let's get back to the question. The formula for average speed is pretty much the same as the formula for just speed. The average speed formula is

Average speed

=

Total Distance

Total Time

So......

48 km

4 hr

=

12 km/hr

My source

I hope this explanation helps you!

5 0
2 years ago
What’s 2, 4, 6??????????
seraphim [82]
Use Photomath trust me
6 0
2 years ago
Shhhh Help me and you get Star ratings
san4es73 [151]

Answer: find the measure of <6

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Write an equation of the line y-intercept =-11/2
    6·1 answer
  • Need someone to help that KNOWS the ANSWER PLSSS HELP
    14·1 answer
  • h = -16t^2 + 541? its been forever since i had to do this and frankly I'm completely lost. please if you answer this can you tea
    6·1 answer
  • A cell phone company charges a monthly fee plus $0.25 for each text message. The monthly fee is $30.00 and you owe $59.50. Find
    9·1 answer
  • How do you convert a fraction to decimal
    11·2 answers
  • There are four cards numbered 1 through 4. The number 2 card is chosen randomly and not replaced. Find the probability of choosi
    12·1 answer
  • I NEED HELP WIT MATH!!!!!!!!!!
    11·2 answers
  • I need help please?!!!!
    15·2 answers
  • WHICH WHAT IS CORRECT
    7·1 answer
  • HELP MEEEE PLEASEEEE!!!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!