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
expeople1 [14]
3 years ago
8

100 POINTS PLEASE HELP

Mathematics
1 answer:
yanalaym [24]3 years ago
5 0
I believe it is A but i am not 100% sure
You might be interested in
PLEASE HELP
valina [46]

Answer:

Step-by-step explanation:

You have 3 unknowns: a, b, and c.  It's our job to find them algebraically.  I'm going to start with the point where x = 0 and y = 7.  You'll see why in a minute.  Filling in the standard form of a quadratic

y=ax^2+bx+c  using (0, 7):

7=a(0)^2+b(0)+c  gives you that c = 7.  We will use that value now when we write the next 2 equations.  Now the point (-2, 19):

19=a(-2)^2+b(-2)+7  and

19=4a-2b+7 so

12 = 4a - 2b

Now for the next point (-1, 12):

12=a(-1)^2+b(-1)+7  and

12=a-b+7  so

5 = a - b

Now we have a system of equations (the 2 bold font equations) that we will solve by elimination:

 12  =  4a  -  2b

  5  =   a   -    b

Multiply the bottom equation by -4 to get a new system:

 12  =  4a  -  2b

-20  = -4a  +  4b

Add those together to get rid of the a terms and end up with

-8 = 2b so

b = -4

Now we can sub in -4 for b to solve for a.  I'm using the second bold type equation to do this:

5 = a - (-4) and

5 = a + 4 so

a = 1 and the equation for the quadratic function is

y=x^2-4x+7

7 0
3 years ago
Evaluate 725+ 41092 -5688​
Mazyrski [523]

Answer:

36129

Step-by-step explanation:

6 0
2 years ago
Which statements are true about the circle shown? Check all that apply.
otez555 [7]

Step-by-step explanation:

  1. A circle is only composed of the points on the border
  2. The distance around the circle is called circumference

6 0
3 years ago
The perimeter of a rectangle can be found using the formula P = 4 s .<br><br><br> True or False
Minchanka [31]

Answer:

{ \underline{ \sf{true}}}

6 0
2 years ago
Read 2 more answers
Translate <br> eighty-eight less than m is smaller than −176
xeze [42]

Answer:

88

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • 10 POINTS!.A sculptor is planning to make two triangular prisms out of steel. The sculptor will use △ABC for the bases of one pr
    13·1 answer
  • jenny purchased a prepaid phone card for $30 . long distance calls cost 24 cents a minute using this card. jenny used her card o
    14·2 answers
  • Megan owns a clothing boutique. The table below represents the profit made, in dollars, every year since 2010, where x represent
    8·1 answer
  • Write the quadratic equation in standard form.
    8·2 answers
  • ABCD is a quadrilateral. P is a point. P is closer to C than to D. P is also closer tothe line AB than the line AD. Find and sha
    10·1 answer
  • If 45 cookies will serve 15 students, how many cookies are needed for 90 students?
    13·1 answer
  • Ms. Diaz has 3 5/6 pounds of grapes.
    12·1 answer
  • HELP: Find the angle measure of angle Z. *<br> A.30<br> B.5<br> C.25<br> D.15
    12·1 answer
  • Triangle ABC is shown below with its given side length measurements.
    14·1 answer
  • Do yall want points for answering? Heres one-
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!