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
Nookie1986 [14]
3 years ago
15

Re-write the quadratic function below in standard form y= -(x-3)(x+7) Y=?

Mathematics
1 answer:
bazaltina [42]3 years ago
7 0

Step-by-step explanation:

- (x - 3)(x + 7) \\(  - x + 3)(x + 7) \\  -  {x}^{2}  - 7x + 3x + 21 \\  =  -  {x}^{2}  - 4x + 21

You might be interested in
Which coordinate pairs make the equation x-9y=12 true?
asambeis [7]

Answer:

(12,0) and (3, -1) and (0,-4/3)

Step-by-step explanation:

To find if a point makes an equation true, just substitute its x and y values in in the equation and simplify.

1) Let's test the point (12,0). Substitute 12 for x and 0 for y in the equation:

x-9y=12\\(12)-9(0)=12\\12-0=12\\12=12

12 does equal 12, so (12,0) makes the equation true.

2) Let's test the point (0, 12). Substitute 0 for x and 12 for y in the equation:

x-9y=12\\(0)-9(12) = 12\\0-108 = 12\\-108 = 12

However, -108 does not equal 12, so (0,12) does not make the equation true.

3) Let's test the point (3, -1). Substitute 3 for x and -1 for y in the equation:

x-9y=12\\(3)-9(-1) = 12\\3 + 9 = 12\\12 = 12

12 does equal 12, so (3, -1) makes the equation true.

4) Let's test the point (0, -4/3). Substitute 0 for x and -4/3 for y in the equation:

(0) -9(-\frac{4}{3} ) = 12\\0 + \frac{36}{3} = 12\\0 + 12 = 12 \\12 = 12

12 does equal 12, so (0, -4/3) makes the equation true.

8 0
3 years ago
Please answer below :-)
mestny [16]

Answer:

A: 18

Step-by-step explanation:

Hopefully this helps!

3 0
2 years ago
Whats the key way to resolve reading math problems
Lady bird [3.3K]
I would say read it well and then write down an equation or expression to represent the data so its easier for you to understand and/or solve.
6 0
3 years ago
Read 2 more answers
If a ∥ b and e ∥ f, what is the value of y? 87 88 91 92
kap26 [50]
If a || b  and e|| f
then
x + 1 = y
y + z = 180
z = x - 3
x = 91 and y = 92 and z = 88

answer is 92
3 0
3 years ago
Read 2 more answers
TOI
anygoal [31]

n

N       I          G            G          E         RStep-by-step explanation:

7 0
3 years ago
Other questions:
  • What does -2x+9=-4x+27 equal
    14·2 answers
  • Please help me with all 3 parts! :
    11·1 answer
  • Which graph represents the linear function below?
    10·1 answer
  • Does anyone know what 125 divided by 27​
    13·2 answers
  • A spinner is separated into 5 equal pieces, as shown below: A spinner is shown with five colors, brown, blue, purple, orange and
    9·2 answers
  • Help with algebra 3 please
    10·1 answer
  • Given m||n, find the value of x.<br> +<br> (5x+2)<br> (4x+6)°
    7·1 answer
  • The area of rectangular garden. 50m long is 450 sq.m. Find the width of the garden
    8·1 answer
  • A taxi service charges a $1.95 flat rate plus $0.55 per mile. Jason only has $12 to spend on a ride. Which graph best represents
    7·1 answer
  • Will mark brainliest please help ASAP Complete the square to find the vertex of this parabola x^2+14x-y-14=0
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!