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
Lerok [7]
3 years ago
6

Re-write the quadratic function below in Standard Form y= –2(x + 5)(x – 4)

Mathematics
1 answer:
Naddik [55]3 years ago
6 0

Answer:

y = - 2x² - 2x + 40

Step-by-step explanation:

Standard form of a quadratic is y = ax² + bx + c : a ≠ 0

Given

y = - 2(x + 5)(x - 4) ← expand factors using FOIL

  = - 2(x² - 4x + 5x - 20)

  = - 2(x² + x - 20) ← distribute parenthesis by - 2

  = - 2x² - 2x + 40 ← in standard form

You might be interested in
Work out the value of R. Give your answer in standard form to an appropriate degree of accuracy.
Mumz [18]

Answer:

R = 8,228,571.43 (Approx)

Step-by-step explanation:

Given:

R = x²/y

x = 4.8 x 10⁵

y = 2.8 x 10⁴

Find:

Value of R

Computation:

R = x²/y

R = (4.8 x 10⁵)²/ (2.8 x 10⁴)

R = 23.04 x 10¹⁰ / (2.8 x 10⁴)

R = 8.22857.. x 10⁶

R = 8,228,571.43 (Approx)

4 0
3 years ago
18 Ib. Then her dog loses another 1 lb. Finally, it
Pavel [41]

Answer:

17 lb I guess 8 don't think the question is full

Step-by-step explanation:

the question is half

8 0
3 years ago
Andre tried to solve the equation 1/4(x+12)=2 what was his mistake?
GarryVolchara [31]

Step-by-step explanation:

1. 1/4(x + 12)=2 - first isolate X'

         - 12 -12

2. 1/4(x) = -10  - 1/4  since its a fraction, you'll have to subtract not divide

-1/4    - 1/4

3. x = -10.25

Andre did the first step correctly, but on the second step he just divided 1.4 by -10, instead of subtract 1/4 from both sides.

8 0
3 years ago
Please help me with A,B,c,D​
g100num [7]

Answer:

wat is this, my g this looks like a test

7 0
3 years ago
The bill at a restaurant came to $136.40 the patrons decide to leave a 15% tip what was the total tip including the bill
iogann1982 [59]
Answer: $156.86

Step by Step:

136.40 x .15 = 20.46

136.40 + 20.46 = 156.86
3 0
3 years ago
Other questions:
  • 40 out of 50 as a percentage
    12·2 answers
  • HELP PLS HERE IS IT NEED IT
    8·1 answer
  • If r = 9 units and h = 6 units, what is the volume of the cylinder shown above?
    7·2 answers
  • What is the quotient written in scientific notation? 6 x 10^24 /8 x 10^8
    15·2 answers
  • What are the four elements found in deductive structure?
    14·1 answer
  • PLEASE HELP !!
    9·1 answer
  • a family has two cars. the first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of
    10·1 answer
  • Find the surface area of the triangular prism shown below.<br> 64557
    11·1 answer
  • 11/12 times4/5 estimate
    9·1 answer
  • Jake bought four peaches. The first two peaches weigh 2/6 of a pound, what could the third and fourth peach weigh in 1/6 of a po
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!