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
Ratling [72]
3 years ago
15

Factor the trinomial: 4x2 - 8x - 5

Mathematics
2 answers:
shtirl [24]3 years ago
6 0
Correct answer is A.

(2x + 1)(2x - 5)
\\2x(2x-5)+1(2x-5)
\\4x^2-10x+2x-5
\\4x^2-x-5
Juliette [100K]3 years ago
5 0

you can always check by expanding the answers to see what matches

well, you can verify yourself by expanding the answer to check what matches

4x2 - 8x - 5 = 4x2 + 2x -10x -5
= 2x(2x+1) - 5(2x+1)
= (2x+1)(2x-5)
You might be interested in
I have 3 green cubes, 4 red cubes, 2 black cubes, and 6 yellow cubes. What is the probability that I will randomly choose a blac
Strike441 [17]

Answer:

4/75 or 0.05333

Step-by-step explanation:

3+4+2+6=15 elements

2/15= probability to choose a black

6/15 = probability to choose a yellow cube

Probability to choose a black AND (*) a yellow = 2/15*6/15=12/225=4/75 or 0.05333

6 0
2 years ago
FOR EASY BRAINLIEST!!! ANSWER WITH EXPLANATION:<br><br> 1.<br><br> 2.<br><br> 3.<br><br> 4.
spin [16.1K]

Answer:

1) 2

2) 5

3) 6

4) 0

6 0
2 years ago
A rectangle board is 1.2 meters long and 0.8 meters wide. What is the area of the board in millimeters
ivanzaharov [21]

Answer:

1200*800 = 960,000 mm²

Step-by-step explanation:

1 meter is 1000 mm and 0.8 meter is 800 mm

A=lw

5 0
3 years ago
Coffee beans worth $ 10.50 $10.50 per pound are to be mixed with coffee beans worth $ 13.00 $13.00 per pound to make 50 50 pound
MAVERICK [17]

Answer: 30 pounds of coffee beans worth $10.50 per pound was used.

20 pounds of coffee beans worth $13.00 per pound was used.

Step-by-step explanation:

Let x represent the number of coffee beans worth $10.50 per pound that should be mixed.

Let y represent the number of coffee beans worth $13.00 per pound that should be mixed.

50 pounds of beans worth $11.50 per pound is to be made. The total cost of the mixture would be

50 × 11.5 = 575

This means that

10.5x + 13y = 575 - - - - - - - 1

The total number of pounds of each type of coffee used is 50. This means that

x + y = 50

Substituting x = 50 - y into equation 1, it becomes.

10.5(50 - y) + 13y = 575

525 - 10.5y + 13y = 575

- 10.5y + 13y = 575 - 525

2.5y = 50

y = 50/2.5 = 20

x = 50 - 20= 30

6 0
3 years ago
When rounded to the nearest hundred thousand thousand will result in 2,400,000
xenn [34]
This question confused me. I don't know what u are asking
5 0
3 years ago
Other questions:
  • A polynomial function that has roots 1 and 3 + i. The complex conjugates theorem states that must also be a (blank) root.
    5·2 answers
  • If m<br>1= m_2, then m 21 is​
    15·1 answer
  • 1. Is the function linear or nonlinear?
    13·1 answer
  • On one day a Plumber Joe earned $80 on a plumbing job. Out of his earnings he spent $6.85 on tea and snacks, $5.50 on food and $
    10·1 answer
  • What is -47/10 as a terminating decimal​
    14·1 answer
  • You and a friend go out to eat, the food and drinks cost $22.50, and there is a 9% sales tax. How much is the bill? (Round to th
    6·1 answer
  • Jeremy earned $1365 after working for half of a year. He expects to continue working for the same number of hours each month, at
    14·1 answer
  • Help please! i really need help, i cant figure it out on edginuity
    9·2 answers
  • HELP I NEED HELP ASAP
    7·2 answers
  • Can someone help me do this
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!