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
RUDIKE [14]
3 years ago
9

Factor completely 2x2 − 2x − 40

Mathematics
1 answer:
Montano1993 [528]3 years ago
4 0

Answer:

2(x-5)(x+4)

Step-by-step explanation:

2x^2 − 2x − 40

Factor out a 2

2(x^2 -x -20)

What 2 numbers multiply to -20 and add to -1

-5*4 = -20

-5+4 = -1

2(x-5)(x+4)

You might be interested in
A subway car travels at a rate of 32 meters per second. How far does it travel in 16 seconds? Use d= r x t
Simora [160]

Answer:

I think 512 feet in 16 seconds.

6 0
3 years ago
My cousin needs help with this
9966 [12]

Answer:

B

Step-by-step explanation:

if she practiced for 4 hours, we can go to the 4-hour mark and go upward until we see the dot. the dot lands on 3 hits every 4 hours so we can safely assume its B

4 0
2 years ago
Read 2 more answers
How should the decimal point in 34.05 be moved to determine the product 34.05×106 ?
r-ruslan [8.4K]

Answer: Six places to the right

Step-by-step explanation:

For this exercise it is important to remember that. by definition, the exponent of a number indicates the number of times you must use the same factor to multiply.

Given:

b^n

"b" is the base and "n" is the exponent.

In this case, you have the following multiplication provided in the exercise:

34.05*10^6

Notice that the base 10 has an exponent 6. This indicates the following:

10^6=10*10*10*10*10*10=1,000,000

By definition, moving the decimal point 6 places to the right (because there are six zeros), is the same as multiplying the decimal number 34.05 by 1,000,000.

  Therefore, based on the explained, when you move the decimal point six places to the right, you get the following product.

34.05*10^6=34,050,000

3 0
3 years ago
Plzzzz help !!!! 15 points
ArbitrLikvidat [17]

Answer:

1. 17,20

2. 40,80

Step-by-step explanation:

1. 5+3=8

8+3=11

11+3=14

14+3=17

17+3=20

pattern is +3

2. 2.5*2=5

5*2=10

10*2=20

20*2=40

40*2=80

pattern is *2

6 0
3 years ago
Read 2 more answers
Need help also if you can can you do it step-by-step explanation please thank you 3(c + 8) = 28<br>​
skelet666 [1.2K]

Answer:

c = 4/3

Step-by-step explanation:

3(c + 8) = 28

Since we have paranthesis, first use the dsitributive property [multiply 3 by c and 8]

3(c + 8) = 28

3c + 24 = 28

To find the value of c, you must have c alone on one side, so subtract 24 from both sides

3c + 24 = 28

3c = 4

Now, divide by 3 to both sides to get your answer

3c = 4

c = 4/3

Therefore, the answer is 4/3!

I hope this helps! :)

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is defined as displacement over change in time? Question 5 options: Displacement Speed Velocity Accelerat
    12·1 answer
  • Carla traveled 320 miles in 5 hours. At this rate, how far will Carla travel in 7 hours?
    15·1 answer
  • Select the coordinates of two points on the line y = 8.
    13·1 answer
  • Find an equation of the circle that has center (1, -1) and passes through (5, -6).
    14·1 answer
  • Whats is the value of x in 9/5x = 2/3
    9·1 answer
  • What is the equation of the function that is graphed as line a? y= 2x - 1 y= -x y = 3x y= - x - 1
    11·1 answer
  • How long is 70% of 60 mins​
    9·2 answers
  • Giving 25 points + brainliest if its correct
    14·1 answer
  • Plz help!!
    6·2 answers
  • Or
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!