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
Free_Kalibri [48]
2 years ago
13

What is equivalent to 4x -8? a: 2 (2x - 6) b: 2 (2x - 4) c: x - 8 + 3x

Mathematics
1 answer:
viktelen [127]2 years ago
5 0

Answer:

The answer is b) 2(2x-4) and c)

Step-by-step explanation:

Okay lets try a) 2(2x-6)

2 x 2x - 2 x 6= 4x-12

b) 2(2x-4)

2 x 2x - 2 x 4=4x-8

c) : x-8+3x

x+3x-8=4x-8

You might be interested in
If you have a cubic polynomial of the form y = ax^3 + bx^2 + cx + d and lets say it passes through the points (2,28), (-1, -5),
Marrrta [24]

Answer:

a = 3

b = 2

c = 0

d = -4

Step-by-step explanation:

Form 4 equations and solve simultaneously

28 = a(2)³ + b(2)² + c(2) + d

28 = 8a + 4b + 2c + d (1)

-5 = -a + b - c + d (2)

220 = 64a + 16b + 4c + d (3)

-20 = -8a + 4b - 2c + d (4)

(1) + (4)

28 = 8a + 4b + 2c + d

-20 = -8a + 4b - 2c + d

8 = 8b + 2d

d = 4 - 4b

Equation (2)

c = -a + b + d + 5

c = -a + b + 4 - 4b+ 5

c = -a - 3b + 9

28 = 8a + 4b + 2c + d (1)

28 = 8a + 4b + 2(-a - 3b + 9) + 4 - 4b

28 = 6a - 6b + 22

6a - 6b = 6

a - b = 1

a = b + 1

220 = 64a + 16b + 4c + d (3)

220 = 64(b + 1) + 16b + 4(-b - 1 - 3b + 9) + 4 - 4b

220 = 60b + 100

60b = 120

b = 2

a = 2 + 1

a = 3

c = -3 - 3(2) + 9

c = 0

d = 4 - 4(2)

d = -4

8 0
3 years ago
Read 2 more answers
Factor 42v^3 – 21v^2 + 34v – 17
BartSMP [9]

Answer:

(2v-1)(21v^2+17)

Step-by-step explanation:

add and subtract the second term to the expression and factor by "grouping"

answer should be:

(2v-1)(21v^2+17)

4 0
3 years ago
The coach recorded how fast his runners ran 1 mile. Emmett ran a mile in 9.73 minutes Kate ran a mile in 10.87 minutes how many
igor_vitrenko [27]

Complete Question

The coach recorded how fast his runners ran 1 mile. Emmett ran a mile in 9.73 minutes, Kate ran a mile in 10.87 minutes, and Rubin ran a mile in 8.46 minutes. How many more minutes did Emmett run than Robin?

a. 1.37 minutes

b. 1.27 minutes

c. 2.27 minutes

d. 1.27 seconds

Answer:

1.27 minutes

Step-by-step explanation:

Emmett ran a mile in 9.73 minutes

Kate ran a mile in 10.87 minutes

Rubin ran a mile in 8.46 minutes.

How many more minutes did Emmett run than Robin?

This is calculated as:

Number of minutes Emmett ran - Number of minutes Rubin ran

= 9.73 minute - 8.46 minutes

= 1.27 minutes

Option b is correct

5 0
3 years ago
Find the difference. 8.25 - (-1.9) <br> A.8.44 <br> B.6.35 <br> C.10.15 <br> D.-6.35
quester [9]

Answer:

C. 10.15

Step-by-step explanation:

If you left 8.25 and changed the minus sign to a addition sign and the -1.9 to just 1.9 and then add 8.25 + 1.9 together you will then get 10.15 a way to remember this is “leave, change, change,” you leave the first number and change the subtraction and negative number sign. :)

3 0
3 years ago
Read 2 more answers
The air pressure inside Jason’s bike tires decreases by about 6% each week. The original pressure was 45 pounds per square inch
Brrunno [24]
Compound percentage reduction can be calculated by multiplying the initial number by (1-x)^t where x is the percentage reduction (/100, i.e. 1% reduction is 0.01), and t is the number of times it has reduced.

So:
a) p=45(1-0.06)^t=45*0.94^t
Where t is the number of weeks.

We can then just substitute in to work out the final pressure:
b) p = 45*0.94^6 = 31psi
5 0
3 years ago
Other questions:
  • You fly in a helicopter for 1 hour that goes at a speed of 240 km per hour how far did u go
    5·1 answer
  • if there is a vertical line that intersects the graph of a relation in more than one point then the relation is a function true
    14·1 answer
  • Help I don’t understand this
    6·2 answers
  • Help plz I dont understand ​
    9·2 answers
  • Every 5 1/2 cups of flour weighs 1 9/16 lbs. Use a unit rate to show how you could determine if there are more than or less than
    9·1 answer
  • What is 3x-2x equal to
    9·1 answer
  • What is the solution? <br> I will mark you as the brainliest abswer!
    15·2 answers
  • Simplify <br> (7-8i)+(-12-4i)
    9·2 answers
  • The function f is defined by f(x)=7x - 5. Use this formula to find the following
    8·2 answers
  • Graph y &lt; - 4/3x + 3
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!