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
Musya8 [376]
3 years ago
14

Expand the exppresion -7(k-3)

Mathematics
2 answers:
Lana71 [14]3 years ago
8 0

Answer:

-7k+21

Step-by-step explanation:

Tanya [424]3 years ago
3 0

Answer:

-7k +21

Step-by-step explanation:

-7(k-3)

Distribute

-7*k -7*(-3)

-7k +21

You might be interested in
The values shown represent the y-values that correspond to x-values from x = 1 through x = 5.
rjkz [21]
The answer is B because every number is adding up to 6
7 0
2 years ago
What is the value of 4r^2-8 when r=3?
Vlad [161]

Answer:

28

Step-by-step explanation:

So this means to replace the r you see in 4r^2-8 with 3.

Let's do that:

4(3)^2-8

Now to simplify this just use pemdas or a calculator:

4(9)-8     since 3^2 means 3*3=9

36-8

28

5 0
3 years ago
Read 2 more answers
Train a leaves new york at 9am eastern time on monday, headed for los angeles at a constant rate of 40 miles per hour. on the sa
nlexa [21]
We can assume that B leaves Los Angeles not at noon but at 2pm Eastern Time, so 5 hours later than A leaves New York.

In 5 hours A covers 5*40=200 miles. So, A and B together should cover 3,000-200=2,800 miles.

Combined rate = 40 + 60 = 100 miles per hour.

To cover 2,800 miles they'll need 2,800/100=28 hours.

2pm Eastern Time on Monday + 28 hours = 6pm Eastern Time on Tuesday.

Answer: 6:00pm on Tuesday
7 0
3 years ago
Classify the system of equations. -x=1-y -1+y=x+2. coincident, intersecting, parallel
jok3333 [9.3K]
X^y#q1 is the answer that
3 0
3 years ago
Help, is this correct?
Ronch [10]

Answer:

Yes good job!

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Jamie needs to determine the distance across a river. She selects a rock, R, on the opposite river bank. She finds a tree, T, on
    6·1 answer
  • The amount of gasoline remaining in the tank decreases while the mileage driven
    12·2 answers
  • Help please i mark brainliest !!!
    7·1 answer
  • Help‼️‼️the questions is on the paper.
    9·1 answer
  • Use the figure to identify each pair of angles as complementary angles, supplementary angles, vertical angles, or none of these.
    9·1 answer
  • Add 5 to me. Then divide by 7. If you add 12 and then subtract 7 you get 10. What number am I
    12·2 answers
  • Please I need like an explanation of how it was done.
    6·2 answers
  • PLEASE HELP!! (Sorry picture isn't that great)
    6·2 answers
  • Limitation of -4 to the left of the absolute value of x+4 divided by x+4
    15·1 answer
  • -1/4 (24ab + 8c) please help
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!