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
Neporo4naja [7]
3 years ago
14

How to do the problem

Mathematics
1 answer:
vichka [17]3 years ago
4 0
12.
1: n•n= n^2
2: n•(-2)= -2n
3: 2•n= 2n
4: 2•(-2)= -4
=n^2-2n+2n-4
= n^2-4
You might be interested in
Andrew is riding his bike. He biked a distance of 14 miles at a rate of 7 miles per hour. Using the distance formula, d = it, so
Assoli18 [71]

Answer:

120 minutes

Step-by-step explanation:

D=it 14/7 is 2, multiply 2 by 60 you get 120

5 0
2 years ago
Math help ✄✐
brilliants [131]

D) as age increases, weight increases by 5

4 0
3 years ago
An object’s volume is 0.12 kL. What is its volume in liters?
mrs_skeptik [129]

Answer:

120L

Step-by-step explanation:

Given quantity;

    0.12kL to L

Solution:

Convert the given quantity to Liters;

      1000L  = 1kL

So.

        1kL gives 1000L

        0.12kL will be 1000 x 0.12  = 120L

3 0
3 years ago
You are 30 yards (90 feet) away from the goalposts on a football field. The angle of elevation of your line of sight to the top
Kay [80]
Check the picture below.

make sure your calculator is in Degree mode.

5 0
3 years ago
HELP PLEASE!!! SHOW WORK!! A professional pianist spends an average of 45 hours practicing the piano in a three-week period. Usi
kicyunya [14]

Answer:

An average of about 450 hours; You could say something along the lines of "If the pianist who practices an average of 45 hours per week practices everyday for three months, they would play for approximately 450 hours total."

Step-by-step explanation:

We could write an equation to make it simpler to figure out, making the number of hours after three months = n, 4 = weeks in a month, 3 = the number of months, and 45 = the number of hours after a week. As an equation, it would look like:

45 * 3 * 4 = n

We know 3 *4 is 12, so the equation becomes 45 * 12 = n.

45 * 12 = 540, therefore the pianist practices an average of approximately 540 hours over a three-month period of time.

4 0
3 years ago
Other questions:
  • Simply the expression.
    15·1 answer
  • A student concluded that the inequality −3+2y≤4x is equivalent to the inequality y≥2x+32, as shown below. Describe and correct t
    15·1 answer
  • Draw an area model and then solve using the standard algorithm
    14·1 answer
  • Is there a triangle whose angles have these measures in degrees?<br> A) Yes<br> B) No
    9·1 answer
  • 10x – 2 – 6x = 3x – 2 + x
    11·2 answers
  • PLZZZ HELP ME WITH THIS
    12·1 answer
  • A local television company determines that the revenue it gets from running ads doubles each year. The function graphed models t
    15·1 answer
  • Determine if the equations represent lines that are parallel, perpendicular, or neither.
    13·1 answer
  • EASY, PLEASE HELP, ASAP
    7·2 answers
  • Someone can you please help me thank you 12 points
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!