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
irga5000 [103]
3 years ago
12

Simplify −2(j^2− k) − 6(j^2 + 3k )

Mathematics
1 answer:
Fantom [35]3 years ago
3 0

Answer:-8j^2-16k

Step-by-step explanation:

First step:-2j^2-(-2)k=-2j^2+2k

Second step:

-6(j^2+3k) use the formula a(b+c)=ab + ac

a=-6 b=j^2 c=3k

-6j^2+(-6).3k

-6j^2-6.3k=-6j^2-18k because we multiplied 6x3=18

So we gather the whole equation And simplify

-2j^2+2k-6j^2-18k

-2j^2-6j^2 +2k-18k(add like terms)6+2=8

-8j^2+2k-18K (subtract Like terms 18-2=16)

And the answer will give -8j^2-16k

You might be interested in
At a restaurant, the bill comes to $80. If you decide to leave a 19% tip, how much is the tip?
tekilochka [14]
15.20 would be the tip

Hope this helps :)
6 0
4 years ago
What is the volume of the cylinder. its 15 units high and a radius of 11.<br><br>​
murzikaleks [220]

Answer:

V = 1815 pi units ^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

V = pi ( 11)^2 * 15

V = 1815 pi

8 0
3 years ago
Do I put a zero in hundeds place or no
Sergio [31]
100 2 zeros...............
7 0
4 years ago
The equation x^3-6x=72 has a solution between 4 and 5. Use a trial and improvement method to find this solution. Give your answe
Slav-nsk [51]

Answer:

4.6

Step-by-step explanation:

x³-6x=72

x³-6x-72=0   .... a solution between 4 and 5

x=4             x³-6x-72= 64-24-72 = -32

x=5             x³-6x-72= 125-30-72 = 23

we have to find an x value that makes x³-6x-72 --> 0

see the attachment, we can find the 0 value of x is between 4.63 and 4.64

‘to 1 decimal place’ of the solution is: 4.6 (4.63 is too small and 4.64 is too big)

6 0
3 years ago
The Empire State Building, the Sears Tower, the
nadezda [96]

The Empire State Building, the Sears Tower, the Canadian National Tower - each of these structures was the tallest in the world at the time they were (Option D) built.

<h3>What is sentence correction?</h3>

Sentence correction or sentence improvement is a type of grammatical practice where a sentence is given with a word or a phrase that requires grammatical changes or improvement.

Now,

  • Here, we are talking about each of the mentioned structures.
  • By grammar, everything used for them must be singular.
  • But as mentioned in the sentence in part D, the plurals "they were" are used, which is the faulty part of the sentence.

Hence, Option D is the correct part that needs correction; the correction would be: "it was built."

To learn more about sentence correction, refer to the link: brainly.com/question/14632568

#SPJ4

4 0
2 years ago
Other questions:
  • Solve the system of equations y=3/2x-2 and 2x+y=-4
    12·1 answer
  • 7. You are painting a large wall mural. The wall length is 3 times the height. The
    12·1 answer
  • Ten years from now Sam will be twice as old as she was three years ago.How old is she now?
    7·1 answer
  • 3. An even with a probability of 0.9 is<br> best described as<br> certain<br> Likely<br> unlikely
    5·2 answers
  • Which equation is an identity? -
    10·2 answers
  • Michael and his friend decide to take the friend's car, which gets 29 miles per gallon, on a 875-mile trip.
    7·2 answers
  • EXPLAIN A car travelsž mile in
    15·1 answer
  • 7th grade help me please :))
    15·1 answer
  • Ralph went for a drive in his new car he drove at a speed of 62.5 miles per hour for 5 hours how many miles did he drive​
    9·2 answers
  • Rupert bought a watch for 7 dollars and 58 cents and sold it for 37 dollars and 90 cents, what is the ratio of selling price to
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!