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
miv72 [106K]
3 years ago
15

Subtract -2k3 + k2 - 9 from 5k3 - 3k + 7.

Mathematics
2 answers:
tankabanditka [31]3 years ago
8 0
5k3-3k+7-(-2k3+k2-9)
basically rewrite with simple algebra principles
15k-3k+7-(-6k+2k-9)
split up the parenthesis
15k-3k+7+6k-2k+9
sort them
15k-3k+6k-3k+7+9
short down by adding up the similar factors
answer: 18k+18
factorise
18(k+1)
both forms are right
Sever21 [200]3 years ago
7 0

Answer:  The required value is 7k^3-k^2-3k+16.

Step-by-step explanation:  We are given to subtract the polynomial -2k^3+k^2-9 from 5k^3-3k+7.

That is, we need to find the value of S, where

S=(5k^3-3k+7)-(-2k^3+k^2-9)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To perform the given subtraction, we need to combine the like terms as follows :

S\\\\=(5k^3-3k+7)-(-2k^3+k^2-9)\\\\=5k^3-3k+7+2k^3-k^2+9\\\\=(5+2)k^3-k^2-3k+(9+7)\\\\=7k^3-k^2-3k+16.

Thus, the required value is 7k^3-k^2-3k+16.

You might be interested in
9x2 - 52x + 33 = -10x - 16<br><br> Quadratic Equation
yawa3891 [41]

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

If you are looking for the standard form, here it is!!!!!

Answer:

9x^2 - 42x + 49 = 0

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

6 0
3 years ago
Read 2 more answers
REEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
olganol [36]

Answer:

first option

Step-by-step explanation:

3x - 7y and - 7y + 3x are equivalent expressions

3x is positive and - 7y is negative

As long as the signs on their coefficients do not change then they can be reversed, that is

3x - 7y = - 7y + 3x

3 0
3 years ago
The Kennedy High School cross-country running team ran the following distances in recent practices: 3.5 miles, 2.5 miles, 4 mile
lubasha [3.4K]

Answer:

3.6.9.( 0.

Step-by-step explanation:

hindi ko sure sorry kong mali sayo

8 0
2 years ago
How do I solve this?
Korolek [52]
<span><span>   (<span>x−8</span>)</span>2</span><span>=<span><span>(<span>x+<span>−8</span></span>)</span><span>(<span>x+<span>−8</span></span>)</span></span></span><span>=<span><span><span><span><span>(x)</span><span>(x)</span></span>+<span><span>(x)</span><span>(<span>−8</span>)</span></span></span>+<span><span>(<span>−8</span>)</span><span>(x)</span></span></span>+<span><span>(<span>−8</span>)</span><span>(<span>−8</span>)</span></span></span></span><span>=<span><span><span><span>x2</span>−<span>8x</span></span>−<span>8x</span></span>+64</span></span><span>=<span><span><span>x2</span>−<span>16x</span></span>+<span>64

</span></span></span><span>(x−8)2=x2−82Step 1: Simplify both sides of the equation.x2−16x+64=x2−64Step 2: Subtract x^2 from both sides.x2−16x+64−x2=x2−64−x2−16x+64=−64Step 3: Subtract 64 from both sides.−16x+64−64=−64−64−16x=−128Step 4: Divide both sides by -16.−16x−16=−128−16x=8</span>
6 0
3 years ago
Suppose a normal distribution has a mean of 98 and a standard deviation of 6. What is P(x is greater than or equal to 86)? A. 0.
Lina20 [59]

Answer

0.975 is the probability value

Step-by-step explanation:

We start by getting the z score of 86

z-score = (x - mean)/SD

z-score = (86-98)/6 = -12/6 = -2

So we want to find the probability of z greater than or equal to 2

We shall be using the standard normal distribution table here

We have the answer as;

0.975

6 0
3 years ago
Other questions:
  • The weights (in pounds) of six dogs are listed below.
    14·2 answers
  • Find the quotient.<br>5)85<br>​
    11·1 answer
  • Find the number a such that the line x = a divides the region bounded by the curves y = x, y = 0, and x = 4 into two regions wit
    12·1 answer
  • A bicyclist travels 1 miles in 5 minutes .If m represents minutes , what does the expression m/5 represents
    15·1 answer
  • Jake bout 14.5 pounds of dried navy beans for 25.52 what is the price per pound of the beans
    12·2 answers
  • Pls help<br> 1.find the angles and the type of triangles
    8·1 answer
  • 5t-2r=25<br><br> solve for t.
    13·2 answers
  • $2,265 + 2(-$90) + (-$175) + (-$700)<br> W
    13·1 answer
  • 4. A one-year membership in a video rental club costs $10. Members pay $1.25 per video rental. You spend $45 in one year. How ma
    6·1 answer
  • Please hurry. Thank you in advance
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!