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
Sedaia [141]
3 years ago
6

Simplify (8j3 – 5j2 – 5) – (6j3 – 12j2 + 8j – 7)

Mathematics
1 answer:
muminat3 years ago
8 0
(8j3 - 5j2 - 5) - (6j3 - 12j2 + 8j - 7) = 
(8j3 - 6j3) - (5j2 - 12j2) - 8j - (5-7) =
2j3 - (-7j2) - 8j - (-2) =
2j3 + 7j2 - 8j + 2

The correct answer is D. 2j3 + 7j2 - 8j + 2
You might be interested in
The difference of nineteen times a number and four
agasfer [191]

Answer:eight more than three times a number is negative nineteen:. 3x+8 = -19 3x = -27 x = -9. the difference four times a number and nine is three. 4x-9 = 3 4x = 12 x = 3. ten less than the product of two and a number is negative twelve. 2x-10 = -12 2x = -2 x = -1. Done.

Step-by-step explanation:

6 0
3 years ago
What is the sum of the last four terms of the series 7+9+11+...21
Sidana [21]

For sake of convenience, reverse the series, then it would be:

21,19,17.....7

a=21, d = -2,

s(4) = 4/2 (21+15)

s(4)=2(36)

s(4) = 72


8 0
4 years ago
Determine whether QRS is a right triangle for the given vertices. Explain.
LekaFEV [45]

Answer:

B

Step-by-step explanation:

6 0
4 years ago
An element with mass 670 grams decays by 27.3% per minute. How much of the element is remaining after 9 minutes, to the nearest
ArbitrLikvidat [17]
There will be 38 grams remaining.

The equation would be of the form
y = a(1+r)ˣ, where a is the initial value, r is the rate as a decimal number, and x is the amount of time.  Using our values from the problem, we have:

y = 670(1-0.273)^9 = 670(0.727)^9 = 38
6 0
3 years ago
Read 2 more answers
Describe the graph of a system of equations that has no solution.
Thepotemich [5.8K]

<span>The solution for a system of equations is the value or values that are true for all equations in the system. The graphs of equations within a system can tell you how many solutions exist for that system. Look at the images below. Each shows two lines that make up a system of equations.</span>

 

<span><span>One SolutionNo SolutionsInfinite Solutions</span><span /><span><span>If the graphs of the equations intersect, then there is one solution that is true for both equations. </span>If the graphs of the equations do not intersect (for example, if they are parallel), then there are no solutions that are true for both equations.If the graphs of the equations are the same, then there are an infinite number of solutions that are true for both equations.</span></span>

 

When the lines intersect, the point of intersection is the only point that the two graphs have in common. So the coordinates of that point are the solution for the two variables used in the equations. When the lines are parallel, there are no solutions, and sometimes the two equations will graph as the same line, in which case we have an infinite number of solutions.

 

Some special terms are sometimes used to describe these kinds of systems.

 

<span>The following terms refer to how many solutions the system has.</span>

5 0
3 years ago
Other questions:
  • A roof on a castle tower is shaped like a cone with a diameter of 12 feet and has a slant height of 13 feet one bundle of Shingl
    9·1 answer
  • Whats 300 over the power of two
    11·1 answer
  • Which graph represents the linear function below?
    10·1 answer
  • Q5.
    11·2 answers
  • Portia' s goal is to run a total of 10 miles every week. She ran 1.901 miles on Monday, 2.037 miles on Wednesday, and 3.159 mile
    9·1 answer
  • Point P is in the interior of ∠OZQ. If m∠OZQ = 125 and m∠OZP = 62, what is m∠PZQ?
    7·1 answer
  • My teacher said that 9+10 could equal 21 TELL me how
    7·2 answers
  • Cube root 17576 with steps
    12·1 answer
  • PLS HELP easy math PLEEEEEEEEEEEEEEEEEAASSSSSSSSSSSSEEEEEEEEEEEE
    5·1 answer
  • Use a fraction or mixed number to represent the time on a number line. Let 0 represent noon.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!