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
My name is Ann [436]
3 years ago
15

Simplify the expression -2(3z-4y)-z

Mathematics
1 answer:
Alex17521 [72]3 years ago
4 0
Multiply -2 by 3z and -4y
-6z + 8y -z
subtract z from -6z
-7z + 8y should be your answer
You might be interested in
Please help me with the below question.
Snezhnost [94]

6a. By the convolution theorem,

L\{t^3\star e^{5t}\} = L\{t^3\} \times L\{e^{5t}\} = \dfrac6{s^4} \times \dfrac1{s-5} = \boxed{\dfrac5{s^4(s-5)}}

6b. Similarly,

L\{e^{3t}\star \cos(t)\} = L\{e^{3t}\} \times L\{\cos(t)\} = \dfrac1{s-3} \times \dfrac s{1+s^2} = \boxed{\dfrac s{(s-3)(s^2+1)}}

7. Take the Laplace transform of both sides, noting that the integral is the convolution of e^t and f(t).

\displaystyle f(t) = 3 - 4 \int_0^t e^\tau f(t - \tau) \, d\tau

\implies \displaystyle F(s) = \dfrac3s - 4 F(s) G(s)

where g(t) = e^t. Then G(s) = \frac1{s-1}, and

F(s) = \dfrac3s - \dfrac4{s-1} F(s) \implies F(s) = \dfrac{\frac3s}{\frac{s+3}{s-1}} = 3\dfrac{s-1}{s(s+3)}

We have the partial fraction decomposition,

\dfrac{s-1}{s(s+3)} = \dfrac13 \left(-\dfrac1s + \dfrac4{s+3}\right)

Then we can easily compute the inverse transform to solve for f(t) :

F(s) = -\dfrac1s + \dfrac4{s+3}

\implies \boxed{f(t) = -1 + 4e^{-3t}}

6 0
1 year ago
Refer to the above graph to answer questions 1 through 5. 1. Lines A and B form what type of system?
xeze [42]

Answer:

Lines A and B form a consistent independent system

Step-by-step explanation:

we know that

A consistent system of equations has at least one solution

In this problem

The system of Line A and Line B has only one solution, since it has only one point of intersection.

and the Line A is different to Line B

therefore

Lines A and B form a consistent independent system

(independent because Lines A and B are different)

4 0
3 years ago
What is the solution of the system of linear equations below?
lesya692 [45]

Answer:

the answer is no solution.

7 0
3 years ago
Manson bought 8 1/4 feet of wire. He cut off a piece of wire 3 5/12 feet long and used it for his science project. How much wire
nadezda [96]

Answer:

He has 4 10/12 wire left

Step-by-step explanation:

7 0
3 years ago
Please im begging you guys please please do it for me please
Tasya [4]

When Jamie has $200 to purchase skateboard equipment, he will have spent more than 50 percent.

<h3>How to calculate the percentage?</h3>

From the information given, the total amount spent will be:

= $100 + $60 + $30 + $20 + $20 + $50 + $115

= $395

Since Jamie has $200 to purchase skateboard equipment, the percentage will be:

= 200/395

= 0.51

= 51%

Learn more about percentages on:

brainly.com/question/24304697

#SPJ1

6 0
2 years ago
Other questions:
  • What’s the correct answer for this?
    15·1 answer
  • Can someone help me with this
    14·2 answers
  • Vertex form of x^2+6x+3
    5·1 answer
  • What is the mode of this data set? {41, 43, 45, 3, 11, 23, 24, 27, 29, 45, 12, 19, 22, 49, 25}
    13·1 answer
  • What is the volume of a prism where the base is a 45-45-90 triangle with a leg of 5 in. when the height is 1.8 in.?
    10·2 answers
  • Given the equation Y -4 equals three force X +8 in point slope form, identify the equation of the same line in standard form
    8·1 answer
  • Two dice are rolled; find the probability for total: a) 1, b) 4 or 6; c) &lt;13
    7·1 answer
  • Taliyah has 174 coins in her collection of dimes and nickels. The total value of the collection is $15.20. How many dimes does s
    11·1 answer
  • HELPPPPP ME PLEASE!!!!
    12·2 answers
  • Please help :( Algebra 2 Question
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!