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
Fittoniya [83]
3 years ago
7

Evaluate 12x−3y12x−3y when x=−14x=−14 and y=3y=3.

Mathematics
1 answer:
Harrizon [31]3 years ago
6 0
Well the first problem that i solve is you have to move 12 it will give you 
-3y power 12 - 3y + 12
You might be interested in
HELP!!!! I think its C but I'm not sure!
MA_775_DIABLO [31]

Answer:

The fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. The roots are x=1\pm i\sqrt{7}.

Step-by-step explanation:

Consider the provided information.

Algebra's fundamental theorem states that: Every polynomial equation of degree n with complex coefficients has n roots in the complex numbers.

Now consider the provided equation.

2x^2-4x+16=0

The degree of the polynomial equation is 2, therefore according to Algebra's fundamental theorem the equation have two complex roots.

Now find the root of the equation.

For the quadratic equation of the form ax^2+bx+c=0 the solutions are: x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

Substitute a=2,\:b=-4,\:\ and \ c=16 in above formula.

x_{1,\:2}=\frac{-\left(-4\right)\pm \sqrt{\left(-4\right)^2-4\cdot \:2\cdot \:16}}{2\cdot \:2}

x_{1,\:2}=\frac{4\pm \sqrt{16-128}}{4}

x_{1,\:2}=\frac{4\pm \sqrt{-112}}{4}

x_{1,\:2}=\frac{4\pm 4i\sqrt{7}}{4}

x_{1,\:2}=1\pm i\sqrt{7}

Hence, the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. The roots are x=1\pm i\sqrt{7}.

4 0
3 years ago
What is 11 divided by 1/4
Aneli [31]

Answer:2.75

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Name the ordered pair for the point. A​
miv72 [106K]

Answer:

point A is (-1.5, 1.5)

Step-by-step explanation:

Hope This Helps!

4 0
3 years ago
I dunno if u can see the questions but I need help in questions 3 and 4. Can I have a step by step with that as well please? Tha
Kruka [31]

Answer:

#3: 84 books

#4: 90 pounds

Step-by-step explanation:

#3: 14*6= 84

#4: 30*3= 90

Hope this helps!!

3 0
3 years ago
Read 2 more answers
Find the inverse Laplace transform f(t) of the function F(s). Write uc for the Heaviside function that turns on at c, not uc(t).
zzz [600]

Answer:

F(t)=\frac{-1}{2}e^{7(t-7)}+\frac{1}{2}e^{-7(t-7)}

Step-by-step explanation:

We have given F(S)=\frac{7e^{-7s}}{s^2-49}

Now  F(S)=e^{-7s}G(s)

Here G(S)=\frac{7}{S^2-49}

Now first find the Laplace inverse of G(S)

Using partial fraction

\frac{7}{(s+7)(s-7)}=\frac{A}{(S+7)}+\frac{B}{S-7}

7=A(S-7)+B(S+7)

On comparing the coefficient

A=\frac{1}{2}  and B=\frac{-1}{2}  

On putting the value of A and B  

G(S)=\frac{-1}{2(S+7)}+\frac{1}{2(S+7)}

Taking inverse Laplace

G(t)=\frac{-1}{2}e^{7t}+\frac{1}{2}e^{-7t}

Now in G(s) there is onether term e^{-7s}

So F(t)=\frac{-1}{2}e^{7(t-7)}+\frac{1}{2}e^{-7(t-7)}

6 0
3 years ago
Other questions:
  • a taxi cab charges a flat fee of $2.00, plus $0.25 for every mile driven. If the fare comes to $7.75, what equation could be use
    7·1 answer
  • ASAPPP SOMEONE PLEASEEE
    10·1 answer
  • The electricity that powers our appliances is converted from many sources of energy. About 5/10 is made from coal, about 2/10 fr
    12·1 answer
  • I really don’t know where to start on this thing
    10·1 answer
  • Part A: Factor 3x2y2 − 2xy2 − 8y2. Show your work. (4 points) Part B: Factor x2 + 10x + 25. Show your work. (3 points) Part C: F
    7·1 answer
  • Solve the following equation algebraically:
    5·2 answers
  • The endpoints of a line segment AR are A(8,-2) and R(-4,1). What is the length of the AR?
    8·1 answer
  • In your own words, how would you define slope?
    14·2 answers
  • Which number represents 4%<br><br>400<br>40<br>0.4<br>0.04​
    8·1 answer
  • 2. An employee worked 42% of a calendar year, how many days were worked in a year?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!