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
Dmitriy789 [7]
3 years ago
8

Find the value -2/3÷ 4/6. A -1 B 4/9 C -9/4 D 1

Mathematics
2 answers:
abruzzese [7]3 years ago
5 0
The answer is A. -1

Hope this helps^_^
Allushta [10]3 years ago
4 0



Answer should be -1
You might be interested in
Eight times a number plus five another number is -13. The sum of the two numbers is 1. What are the numbers?
Pani-rosa [81]
Eight *(a number) plus 5*(another number) is -13.

translates to:

8(x) + 5(y) = -13

The sum of (the number) and (the other number) is 1.

translates to:

(x) + (y) = 1


We have a system of two equations involving two unknowns: x and y.

\rm 8x+5y=-13\\
~~x+~~y=~~~~1

We can easily solve the system using Substitution or Elimination. Let's use Elimination this time.

We'll multiply the second equation by -8 so that the x's match up.

\rm ~~~8x+5y=-13\\ -8x-8y=-8

When we add the equations together, the x's will fall out of the equation, summing to zero. The 5y and -8y will sum to -3y and the right hand side will sum to -21.

\rm -3y=-21

Divide by -3,

\rm y=7

Plug back into one of your original equations to find the value of x,

\rm x+y=1\\
x+7=1

Subtract 7,

\rm x=-6
8 0
3 years ago
If
Leno4ka [110]

Answer:

\frac{s^2-25}{(s^2+25)^2}

Step-by-step explanation:

Let's use the definition of the Laplace transform and the identity given:\mathcal{L}[t \cos 5t]=(-1)F'(s) with F(s)=\mathcal{L}[\cos 5t].

Now, F(s)=\int_0 ^{+ \infty}e^{-st}\cos(5t) dt. Using integration by parts with u=e^(-st) and dv=cos(5t), we obtain that F(s)=\frac{1}{5}\sin(5t)e^{-st} |_{0}^{+\infty}+\frac{s}{5}\int_0 ^{+ \infty}e^{-st}\sin(5t) dt=\int_0 ^{+ \infty}e^{-st}\sin(5t) dt.

Using integration by parts again with u=e^(-st) and dv=sin(5t), we obtain that

F(s)=\frac{s}{5}(\frac{-1}{5}\cos(5t)e^{-st} |_{0}^{+\infty}-\frac{s}{5}\int_0 ^{+ \infty}e^{-st}\sin(5t) dt)=\frac{s}{5}(\frac{1}{5}-\frac{s}{5}\int_0^{+ \infty}e^{-st}\sin(5t) dt)=\frac{s}{5}-\frac{s^2}{25}F(s).

Solving for F(s) on the last equation, F(s)=\frac{s}{s^2+25}, then the Laplace transform we were searching is -F'(s)=\frac{s^2-25}{(s^2+25)^2}

3 0
3 years ago
Can a right rectangular prisms with different volumes have the same volume
Alona [7]
It depends if you mean like a prism with say 15w 10l and 9h in a horizontal and a prism with a same volume but in a different position. and have a nice day  
7 0
3 years ago
Find the value of 8!<br> O A. 56<br> O B. 16,777,216<br> O c. 40,320<br> O D. 64
Ksivusya [100]

8! is 40,320

Step-by-step explanation:

  • Step 1: Find 8! (8 factorial).

Factorial of 8 is the product of 8 and all the integers below 8.

⇒ 8! = 8×7×6×5×4×3×2×1

        = 40,320

8 0
3 years ago
9 millions equal how many tens?
sammy [17]
It equals 900,000 10's
8 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose a college surveyed its students and found that two-thirds of them sleep at least seven hours each night. on a campus of
    10·1 answer
  • Compute the amount of interest earned in the following simple interest problem. A deposit of $1,600 at 6% for 180 days =
    6·2 answers
  • What is the simplified expression for the expression below? 4(3x – 2) + 6x(2 – 1) 24x – 3 18x – 8 18x – 7 24x – 14
    6·2 answers
  • Delia can buy 3 identical sweatshirts for a total of $30. How much would it cost if she were to buy 4 of the same sweatshirts at
    12·1 answer
  • Solve for the dimensions of the area model below and then write an equation showing how the area as a sum is equivalent to the a
    13·1 answer
  • Solve the system by substitution 8y+3=x 9x-5y=-40
    15·1 answer
  • : Đẳng thức nào sau đây đúng ?<br> A. cos4x – sin4x = 2-cos2x B. cos4x – sin4x = 1+2sin2x
    12·1 answer
  • if a dog is tied to a pole and the rope is 12 feet long, what is the area that the dog can walk around?
    8·1 answer
  • Factor the trinomial.<br><br> 6x² + 5x − 6
    7·1 answer
  • Luis, Marissa, and Federico are raising money for a school trip. Luis
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!