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
omeli [17]
4 years ago
15

So a negative number minus a negative number equals a positive so is a negative number times a negative number a positive or a n

egative. Will give crown to best answer.
Mathematics
2 answers:
Arada [10]4 years ago
5 0
A negative times a negative is a positive.
because 2 negatives equals positive.
I HOPE THIS HELPS!!. HAVE FUN!!
schepotkina [342]4 years ago
5 0
<span>think of numbers as points along a line from - to + infinity, with 0 in the middle.

when we multiply, what we're going to do is find a new place along that line.
we use the first number to pick a place, and the second number to change that place -- to head to a new location.

when we add or subtract, we do the same. pick a place, and then move along the line, in the direction and distance specified by the 2nd number.

pick 3, multiply by 2, and you're twice as far along the line.
when you multiply by -2, you change direction, but have the same magnitude.
so you look on the other side of 0, and then go twice as far away from 0, just as you did before.

next, when you're at -4 and multiply by 2, you continue along the line in the same direction, to -8

last, when you're at -3, and multiply by -2, the -2 makes you change direction, so now you're on the + side of the line, and the 2 makes you go twice as far, to 6.

have a nice day.


A NEGATIVE TIMES A NEGATIVE IS A POSITIVE


hope I helped


Brainliest if satisfied :D

it would mean a lot
</span>
You might be interested in
A satellite camera takes a rectangular-shaped picture. The smallest region that can be photographed is a 4-km by 4-km rectangle.
Lesechka [4]
So we know that the formula for the area of a rectangle is A = lw.
Now both the length and width of the rectangle increase at 3 km/s, therefore, A(t) = (3t+l)*(3t+w). Since the initial length = initial width = 4 km, then the initial area = 16 [tex]km^2. We want to know the time when the area is four times its original area, therefore, our new formula is: 4A(t) = (3t+l)*(3t+w). Plugging in our known values we have:

64 [km^2] = (3t + 4 [km])*(3t + 4 [km])
t =  \frac{4}{3} s

The area is four times its original area after <span>\frac{4}{3} s[/tex]</span>.
6 0
4 years ago
140+500x
Hoochie [10]
140+500(10)
Multiply 500 times 10 which leaves you with 5000. Add 140 and the answer is 5140
3 0
3 years ago
The power generated by an electrical circuit (in watts) as a function of its current ccc (in amperes) is modeled by: P(c)=-12c^2
g100num [7]

Answer:

5 amperes will produce the maximum power of 300 watts.

Step-by-step explanation:

The general form of a quadratic function presents the function in the form

f(x)=ax^2+bx+c

The vertex of a quadratic function is the highest or lowest point, also known as the maximum or minimum of a quadratic function.

We can define the vertex by doing the following:

  • Identify a, b, and c
  • Find, the x-coordinate of the vertex, by substituting a and b into

x-coordinate =-\frac{b}{2a}

  • Find, the y-coordinate of the vertex, by evaluating

y-coordinate =f(x-coordinate )=f(-\frac{b}{2a} )

We know that the power generated by an electrical circuit is modeled by

P(c)=-12c^{2}+120c

This function is a quadratic function.

To find the current that produce the maximum power you must

  • Identify a and b

a = -12 and b = 120

  • Find, the maximum current of the vertex, by substituting a and b into

maximum-current =-\frac{b}{2a}

maximum-current =-\frac{120}{2(-12)}\\\\maximum-current = 5

  • Find, the maximum-power, by evaluating

maximum-power =P(maximum-current)=P(-\frac{b}{2a} )

P(5)=-12(5)^{2}+120(5)=300

5 amperes will produce the maximum power of 300 watts.

We can check our work with the graph of the function P(c)=-12c^{2}+120c and see that the maximum is (5, 300).

5 0
4 years ago
Thi sis the question
jek_recluse [69]

\text{Given that,}\\\\x^2 + \dfrac1{x^2} = 38\\\\\\(i)\\\\\left(x-\dfrac 1x \right)^2 = x^2 + \dfrac 1{x^2} - 2 \cdot x \cdot \dfrac 1x\\\\\\\implies \left(x-\dfrac 1x \right)^2 = 38 -2 = 36\\\\\implies x - \dfrac 1x = \pm\sqrt{36} = \pm 6 \\\\\\(ii)\\\\x^2 + \dfrac 1{x^2} = 38\\\\\\\implies \left(x^2 + \dfrac 1{x^2} \right)^2 = 38^2\\\\\\\implies x^4 + \dfrac 1{x^4} + 2\cdot x^2 \cdot \dfrac 1{x^2} = 1444\\\\\\\implies x^4 + \dfrac 1{x^4} + 2 = 1444\\\\\\

\implies x^4 +\dfrac 1{x^4} = 1444-2 = 1442

7 0
2 years ago
What is the answer????
kodGreya [7K]

Let's see

  • (10y)²=(6y)²+64²
  • 100y²-36y²=(64)²
  • 64y²=64²
  • y²=64
  • y=√64
  • y=8
3 0
2 years ago
Read 2 more answers
Other questions:
  • How do you find the absolute value of a positive number ?
    14·2 answers
  • Alisa says it is easier to compare the numbers in set a (45,000, 1,025,680) instead of set b (492,111, 409,867). 1.What is one w
    13·2 answers
  • During their last workout, Izzy ran 2 1/4 miles in 15 minutes, and her friend Julia ran 3 3/4 miles in 25 minutes. Based on thei
    6·1 answer
  • What is the value of the expression below when y=8y and z=8z? 10y-3z
    13·1 answer
  • 30% of the library books in the fiction are worn and need replacement.10% of the nonfiction holdings are worn.The library's hold
    12·1 answer
  • The circle graph shows the parts of his play time that Austin spends playing with his different toys.
    10·2 answers
  • Kian is twice as old
    10·1 answer
  • One of the solutions of the system of equations shown in the group has an x-value of -4. What is its corresponding integer y-val
    10·1 answer
  • HELP--)__----__---__--
    13·2 answers
  • You are given the expression 30x4y3 − 12x3y.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!