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Mice21 [21]
4 years ago
13

While completing a multiplication problem I need to know how to do it by associative

Mathematics
1 answer:
Vera_Pavlovna [14]4 years ago
3 0

Associative property Says that you can add or multiply regardless of how the numbers are group

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Help please it’s rational numbers
anastassius [24]

Answer:

3/1 ; 0/3 ; -191/32 ; 3/456

Step-by-step explanation:

We have to find all the numbers that are expressed with a fraction:

1) is a trap because the division is impossibile

2) true: 3/1 is a fraction

3) true: 0/3 is a possible division and it results 0

4) true: is a fraction

5) true: is a fraction

7 0
3 years ago
Five less than the quotient of a number and three is -7
Vanyuwa [196]

Answer:

The unknown number is -6

Step-by-step explanation:

Let's start by writing the sentence in mathematical terms:

Since we don't know what that "number" is, we replace it with the letter "x". Then, <em>the quotient of that unknown number and three</em> can now be written as: \frac{x}{3}

"<em>Five less than the quotient of a number by three</em>", can then be written as the difference (where we are subtracting 5 from that quotient): \frac{x}{3} -5

The last part of the sentence tells us that the expression we just wrote in mathematical form "<em>is -7</em>." This in mathematical terms indicates "equals -7."

Therefore, we now have a mathematical equation (there is an equal sign in the expression) and we try to solve for the unknown number "x" in it:

\frac{x}{3} -5=7\\

We do such by isolating the x on one side of the equal sign. This process involves: first add 5 on both sides of the equation, and second:multiply both sides of the equation by 3 to get rid of the denominator under the unknown:

\frac{x}{3} -5=-7\\\frac{x}{3} -5 +5 = -7 +5\\\frac{x}{3} =-2\\\frac{x}{3} * 3 = -2 *3\\x=-6

4 0
3 years ago
I need help asap :):):):
Airida [17]

Answer:

3x5-3x2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Solve for y.<br> 11<br> у<br> 2<br> - -8<br> y =
Elza [17]

Answer:

y=y(.11y+8)

Step-by-step explanation:

3 0
3 years ago
Write an equation for a circle if the endpoints of a diameter are at (–7, 1) and (5, 1).
yulyashka [42]
The diameter is 12 units long. Their equation could be seen in y = 1, because it is a horizontal line. From x = - 7 to x = 0 is 7 units. From x = 0 to x = 5, is 5 units. 5 + 7 = 12. This means the radius is 6. We will use this later. If you need another way to find the radius, let me know. I can just use distance formula. 

We will use these endpoints to find the center. 

Midpoint = ( \frac{X1+X2}{2} ,  \frac{Y1+Y2}{2} )
= ( \frac{- 7 + 5}{2} ,  \frac{1 + 1}{2} )
= ( \frac{-2}{2} ,  \frac{2}{2} )
= (- 1, 1)

This is the center. 

The equation of a circle is (x - h)² + (y - k)² = radius² where (h, k) is the center. 

Plug in our given information now.

(x + 1)² + (y - 1)² = 6²

(x + 1)² + (y - 1)² = 36 is your equation. 
3 0
4 years ago
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