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ella [17]
3 years ago
15

25 -(-x)= Commutative property if addition

Mathematics
1 answer:
slava [35]3 years ago
6 0
Answer: 25+x

Explanation: first you must distribute the negative to what is in the parentheses, which in this case is -x. a negative multiplied by a negative is a positive, so you now have 25 + x.
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Which expression Is equivalent to x^2+10x+24
garik1379 [7]

Answer:

(x+4)(x+6)

Step-by-step explanation:

First we factorise:

x²+4x+6x+24

x(x+4)+6(x+4)

(x+4)(x+6)

So the last one is equivalent

4 0
3 years ago
Read 2 more answers
At the craft store, Martina bought a bag of yellow and orange marbles. She received 15 marbles in all. 6 of the marbles were yel
vampirchik [111]

Answer:

40%

Step-by-step explanation:

6/15=2/5=4/10=40%

8 0
3 years ago
Which equation represents a line that passes through (4, ⅓) and has a slope of ¾?<br>​
Serjik [45]

Answer:

32/3

Step-by-step explanation:

First you need to understand the slope-intercept form

y = mx +b

m = the slope of the line

b = the y-axis intercept

y and x represent the coordinates of a point on the line

So for the equation that you listed we know that the slope, m , is (3/4).  We also know a given point on the line.  therefore we also have a y value (1/3) and a x value (4).

So plug in the numbers:

(1/3)=(3/4)*4 + b

So to find the equation of this line we must solve for b

Multiply (3/4) and 4 to get 3

(1/3) = 3 + b

Now subtract 3 from both sides in order to isolate b

-2 2/3 = b or -8/3 = b

Now rewrite the equation with the y-intercept, b.

y = (3/4)x - (8/3)

From the wording I am assuming you are given a list of equations to chose from.  It is possible that the some of all of the equations are listed in standard form.  In that case, we need to find the equation:

Ax + By = C

To do that we simply take the slope intercept equation and manipulate it algebraically  

y = (3/4)x - (8/3)  First subtract (3/4)x from both sides

-(3/4)x + y = -(8/3)  This is technically standard form but we can clean it up a bit by multiplying both sides of the                                          equation by -4.

So -4 * -(3/4)x = 3x

    -4 *y = -4y

   -4 *-(8/3) = 32/3

So 3x - 4y = 32/3

I hope this helps

5 0
3 years ago
Study the following data set.
nikdorinn [45]

Answer:

22

Step-by-step explanation:

Arrange the data points from smallest to largest.

If the number of data points is odd, the median is the middle data point in the list.

If the number of data points is even, the median is the average of the two middle data points in the list.

6 0
3 years ago
Pleas choose correct answer
ElenaW [278]

Answer:

b

Step-by-step explanation:

4 0
3 years ago
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