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Burka [1]
3 years ago
8

Find the solution(s) for x in the equation below. x2-25=0

Mathematics
1 answer:
AleksandrR [38]3 years ago
5 0

Answer:

x=12.5

Step-by-step explanation:

2x-25=0

Move 25 to the right with addition so you get the 2x by itself:

2x=25

Now divide the 2 to the right to get the x by itself:

x=25/2, which is the same as x=12.5

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aliina [53]
sin(\frac{7\pi}{2}) = -1\\y = sin(\frac{7\pi}{2})\\y = -1

I have attached the graph

7 0
3 years ago
An equation is shown below: 6(2x - 11) 15 = 21 Write the steps you will use to solve the equation and explain each step.
kolbaska11 [484]

Answer:

x=6

Step-by-step explanation:

6(2x -11) 15 =21

6 × 2x = 12x

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12x -66 + 15 = 21

-66 + 15 = -51

12x -51 = 21

-51 + 51 = 0

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3 0
2 years ago
What is the value of x in x/7 = 35
Dominik [7]

Try multiplying each side of the equation by  7 .
Then you must quickly step to one side, as the
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8 0
3 years ago
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Find the coordinates of the midpoint of a segment with the given endpoints W(-12, -7), T(-8, -4)
jasenka [17]

Finding the midpoint coordinates of any segment really boils down to finding the midpoints of each individual coordinate.

The x-coordinates of the two points are -12 and -8 - the number halfway between those two is -10, so that'll be the midpoint's x-coordinate. The y-coordinates are -7 and -4 - -5.5 is halfway between these two, so the y-coordinate will be 5.5.

Putting the two together, the midpoint of the segment WT has the coordinates (-10, -5.5).

4 0
3 years ago
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There are 12 marbles in a box. 8 are purple, and 4 are green. What is the probability of picking a purple marble and then a gree
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Answer: 8/33

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So the probability of doing both is 8/12 x 4/11 = 8/33

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