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alex41 [277]
3 years ago
11

9-x^2 factorize the expression​

Mathematics
1 answer:
seropon [69]3 years ago
3 0

Answer:

Step-by-step explanation:

(3-x)(3+x)

x^2-a^2 = (x-a)(x+a)

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X to the 2nd power plus x equal 5
mr Goodwill [35]
X^2 + x = 5
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4 0
3 years ago
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M is the midpoint of RS. R has coordinates (-2,-3) and M has coordinates (1,0). Find the coordinates of S.
Marta_Voda [28]

Answer:

(4,3)

Step-by-step explanation:

Given

R = (-2,-3)

M = (1,0)

Required

Determine the coordinates of S

Midpoint is calculated as:

M(x,y) = \frac{1}{2}(x_1 +x_2,y_1+y_2)

Where:

(x,y) = (1,0)

(x_1,y_1) = (-2,-3)

Substitute these values in the above formula:

(1,0) = \frac{1}{2}(-2 + x_2,-3+y_2)

Multiply through by 2

2 * (1,0) = 2 * \frac{1}{2}(-2 + x_2,-3+y_2)

(2,0) = (-2 + x_2,-3+y_2)

By direct comparison:

2 = -2 + x_2 and 0 = -3 + y_2

Solving for x2

2 = -2 + x_2

x_2 = 2 + 2

x_2 = 4

Solving for y2

0 = -3 + y_2

y_2 = 0 + 3

y_2 = 3

Hence, the coordinates of S is: (4,3)

5 0
3 years ago
Which pair of triangles can be proved congruent by SSS?
Temka [501]
The pair of triangles that can be <span>proved congruent by SSS theorem would be the triangles where the corresponding sides of each triangle being equal. From the images attached,

http://assets.openstudy.com/updates/attachments/50a1326be4b05517d536a6cf-geomentry-1352741498116-653....
http://assets.openstudy.com/updates/attachments/50a1326be4b05517d536a6cf-geomentry-1352741506883-653...

I think the correct answer would be the triangles in F.</span>
5 0
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Sliva [168]

Answer: 7 lol

Step-by-step explanation:

7 0
3 years ago
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Savatey [412]
The tax that Mark had to pay is calculated by multiplying the base price of the video game and the decimal equivalent of the tax percentage. That is,
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Thus, Mark had to pay approximately $4 for the tax. 
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