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gogolik [260]
3 years ago
13

Use properties of operations to determine whether or not the expressions (x + 10) + x + 9 and 2(x + 7) + 5 are

Mathematics
1 answer:
Anna35 [415]3 years ago
7 0

Answer:

The expressions are equivalent.

Step-by-step explanation:

We can simplify each expression and compare the results.

(x + 10) + x + 9 = x + 10 + x + 9 = 2x + 19

2(x + 7) + 5 = 2x + 14 + 5 = 2x + 19

2x + 19 = 2x + 19

Answer: The expressions are equivalent.

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Answer this question please and thank you
Murljashka [212]

Answer:

1

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Step-by-step explanation:

here´s and example for 1

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8 0
3 years ago
Which is the correct calculation of the y-coordinate of point A? 0 (0 - 0)2 + (1 - y2 = 2 O (0 - 1)² + (0- y2 = 22 (0-0)² + (1 -
dimaraw [331]

Answer:

The y-coordinate of point A is \sqrt{3}.  

Step-by-step explanation:

The equation of the circle is represented by the following expression:

(x-h)^{2}+(y-k)^{2} = r^{2} (1)

Where:

x - Independent variable.

y - Dependent variable.

h, k - Coordinates of the center of the circle.

r - Radius of the circle.

If we know that h = 0, k = 0 and r = 2, then the equation of the circle is:

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y = \sqrt{3}

The y-coordinate of point A is \sqrt{3}.  

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