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ad-work [718]
3 years ago
7

Which of the following is the conjugate of the expression below when x> -3?

Mathematics
1 answer:
harina [27]3 years ago
5 0

Answer:

7+\sqrt{x+3}

Step-by-step explanation:

The conjugate of a radical expression is obtained by changing the sign of the middle term.

The conjugate of a+\sqrt{b} is simply a-\sqrt{b}

Therefore, to obtain the conjugate of the given expression we simply shall be  changing the negative sign to positive;

The conjugate of 7-\sqrt{x+3} is simply;

7+\sqrt{x+3}

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The two labeled angles are alternate interior angles, and as such, they are the same.

From this result you can build the equation

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Check: if we plug the value we found we have

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IgorLugansk [536]

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2. 13.5 x 17 = 229.5

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what is the volume of a box with the height of 3/2 inches and a length of 7/2 inches and a width of 5/2 inches
nadezda [96]

Answer:

13.125 in³

Step-by-step explanation:

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Now for the actual math. Take 1.5×3.5=5.25. Then take your new number and multiply it by 2.5. 5.25×2.5=13.125.

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