Find all the real square roots of -9/16

THE LAST OPTION (NO REAL ROOT).

Step-by-step explanation:

1. As you can see, the fraction given in the problem above have a negative sign:

-9/16

2. By definition, if a number is negative then it does not have real root.

3. Keeping this on mind, you can conclude that the number square root of -9/16 does not have real root.

Therefore, the answer is the last option.

No real roots; Alternative D

Step-by-step explanation:

The square root of a negative number is always imaginary and is usually expresses in terms of the imaginary number i.

Where;

Therefore, a negative number has no real roots

something that characterises a right triangle is the fact that we may use pythagoras' theorem to find any one of its sides given that we have the length of the other two sides. here, we have the length of the hypotenuse, √(87) yd, and one other side, √(23) yd, thus we can easily find the length of the remaining side using pythagoras' theorem as defined below:

c^2 = a^2 + b^2, where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.

thus, given that c = √(87) and a = √(23), we may substitute these into the formula we defined above to get:

c^2 = a^2 + b^2

(√87)^2 = (√23)^2 + b^2 (substitute c = √87 and a = √23 into the equation)

87 = 23 + b^2 (evaluate (√87)^2 = 87 and (√23)^2 = 23 - remember that the square root of a number, squared will equal that very same number)

64 = b^2 (subtract 23 from both sides)

√64 = b (take the square root of both sides)

8 = b (evaluate √64 = 8)

therefor, the length of the unknown leg in the right triangle is 8 yd (first answer).

how am i supposed to answer

step-by-step explanation: