Which of the following operations can be performed to rationalize \dfrac{\sqrt{7}}{2\sqrt{11}}? 2
11


7



?start fraction, square root of, 7, end square root, divided by, 2, square root of, 11, end square root, end fraction, question mark
Choose 1
Choose 1

(Choice A)
A
Multiply numerator and denominator by \sqrt{11}
11

square root of, 11, end square root.

(Choice B)
B
Multiply numerator and denominator by \sqrt{7}
7

square root of, 7, end square root.

16

step-by-step explanation:

2 x 40 = 80

80/5

= 16

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

answer: b

step-by-step explanation: im sorry bro bro but thats not a eqation the human mind can answer and plus im a devil