The hypotenuse of a 30 - 60 - 90 triangle measures 2 feet. How long is the short leg of
this triangle?

The short leg is the square root 2.

Step-by-step explanation:

So we know that the triangle is a right triangle and the  hypotenuse is 2.

so we could use the formula a^2 + b^2 = 2^2

A and B could be the same.

A and B could be the square root of 2 so lets try it out.

√2^2 +√2^2=4

2 + 2= 4

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons