If it helps I’m working on surds, when the square root of a number isn’t a whole number

Answer

A. 2√3

B. 3√3

C. 5√2

Explanation

A. √12 = √4×3 so we know that 4×3 gives us 12

= √4 ×√3since it is a multipling we can separate the square

= 2√3 we put 4 out of the square but not 3 because it is not

a perfect square

B. √27 = √9×3

= √9 × √3

= 3√3simplified form

C. √50 = √25×2

= √25 × √2

= 5√2 simplified form

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: