Simplify this expression
5*sqrt(x^22) where x< 0

Step-by-step explanation:

Remember that we evaluate the term under the radical first.

Even though x < 0, x²² > 0

So,

The simplified expression is

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4