60*80-10*16 if it's regular area and not surface area
The answer is 15
these chords are congruent because the radius of the circle are perpendicular to the them
so we can find EF by making an equation:

so EF is = 3(15)+5=50
good luck
Answer:

And replacing we got:

And we can calculate this probabilit using the normal standard distribution or excel and we got:

Step-by-step explanation:
If we define the random variable of interest "the amount spent by a family of four of food per month" and we know the following parameter:

And we want to find the following probability:

And we can use the z score formula given by:

And replacing we got:

And we can calculate this probabilit using the normal standard distribution or excel and we got:

The solution of the inequality is t<-3. Because -15 divided by 5t is equal to -3
The function that describes the line that has a y-intercept of -3 and a slope of 2/3 is y = 2/3x - 3. Hope that helps!