Liz wants to buy a shirt for $25 how much will liz s shirt cost in Springfield rounded up to the nearest cent

Mathematics

1 answer:

liq [111]3 years ago

7 0

$25 dollars because the shirt costs $25 and that already rounds to the nearest cent.

You might be interested in

I don't get V=(4/3)pie r spuared

NeTakaya

That is the formula to find the volume of a sphere. It's best to just memorize it as it is hard to come up with. The (4/3) is a constant (it is always that fraction). Pi is also a constant but it is a never ending decimal number so they use the Greek number pi to represent it. Most schools use 3.14 to equal pi but some just use 3 so be sure to check with your teacher. The r here is referring to the radius of the sphere which is the measurement from the center out to the edge. To find the volume you need to multiply (4/3) times Pi times (the radius squared)

7 0

3 years ago

A diameter of a circle has endpoints P(-10,-2) and Q(4,6).

Olenka [21]

The equation for the midpoint is given by:
$P = (\frac{x1 + x2}{2} , \frac{y1 + y2}{2})$
Substituting values we have:
$P = (\frac{-10 + 4}{2} , \frac{-2 + 6}{2})$
$P = (\frac{-6}{2} , \frac{4}{2})$
$P = (-3 , 2)$
We can find the radius of the circle using the equation of distance between points:
$d = \sqrt{(x2-x1)^2 + (y2-y1)^2}$
Substituting values:
$d = \sqrt{(4-(-3))^2 + (6-2)^2}$
$d = \sqrt{(4+3)^2 + (4)^2}$
$d = \sqrt{(7)^2 + (4)^2}$
$d = \sqrt{49 + 16}$
$d = \sqrt{65}$
The equation of the circle is its standard form is:
$(x-xo) ^ 2 + (y-yo) ^ 2 = r ^ 2
$
Where,
(xo, yo): coordinates of the center of the circle
r: radius of the circle
Substituting values:
$(x + 3) ^ 2 + (y-2) ^ 2 = 65
$