Z varies directly as x and inversely as y. If z = 9 when x = 24 and y = 8, find y when
x = 10 and z= 5.

y = 6.

Step-by-step explanation:

z = kx/y

9 = k*24/8

24k = 72

k = 3.

So z = 3x/y

When x = 10 and z = 5

5 = 3*10/y

5y = 30

y = 6.

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.