Jane is working on her tennis backhand in a gymnasium. If she hits the ball and it travels 172 ft. in 4 sec., what is its rate of speed? A. 17.2 ft. per sec.
B. 43 ft. per sec.
C. 59 ft. per sec.
D. 172 ft. per sec.

I should be B because all you got to do is just multiply 43 x 4 ( Hope its right! )

Step-by-step explanation:

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'.

phosphate, calcium ion, chloride ion, neon atom

step-by-step explanation: