The height of a model rocket is given (in centimeters) by the formula h = ­490t2 , where t is measured in seconds and h = 0 refers to its original height at the top of a mountain. It begins to fly down from the mountaintop at time t = 0. When has the rocket descended 490 centimeters?

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'.

a. is correct

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105

sorry

step-by-step explanation:

sorry, but im pretty sure its a now that i look at it