A regular pentagon and an equilateral triangle have the same perimeter. The perimeter of the pentagon is 5 (1 x – 1) inches.
The perimeter of the triangle is 3 (x – 5) inches.
What is the perimeter of each figure?
a.9 inches
b.15 inches
c.20 inches
d. 45 inches

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

Acircle has a circumference of 7.850 units. what is its radius?

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?