Triangle ABC is congruent to triangle DEF.

Which statement must be true about the triangles?

m∠A=m∠E

AB = DE

AB = EF

m∠B=m∠D

Radio signals travel at a rate of 3 * 108 meters per second. How many seconds will it take for a radio signal to travel from a satellite to the surface of the Earth if the satellite is orbiting at a height of 7.5 * 106 meters?

What fraction of 1.050 is 68%

12r - 6s = t for r solve the equation for the indicated variable

Not an 8, or a heart

What is 10,504,006 in word form and in exapnded form

Compare the quantity in Column A with the quantity in Column B. line PA is tangent to the circle at A

Find the value or values of y in the quadratic equation y2 + 4y + 4 = 7. A. y = - 2 + √ 7, y = - 2 - √ 7 B. y = 2, y = 7 C. y = - 2√ 7, y = 2√ 7 D. y = 2 + 2√ 7, y = 2 - 2√ 7

What is the solution of the equation 4x + 17 = 45? -7 -6 6 7

What is the area of the circle? d = 8 m 6471 m2 50.24 m2 100.48 m2

The y intercept of the line 5y + 2x - 3=0