6. a mirror with a reflecting surface that caves inward is said to be
a. angular.
b. plane.
c. convex.
d. concave.

Concave. If its bending inward, it is concave.
Hope this helps~!
~{Oh Mrs.Believer}

The answer is D. concave.

Concave is a word that means sloping and/or curving inward. A good way for you to remember what concave means think of it as a cave. Caves go in not out right!

Have a good day! =)

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.

Multiply the 3 dimensions, assuming it is a rectangular cuboid, to get the volume in cm³ divide mass by volume to get density in g/cm³