x is less than or equal to 12
(Distribute the 3 )
3x+3<39
(Move the 3 to the other side by subtracting)
3x<36
(Divide 3 on both sides)
x<12
*Note that I don't know how to do the less than or equal sign on my computer so please excuse that)
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Explanation:</h2>
A cube is a prism whose sides all have the same length. You can think of a cube like the three dimensional version of a square. In this problem, we know that Mary is using a microscope in order to look at a salt crystal and discovers it is shaped like a cube. Each square face has side length:
This diagram is shown in the first figure below. A crystal's square face is one of the six faces of the cube. So in order to draw it we need to know how many units we'll have in each side. Since we know that 1 unit on the grid represents 0.01mm, then:
So we will have 10 units that measure 0.01mm in each side. This is shown in the second figure below.
The best and most correct answer among the choices provided by your question is the second choice or letter B.
The area of the circle is multiplied by 9, when its radius is tripled.
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
No need for Brainliest on these easy ones. The perimeter is the sum of all four sides, so
P = 6 + 4 + 6 + 4
Answer: P = 6 + 4 + 6 + 4, first choice