<span>8x-4y = 20
Subtract 8x from both sides
-4y= -8x+20
Divide both sides by -4
Final Answer: y= 2x-5</span>
The IDs are of the form DDDDDLL, where D is a digit and L is a letter. There are 10 digits and 26 letters in English.
This gives you 10*10*10*10*10*26*26 possible combinations, or that many possible students who can use that system.
That’s 67,600,000 students.
Answer:
<h3>8^{5} or 32,768</h3>
Step-by-step explanation:
8 x 8 x 8 x 8 x 8
= 8² + 8²
=8²+²
=8^5
48
6 x 8 = 48.
(i'm supposed to write longer than 20 characters so here you go)
<h3>
Answer: A and B (first answer choice)</h3>
Explanation:
Both figures shown in A and B are triangular pyramids. The base is a triangle, and the lateral sides are also triangles. Another example would be rectangular pyramids where the base is a rectangle, and the lateral sides are triangles.
Choice C is ruled out because cones aren't considered pyramids.
Choice D is a combination of a rectangular prism, and a rectangular pyramid stacked on top, so it's not purely a pyramid only. We can rule out choice D.