MATHEMATICS HIGH SCHOOL

Peter uses unit cubes to build a figure in the shape of the letter x. What is the fewest unit cub es that peter can use to build the figure?

Answers

Answer 1
Answer: X letter is formed by two lines. The minimum amount of cubes that one side may have to look a line that cross other line is 3, but given that one cube is shared by the two lines you only need 5 cubes. So the answer is that the fewest unit cubes that Peter can use to build the figue in the shpe of X is 5 cubes.

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A formal proof uses all of the following components except what?A.) theorems
B.) a set of examples
C.) geometry rules
D.) algebra rules

Answers

I think it is c or d but i would go with c for sure

Answer:

D.) algebra rules

Step-by-step explanation:

Had it on the quiz

Simplify 6(x + y) + (x - y). 6x 7x 7x + 6y 7x + 5y

Answers

-6x^15y+6x^16+6xy^7+11y+6x ? I'm not sure if that is 100% right.

The area of a circle is 9pi square meters. What is the circumference?

Answers

The answer is r=3, If you have any questions to how I got this answer please ask away c:

一1423-16 田5 +5>X-161718sm co,

Answers

  -14 ≥ ¹/₃x - 16
+ 16         + 16
     2 ≥ ¹/₃x
 3(2) ≥ 3(¹/₃x)
      6 ≥ x
      x ≤ 6
Solution Set: (-∞, 6]

    5 < ¹/₈m + 5
  - 5            - 5
    0 < ¹/₈m
8(0) < 8(¹/₈m)
    0 < m
    m > 0
Solution Set: (0, ∞)

the average amount of annual interest earned across three investment accounts was $2709.00. If one account yielded $1345.00 in the 12 month period, and the second yielded $568.00, what did the thrid account yield?

Answers

The interest of the third investment to have an annual interest earning of 2,709 would be 6,214. This is calculated using the formula: average = (a+b+c ) / 3. By substituting it would be, 2,709 = (1,345 + 568 +x) / 3. Then it would be 8,127 = 1,345 + 568 +x and by transferring the figures, it will be then 6,214.

55 is 40% of what number

Answers

It is important to do thecalculations very carefully. Otherwise there is nothing complicated about thisproblem.
Let us assume the unknown number = x
Then
40x/100 = 55
40x = 55 * 100
40x = 5500
x = 5500/40
  = 550/4
  = 137.5
So55 is 40% of 137.50. I hope the procedure is clear to you and in futureyou can solve such problems on your own without requiring any help fromoutside.This is the simplest way of solving suchproblems.
55 is 40% of 137.5

Convert your percentage into a decimal:
40%/100 = 0.4

Divide 55 by the decimal: 
55 ÷ 0.4 = 137.5
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