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patriot [66]
3 years ago
9

Please simplify the expression.

Mathematics
1 answer:
natka813 [3]3 years ago
8 0
The answer would be C in my opinion
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A straight slide in a playground design makes an isosceles triangle with the
julia-pushkina [17]

Answer:

Option D.

Step-by-step explanation:

  • First, the you need ti understand that the triangle is an isosceles right angled triangle. In other words, the base and height are equal in length. The third side is the slide. This is the longest side.
  • Next, we know that the formula for calculating the area of a right angled triangle is given by:

        A = 1/2 (base × perpendicular height)

  • The perpendicular height is equal to the base. Let's say the base is <em>x</em>. It means that the height is also x, since height = base.
  • Therefore, the formula will be:

       A = 1/2 (x.x)

           =1/2 (x²)

      32 = 1/2 (x²)

     Multiplying both sides by 2 gives:

     32×2 = x²

     64  = x²

       8   = x

To find the third side, we use the Pythagoras theorem:

    C² = A² + B²

         = 8² + 8²

         = 128

   C = √128

       = 8√2

However, the answer will not be exact, so we  multiply the length of the base and height by 2. This gives x = 16 (Length of base = length of height)

Repeating the steps above gives C = √ (16)² + (16)²

                                                           = √256

This corresponds to option D.

3 0
3 years ago
Nine less than a number
olga2289 [7]
Let us say that this number is n

Then we could say:

<em><u>n - 9</u></em>
3 0
3 years ago
Read 2 more answers
1/2 of a box of cereal is divided equally between 4 bowls.How much cereal is in each bowl
slavikrds [6]

Answer:

0.125

Step-by-step explanation:

you have half of box divide that by 4

5 0
4 years ago
a straight line through points p and q is drawn perpendicular to a line through points p(x,y) and r(x,(y+10)) . the possible coo
Dmitrij [34]

On the X-Y plane, the points p and r are on the vertical line X=x. Then the perpendicular (horizontal) line through p will have the equation Y=y. Points q on that line will have coordinates

... q(<anything>, y)

3 0
3 years ago
I need the result of 14?2?7?3?9=10
PilotLPTM [1.2K]

Answer: yes

Step-by-step explanation:

7 0
3 years ago
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