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yKpoI14uk [10]
3 years ago
10

I need help on this​

Mathematics
1 answer:
Dvinal [7]3 years ago
5 0

Answer:

1/12, 1/10

Step-by-step explanation:

P(Bead bracelet and red shoes) - 3/3 x 2 x 2

3/12=1/4 for bead bracelet

Red shoes - 1/3

Total probability for P(Bead bracelet and red shoes=1/4 x 1/3=1/12

P(Elastic bracelet and black shoes)

2/3 x 2 x 2

2/12=1/6 for elastic bracelet

Black shoes - 3/5

Total probablility for P(Elastic bracelet and black shoes)=1/6 x 3/5=3/10=1/10

Hope I helped!

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Answer:

A.) 555 in.^2

Step-by-step explanation:

When solving these types of things, I usually like to cut it up into smaller, easier to manage shapes.

  • You can cut that trapezoid into two triangles and one rectangle.
  • Since both triangles are the same size, you don't need to divide the base and height by two, so you'll get the area of both triangles combined (which saves some work).
  • We know the length of the rectangle and bases of the triangle <em>combined</em> is 44 inches, and that the length of <em>just the rectangle</em> is 30 inches, so we can just subtract 30 from 44 and divide it by two for the base of a triangle.

                                                      44 - 30 = 14

                                                      14/2 = 7

Now that we filled in the information not listed, we can finally solve:

 The base of one triangle is 7 inches, and the height is 15 inches.

Now, we just multiple and divide it by 2 for one triangle (it would be 52.5 inches).

But, we don't need to divide it by two because both triangles are the same size, so we can just get the sum of the area of <em>both triangles combined</em> by skipping that step (<em>because triangles are half a square and two of those triangles make a full square</em>).

7 x 15 = 105

<u>The area of both triangles combined: 105 in.^2</u>

 Next, we need to solve the area of the rectangle. This is easy considering all you have to do is multiply 15 by 30 (<em>length times width</em>).

15 x 30 = 450

<u>The area of the rectangle: 450 in.^2</u>

 Now, the final step. Addition. All you need to do is add up all the sums, and you're done.

450 + 105 = 555

<u>The area of entire figure: 555 in.^2</u>

<em>NOTE: the symbol '^' represents exponents, so when you see 555 in.^2, it means inches squared (or to the power of 2)</em>

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