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Ronch [10]
3 years ago
8

Suzie made a placemat shaped like an equilateral triangle and wants to put trim around the edges. The length of one side of the

placemat is 18 in.
How much trim does Suzie need?
Mathematics
1 answer:
MAXImum [283]3 years ago
8 0
Suzie needs enough trim to cover the perimeter of the triangle. So she need enough to cover each side of 18. Thus 18 x 3 = 54 and 54 is your answer.
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in a certain game, a fair die is rolled and a player gains 20 points if the die shows a 6. if the die does not show a 6, the pla
BaLLatris [955]

The expected gain or loss is an illustration of mean and expected values.

The expected total gain is 83 points

The given parameters are:

  • Addition of 20 points for rolling a 6
  • Removal of 3 points for not rolling a 6

The probability of rolling a 6 in a fair die is 1/6.

The probability of not rolling a 6 in a fair die is 5/6.

So, the expected gain in each game is:

\mathbf{E(x) = 20 \times \frac 16 - 3 \times \frac 56}

\mathbf{E(x) = \frac{20}6 -  \frac{15}6}

Take LCM

\mathbf{E(x) = \frac{5}6}

\mathbf{E(x) = 0.83}

The number of games is 100.

So, the expected gain is:

\mathbf{Gain = 100 \times 0.83}

\mathbf{Gain = 83}

Hence, the expected total gain is 83 points

Read more about expected value at:

brainly.com/question/13499496

5 0
3 years ago
I need help with all of these
Olin [163]
If you take your calculator and enter in -82+28 it should give you the answer easily If you dont have one use ur phone.

Easiest way 1.o.1
6 0
4 years ago
What role does Geometric formulas have in our lives??
amid [387]
Geometry helps us in deciding what materials to use, what design to make and also plays a vital role in the construction process itself. Different houses and buildings are built in different geometric shapes to give a new look as well as to provide proper ventilation inside the house.

Hope that helped :)
5 0
4 years ago
-5(x-3+7x=35 what is x​
Cloud [144]

Answer:

x=-1/2

Step-by-step explanation:

-5(x-3+7x=35)=-5(x-3+7 <em>x </em>35=x)

(-5)x+(-5)(-3)+(-5) <em>x</em> 7x=35

-5x+5x<em>x </em>3-5 <em>x </em>7x=35

-40x+15=35

3 0
3 years ago
What 2 numbers should be used to find 231 - 198 using the 10 method for subtracting quickly in your head?
Airida [17]

Answer: "Count 2 and then count 31 more."

Step-by-step explanation:

We have the equation:

231 - 198

Now, the negative number is kinda ugly, so i will write it as:

200 - 2 = 198

Is a lot easier work with 200 and 2, than with 198.

Then the equation is now:

231 - (200 - 2)

And the left number we also have a "200", so it can be written as:

200 + 31 = 231

As this is a sum, we can ignore the parentheses.

200 + 31 - 200 + 2

31 + 2

Then the correct option is:

"Count 2 and then count 31 more."

4 0
4 years ago
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