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2 years ago

3. Use Structure Shari is drawing a tree diagram

1 answer:

3 0

The sample space of Shari's tree diagram is the total possible outcomes of rolling the game piece and spinning the pointer.

It doesn't matter if Shari starts with the spinner or the game piece

<h3>How to determine the tree diagram</h3>

The experiment involves:

Rolling a 12-sided game piece
Spinning the pointer of a 4-section spinner

If Shari starts with the game piece, the sample size (n) would be:

n = 12 * 4

n = 48

If Shari starts with the spinner, the sample size (n) would be:

n = 4 * 12

n = 48

Notice that the sample size remains unchanged irrespective of what he starts with

Hence, it doesn't matter if Shari starts with the spinner or the game piece

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2 years ago

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3 years ago

What is the solution to the equation 2k-10/-7 = 8?

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3 years ago

Jill arranges quarters in stacks of increasing powers of 2, starting with the zeroth power (20). If she ends up with six stacks,

Ratling [72]

Stack 1 : 2^0 = 1 quarter.
Stack 2 : 2^1 = 2 quarters.
Stack 3: 2^2 = 4 quarters.
Stack 4: 2^3 = 8 quarters.
Stack 5 : 2^4 = 16 quarters.
Stack 6: 2^5 = 32 quarters.
1 + 2 + 4 + 8 + 16 + 32 = 63
Answer: She used 63 quarters.

8 0

3 years ago

Problem 2

Brilliant_brown [7]

Answer:

Let the 'cart' total is x and total payment is y.

The sales tax is 5.6% added to the 'cart' amount and then shipping and handling fee added.

<u>There are three intervals as below and function added accordingly:</u>

0 < x ≤ 49.99 ⇒ y = x + 5.6% + 3.95 = 1.056x + 3.95
50 ≤ x ≤ 75.99 ⇒ y = x + 5.6% + 11.95 = 1.056x + 11.95
x ≥ 76 ⇒ y = x + 5.6% + 5.95 = 1.056x + 5.95

x = 74.50, this falls in the second interval
y = 74.50*1.056 + 11.95 = $90.62 (rounded )

y = 89.20, this is close to the number we got in part B and we assume it is same - the middle interval.

89.20 = 1.056x + 11.95
1.056x = 89.20 - 11.95
1.056x = 77.25
x = 77.25 / 1.056
x = 73.15 (rounded )

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<em>Note. Shipping and Handling charges seems incorrectly ordered. If so the answers above all should change accordingly.</em>

8 0

3 years ago