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vladimir1956 [14]
3 years ago
10

while dean was visiting his sister in belleville, he bought a rug that was marked down 60% from an original price of 25. If the

sales tax in Belleville is 10%, what was the total cost of the rug
Mathematics
1 answer:
cupoosta [38]3 years ago
7 0
I’m pretty sure it costs 11 dollars or whatever the currency is. I could be wrong
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Solve the following equation on the interval [0, 2π). tan^2x sin x = tan^2x
Alenkasestr [34]
<h3>Given</h3>

tan(x)²·sin(x) = tan(x)²

<h3>Find</h3>

x on the interval [0, 2π)

<h3>Solution</h3>

Subtract the right side and factor. Then make use of the zero-product rule.

... tan(x)²·sin(x) -tan(x)² = 0

... tan(x)²·(sin(x) -1) = 0

This is an indeterminate form at x = π/2 and undefined at x = 3π/2. We can resolve the indeterminate form by using an identity for tan(x)²:

... tan(x)² = sin(x)²/cos(x)² = sin(x)²/(1 -sin(x)²)

Then our equation becomes

... sin(x)²·(sin(x) -1)/((1 -sin(x))(1 +sin(x))) = 0

... -sin(x)²/(1 +sin(x)) = 0

Now, we know the only solutions are found where sin(x) = 0, at ...

... x ∈ {0, π}

8 0
3 years ago
1.<br> Find the product of -12 and -6.
Alborosie

Answer:

72

Step-by-step explanation:

Multiply. Note that when you multiply two negative numbers, the answer will be positive.

Combine:

-12 * -6 = 12 * 6 = 72

72 is your answer.

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5 0
3 years ago
A 20-ounce candle is expected to burn for 60 hours. A 12-ounce candle is expected to burn for 36 hours. Assuming the variables a
ANTONII [103]
Because the ratio for both candles is 20/60 or 1/3 then take the number of ounces the candle has and divide by 1/3. In expression: 9 / 1/3 => 9 * 3 = 18
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3 years ago
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Answer:

B. 4t=27

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let t be the price of one ticket,

since there are 4 people buying tickets in total, the price of 4 tickets would be 4t.

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If a circle has a diameter of 15 inches, can it also have a chord of 20 inches? Explain
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