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lesya [120]
3 years ago
8

Question 10 Multiple Choice Worth 1 points)

Mathematics
1 answer:
Elis [28]3 years ago
3 0

Answer:

Length = 8 feet

Step-by-step explanation:

Perimeter = 2 x ( length + width )

20 = 2 x (length + 2)

10 = Length + 2

10 - 2 = Length

Therefore, Length = 8 feet

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It is cheaper to have the monthly membership for 7 months, after that it costs more
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4 years ago
Solve for [0,2pi): 3sin^2x-6sinx=0
Ainat [17]

Given the equation :

3\sin ^2x-6\sin x=0

Let: y = sin x

So,

\sin ^2x=y^2

the given equation will be:

3y^2-6y=0

Solve for y, take 3y as a common:

\begin{gathered} 3y(y-2)=0 \\ 3y=0\rightarrow y=0 \\ y-2=0\rightarrow y=2 \end{gathered}

so,

\begin{gathered} y=0\rightarrow\sin x=0\rightarrow x=0or\pi \\ y=2\rightarrow\sin x=2 \end{gathered}

Note: the range of sine function is [ -1, 1]

So, sin x = 2 ( is rejected)

So, the answer will be: x ={ 0 , pi }

3 0
1 year ago
What questions do you still have about what we’ve learned
GenaCL600 [577]
Depending on what you’ve learned make a question about your opinion.
6 0
3 years ago
City A is 25% less than population of city B so city A's population is what % of city B
Lerok [7]

City A is 25% less than population of city B. So city A's population is 75% of city B

<h3><u>Solution:</u></h3>

Given that City A is 25% less than population of city B

To find: city A's population is what % of city B

From given information,

City A is 25% less than population of city B

A = B - 25% of B

So we can write as,

A = B - \frac{25}{100} \times B\\\\A = B - 0.25B\\\\A = 0.75B

A = 0.75B can be written as,

A = \frac{75}{100}\times B

city A = 75 % of City B

Thus city A's population is 75% of city B

8 0
4 years ago
(Please help :) Look at the sequence of numbers in each question and write the expression using n (find the nth term, eg, 3n+6)
lianna [129]

Answer:

1. 4n+2

2. 2n+2

3. 5n-3

4. 4n+1

5. 3n

That's all I can work out I'm sorry

3 0
4 years ago
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