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Nataliya [291]
3 years ago
8

Which of the following would be an acceptable first step in simplifying the expression (cot x)/(1 - csc x) ?

Mathematics
2 answers:
alukav5142 [94]3 years ago
5 0

Answer:

cotx(1+csc x)/(1-csc x)(1+csc x)

wolverine [178]3 years ago
4 0

Answer: cotx(1+csc x)/(1-csc x)(1+csc x)

Step-by-step explanation:

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Reika [66]
X would equal to -0.6
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3 years ago
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Please help number 9
Ira Lisetskai [31]

Answer:

Option A. 95x + 133y square feet.

Step-by-step explanation:

Area of a rectangular room = Length × Width

Length of the room = Length of carpeted portion + Length of the tiled portion

= (5x + 7y) feet

Width of the living room = 19 feet

Area of the living room = (5x + 7y) × 19

                                      = 95x + 133y Square feet [By distributive property]

Therefore, expression for the total area of the living room is option (A).

3 0
3 years ago
a teacher invested $600 in an account that paid 2% annual simple interest the teacher did not maker any additional deposits or w
horrorfan [7]

Answer:

$36.00

Step-by-step explanation:

The formula for simple interest is I = P x r x t where P is the principal amount, $600.00, r is the interest rate, 2% per year, or in decimal form, 2/100=0.02, and t is the time involved, 3....year(s) time periods. So t is 3....year time periods. To find the simple interest, we multiply 600 × 0.02 × 3 to get that the interest is $36.00 . Usually now, the interest is added onto the principal to figure some new amount after 3 year(s), or 600.00 + 36.00 = 636.00.

4 0
3 years ago
What is the value of f(-2) if f(x) = - 3x2 + 4x - 1
pashok25 [27]

Given the function below:

\large{f(x) =  - 3 {x}^{2}  + 4x - 1}

To find f(-2), we substitute x = -2 in the equation. Since f(-2) means the value of f(x) at x = -2.

\large{f( - 2) =  - 3 {( - 2)}^{2}  + 4( - 2) - 1}

Replace x-term to -2 and evaluate.

\large{f( - 2) =  - 3(4) - 8 - 1} \\  \large{f( - 2) =  - 12 -  8 - 1 \longrightarrow f( - 2) =  - 21}

Answer

  • f(-2) = -21

Let me know if you have any doubts!

4 0
3 years ago
If the third term in an arithmetic sequence is 7 and the common difference is -5, what is the value of the fourth term?
pochemuha
The is Answer:

82

Explanation:

We observe that difference between first and second terms <span>=12−5=7</span>
Similarly difference between second and third terms <span>=19−12=7</span>

It shows that the given sequence of numbers is an arithmetic progression with common difference equal to 7.

We know that <span>nth</span> term of an AP whose first term is <span>a1</span> and whose common difference is d is given by 
<span><span>an</span>=<span>a1</span>+<span>(n–1)</span>d</span>

To find the <span>12th</span> term, insert given values in the general expression
<span><span>a12</span>=5+<span>(12–1)</span>7</span>
<span><span>a12</span>=5+<span>(11)</span>7=5+77=<span>82</span></span>

4 0
3 years ago
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