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Paul [167]
3 years ago
11

Is -cos(x) the same as cos(-x)?

Mathematics
1 answer:
miss Akunina [59]3 years ago
6 0

Answer:

Not the same

Because if it derives, it will be positive and the other negative

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bill can answer 41 math questions every 20 minutes how many math questions can he answer in 40 minutes and 80 minutes
Annette [7]
20 minutes × 2 = 40 minutes
41 questions × 2 = 82 questions

40 minutes × 2 = 80 minutes
82 questions × 2 = 164 questions
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3 years ago
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What is the equation of the line that passes through the points (–2, 2) and (0, 5)?
lana66690 [7]

Answer:

The equation of line is given by

y=\frac{3}{2}x+5

Step-by-step explanation:

We have been given the points (–2, 2) and (0, 5) and we have to find the equation of the line.

Let us first find the slope of the line using the formula

m=\frac{y_2-y_1}{x_2-x_2}

On substituting the values, we get

m=\frac{5-2}{0+2}

m=\frac{3}{2}

Now, using the point slope form, the equation of line is given by

y-y_1=m(x-x_1)\\y-2=\frac{3}{2} (x+2)\\\\y-2=\frac{3}{2}x+3\\\\y=\frac{3}{2}x+5

Therefore, the equation of line is given by

y=\frac{3}{2}x+5

6 0
4 years ago
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List sale price of each item<br> $25; markdown 12%<br> $16.45; markdown 33%
BartSMP [9]
1st question - $22

25 x .12 = 3.00

25 - 3 = 22

2nd question - $ 11.03

16.45 x .33 = 5.4285 (don't round yet)
16.45 - 5.4285 = 11.0215
( round up) $11.03
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4 years ago
What is the square root of 2 ?
Ivanshal [37]

Answer:


Step-by-step explanation:

1.414213562 or 1.4 rounded to the nearest tenth.

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-4 is the answer in this problem
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