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4 years ago

4. A customer at a store paid $64 for

Mathematics

2 answers:

Rus_ich [418]4 years ago

4 0

Answer:

no help

Step-by-step explanation:

melisa1 [442]4 years ago

3 0

Hi wow are we doing boos

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Which one i greater 2/8 or 1/2 ?

ryzh [129]

$\frac{2}{8}=\frac{1}{4}\\
\frac{1}{2}=\frac{2}{4}\\\\
\frac{2}{4}>\frac{1}{4} \Rightarrow\frac{1}{2}>\frac{2}{8}$

5 0

3 years ago

Find the surface area of a solid cylinder with radius 2m and length 6m ( famula)π=3.14

Softa [21]

Answer:

100.544m

Step-by-step explanation:

Surface area of a cylinder = 2pie x rh + 2pie x r² where pie = 3.142

Therefore, (2x3.142x2x6) + (2x3.142x2²) =100.544m

6 0

3 years ago

How do you simplify -4+(-1)-(-3)

Elanso [62]

Answer:-2

Explanation:

-4-1-(-3)

=-5-(-3)

=-2

Hope this helps :)

8 0

3 years ago

Read 2 more answers

The sum of two numbers is 41. The larger number is one more than four times the smaller number. What are the numbers?

EleoNora [17]

Answer:

8+ 33

Step-by-step explanation:

8+33=41

8 (the smaller number) times 4 equals 32.

The number 33 is one more than 32.

Hope this helps!

4 0

3 years ago

Find the sum \[\sum_{k = 1}^{2004} \frac{1}{1 + \tan^2 (\frac{k \pi}{2 \cdot 2005})}.\]

vampirchik [111]

Answer:1002

Step-by-step explanation:

$\Rightarrow \sum_{k=1}^{2004}\left ( \frac{1}{1+\tan ^2\left ( \frac{k\pi }{2\cdot 2005}\right )}\right )$

and $1+\tan ^2\theta =\sec^2\theta$

and $\cos \theta =\frac{1}{\sec \theta }$

$\Rightarrow \sum_{k=1}^{2004}\left ( \cos^2\frac{k\pi }{2\cdot 2005}\right )$

as $\cos ^2\theta =\cos ^2(\pi -\theta )$

Applying this we get

$\Rightarrow \sum_{1}^{1002}\left [ \cos^2\left ( \frac{k\pi }{2\cdot 2005}\right )+\cos^2\left ( \frac{(2005-k)\pi }{2\cdot 2005}\right )\right ]$

every $\theta$ there exist $\pi -\theta$

such that $\sin^2\theta +\cos^2\theta =1$

therefore

$\Rightarrow \sum_{1}^{1002}\left [ \cos^2\left ( \frac{k\pi }{2\cdot 2005}\right )+\cos^2\left ( \frac{(2005-k)\pi }{2\cdot 2005}\right )\right ]=1002$

6 0

3 years ago