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3 years ago

What is the surface area of the rectangular prism below?

Mathematics

1 answer:

sveta [45]3 years ago

3 0

Where is the picture

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Describe a way to check the correctness of a subtraction answer.

Tamiku [17]

Step-by-step explanation:

Well in general, we can represent subtraction as: $x-y=z$

"z" represents the difference, and it really just represents x with y taken away. So if we were to "give back" this y value, we should get "x".

This means that: $z+y=x$

So one way to check, is adding the value that's being subtracted (y value) and the difference (z value), this should get you the value that is being subtracted from (x value). If you don't get the original value that's being subtracted from (x-value) then you know the answer you got is wrong.

3 0

1 year ago

Help me pleasseeeee!!! its about algebraic properties of limits!

s2008m [1.1K]

$\text{Hello there! :)}$

$3. \sqrt{2} \\\\\text{4. 0}\\\\\text{5. dne}$

$\text{To find the overall limit, they must approach the same y-value from each side:}$

$\\\\3. \lim_{x \to \frac{\pi }{4} } 2sinx ={\sqrt{2}$

$\text{Therefore:}\\\\3. \lim_{x \to \frac{\pi }{4} } f(x)= {\sqrt{2} }$

$\text{For this question, evaluate the limit from the RIGHT-HAND side:}\\\\4. \lim_{x \to \pi +} f(x)\\\\ \text{Use the equation tanx to evaluate since it involves values greater than \pi:}\\\\$

$\lim_{x \to \pi +} tanx = 0\\\\\text{So:}\\\\ \lim_{x \to \pi +} f(x) = 0$

$5. \\\\\text{Evaluate the overall limit. Make sure both sides approach the same y=value:}\\\\ \lim_{x \to \pi } 2cosx= -2\\\\ \lim_{x \to \pi } tanx = 0\\\\ \text{ Therefore:}\\ \lim_{x \to \pi } f(x) = dne \text{ (Does not exist})$

5 0

3 years ago

A tablet computer costs 189.69. it is marked up 30%. What is the final price of the tablet computer after its marked up.

saveliy_v [14]

The initial cost is 189.69. It is marked up 30%.

By simple calculations,

Final cost of the tablet computer = Initial price + 30% of marked price

= 189.69 + (30/100 x 189.69)

This gives us the net value of 245.7. Hence the price of the computer after it's been marked up will be 245.7

6 0

3 years ago

Read 2 more answers

For f (x) = x2 - 5, find f (x) when x = 0 and when x = 3<br> f (0) =<br> f (3) =

Bas_tet [7]

Answer:

1 minus 1 is 0

Step-by-step explanation:

1-1 equals 0

7 0

3 years ago

Large takes a square piece of cardboard and cut for it by 4 inch squares out of each corner because the sides up to make a box w

chubhunter [2.5K]

If the squares are 4 inches then the height of the sides will be 4 inches, so you multiply the area of the base times 4!

6 0

3 years ago