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2 years ago

Help help help help help help help

Mathematics

1 answer:

timama [110]2 years ago

4 0

Answer:

D I believe

Step-by-step explanation:

I may not be correct, but i hope this helps!

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Jean can pack 5 cartons in 15 minutes. Which expression can be used to show the number of cartons Jean can pack in x hours? Grou

nadezda [96]

Answer: 20x

Step-by-step explanation:

First we should note that 60 minutes = 1 hour. Therefore, 15 minutes = 15/60 = 1/4 hour

Since Jean can pack 5 cartons in 1/4 hours, the number of carton that he can pack in one hour will be:

= 5 ÷ 1/4

= 5 × 4

= 20 cartons.

Therefore, to get the number of cartons that Jean can pack in x hours, we will multiply 20 by x. This will be:

= 20 × x

= 20x

6 0

2 years ago

Help with num 9 please. thanks

Alik [6]

Answer:

See Below.

Step-by-step explanation:

We want to show that the function:

$f(x) = e^x - e^{-x}$

Increases for all values of <em>x</em>.

A function is increasing whenever its derivative is positive.

So, find the derivative of our function:

$\displaystyle f'(x) = \frac{d}{dx}\left[e^x - e^{-x}\right]$

Differentiate:

$\displaystyle f'(x) = e^x - (-e^{-x})$

Simplify:

$f'(x) = e^x+e^{-x}$

Since eˣ is always greater than zero and e⁻ˣ is also always greater than zero, f'(x) is always positive. Hence, the original function increases for all values of <em>x.</em>

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3 years ago

Help ASAP please!!!

masya89 [10]

Total revenue the previous year would be $46,355

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2 years ago

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Task 1: Billy is trying to download a several apps for his iPhone. His iPhone’s storage capacity is 32GB. The apps he wants

Roman55 [17]

Answer:

Billy can download 6 apps

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2 years ago

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Help! Please answer this! Giving all my points away! NO LINKS! Thank you!

Zanzabum

Answer:

Step-by-step explanation:

200-187=13

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2 years ago