4 years ago

Please help solve number 30 and 31 please-show work to help me unerstand, thank you. :)

1 answer:

8 0

$-2(1-x) \leq 2x-7\\-2+2x \leq 2x-7\\-2 \leq -7\\\sf There~are~no~solutions~to~this~inequality$

There are no solutions because the last, final inequality is false.

$\sf Number ~of ~20~dollar~bills = n\\20n \leq 100\\n = 5$
You can only take a maximum of 5 twenty dollar bills in one transaction.

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Bogdan [553]

Answers:

Function
Not a function
Function
Not a function

========================================

Explanation:

If x repeats itself, then we don't have a function. For instance, relation 2 has the x value -4 show up twice. That input leads to multiple outputs which is why we don't have a function. Relation 4 is a similar story (this time the input 'u' shows up twice).

Relations 1 and 3 don't have this issue, so they are functions.

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3 years ago

Need help fast!!!! Is it Q N

saw5 [17]

Coin 1 is Q, the very top coin is N and the one below that is Q. For the bottom coin 2 that's N and the very bottom is also N and the one on top of the very bottom is Q. I hope that helped!
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3 years ago

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Your favorite dog groomer charges according to your dog's weight. If your dog is 15 pounds and under, the groomer

aliya0001 [1]

Answer:

hope the pics below helps!!

Plz mark brainliest :DD

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3 years ago

Please help!! If f (x) = e^x sin x, then f’ (x) =

shusha [124]

Answer:

$f'(x) = {e}^{x}( \sin x + \cos x )$

Step-by-step explanation:

$f(x) = {e}^{x} \sin x \\ \\ f'(x) = \sin x \frac{d}{dx} {e}^{x} + {e}^{x} \frac{d}{dx} \sin x \\ \\ f'(x) = \sin x \: {e}^{x} +{e}^{x} \cos x \\ \\ f'(x) = {e}^{x}( \sin x + \cos x )$

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3 years ago

A math class has a total of 36 students. The number of females is 10 less than the number of males. How many males and how many

netineya [11]

36=x+(x-10)
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