3 years ago

Can someone please help me i'll upvote everything i swear i'm freaking out

Mathematics

1 answer:

koban [17]3 years ago

3 0

What is it you need??

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a video store took in $5,375 in DVD rentals during july. January sales are expected to be double that amount. If DVDs rent for $

k0ka [10]

I think the answer would be $2,678.6

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3 years ago

4. solve<br> e) 4^x-10.2^x+16=0<br> I think the dot means multiply?

suter [353]

$4^x-10\cdot2^x+16=0\Rightarrow(2^2)^x-10\cdot2^x+16=0\Rightarrow(2^x)^2-10\cdot2^x+16=0$

$subtitute\ 2^x=t > 0\\\\t^2-10t+16=0\\t^2-2t-8t+16=0\\t(t-2)-8(t-2)=0\\(t-2)(t-8)=0\iff t-2=0\ or\ t-8=0\\\\t=2\ or\ t=8\\\\t=2^1\ or\ t=2^3\\\\therefore\ 2^x=2^1\ or\ 2^x=2^3\\\\Answer:\boxed{x=1\ or\ x=3}$

6 0

3 years ago

Read 2 more answers

Help MOI Again PLEASE lol

Evgesh-ka [11]

Answer:

-5a + 20a +-4a - -6= -16

Answer- a= -2

Step-by-step explanation:

Hope this helps!

4 0

3 years ago