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3 years ago

An electronics store sends an email survey to all customers who bought tablets.

Mathematics

1 answer:

Fudgin [204]3 years ago

6 0

I think you forgot to add the rest of the question

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A bacteria culture starts with 100 bacteria and doubles in size every half hour. (a) how many bacteria are there after 4 hours?

Savatey [412]

19200 all you have to do to figure this out is multiply 100 times 8 since the is 8 halfs in 4 hours.
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4 years ago

I need help ill do anything

alexgriva [62]

Answer:

A n y t h i n g y o u s a y ?

The answer is J. 42

Could I be Brainliest pls...?

Even if I'm not Brainliest, have a lovely day! <3

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3 years ago

Erika calculated that she would spend $115 on school supplies this year. She actually spent $82.50 on school supplies. What is E

DerKrebs [107]

The equation to find percent error is:
percent error=(experimental-theoretical)/theoretical *100
So, (115-82.5)/82.5=0.393939*100
39.3939%, or 39.94%

Hope this helps!!

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3 years ago

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Hellllpme!!!!! ASAP!

Vikki [24]

Answer:

Step-by-step explanation:

This notation says that x+x+x+x+37=69

This can be simplified to say 4x+37=69

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3 years ago

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Write the equation of the conic section with the given properties:

timurjin [86]

Answer:

$\frac{x^2}{64} + \frac{y^2}{25} =1$

Step-by-step explanation:

An ellipse with vertices (-8, 0) and (8, 0)

Distance between two vertices = 2a

Distance between (-8,0) and (8,0) = 16

2a= 16

so a= 8

Vertex is (h+a,k)

we know a=8, so vertex is (h+8,k)

Now compare (h+8,k) with vertex (8,0) and find out h and k

h+8 =8, h=0

k =0

a minor axis of length 10.

Length of minor axis = 2b

2b = 10

so b = 5

General formula for the equation of horizontal ellipse is

$\frac{(x-h)^2}{a^2} + \frac{(y-k)^2}{b} =1$

a= 8 , b=5 , h=0,k=0. equation becomes

$\frac{(x-0)^2}{8^2} + \frac{(y-0)^2}{5} =1$

$\frac{x^2}{64} + \frac{y^2}{25} =1$

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3 years ago