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3 years ago

Find DE 3x - 28 D 3x - 30 х G E F 33

Mathematics

1 answer:

weeeeeb [17]3 years ago

6 0

Answer:

EG= 18

Step-by-step explanation:

Please see the attached picture for the full solution.

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What is the name of the green segment in the hyperbola below?

Zielflug [23.3K]

The answer should be OC. Major Axis

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1 year ago

HELP!!!!!!!

igomit [66]

Substituting the data points into the model:

f(x)= -x2 + 2x -3

f(-2)=-11

f(0)=-3

f(1)=-2

f(3)=-6

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So A is the right ans.

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3 years ago

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Iodine-125 has a half-life of about 60 days.

Murljashka [212]

62.5 mg sample will remain after 240 days

Step-by-step explanation:

Given

Half-life = T = 60 days

The formula for calculating the quantity after n half lives is given by:

$N = N_0(\frac{1}{2})^n$

Here

N is the final amount

N_0 is the initial amount

n is the number of half lives passed

The number of half lives are calculated by dividing the time for which the remaining quantity has to be found by half life

The quantity has to be calculated for 240 days so,

$n = \frac{240}{60}\\n = 4$

Given

$N_0 = 1000\ mg$

Putting the values in the formula

$N = 1000 (\frac{1}{2})^4\\=1000 * \frac{1}{16}\\=\frac{1000}{16}\\=62.5\ mg$

Hence,

62.5 mg sample will remain after 240 days

Keywords: Half-life, sample

Learn more about half-life at:

#LearnwithBrainly

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3 years ago

What does "sum" mean in math?

Alexxx [7]

In math the sum means to add

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3 years ago

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The difference between one-fifth of a number and 4 is -75

Varvara68 [4.7K]

Think of this as (1/5)x - 4 = -75, where x is the number that we are trying to figure out. To figure this out, we want to get x by itself, so we can go:

(1/5)x=-71
x=-71*5
x=-355

So your number is -355

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3 years ago