3 years ago

A soduim isotpe, Na24, has a life of 15 hours

Mathematics

1 answer:

masha68 [24]3 years ago

4 0

What's the question?

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How can 400x20 help solve 399x20

Dvinal [7]

What you can do is multiply 400*20= 8,000. From here, we know that 399*20 is just one less group of 20 than 400. Therefore, we can subtract (1*20) from 8,000 to get the final answer.

8000-20=7980

Hope this helps!

5 0

3 years ago

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A media company wants to track the results of his new marketing plan so the video production manager recorded the number of use

konstantin123 [22]

Answer:

$f(x)=5120(5)^{x}$

Step-by-step explanation:

From the image, f(x) and x are rlated by

$f(x)=a( {b})^{x}$

where b is the common ratio

We first find the value for b

$\frac{6400}{5120}= 5$

$\frac{8000}{6400}= 5$

$\frac{10000}{8000} = 5$

$\frac{12500}{10000} = 5$

$\frac{15625}{12500}=5$

so we can say the common ratio, b=5

we put in any value of f(x) and the corresponding value for x to find a value

Let put x=0 and f(x)=5120

This implies that

$5120 = a(5)^{0}$

but

$5^{0} = 1$

Hence a=5120

Thus the equation which model the relationship between the weeks and the viewers is

$f(x)=5120(5)^{x}$

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2 years ago

Robert had two of rope he cut off eight inches how many inches does he have left

pishuonlain [190]

16 inches. 24 - 8 = 16.

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3 years ago

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Classify this triangle

Gekata [30.6K]

Answer:

Right triangle

Step-by-step explanation:

becuase it is

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3 years ago

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Please help me with this question!

KatRina [158]

Answer:

Step-by-step explanation:

64.12 is closer to 63 and 7.47 is closer to seven hope i helped you!

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3 years ago