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3 years ago

What is the equation for 8x=40

Mathematics

2 answers:

boyakko [2]3 years ago

7 0

The answer to the question is 5

Alla [95]3 years ago

5 0

Remark

What exactly do you want? You have written the equation. So perhaps what you would like is the value for x.

When people start doing algebra usually they are asked what multiplied by 8 will give 40. There is no procedure to that, just an answer.

8 times 5 = 40. So the answer is 5.

You do know that 8x means 8*x or multiply 8 times x do you not?

Procedure

8*x = 40 Divide both sides by 8

8x ÷ 8 = 40÷8

x = 5

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2 years ago

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3 years ago

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3 years ago

(Hypothetical.) Suppose a certain person's reaction time, in seconds, for pressing a button on a visual cue has the following cu

Sonbull [250]

Answer:

the probability the person's reaction time will be between 0.9 and 1.1 seconds is 0.0378

Step-by-step explanation:

Given the data in the question;

the cumulative distribution function F(x) = $1 - \frac{1}{(x + 1)^3}$ ; $x > \theta$

probability the person's reaction time will be between 0.9 and 1.1 seconds

P( 0.9 < x < 1.1 ) = P( x ≤ 1.1 ) - P( x ≤ 0.9 )

P( 0.9 < x < 1.1 ) = F(1.1) - F(0.9)

= [ $1 - \frac{1}{(x + 1)^3}$ ] - [ $1 - \frac{1}{(x + 1)^3}$ ]

we substitute

= [ $1 - \frac{1}{(1.1 + 1)^3}$ ] - [ $1 - \frac{1}{(0.9 + 1)^3}$ ]

= [ $1 - \frac{1}{(2.1)^3}$ ] - [ $1 - \frac{1}{(1.9)^3}$ ]

= [ $1 - \frac{1}{(9.261)}$ ] - [ $1 - \frac{1}{(6.859)}$ ]

= [ 1 - 0.1079796998 ] - [ 1 - 0.1457938 ]

= 0.8920203 - 0.8542062

= 0.0378

Therefore, the probability the person's reaction time will be between 0.9 and 1.1 seconds is 0.0378

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2 years ago

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SpyIntel [72]

Answer:

I think the perimeter of the diagram is 5 and if you round it like

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2 years ago