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2 years ago

What is 8.4 x 10^-6 in standard notation ?

Mathematics

2 answers:

FinnZ [79.3K]2 years ago

8 0

Is the answer 0.0000084

ivanzaharov [21]2 years ago

6 0

<h3>Answer: 0.0000084</h3>

There are 5 zeros between the decimal point and the '8'

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Explanation:

Move the decimal point 6 spots to the left to go from 8.4 to 0.0000084

There are 5 zeros between the decimal point and the '8'. Each zero digit mentioned represents one move to the left. That sixth move is due to the '8' itself.

Check out the diagram below.

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Evaluate x² + 4x + 1 when x = -3

Masteriza [31]

Substitute -3 to x

(-3)^2 + 4(-3) + 1

9 - 12 + 1

= -2

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2 years ago

Read 2 more answers

Amy is eight years older than twice her cousin Alicia’s age. The sum of their ages is less than 32. Let x represent Alicia's age

horsena [70]

Ok, so amy is 8 years older than twice alica's age
if amy=y and alica=x
y=8+2x

and sum is less than 32
y+x<32

we can subsitute 8+2x for y in other equation
8+2x+x<32
8+3x<32
minus 8 both sides
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divide both sides by 3
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the inequality is x<8

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3 years ago

What is -11-3(5-6)^2?

kolbaska11 [484]

Answer:

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2 years ago

HELP FAST PLEASE! ILL GIVE 20 POINTS PLUS BRAINLIEST!!!!

pav-90 [236]

Answer:

see below

Step-by-step explanation:

The recursive function tells you the first term is 1. That is the meaning of ...

$a_1=1$

It also tells you that to find the next term, you multiply this term by 1/2:

$a_2=\dfrac{1}{2}a_1=\dfrac{1}{2}\cdot 1=\dfrac{1}{2}$

And, to find the next term, you multiply this term by 1/2:

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Then the first three terms are ...

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3 years ago

Twelve different video games showing drug use were observed. The duration times of drug use were recorded, with the times (sec

Vlada [557]

Answer:

95% confidence level should be used for a confidence interval.

The given confidence interval contains the value of 85 sec, so there is not sufficient evidence to support the claim that the mean is greater than 85 sec.

Step-by-step explanation:

0.05 significance level

1 - 0.05 = 0.95

0.95*100% = 95%

This means that a 95% confidence level should be used for a confidence interval.

Confidence interval is found to be −1.8 sec<μ<213.5 sec, what should we conclude about the claim?

Contains the value of 85 sec, thus there is not sufficient evidence to support the claim that the mean is greater than 85 sec.

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2 years ago