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2 years ago

What is 68 billion written as in scientific notation

Mathematics

2 answers:

liraira [26]2 years ago

5 0

Its just simply 6.8*10^10

erastova [34]2 years ago

3 0

The answer is: " 6.8 * 10¹⁰ " .
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Note: 68 billion = 68,000,000,000 ;
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           6.8 * 10^(raised to the number of digits that following the
{"single, whole number digit"—which is: "6" } ;

  ⇒ (which comprises the number "8" PLUS the number of zeros that follow).

So, we have the number: "8" ; which is: 1 digit ;
     and we have: nine "0's" ; which are: 9 digits;
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     ⇒ for a total of: "1 digit PLUS 9 digits = 10 digits" .
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So;  68 billion = 6.8 * 10^10 ; that is;
__________________________________________________
                  ⇒   " 6.8 * 10¹⁰ " .
__________________________________________________

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Hi there!

Tangent is a trigonometry ratio, and it is the value of the side opposite the angle over the side adjacent to the angle.

The side that is opposite angle B is side CA which is equal to 2.
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2 years ago

Read 2 more answers

Make x the subject of the following relations. 2y+3=5x-18

nekit [7.7K]

Step-by-step explanation:

2y+3=5x-18

swap both sides

5x-18=2y+3

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5x-18+18=2y+3+18

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divide both sides by

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6 0

2 years ago

Davion wants to buy 4 tickets to a basketball game. He sees that there is a discount for $25 off his entire purchase at checkout

KATRIN_1 [288]

Answer:

$60 per ticket

Step-by-step explanation:

$215 is what it costs after the discount, so add the amount taken off, back on.

215+25

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2 years ago

A survey conducted five years ago by the health center at a university showed that 18% of the students smoked at the time. This

podryga [215]

Answer:

test statistic (Z) is 2.5767 and p-value of the test is .009975

Step-by-step explanation:

$H_{0}$ : percentage of students who smoke did not change

$H_{a}$ : percentage of students who smoke has changed

z-statistic for the sample proportion can be calculated as follows:

z= $\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } }$ where

p(s) is the sample proportion of smoking students ( $\frac{50}{200}$ =0.25)

p is the proportion of smoking students in the survey conducted five years ago (18% or 0.18)
N is the sample size (200)

Then, z= $\frac{0.25-0.18}{\sqrt{\frac{0.18*0.82}{200} } }$ ≈ 2.5767

What is being surveyed is if the percentage of students who smoke has changed over the last five years, therefore we need to seek two tailed p-value, which is .009975.

This p value is significant at 99% confidence level. Since .009975 <α/2=0.005, there is significant evidence that the percentage of students who smoke has changed over the last five years

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2 years ago

Which table contains only corresponding x-values and y-values where the value of y is one more than the product of x and 2?

Dmitry [639]

Answer:

Option (C)

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4 0

2 years ago