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3 years ago

Which of the following numbers is not expressed in scientific notation? Why is it not in scientific notation?

Mathematics

2 answers:

Nat2105 [25]3 years ago

7 0

Answer:

1. 19*10^8

2. B, C, D

the number has to be between 1-10 . it cannot be greater

Alekssandra [29.7K]3 years ago

5 0

Answer:

D. 19x10^8

Step-by-step explanation:

I has to be less than 10

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Using the Binomial Probability table, find P(X) when n = 7, X < 3, and p = 0.5 A. 0.273 B. 0.500 C. 0.227 D. 0.773

Nat2105 [25]

Answer:

0.227

Step-by-step explanation:

Given that X is binomial with n=7 and p =0.5

To find the probability for P(X<3)

i.e. we have to find prob as =P(x=0,1,2)

=P(X=0)+P(X=1)+P(x=2)

P(X=r)=7Cr(0.5)^7

Using binomial table we find prob

P(X<3)=0.2265

Round off this to 3 decimals as

0.227

Hence answer is 0.227

8 0

3 years ago

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Sidana [21]

The hardest math problem is solving life, I mean this because everyone is trying to make good decisions which means you never stop thinking through your whole day

6 0

3 years ago

The perimeter of the rectangle is 28 units.

kakasveta [241]

Answer:

5 units

Step-by-step explanation:

P= 2 (l + w) = 2 x (9 + 5) = 28

8 0

3 years ago

for the decimal 0.555 the value of the digit in the tens place is how many times as much as the value of the digit in the thousa

NNADVOKAT [17]

The value of the digit in the tens place is 100 times as much as the value of the digit in the thousands place.

7 0

3 years ago

Read 2 more answers

A day can be evenly divided into 86,400 periods of 1 second; 43,200 periods of each 2 seconds; or in many other ways. In total,

Leni [432]

Answer:

96 ways

Step-by-step explanation:

Given

$Day = 86400\ seconds$

Required

Ways to divide it into period of seconds

What this question implies is to determine the total number of factors of 86400

To start with, we determine the prime factorization of 86400

To do this, we continually divide 86400 by 2; when it can not be further divided, we divide by 3, then 7, then 11...

$86400/2 = 43200$

$43200/2=21600$

$21600/2=10800$

$10800/2=5400$

$5400/2= 2700$

$2700/2 = 1350$

$1350/2=675$

$675/3=225$

$225/3=75$

$75/3=25$

$25/5=5$

$5/5 = 1$

This implies that:

$86400 = 2^7 * 3^3 * 5^2$

The number of factors d is the solved by:

$d = (a+1)*(b+1) *(c+1)$

Where

$n = 2^a * 3^b * 5^c$

By comparison:

$a = 7$

$b = 3$

$c=2$

So:

$d = (7+1)*(3+1) *(2+1)$

$d = 8*4 *3$

$d = 96$

<em>Hence, there are 96 total ways</em>

7 0

3 years ago