All categories

3 years ago

What is the product of 630 and 7.2 x 10^4 expressed in scientific notation

Mathematics

1 answer:

adell [148]3 years ago

4 0

Don’t help this person

You might be interested in

Please Please help me

Inessa [10]

Answer:

1. 30

Step-by-step explanation:

First, place the numbers from least to greatest.

11,13,23,37,45,58

Then, find the middle number (or two middle numbers).

In this case, the middle numbers are 23 and 37.

Third, we find the mean of these numbers.

23+37=60

60/2=30

So your answer is 30.

Repeat this method for the other problems.

4 0

3 years ago

A dentist polls his patients and finds that 83 percent brush their teeth at least twice a day, 47 percent floss daily, and 19 pe

puteri [66]

Answer:

The correct option is B. 23%

Step-by-step explanation:

Let the event that patient brushes his teeth at least twice a day is denoted by A

So, P(A) = 0.83

Let the event that patient flosses daily is denoted by B

So, P(B) = 0.47

Now, it is given that 19 percent patients brush at least twice a day and floss daily.

⇒ P(A and B) = 0.19

Now, we need to find conditional probability of occurring event B given A has occurred.

$\implies P(B|A) =\frac{P(A\: and\: B)}{P(A)}\\\\\implies P(B|A) = \frac{0.19}{0.83}\\\\\implies P(B|A) = 0.2289\approx 0.23$

Hence, Nearest required percentage = 23%

Therefore, The correct option is B. 23%

4 0

3 years ago

Read 2 more answers

GCF of 30 and 54 and why

statuscvo [17]

30= 2,3,5
54=2,27
GCF=1620

6 0

3 years ago

Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only)

Semmy [17]

Hello,

sin y=4/20=1/5

==> y=11,5369590...°

4 0

3 years ago

Read 2 more answers

Simplify 3√-1000 and 3√g6h30

aliya0001 [1]

Answer:

$\sqrt[ ]{1000}$

Step-by-step explanation:

$3 \sqrt{ - 1000} = 3 \sqrt{1000i {}^{2} } \\ = 3 \times 10i \\ = 30i \\ (in \: complex \: form \: i {}^{2} = - 1)$

6 0

3 years ago