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3 years ago

What is the product of 8.2 × 109 and 4.5 × 10-5 in scientific notation?

Mathematics

2 answers:

lora16 [44]3 years ago

5 0

Answer:

3.69 * 10^5

Step-by-step explanation:

$8.2*10^{9} *4.5*10^{-5}\\ = 8.2*4.5*10^{9-5}\\=36.9*10^{4}\\= 3.69 *10* 10^{4}\\= 3.69 * 10^{5}$

maksim [4K]3 years ago

3 0

Answer:

$8.2\times \:10^9=8200000000$

$4.5\times \:10^{-5} = 0.000045$

Step-by-step explanation:

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How can understanding decimals and fractions help you in real, everyday life? What can

Sati [7]

Step-by-step explanation:

Decimals are great for when you are dealing with money and want to round up, and fractions are used when baking (such as need 1/4 or a half cup of something)

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3 years ago

What is COP in mathematics

cluponka [151]

Answer:

Coefficient of Performance

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2 years ago

Iron Man Training While training for an iron man competition, Tony bikes for 60 miles and runs for 15 miles. If his bikes speed

ivolga24 [154]

Answer:

<u>Tony biked 1 hour 40 minutes and run 3 hours 20 minutes.</u>

Step-by-step explanation:

How long did Tony speed on his bike?

Let s to be Tony's running speed, then 8s is Tony's biking speed

Let's recall that Time = Distance/Speed

Bike time + Running time = 5 hrs

Replacing with the real values, we have:

60/8s + 15/s = 5

8s as Lowest Common Denominator

60 + 8 * 15 = 5 * 8s

60 + 120 = 40s

-40s = -180

s = -180-40

s = 4.5 ⇒ 8s = 36

Tony run at 4.5 mph and biked at 36 mph

Now, we can calculate the time, this way:

Bike time = Bike distance/Bike speed

Replacing with the real values, we have:

Bike time = 60/36

Bike time = 5/3 (Dividing by 12)

5/3 hours * 60 = 100 minutes or 1 hour 40 minutes

Running time = 5 hours - 1 hour 40 minutes = 3 hours 20 minutes

<u>Tony biked 1 hour 40 minutes and run 3 hours 20 minutes.</u>

4 0

2 years ago

A customer wants to purchase a sweater from a store.

lawyer [7]

Answer:

$33.60

Step-by-step explanation:

multiply 40 by 0.20 = 8 subtract 8 from 40= 32 x 0.05 is 1.6 so its 33.6

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2 years ago

Pedro makes a base monthly salary of $1500. As a vendor, he must sell $20000 worth of items per month. He also makes a 4% commis

Svet_ta [14]

Answer:

$2540

Step-by-step explanation:

Given parameters:

Base salary of Pedro = $1500

Amount of commission on sales = 4%

Sales = $26000

Unknown:

His total salary including base salary and commission = ?

Solution:

His total salary;

Total salary = Base Salary + (percent on commission x sales)

Total salary = $1500 + ( $\frac{4}{100}$ x $26000)

Total salary = $1500 + $1040

Total salary = $2540

7 0

3 years ago