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2 years ago

Solve this pls 5) 3x6-4=?

Mathematics

2 answers:

igor_vitrenko [27]2 years ago

5 0

Answer:

Step-by-step explanation:

Multiply 3 by 6

18-4

Subtract 4 from 18

lina2011 [118]2 years ago

4 0

Answer:

Step-by-step explanation:

Use PEMDAS to complete the problem

PE doesn't matter, there's not parentheses or exponents

MD=Multiplication and Division. Do 3*6=9, now your problem looks like 9-4

AS=Addition and Subtraction. 9-4=5

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A radioactive material is known to decay at a yearly rate proportional to the amount at each moment. There were 1000 grams of th

Mandarinka [93]

Answer:

Amount left is 941.95 g.

Step-by-step explanation:

initial amount = 1000 g

time = 10 years

amount left = 980 grams

Now

$980 = 1000 e^{-\lambda t}\\\\e^{\lambda\times 10}= 1.02\\\\10 \lambda = ln 1.02\\\\\lambda = 1.98\times10^{-3} per year$

time t = 20 years

Let the amount is N.

$980 = 1000 e^{-\lambda t}\\\\e^{\lambda\times 10}= 1.02\\\\10 \lambda = ln 1.02\\\\\lambda = 1.98\times10^{-3} per year\\N = 980 e^{- 1.98\times 10^{-3}\times 20}\\\\ln N = ln 980 - 0.0396\\\\ln N = 6.88 - 0.0396 = 6.86\\\\N = 941.95 g$

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3 years ago

Jesse is traveling up and down a stream in a kayak. He can paddle the kayak at an average rate of 5 miles/hour, and the round-tr

Ostrovityanka [42]

The time it takes = 3 hours 12 minutes

Rate is a ratio which compares two quantities of different units.

Analysis:

Speed = 5 miles/hour

distance covered = 16 miles

speed taken = distance covered/time taken

time taken = 16/ 5 = 3.2 hours = 3 hours 12 minutes

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2 years ago

A music concert has 700 people attend it. Of the 700, 8% of the people arrived late and 12% of the people buy a t-shirt. How man

Sergio039 [100]

Answer:

56 people are late, 6 people that are late buy shirts, 644 people are on time

Step-by-step explanation:

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3 years ago

Which words can be used as subjective pronouns? (1 point) O her, us Omine, yours O they, you O his, them

JulsSmile [24]

The words that can be used as subjective pronouns are they and you

<h3>How to determine the words?</h3>

From the question, the word category is:

subjective pronouns

By definition, these are pronouns that can be used as a subject

In English, the subjective pronouns are I, you, he/she/it, we, you, they and who.

Hence, the words that can be used as subjective pronouns are they and you

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2 years ago

I need help with these .help me plz

Zepler [3.9K]

Answer:

The answer to your question would be Area = 280.13

Step-by-step explanation:

Area of the circle without the square: 380.13

Area of the square: 100

380.13 - 100 = 280.13

3 0

4 years ago