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Diano4ka-milaya [45]
3 years ago
14

Simplify 4c - 5c + 6c

Mathematics
1 answer:
elixir [45]3 years ago
3 0
Really !  Why do you let math scare you like that ? ?

How about this:       (4 cows) - (5 cows) + (6 cows)

I'll bet you have no problem seeing that it's  5 cows .

So why do you totally clutch when they're just  C's  instead of cows ? ?
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A new episode of Charlie's favorite TV series will be aired 25 minutes after Charlie gets home from school. Which method should
Deffense [45]

Answer:

Charlie should look at a clock

Step-by-step explanation:

5 0
3 years ago
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An experiment involves selecting a random sample of 256 middle managers for study. One item of interest is their annual incomes.
lesantik [10]

Answer:

the standard error is 153.125

Step-by-step explanation:

given that

The random sample is 256

The sample mean is $35,420

And, the standard deviation is $2,450

We need to find out the standard error

We know that

= standard deviation ÷ √random sample

= 2450 ÷ √256

= 2450 ÷ 16

= 153.125

Hence, the standard error is 153.125

7 0
3 years ago
Question 19
atroni [7]

Answer:

When Jon determined A(12), it means he must have found the amount in the account after 12 years. i.e. the amount when t = 12 years.

Hence, option (A) is true.

Step-by-step explanation:

<u><em>BACKGROUND KNOWLEDGE ABOUT EXPONENTIAL GROWTH</em></u>

We know that an exponential increase in Math can be termed as the rapid increase of an amount by percentage over a certain period of time.

It can be expressed using the formula

y = a (1+b)ˣ

here

y represents the final amount

a represents the original amount

b represents the growth factor

x represents the time that has passed

Now, let is us map our problem because it indicates the same concept.

<em><u>SOLVING THE QUESTION</u></em>

Given the function

A\left(t\right)=2000\left(1+0.0412\right)^{12t}

Here

A(t) represents the final amount

2000 represents the original amount

0.0412 represents the growth rate

t represents the number of years

Thus,

When Jon determined A(12), it means he must have found the amount in the account after 12 years. i.e. the amount when t = 12 years.

Hence, option (A) is true.

8 0
2 years ago
The ratio of boys to girls at the beach cleanup was 7:8. If there were 42 boys, how many girls were there?
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It would be 48 girls. 42 divided by 7 equals 6 so then you just times 6 by 8 to figure out how many girls there will be.

7 0
3 years ago
a meter is a unit of length approximately equal to 39.37 inches. if someone is 1.98 meters tall what is their approximate height
galina1969 [7]
78 inches is the correct answer.

5 0
3 years ago
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