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2 years ago

A rectangular room is 21 feet wide. It is

Mathematics

1 answer:

ELEN [110]2 years ago

5 0

Answer:

I think the answer is 7

Step-by-step explanation:

7 multipled my 3 equals 21.

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Svet_ta [14]

Answer:

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8 0

3 years ago

Bro i need help with this 8th grade math work

Zolol [24]

Answer:

look it up

Step-by-step explanation:

8 0

2 years ago

1-x-5x=8x-5<br> Show your work

nataly862011 [7]

Answer:

Step-by-step explanation:

its 13 calculator

4 0

3 years ago

Read 2 more answers

Find the missing term of the arithmetic sequence<br> 17,____,23

Kruka [31]

Answer:20

Step-by-step explanation:

17 + 3 = 20

20 + 3 = 23

8 0

3 years ago

Scientists found that a certain particle of dust doubles every 30 minutes. If the scientists tests this out with 21 grams of the

monitta

Answer: $1.663\times 10^{30}\ gm$

Step-by-step explanation:

Given

Population of dust particle doubles every 30 minutes

If the initial sample is 21 grams

The model to predict the population will be

$\Rightarrow P=21\cdot 2^{2t}$

Where t=time in hours

A day has 24 hours . So, for 2 days time is 48 hours

Population is given by

$\Rightarrow P=21\cdot 2^{2\times 48}\\\\\Rightarrow P=21\times 2^{96}\\\\\Rightarrow P=1.663\times 10^{30}\ gm$

7 0

3 years ago