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tino4ka555 [31]
2 years ago
12

What is the area of the composite figure shown.

Mathematics
1 answer:
AlekseyPX2 years ago
6 0
I have 0 idea but I need help with some questions that I have
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Hello i need help with this question
scoundrel [369]

Answer:

4pf

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Express in the simplest form 777:147​
Dvinal [7]

Answer:

your answer should be 37:7

Try to reduce the ratio further with the greatest common factor (GCF).

The GCF of 777 and 147 is 21

Divide both terms by the GCF, 21:

777 ÷ 21 = 37

147 ÷ 21 = 7

The ratio 777 : 147 can be reduced to lowest terms by dividing both terms by the GCF = 21 :

777 : 147 = 37 : 7

Therefore:

777 : 147 = 37 : 7

3 0
3 years ago
Read 2 more answers
Element X is a radioactive isotope such that every 51 years, its mass decreases by half. Given that the initial mass of a sample
pychu [463]

Answer: It will take 6 years for 7500 grams of X to reach 6900 grams.

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant  

a - x = amount left after decay process  

a) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

51=\frac{0.69}{k}

k=\frac{0.69}{51}=0.0135years^{-1}

b) for  7500 g to reach to 6900 g

t=\frac{2.303}{0.0135}\log\frac{7500}{6900}

t=6years

It will take 6 years for 7500 grams of X to reach 6900 grams.

5 0
2 years ago
I really need help with this question <br> n+5≤16
ahrayia [7]

Answer:

the answer would be anything 11 and under (11,10,9,8,7,6,5,4,3,2,1,0)

Step-by-step explanation:

This is because if n+5 is less than or equal to 16 then 11+5=16 so that is equal to and less than would be using any number less than 11

hope this helps ;)

3 0
2 years ago
Read 2 more answers
It cost Evan $17.70 to send 177 text messages. How many text messages did he send if he spent $19.10?​
rusak2 [61]

Answer:

191

Step-by-step explanation:

The amount spent for a single text:  177/17,7=0,1

x×0,1=19,1

x=19,1/0,1

x=191

6 0
2 years ago
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