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d1i1m1o1n [39]
3 years ago
8

Which of the following expressions correctly uses the properties of summations to represent

Mathematics
1 answer:
ss7ja [257]3 years ago
7 0
Answer choice D is correct
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Please help me or i will fail
dusya [7]
Find area of square: 7^2 = 49

Find radius of circle: 7/2=3.5

find area of circle: 3.5^2*3.14=38.465

Remove area of circle from area of square:
49-38.465=10.535 cm^2

Answer A is the correct one :)
4 0
3 years ago
F(x) = Vx+3 -5<br> i need help figuring out the y coordinates for the table of this problem
bonufazy [111]

Answer:

I think the answer is f' (x)=v

5 0
3 years ago
Can someone help me :
morpeh [17]
E is the answer I am pretty sure.
4 0
2 years ago
2. (8 points) If you have n gold coins with one a fake that you know is slightly lighter, how many weighings on the pan balance
pogonyaev

Answer:

Only 1 Time

Step-by-step explanation:

Since you know that one coin is fake and that the coin is lighter than the rest , then you would only need to weigh all the coins together 1 time to ensure that you will find the fake coin. We can determine this by doing the following.

<u>Example:</u>

Lets say we have 100 coins that weigh 1 gr each. Meaning that the total weight of the 100 coins would be (100coins*1gr = 100gr) <em><u>IF</u></em> there are no fake coins in the batch.

Knowing this we can weigh the entire batch 1 time and if the total weight is less than 100gr we know that the fake coin is in that batch.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

5 0
3 years ago
Help please !!!!!!!!!
madam [21]

Answer:

a=200;110;101andb=decreasing

Step-by-step explanation:

a.(100×10+1000)/10=200

(100×100+1000)/100=110

(100×1000+1000)/1000=101

8 0
3 years ago
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