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MArishka [77]
2 years ago
11

PLEASE HELP 30 POINTS

Mathematics
1 answer:
romanna [79]2 years ago
4 0

Answer:

B, B, C, and im not sure about the last one

Step-by-step explanation:

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What is the number of terms in this geometric series?<br> 1+2+4...+128
Stella [2.4K]
The answer is : a^2=1 x 2^n-1

To check if it’s correct

a^2= 1 x 2^2-1

a^2 = 1x 2
a^2 = 2

Hope this helps!



5 0
3 years ago
Positive fractions less than 1 ,with an interval of 1/8 between each pair of fractions
Ray Of Light [21]

Here are some that may help: 1/8, 2/8, 3/8, 4/8, 5/8, 6/8, 7/8

Have a great night! Hope this helped!

8 0
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The sequence 2, 3, 5, 6, 7, 10, 11, $\ldots$ contains all the positive integers from least to greatest that are neither squares
sergeinik [125]
The 400th term is 425.

There are floor(√400) = 20 squares in the range 1..400, so the 400th term will be at least 420. There are floor(∛420) = 7 cubes in the range 1..400, so the 400th term may be as high as 427. However, there are \lfloor\sqrt[6]{427}\rfloor=2 numbers that are both squares and cubes. Consequently, the 400th term will be 427-2 = 425.
7 0
3 years ago
The ratio table below shows the relationship between the weight of apples purchased and the total cost of the apples. Apple Cost
My name is Ann [436]

Answer:

8

Step-by-step explanation:

7 0
2 years ago
!!!!Please help!!! I am dying!!
stellarik [79]

Answer:

Therefore (x,y)=(3,7)

Step-by-step explanation:

put the second equation into the first

x+4=3x-2

x-3x=-2-4

-2x=-6

x=3

plug x=3 into the second equation

y=3+4=7

6 0
1 year ago
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