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maksim [4K]
3 years ago
7

21 points... select more than one theres at least 3 i assume from the last one i did (but got wrong) thanks!!

Mathematics
1 answer:
8_murik_8 [283]3 years ago
4 0

Answer:

I don't see a picture

Step-by-step explanation:


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What is the sum of the geometric series 2^0 + 2^1 + 2^2 + 2^3 + 2^3 + 2^4 + … + 2^9?
GREYUIT [131]
Sum is
S_{n}=\frac{a_{1}(1-r^{n})}{1-r}

r=common ratio
a1=first term
it looks like 2^0=1 is the first term aka a1
it goes to the 9th term (2^9)

sub
S_{9}=\frac{1(1-(2)^{9})}{1-2}
S_{9}=\frac{1-512}{-1}
S_{9}=\frac{-511}{-1}
S_{9}=511

4 0
3 years ago
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6. Find the value of x in the triangle below.
Kobotan [32]

Answer:

The value of x is 21.

Step-by-step explanation:

Since this is a right angle triangle, you can apply Pythagoras theorem, side² + side² = hypo² :

(x + 3)² + 10² = (x + 5)²

x² + 6x + 9 + 100 = x² + 10x + 25

x² + 6x + 109 - x² - 10x - 25 = 0

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4x = 84

x = 84 ÷ 4

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4 0
3 years ago
6:15:21 in its simplest form
Readme [11.4K]

6:15:21

6:15:21= 2:5:7

<em>(when divided by 3)</em>

7 0
3 years ago
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Could i please get some help?
stepladder [879]
1: slope = 2/1 or 2
2: slope = 5/-5
3: slope = 3/2
4: slope = 7/-4
5: slope = 3/5
6: slope = 2/-8
7: slope = 6/2 or 3
8: slope = 2/-4
9: slope = 1/6
7 0
3 years ago
Help me! ELENA HAS 6 YARDS OF RIBBON IT TAKES 1/4 YARD OF RIBBON TO MAKE A BOW HOW MANY BOWS CAN SHE MAKE WITH THE RIBBON THAT S
astraxan [27]

Answer:

24 bows

Step-by-step explanation:

5 0
3 years ago
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