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Liono4ka [1.6K]
3 years ago
7

Answer please thanks

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
3 0
The common denominator is (x+2)(x-2)
notice that x²-4 is the difference of two square
when you solve it you get (x+2)(x-2). (x+2) can go into (x+2)(x-2).

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Sasha hasn’t won any of the 40 games she has played with her four friends so far. She wants to win at least 20%. How many does s
Margaret [11]

Answer:

10

Step-by-step explanation:

Given that Sasha has won 0 games in the 40 games she has played.

Let she needs to win x game in a row, so

Total game she played = 40 + x

The number of the game she won is x, which is 20% of the total game she played, so

x = 20% of (40+x)

\Rightarrow x = 0.2(40+x) \\\\\Rightarrow x = 8+0.2x \\\\\Rightarrow x-0.2x=8 \\\\\Rightarrow 0.8x = 8 \\\\\Rightarrow x = 8/0.8=10.

Hence, she needs to win 10 games in a row.

7 0
3 years ago
Trig with a picture included
MakcuM [25]

Answer:

26,167 m

Step-by-step explanation:

Step 1: Find the other angle of the complementary set

90 - 17 = 73°

Step 2: Find the angle of elevation from the ship

180 - (73 + 90) = 17°

Step 3: Use tan∅ to find distance

tan17° = 8000/x

xtan17° = 8000

x = 8000/tan17°

x = 26166.8

5 0
4 years ago
Read 2 more answers
Your friend says that 14.5% is equivilent to 14.5
Darina [25.2K]
That statement is incorrect. When writing a percentage as a decimal, the decimal point goes before the tens place, like so: .145
3 0
3 years ago
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The sum of two numbers is 47. The greater number is 9 more than the smaller number. Which equation can be used to solve for the
GenaCL600 [577]

Answer:

x + (x + 9) = 47

Step-by-step explanation:

This equation can be used to solve for the smaller number.

4 0
3 years ago
Help.........................
Pani-rosa [81]

Answer:

50%

Step-by-step explanation:

72000-48000=24000

24000 is 50% of 48000

48000+24000=72000

It's 50%, im sorry if it's confusing

3 0
3 years ago
Read 2 more answers
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