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Rom4ik [11]
3 years ago
7

Who wants to do frickin 8th grade Pythagorean theorem ixls? Ion feel like doing them-

Mathematics
2 answers:
kolezko [41]3 years ago
4 0
Answer: i’m down lol
Vesna [10]3 years ago
3 0
Yes I would like to do it
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A result of a number, what decreased by 15% equal 161. Find that number.
lukranit [14]

Answer: 189.41

Step-by-step explanation: Let’s take the number as n and if nx(100-15)/100=161 then 85n/100=161 and therefore n= 181.4117

I don’t know why the answer is in decimal as mostly it won’t be. Maybe you have made a mistake with the question so pls do check the question too!

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Solve problems <br>5 1/2×3 1/3​
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5 1/2 X 3 1/3=18 1/3
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In a scale model of a roller coaster, the highest hill has a height of 6 inches. If the actual height of the hill is 210 feet, w
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4 years ago
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Len wants to write the number 100,000 using a base of 10 and an exponent.what number should he use as the exponent?
Salsk061 [2.6K]
5. The easiest way to determine this is to count the number of zeroes, though this only works for base 10.
6 0
4 years ago
Which are the solutions of the quadratic equation x^2=-5x-3
frutty [35]
The correct answer would be \frac{-5 +/-  \sqrt{13} }{2}

In order to solve for this you must first get the equation equal to 0. 

<span>x^2=-5x-3 ----> add 5x to both sides. 
x^2 + 5x = -3 ----> add 3 to both sides.
x^2 + 5x + 3 = 0

Now knowing this we can use the coefficients of each one in descending order of power as a, b and c. 

a = 1 (because it is the coefficient to x^2)
b = 5</span> (because it is the coefficient to x)
c = 3 (because it is the end number)

Now we can plug these values into the quadratic equation. 

\frac{-b +/-  \sqrt{b^{2} - 4ac } }{2a}

\frac{-5 +/- \sqrt{5^{2} - 4(3)(1) } }{2(1)}

\frac{-5 +/- \sqrt{13} }{2}

And those would be your two answers.
5 0
3 years ago
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