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juin [17]
3 years ago
11

You are skiing down a hill with an altitude

Mathematics
1 answer:
Yuki888 [10]3 years ago
4 0

Answer:

x= 40

Step-by-step explanation:

award me

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Can some one please do this? thank you !
jenyasd209 [6]

Answer:

Step-by-step explanation:

6)a)

5\sqrt{27}=5\sqrt{3*3*3}\\\\ =5*3\sqrt{3}\\\\ =15\sqrt{3}

7a) y² - 5y - 14 =  y² -7y +2y - 2*7

                       = y*(y - 7) + 2*(y - 7)

                        =(y - 7)(y + 2)

b) Use FOIL method

(2\sqrt{5}+1)(3\sqrt{5}-1)=(2\sqrt{5}*3\sqrt{5})-((2\sqrt{5}*1)+1*3\sqrt{5})-1*1\\\\ =6*5-2\sqrt{5}+3\sqrt{5}-1\\\\  =30+(-2+3)\sqrt{5}-1\\ \\=29+\sqrt{5}

c) Rationalize the denominator by multiplying the denominator and numerator by √12

\frac{6}{\sqrt{12}}=\frac{6*\sqrt{12}}{\sqrt{12}*\sqrt{12}}\\\\=\frac{6\sqrt{2*2*3}}{12}\\\\=\frac{6*2\sqrt{3}}{12}\\\\=\frac{12\sqrt{3}}{12}\\\\=\sqrt{3}

8 0
3 years ago
what is the molariry of a solution that contains 1.22 mol of hydrogen chloride if the total volume of the solution is 1,251 mL?
hichkok12 [17]

Your molarity would be 0.975 M HCl because it’s moles of solute divided by liters of solvent

7 0
4 years ago
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Number 9 and 10 plz
guapka [62]
9) y = 2x + 5

10) The y-intercept is always the constant term (without x). Therefore, the y-int is -9. The slope is always the term in front of the x, and so it is 3. 
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3 years ago
A rectangle has a length of 3.6in and perimeter of 16.8 inches.What is the width of the rectangle?
sergij07 [2.7K]
Perimeter = 2(length + width)
16.8 = 2(3.6 + width)
3.6 + width = 16.8/2 = 8.4
width = 8.4 - 3.6 = 4.8 in
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3 years ago
Which lines rhyme?
sweet [91]

<em>Answer: I'm sorry. Your question does not provide enough information for me to answer it.</em>

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3 years ago
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