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Stels [109]
3 years ago
11

Please help. thank you​

Mathematics
1 answer:
jenyasd209 [6]3 years ago
8 0

Answer:

52.765

Step-by-step explanation:

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Factor then solve.<br>1.81 - 4x²=0<br>2. 4s² + 9 = 12s
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1.\\81-4x^2=0\\\\9^2-(2x)^2=0\\\\(9-2x)(9+2x)=0\iff9-2x=0\ \vee\ 9+2x=0\\\\-2x=-9\ \vee\ 2x=-9\\\\x=4.5\ \vee\ x=-4.5

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2.\\4s^2+9=12s\\\\4s^2-12s+9=0\\\\(2s)^2-2\cdot2s\cdot3+3^2=0\\\\(2s-3)^2=0\\\\(2s-3)(2s-3)=0\iff2s-3=0\\\\2s=3\\\\s=1.5
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Identify the algebraic expression for the following: the quotient of 12 and a number y increased by 7
Goshia [24]

The algebraic expression for the given word problem is 12/y + 7

<h3>Writing an expression</h3>

From the question, we are to write the algebraic expression for the given word problem

The given word problem is

"the quotient of 12 and a number y increased by 7"

First,

"the quotient of 12 and a number y" can be expressed as

12/y

Then,

"the quotient of 12 and a number y increased by 7" becomes

12/y + 7

Hence, the algebraic expression for the given word problem is 12/y + 7

Learn more on Writing an expression here: brainly.com/question/4541471

#SPJ1

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Which of the following is a solution to the linear function y = 4/5x+7
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cestrela7 [59]

\\ \sf\longmapsto cosV=\dfrac{Base}{Hypotenuse}

\\ \sf\longmapsto cosV=\dfrac{UV}{VT}

  • Put the values

\\ \sf\longmapsto cosV=\dfrac{28}{53}

\\ \sf\longmapsto cosV=0.528

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3 years ago
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