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3 years ago

What is the answer to #30 and #31

Mathematics

1 answer:

svetoff [14.1K]3 years ago

5 0

Answer:

30) A) 0 / 15 = 0

31) A) 0/28 = 0

Step-by-step explanation:

30)

0 / 15 = 0

15/0 undefined

15 + 0 = 15

15 - 0 = 15

Answer:

0 / 15 = 0

31) Answer: A) 0/28 = 0

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7. Solve the equation using the quadratic formula.<br> 3x^2 = 2(2x+1)

suter [353]

Answer:

$\rm x = \dfrac{2+\sqrt{10}}{3},\dfrac{2-\sqrt{10}}{3}$

Step-by-step explanation:

A quadratic equation is given to us and we need to solve the equation using the quadratic formula . The given equation is ,

$\rm\implies 3x^2=2(2x+1)$

Open the brackets in RHS ,

$\rm\implies 3x^2= 4x + 2$

Transpose all the terms to LHS ,

$\rm\implies 3x^2-4x-2=0$

The general form of a quadratic equation is ax² + bx + c = 0 , and the roots of the equation by the Quadratic Formula ( Shreedhacharya's Formula ) is given by ,

$\rm\implies\red{ x =\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}}$

Using the quadratic formula , we have ,

$\rm\implies x =\dfrac{-(-4) \pm \sqrt{(-4)^2-4(3)(-2) }}{2(3)}$

Simplify ,

$\rm\implies x =\dfrac{4 \pm \sqrt{16+24 }}{6}$

$\rm\implies x = \dfrac{4\pm \sqrt{40}}{6}$

$\rm\implies x =\dfrac{4\pm 2\sqrt{10}}{6}$

$\rm\implies\boxed{\pink{\frak{ x = \dfrac{2+\sqrt{10}}{3},\dfrac{2-\sqrt{10}}{3}}}}$

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2 years ago

MAX is equiangular If m

Evgen [1.6K]

What’s the question?

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3 years ago

I need this by tonight for school

AlexFokin [52]

8.5, 8/5, 17/25, 82%

because u make them all decimals by dividing them and then do it greatest to least. i’m not totaley sure the order is correct but in decimal form 8.5 = 8.5 bc u don’t have to change it 8/5 = 1.6 and 17/25 = .68 and 82% = .82

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2 years ago

Read 2 more answers

Solve in(5x+7)=8 round to the nearest thousandth

Ivan

Answer:

$x=\frac{1}{5}$