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3 years ago

2over7 wat would be it's improper fraction

1 answer:

5 0

In order for it to be an improper fraction there has to be a larger number on the numerator. For instance 17/8 is improper

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Which equation represents a line that passes through the two points in the

umka21 [38]

b is the right answer i think

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3 years ago

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How to solve 4n²-3n-7=0

almond37 [142]

$4n^2-3n-7=0\\ \\ a=4, \ \ b=-3 \ \ c=-7\\ \\ \Delta = b^{2}-4ac = (-3)^{2}-4*4* (-7)= 9+112=121$

$x_{1}=\frac{-b-\sqrt{\Delta }}{2a} =\frac{ 3-\sqrt{ 121}}{2*4}=\frac{ 3-11}{8}= \frac{-8 }{ 8}=-1 \\ \\x_{2}=\frac{-b+\sqrt{\Delta }}{2a} =\frac{ 3+\sqrt{ 121}}{2*4}=\frac{ 3+11}{8}= \frac{14 }{ 8}= \frac{7}{4}=1\frac{3}{4}$

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3 years ago

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HELP URGENT BRAINLIEST

nadya68 [22]

Given:

LMN is an equilateral triangle.

LM = LN = MN = 12 cm

To find:

The height of the triangle h.

Solution:

In a right angle triangle,

$\sin \theta=\dfrac{Opposite}{Hypotenuse}$

$\sin (60^\circ)=\dfrac{h}{12}$

$\dfrac{\sqrt{3}}{2}=\dfrac{h}{12}$

Multiply both sides by 12.

$\dfrac{\sqrt{3}}{2}\times 12=\dfrac{h}{12}\times 12$

$6\sqrt{3}=h$

Therefore, the height of the triangle is $6\sqrt{3}$ cm.

3 0

3 years ago

Can someone help me on #1,3,5,7?

DaniilM [7]

Answer:

duno

Step-by-step explanation:

duno duno

7 0

3 years ago

What 2 numbers equals the sum of 42 and the quotient of 3

Shalnov [3]

$x+y=42 \\ \frac{x}{y} =3$

$y=-x+42 \\ \frac{x}{-x+42} =3 \\ x=3(-x+42)\\ x=-3x+126\\4x=126\\x= \frac{126}{4} \\x=31.5$

$x+y=42 \\ 31.5+y=42\\ y=42-31.5\\y=10.5$

The numbers are 31.5 and 10.5

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3 years ago

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