3 years ago

15. 19 - (12 – 6k) = 14 + 7k

Mathematics

1 answer:

DIA [1.3K]3 years ago

5 0

Step-by-step explanation:

19 -12+6k=14+7k

7+6k=14+7k

-6k -6k

7=14+x

-14 -14

-7=x

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<img src="https://tex.z-dn.net/?f=%5Cleft%28%5Csqrt%7B2%7D%2B1%5Cright%29%5Cleft%285%2B%5Csqrt%7B2%7D%5Cright%29" id="TexFormula

dsp73

<h3>Solution:</h3>

$( \sqrt{2} + 1)(5 + \sqrt{2}) \\ = \sqrt{2} (5 + \sqrt{2} ) + 1(5 + \sqrt{2} ) \\ = 5 \sqrt{2} + 2 + 5 + \sqrt{2} \\ = 7 + 6 \sqrt{2}$

<h3>Answer:</h3>

7 + 6√2

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3 years ago

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Cindy takes a sheet of paper and cuts from one corner to the opposite corner, making two triangles. If the piece of paper is 5 i

Westkost [7]

Answer:

Perimeter of one of the triangle= $17.071 inch$

Step-by-step explanation:

The triangle has:

$Perpendicular= 5 inch\\Base = 5 inch \\Diagonal(Hypotenuse)=?$

Using the Pythagorean Theorem;

$( Hypotenuse)^2=(Perpendicular)^2+(Base)^2\\H^2= 5^2+5^2\\H^2=25+25\\H^2=50\\$

$H=\sqrt{50}\\or\\H=7.071 inches$

The Perimeter of one of the triangle is =

$Perpendicular+Base+Hypotenuse\\5+5+7.071\\17.071inch$

This is equal for the other triangle.

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3 years ago

Do the sides 11 cm, 20 cm, and 4 cm make a triangle? *

just olya [345]

Answer:

No, the two sum of the two shorter sides of a triangle must be greater that the longer side.

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3 years ago

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The point-slope equation of a line is....? HELP ME

Kay [80]

Y-y1=m(x-x1) she kdhkshs jshdkhd

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3 years ago

What's 3 –(-4)^2 +(-6)

svetoff [14.1K]

-19 should be the answer

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4 years ago