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3 years ago

Given: x + 2y = -6.

Mathematics

1 answer:

wel3 years ago

4 0

very positive about these results

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Jordan is cutting a 2 meter by 1 1/4 meter piece of rectangular paper into two pieces along its diagonal. what is the area of ea

MariettaO [177]

Each piece will have an area which is 1/2 of the area of the rectangle. The diagonal cuts the rectangle in half.

= 1/2 ( 2 * 1/1/4)

= 1 1/4 m^2

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3 years ago

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Round off 4095 nearest hundreds

ivolga24 [154]

Answer:

4100

Step-by-step explanation:

Rounding means making a number simpler but keeping its value close to what it was. Visual image below of showing different places to round. Given to make rounding's more clear and easier for you.

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2 years ago

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Does anyone know the equation to this graph

Dmitrij [34]

Y X
(1,3)
The y goes down once and x goes across 3 times

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4 years ago

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Use the completing the square method to find the roots of 2x^2+3x-15=13 include the steps, it would be greatly appreciated thank

Monica [59]

Answer:

The roots are

$x1= \frac{-3+\sqrt{233}}{4}$

$x2= \frac{-3-\sqrt{233}}{4}$

Step-by-step explanation:

we have

$2x^{2}+3x-15=13$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$2x^{2}+3x=13+15$

$2x^{2}+3x=28$

Factor the leading coefficient

$2(x^{2}+(3/2)x)=28$

Complete the square. Remember to balance the equation by adding the same constants to each side

$2(x^{2}+(3/2)x+(9/16))=28+(9/8)$

$2(x^{2}+(3/2)x+(9/16))=233/8$

$(x^{2}+(3/2)x+(9/16))=233/16$

Rewrite as perfect squares

$(x+(3/4))^{2}=233/16$

square root both sides

$(x+\frac{3}{4})=(+/-)\sqrt{\frac{233}{16}}\\ \\(x+\frac{3}{4})=(+/-)\frac{\sqrt{233}}{4}\\ \\x= -\frac{3}{4}(+/-)\frac{\sqrt{233}}{4}$

$x1= -\frac{3}{4}(+)\frac{\sqrt{233}}{4}=\frac{-3+\sqrt{233}}{4}$

$x2= -\frac{3}{4}(-)\frac{\sqrt{233}}{4}=\frac{-3-\sqrt{233}}{4}$

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3 years ago

Two angles of traingle is 40° and 60° . find the measurement of the third angle

allochka39001 [22]

Answer:

80 degrees

Step-by-step explanation:

the angles in a triangle all add up to 180 degrees

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3 years ago