3 years ago

14. The equation having 4 as a root is :

Mathematics

1 answer:

White raven [17]3 years ago

3 0

I think it’s 2x + 1 = -7

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50 points! Please help asap! Write the equation of the perpendicular bisector of the line AB given endpoints A(3,-3) and B(1,-1)

Elza [17]

Answer:

y = x - 4

Step-by-step explanation:

Given AB with coordinates A(3, -3) and B(1, -1)

Perpendicular bisector passes through midpoint of the segment.

Midpoint of AB has coordinates:

x = (3 + 1)/2 = 2, y = (-3 - 1)/2 = -2

Slope of AB

m = (-1 + 3)/(1 - 3) = 2/-2 = -1

Slope of the perpendicular line is:

-1/m = -1/-1 = 1

The equation of the line in point-slope form:

y - y₁ = m(x - x₁), where m = 1, x₁ = 2, y₁ = -2
y - (-2) = 1(x - 2) ⇒ y + 2 = x - 2

Converted into slope-intercept form:

y = x - 4

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3 years ago

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lesantik [10]

Answer:

Step-by-step explanation:

To find the area of a semicircle the formula is

$\frac{\pi r^2}{2} \\=\frac{\pi 1^2}{2} \\=6.283m^2$

The square

$A=a^2=2^2=4m^2\\6.283+4=10.283m^2$

$A=wl=7*9=63m^2$ (rectangle)

$A=\frac{ab}{2} =\frac{6*4.5}{2} =13.5m^2\\63+13.5=76.5m^2$ (triangle)

5 0

4 years ago

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Simplify 1/2+2/3-1/4

avanturin [10]

Answer:

11/12

Step-by-step explanation:

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3 years ago

What is 469019 nearest 100

expeople1 [14]

It would be 469,000... no?

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Ben has a rectangular area 9 meters long and 6 meters wide. He wants a fence that will go around it as well as grass sod to cove

Blababa [14]

the formula for perimeter is l+l+w+w

So 9+9+6+6= 30 meters of fence

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3 years ago

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