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3 years ago

Write the equation of the line perpendicular to the line x - 3y = 9 and passing through the point (3,5).

1 answer:

5 0

Here is a sample problem
has to be perpendicular to y=(4/9)*x-2 and pass through 4,3,

y-b=m(x-a)
slope of -9/4 is perpendicular to slope of 4/9, as y=4/9x-2 has slope 4/9. Our point is (4,3) therefore.
y-3=-9/4*(x-4)
y-3=-9/4x+9
y=-9/4x+9+3
y=-9/4x+12

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B) The perimeter of the shape is 25.71 cm

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$r=4cm$

Step-by-step explanation:

Having the radius to be involved, the shape is a circle.

<u>Circumference formula </u>

$c=2\pi r$

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$r=\frac{25.72cm}{2\pi }$

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3 years ago

an octagon has sides that all have a length of y. Write a simplified algebraic expression for the perimeter of the octagon in te

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3 years ago

ABCD is a parallelogram. If a CDA - 57 then BCD-_?

Paha777 [63]

Answer:

Step-by-step explanation:

It is given in the question that length CDA = 57.

Since the shape is a parallelogram, then we know that length AD=BC and AB=CD.

CDA = CD + AD

BCD = BC + CD

Since BC=AD and CD=CD

BCD = BC + CD is the same as CD + AD = CDA

Therefore BCD is the same length as CDA = 57

In other words, CDA is made up of a long side and a short side = 57

BCD is also made up of a long side and a short side, and since the longs sides are equal to each other and the short sides are also equal to each other in a parallelogram, BCD is the same length as CDA = 57.

Hope this helped!

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3 years ago