3 years ago

Find a(33) if the first term in the sequence is 3 and the common difference is -1.

Mathematics

1 answer:

anyanavicka [17]3 years ago

8 0

Answer:

Step-by-step explanation:

a(n) = a + (n-1)d

a(33) = 3 + (33-1)*(-1)

= 3 + 32*(-1)

= 3 - 32

= -29

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Step-by-step explanation:

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Mice21 [21]

Answer:

$(x-7)^2+y^2=1$

Step-by-step explanation:

Hi there!

Equation of a circle: $(x-h)^2+(y-k)^2=r^2$ where the circle is centered at (h,k) and the radius is r

<u>1) Plug in the given center (7,0)</u>

$(x-7)^2+(y-0)^2=r^2\\(x-7)^2+y^2=r^2$

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I hope this helps!

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3 years ago

What is the equation of the line that is perpendicular to 3x -6y =2 and contains the point (-2,--5)

julsineya [31]

Answer:

y=-2x-12

Step-by-step explanation:

first, putt 3x-6y=2 in standard form:

subtract 3x from both sides: -6y=-3x+2

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if the other line is perpendicular to this, you must find the slope by finding the opposite reciprocal of 1/2x: -2

now we have 2 points a slope, so we use the point-slope formula: y-y1=m(x-x1)

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Use the distributive property: y+2=-2x-10

subtract 2 for both sides to isolate y: y=-2x-12

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2 years ago