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Andrej [43]
3 years ago
10

Circle A has area 500 in2. The diameter of circle B is three times the diameter of circle A. Estimate the area of circle B.

Mathematics
2 answers:
stich3 [128]3 years ago
7 0

Answer:

456.5

Step-by-step explanation:

VladimirAG [237]3 years ago
3 0

Answer:

why was this question up for so long

Step-by-step explanation:

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Ind the equation of the tangent line to 9x^2+16y^2=52 through (2, -1)
EastWind [94]
Here are the steps.

In order to get the answer, first we need to get the x and y value of the center of the circle by using the equation of a circle (x^2 + y^2 = r^2)

<span>The center is (-9, -4)</span>

Once you get the center point, find the equation of the line (in a form of a radius) from the center point to point (2, -1). Get the slope.

The slope from center to point (2, -1) is 11/3

Finally, get the negative reciprocal of the slope from the previous step and form the equation using slope-intercept form ( y=mx + b). Then, that's the equation of the tangent line.

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The equation is y = -3/11x - 5/11

6 0
3 years ago
ASAP HELP!! PLEASEEEE!!
Ne4ueva [31]

Answer:

Step-by-step explanation:

5.1, please this is just a guess from using my head to calculate

8 0
2 years ago
Eliminate the bolded term y-10=30​
Rina8888 [55]

Answer:

y = 40

Step-by-step explanation:

y-10=30

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7 0
2 years ago
Read 2 more answers
Describe the two equations:<br> y=-3x + 2 and y = 2x - 3
tatuchka [14]

Answer:

(-4,2)

Step-by-step explanation:

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