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mote1985 [20]
3 years ago
11

Find a circle has center at (0-4) and radius 2

Mathematics
1 answer:
Pepsi [2]3 years ago
6 0
\bf (x-{{ h}})^2+(y-{{ k}})^2={{ r}}^2
\qquad center\ ({{ h}},{{ k}})\qquad
radius={{ r}}

that's the equation for a circle

plug in the given h,k and r values then
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What is the average (arithmetic mean) of the first 90 measurements in a certain list of 92 measurements? (1) the average of the
marishachu [46]
The sum of all the measurements is just the average times the number.

\bar x = \frac{1}{n} \sum_{i=1}^n x_i

\sum_{i=1}^n x_i = n \bar x

So if the average of all 92 is 7 the sum of those is 92 \times 7

The average of the last two is 7.2 so their sum is 2 \times 7.2

That means the sum of the first 90 is 92 \times 7 - 2 \times 7.2

so the average of the first 90 is

 \dfrac{92 \times 7 - 2 \times 7.2}{90} = 6.99556 cm



7 0
3 years ago
Which angles equal 91°? angles T and V angles S and U angles U and V angles S and T.
Ahat [919]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Can somebody help me asap.
ehidna [41]

Answer:

Step-by-step explanation:

1) m∠1 +m∠2 + m∠3 = m∠LAM (Angle addition postulate)

2) m∠1 + m∠2 + m∠3 = 180 (def. of straight angle)

3) y║z (Given)

4) ∠1 ≅ ∠5 (alternate interior angles theorem)

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C=[?]cm<br> Find c round to the nearest tenth
frosja888 [35]

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56.3cm

Step-by-step explanation:

Check attachment

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What is the circumference of this circle? Use π ≈ 3.14. Round your answer to the nearest tenth of a centimeter.
nadezda [96]
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R times 2 then multiply the product with 3.14
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