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dimaraw [331]
3 years ago
6

The radius of the circle is 7cm. What is the area of the circle in cm2? Leave the answer in pi.

Mathematics
1 answer:
vredina [299]3 years ago
3 0
The answer is A.) 49 π
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Find the value of x.<br><br> Brainlest for anyone who answers and explains it!
sergejj [24]

Answer:

x=-2

Step-by-step explanation:

Since it is an equilateral triangle (note the little lines across the legs of corner 2) the other angle must be 69° as well.

That leaves 180-69-69 = 42 for ∠2.

So x + 44 = 42 => x = 42-44 = -2.

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What is the ful cost of a 59.99 game after adding taxes
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The correct answer would be 61.32
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Estimate 206,834 194,268
Darina [25.2K]
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HELP ME PLEASE!! Find R and theta with the coordinates (-3,7).
Fofino [41]

Answer:

Since r is the distance from the origin to (x,y), it is the magnitude r=√x2+y2. Alternatively, from the equation (1), one can calculate directly that x2+y2=r2cos2θ+r2sin2θ=r2(cos2θ+sin2θ)=r2.

Step-by-step explanation:

7 0
3 years ago
Which points are the approximate locations of the foci of the ellipse? Round to the nearest tenth. (−2.2, 4) and (8.2, 4) (−0.8,
Studentka2010 [4]

The graph is attached.

Answer:

(-2.2, 4) and (8.2, 4)

Step-by-step explanation:

In an ellipse, there is a minor radius and a major radius.

Let major radius be = a

Let minor radius be= b

From the graph, we are given:

Major radius, a = 6

Minor radius, b = 3

Now, let's find the distance from the center to the focus using the formula:

\sqrt{a^2 - b^2}

Substituting values, we have:

= \sqrt{6^2 - 3^2}

= \sqrt{36 - 9}

= \sqrt{27} = 5.916

≈ 5.2

We can see from the graph that center coordinate is (3, 4). Therefore, the approximate locations of the foci of the ellipse would be:

(3-5.2, 4) and (3+5.2, 4)

= (-2.2, 4) and (8.2, 4)

3 0
3 years ago
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