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Vinvika [58]
3 years ago
15

Identify the center and radius of the circle (x+4)^2+(y-2)^2=16

Mathematics
1 answer:
fgiga [73]3 years ago
7 0

Answer: center is (-4,2) radius is 4

Step-by-step explanation:

Equation of circle

is (X-A)^2+(X-B)^2=r^2

The center Of The circle is (A, B)

The radius Of The circle is r

Comparing the given equation and the equation of a circle we get the center Of The circle as (-4,2) and then radius as 4

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The mass of the moon is 7.36*10^25 grams to the nearest tenth how many moons would it take to equal the mass of earth
trapecia [35]

Nearly 81 moons will be required to equate the mass of moon to the mass of earth.

Step-by-step explanation:

Mass of earth is 5.972*10^24 kg.  

Mass of the moon is 7.36*10^25 g = 7.36*10^22 kg

As mass of the Earth is given as 5.972 * 10^24 kg and mass of the moon is given as 7.36 * 10^22 kg, then the number of moons required to make it equal to the mass of earth can be calculated by taking the ratio of mass of earth to moon.

 Mass of Earth = Number of moons * Mass of Moon

Number of Moons = Mass of Earth/Mass of moon

Number of moons = 5.972 * 10^24/7.36*10^22= 81 moons.

So nearly 81 moons will be required to equate the mass of moon to the mass of earth.

6 0
4 years ago
This equation will be in standard form if you subtract 2x2 from both sides and subtract 8x from both sides.
Lady_Fox [76]

i looked it up and it is false

6 0
3 years ago
Read 2 more answers
Please help me with this math problem
elena55 [62]

When a tangent line (13.5 cm) and a secant (lines x + 8.45 cm) intersect then:


tangent line^2 = 8.45 * (8.45 + x)


13.5^2 = 71.4025 + 8.45 x


182.25 -71.4025 = 8.45x


8.45 x = 110.8475


x = 13.1180473373


x = 13.1 (rounded)


Source:

1728.com/circangl.htm




4 0
3 years ago
The profits for selling T-shirts at the school store is $40 for every 10 shirts. Write an equation and graph the relationship ​
Deffense [45]

Answer:

 i think this is what your looking for

Step-by-step explanation:

the relationship is that they always go up by 40

4 0
2 years ago
A spinner with seven equal-sized sections was used to play a game.
Amiraneli [1.4K]

Answer:

cool

Step-by-step explanation:

do you need the fractions

1/7,2/7,3/7,4/7,5/7,6/7,1 or 7/7

7 0
3 years ago
Read 2 more answers
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