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Helen [10]
3 years ago
14

How do you find area of a circle

Mathematics
1 answer:
ELEN [110]3 years ago
4 0
A=pir2
Area equals pi(3.16…) times radius squared
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The graph below shows two different deer populations over the same ten year period.
arsen [322]

Answer: D. The red line demonstrates an exponential growth rate, because the growth rate for the deer population is itself continuously increasing​.

Step-by-step explanation:

An exponential growth rate is one where the population in question is growing at a rate that continues to increase instead of remaining stable. That is, the growth rate itself grows.

The blue line does not show an exponential growth rate because the growth rate is stable per year. This is unlike the red line which grows at a rate that is increasing such that by the 4th year it's numbers cannot even be shown on the graph any longer.

6 0
3 years ago
Read 2 more answers
Which revolution will generate this hemisphere?
andrey2020 [161]

Answer:

Rotate a semicircle 180° about its diameter

Step-by-step explanation:

For common figures, the shape of a figure that revolves about a line which is at the base of the figure to give a 3 dimensional shape is the shape of the cross section of the 3 dimensional figure when the angle of revolution is 180° and half the shape of the cross section of the formed 3 dimensional figure, when the angle of revolution is 360°

The cross section of an hemisphere is a semicircle, therefore, the shape of an hemisphere is formed by rotating a semicircle 180° about the diameter (which is the straight line at the "base") of the semicircle

Therefore;

The correct option that gives the revolution that will generate the hemisphere is;

Rotate a semicircle 180° about its diameter.

5 0
3 years ago
Find the domain of (x,y) → (x + 7, y - 9) with R = {(-3, -14)​
MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

x+7=-3

x=-3-7=-10

x=-10

y-9=-14

y=-14+9

y=-5

Domain of (x,y)=(-10,-5)

4 0
3 years ago
A toy airplane climbs 30 vertical feet while traveling 50 feet horizontally. A toy helicopter climbs 20 feet while traveling 40
PilotLPTM [1.2K]

Answer:

Slope is the change in y over the change in x. The toy airplane would then have a slope of 3/5 and the toy helicopter would have a slope of 1/2. As 3/5 is greater than 1/2, the toy airplane would have a greater slope.

Hope this helps!

Step-by-step explanation:

Mark me as brainliest pls :)

8 0
3 years ago
Read 2 more answers
Which operations involving complex numbers have solutions represented by point A on the graph? PLEASE HELP
Alina [70]

Answer:

Option 3 and 4

Step-by-step explanation:

We have to find the solutions represented by point A on graph

The point A is represented by (-6,7i)

Lets check all options one by one

1.

2(1-2i)-(4+3i)\\= (2-4i)-(4+3i)\\=2-4i-4-3i\\=2-4-4i-3i\\=-2-7i

This option is not correct

2.

2(1+2i)+(-4-3i)\\=(2+4i)-4-3i\\=2+4i-4-3i\\=2-4+4i-3i\\=-2+i

This option is also not correct

3.

2(-1+2i)-(4-3i)\\=(-2+4i)-4+3i\\=-2+4i-4+3i\\=-2-4+4i+3i\\=-6+7i

This solution is same as point A so this option is correct

4.

(-2+4i)+(-4+3i)\\=-2+4i-4+3i\\=-2-4+4i+3i\\=-6+7i

Solution same as point A so this is correct option.

5.

(-2-4i)+(4-3i)\\=-2-4i+4-3i\\=-2+4-4i-3i\\=2-7i

Not correct

The correct options are option no 3 and 4 ..

7 0
4 years ago
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