3 years ago

Find an area of a circle

Mathematics

1 answer:

FrozenT [24]3 years ago

7 0

The area of a circle is pi times the radius squared (A = π r²).

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Hi! Can someone please help me, I would appreciate it!

bonufazy [111]

Answer:

x5-2x3+2x2-8x+4

Step-by-step explanation:

multiplying them we get

x5-4x3+2x2+2x3-8x+4

= x5-2x3+2x2-8x+4

if my answer helps please mark as brainliest.

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3 years ago

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DanielleElmas [232]

-5/8n= -0.4
Divde both sides by -5/8
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3 years ago

Which numbers are greater than 3x10^-7

USPshnik [31]

3x10^-7 = 3 / (10^7) = 3 / 10000000 = 0.0000003;
A number greater then 0.0000003 is 1.

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3 years ago

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Afina-wow [57]

Answer:

$\large \boxed{\textbf{30.54 yr}}$

Step-by-step explanation:

For species A,

$P =2000e^{0.05t}$

For species B,

$P =5000e^{0.02t}$

When their populations are equal,

$\begin{array}{rcl}2000e^{0.05t} & = & 5000e^{0.02t}\\e^{0.05t} & = & 2.5e^{0.02t}\\0.05t & = & \ln2.5 + 0.02t\\0.05t & = & 0.9163 + 0.02t\\0.03t & = & 0.9163\\t& = & \dfrac{0.9163}{0.03}\\\\& = & \mathbf{30.54}\\\end{array}\\\text{The populations of species A and B will be the same in $\large \boxed{\textbf{30.54 yr}}$}$

The diagram below shows the population of Species A overtaking that of Species B in about 30.5 yr.

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3 years ago

Find an area of a circle​

Find an area of a circle