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2 years ago

25 POINTS + BRAINLIEST

Mathematics

1 answer:

klio [65]2 years ago

4 0

Answer:

C: 181,440

Step-by-step explanation:

P(n,r)=P(9,7)

=9!(9−7)!

= 181440

-lukelaws

Hope I helped if I did please mark me brainliest!

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How do you find the circumference of a circle? What is the formula?

victus00 [196]

Answer:

$\pi r2$ or $\pi d$

Step-by-step explanation:

To find the circumference, you must first find either the diameter or the radius.

To find the diameter, you can multiply the radius twice.

To find the radius, you can divide the diameter by 2.

Once you have the diameter, you then multiply it by pi, also known as 3.14.

Once you have the radius, you them multiply it by pi, also known as 3.14, and then multiply your product by 2.

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3 years ago

Find a ⋅ b. a = <5, 2>, b = <4, 5>

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Answer:

Step-by-step explanation:

For a = <xa, ya> and b = <xb, yb>, the dot product is the sum of products ...

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Some graphing calculators can do such math. There are also dot product calculators available on the Internet. If you have quite a few of these to calculate, you can put the appropriate formula into a spreadsheet.

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3 years ago

Suppose the operators 1,2,3,4 on ℝ^2 are given by

andrew11 [14]

Answer:

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Step-by-step explanation:

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Linear Transformation

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2 years ago

Consider the following differential equation. (A computer algebra system is recommended.) (1 + t2)y' + 4ty = (1 + t2)−2 (a) Draw

alina1380 [7]

Answer:

Step-by-step explanation:

a. Draw a direction field for the given differential equation

b. Based on the inspection of the direction field, describe ow solutions behave for large t.

The solution appear oscillatory

All solutions seems to converge to the function y0(t)=4

All solutions seems to converge to the function y0(t)=0

All solutions seems to seems to eventually have negative slopes a and hence decrease without bound

All solutions seems to seems to eventually have positive slopes a and hence increase without bound

As t-infinity

All solutions seems to seems to eventually have positive slopes a and hence decrease without bound

All solutions seems to converge to the function y0(t)=0

All solutions seems to seems to eventually have negative slopes a and hence decrease without bound

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3 years ago

James multiplies 38 by 55. He finds three of the four partial products: 40, 150, and

jeka94

Answer:

He is missing 1500, the final solution would be 2090

Step-by-step explanation:

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3 years ago