Geometry draw a quadrilateral with the verteices r(-3,-1), s(-1,0),t

Mathematics

1 answer:

agasfer [191]3 years ago

3 0

This is an incomplete problem

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Michael wants to plant a circular flower garden in his backyard. If the radius of his garden is 12.5 feet, what is the circumfer

MrRa [10]

12.5 x 2 (you need the diameter to find pi) =25pi ft

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3 years ago

If a person bikes 6 miles in 15 minutes, how far can she bike in 1.5 hours?

Natalka [10]

Answer:

$36\:miles$

Step-by-step explanation:

There is one-and-a-half hour in ninety minutes, so multiply 6 by 15 to get 90, then whatever is done to the bottom is also done to the top, so you square 6 to get 36.

I am joyous to assist you anytime.

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3 years ago

Find the gradient, picture below

hoa [83]

Answer:

$\frac{dy}{dx} = \frac{13}{8}$

Step-by-step explanation:

$y = 2x + 6 {x}^{ - \frac{1}{2} } \\ \frac{dy}{dx} = 2 + 6( - \frac{1}{2}) {x}^{ - \frac{1}{2} - 1 } \\ \frac{dy}{dx} = 2 - 3 {x}^{ - \frac{3}{2} } \\ \frac{dy}{dx} = 2 - \frac{3}{ \sqrt{ {x}^{3} } }$

When x = 4,

$\frac{dy}{dx} = 2 - \frac{3}{ \sqrt{ {4}^{3} } } \\ = \frac{13}{8}$

3 0

2 years ago

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The population of a city is growing at an average rate of 3% per year in 1990 the population was 45 000.

Nonamiya [84]

This is an exponential growth/decay problem...

F=Ir^t, F=final value, I=initial value, r=rate, t=time, in this case:

F=I(1.03)^t and they just want to know when F=2I so

2=1.03^t take natural log of both sides...

ln2=t*ln1.03

t=ln2/(ln1.03)

t≈23.45

So it will take approximately 23.45 years for the population to double..

1990+23.45=2013.45

So during the year of 2013 the population will have double from its 1990 level.

5 0

3 years ago

Help me guyssss pleaseee

matrenka [14]

Answer:

Step-by-step explanation:

trust me i used to this all the time

3 0

3 years ago