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3 years ago

A rectangle has an area of 54 feet. What could be the dimensions of it?

Mathematics

1 answer:

andreev551 [17]3 years ago

8 0

It could 1 x 54, 2 x 27, 3 x 18, or 6 x 9

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Find the length and area of rectangle whose diagonal is =26cm and breath is =10cm

givi [52]

Answer:

240cm²

explanation

Diagonal ²=Length ²+breath ²

26²=10²+length ²

676=100+length ²

576=length ²

length=24cm

Area of a rectangle=length×breath

Area=24×10

=240cm²

3 0

3 years ago

If you had 78 years + 365 days gives you 443

Pavlova-9 [17]

365 days=1 year

$78+1=79$

Answer: 79 years

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3 years ago

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The gravitational force exerted by the planet Earth on a unit mass at a distance r from the center of the planet is:

jolli1 [7]

Answer:

Yes, F is a continuous function of r

Step-by-step explanation:

We are given that

When r<R

$F(r)=\frac{GMr}{R^3}$

$r\geq R$

$F(r)=\frac{GM}{r^2}$

Where M=Mass of the earth

R=Radius of earth

G=Gravitational constant

We have to find the function is continuous of r or not.

LHL

$\lim_{r\rightarrow R-}\frac{GMr}{R^3}=\frac{GMR}{R^3}=\frac{GM}{R^2}$

RHL

$\lim_{r\rightarrow R+}\frac{GM}{R^2}=\frac{GM}{R^2}$

$F(R)=\frac{GM}{R^2}$

When a function is continuous at x=a

Then, LHL=RHL=f(a)

RHL==LHL=F(R)

Hence, the function is continuous of r.

8 0

3 years ago

Pls pls, pls help me with my math

Neko [114]

Answer:

Obviously only D is true

Note 2 x - 1 < 10 can be rewritten

2 X < 11 and

x < 5.5

So all of the values in the set would have to be less than 5.5

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2 years ago

Understanding the _____ of what you read helps you understand why it is being presented in a certain way and how you can react t

Natalka [10]

Answer:

Author is the correct answer

Step-by-step explanation:

Hope you have a great day :)

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3 years ago

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