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3 years ago

If the scale factor of figure A to figure B is 4:5, find the perimeter of figure A.

Mathematics

1 answer:

Zolol [24]3 years ago

4 0

Answer:

Base of figure A = 12 units

Step-by-step explanation:

Given:

Base of figure B = 15 units

Ratio of figure A to figure B = 4:5

Find:

Value of X

Computation:

X / 15 = 4 / 5

x = 4(15) / 5

x = 12

Base of figure A = 12 units

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The pilot of a Coast Guard patrol aircraft on a search mission had just spotted a disabled fishing trawler and decided to go in

Svetllana [295]

Answer:

$\frac{dD}{dt}= 181\frac{168}{1600}$

Step-by-step explanation:

h= 1000 ft

dx/dt= 232 ft/sec

D= 1600 ft

First, we have to find a distance x ( shown in the figure)

applying pythagorus theorem

D^2= h^2+x^2................1

x^2= D^2-h^2

= 1600^2-1000^2

x^2= 1560000

x=1248.99 m

Now we can find out how fast the aircraft is receding from the trawler

( notice that the height is not changing)

so differentiating equation 1 w.r.t t we get

$\frac{d}{dt} (D^2)= \frac{d}{dt}(h^2+x^2)$

2DD'= 2hh'+2xx'

$D\frac{dD}{dt}= h\frac{dh}{dt}+x\frac{dx}{dt}$

now putting values we get

$1600\frac{dD}{dt}= 1000\times0+232\times1249$

$\frac{dD}{dt}= 181\frac{168}{1600}$

6 0

3 years ago

Una librería consta de 5400 libros repartidos en 3 estanterías

pishuonlain [190]

Answer:

B = 900 Libros

A = 2700 Libros

C = 1800 Libros

Step-by-step explanation:

A = 3B

2B = C

A + B + C = 5400

3B + B + 2B = 5400

6B = 5400

B = 5400 / 6

B = 900 Libros

A = 3B

A = 3(900)

A = 2700 Libros

C = 2B

C = 2(900)

C = 1800 Libros

7 0

3 years ago

A football game lasted 3.15 hours. how many seconds did the game last? if necessary, round your answer to the nearest tenth of a

Eva8 [605]

It would be 11340 seconds.
Hope this helps!

6 0

4 years ago

Read 2 more answers

How do u simplify this expression 8.9-1.4x+(-6.5x)+3.4?

Mumz [18]

Answer:

-5.1x + 12.3

Step-by-step explanation:

Combine like terms: first, combine the x terms, obtaining -5.1x.

Next, combine the constants, obtaining 12.3.

The simplified expression is -5.1x + 12.3

7 0

3 years ago

Hhhhhhhhhhhheeeeeeeeeelllllpppppppppp me

anzhelika [568]

Answer:

m<b=107º

Step-by-step explanation:

180-41-32=107

D and B are congruent

3 0

3 years ago