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Dafna1 [17]
3 years ago
10

A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular t

o each other, at 23 m/s . The third piece has twice the mass as the other two.

Mathematics
1 answer:
vlada-n [284]3 years ago
6 0

Answer:

Step-by-step explanation:

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Si tenemos un rectángulo en el que su base es igual a x+10 y su altura es igual a x+9, ¿cuál será la expresión algebraica correc
aksik [14]

Responder:

x² + 19x + 90

Explicación paso a paso:

Área del rectángulo = Base * Alto

Dado

Base = x + 10

Altura = x + 9

Área del rectángulo = (x + 10) (x + 9)

Área del rectángulo = x (x) + 9x + 10x + 9 (10)

Área del rectángulo = x² + 9x + 10x + 90

Área del rectángulo = x² + 19x + 90

La expresión que representa el área si la cifra es x² + 19x + 90

8 0
2 years ago
A cylindrical metal pipe has external diameter of 6cm and internal diameter of 4cm. Calculate the volume of metal in a pipe of l
ArbitrLikvidat [17]

Answer:

volume is 1570 cm³

mass is 12560 g

Step-by-step explanation:

1m = 100 cm

the volume is :

1/4 x \pi x 6² x 100 - 1/4 x \pi x 4² x 100

= 900 \pi - 400 \pi              { v = 1/4 \pi d²h }

= 500 \pi

= 500 x 3.14

= 1570 cm³

the mass of the pipe is:

1570 x 8 = 12560 grams

5 0
2 years ago
Solve for the values of x and y.
Alekssandra [29.7K]

Answer:

x = 20

y = 7.2

Step-by-step explanation:

12/x = 9/15

9x = 180

x = 20

12/x= y/12

12/20 = y/12

144 = 20y

y = 7.2

y = 20

8 0
3 years ago
There are 20 light bulbs in 5 packages.Complete the table to find the rate that gives you the number of light bulbs in 3 package
blondinia [14]
Given that t<span>here are 20 light bulbs in 5 packages.

The table to find the rate that gives you the number of light bulbs in 3 packages is given as follows:

\begin{tabular}&#10;{|c|c|c|c|c|c|}&#10;Light bulbs&4&8&12&16&20\\[1ex]&#10;Packages&1&2&3&4&5&#10;\end{tabular}

Three different ways in which the rate can be written are:

12 light bulbs to 3 packages

12 light bulbs : 3 packages

12 light bulbs / 3 packages
</span>
7 0
3 years ago
Ok, so I gotta find the area for these rooms, but its not clear where the rooms end.. Where would you guys say the living room e
notsponge [240]
Measure your foot size then go to the wall barefooted and walk in a straight line to the door the wall to wall the against the wall then add
8 0
3 years ago
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