3 years ago

Find the area of a circle with the radius 48mm. Use 3.14 as pie. Round to the nearest hundredth if necessary.

Mathematics

1 answer:

inn [45]3 years ago

7 0

$48 \times 3.14$

150.72mm^2

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The table shows the time it takes Jenny to swim laps. How long will it take her to swim 14 laps?

Dahasolnce [82]

14 laps of swimming will take her 10 1/2 minutes.

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3 years ago

Write an equivalent expression for 8(3+5•)+7•+4 if•

Vadim26 [7]

8 times 3 then 8 times 5 then add the two then write the rest of the expression

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3 years ago

A rectangle with a perimeter of 19m^2+2m-10 and a width of m^2 write an expression for the lenght

expeople1 [14]

Answer:

$8.5m^{2}+ m -5$

Step-by-step explanation:

Since perimeter, $P=19m^{2}+ 2m -10$ and we know that P=2(l+w) then $P=2(l+m^{2})=2l+2m^{2}$

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3 years ago

A bag contains 7 red marbles, 3 blue marbles and 5 green marbles. If three marbles

worty [1.4K]

Answer:

3.7%

Step-by-step explanation:

We know that from this situation, the probability of drawing a single green marble is 1/3. However, to find the probability of drawing 3 green marbles, we will need to do:

$P= \frac{1}{3}* \frac{1}{3}*\frac{1}{3}$

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$P= \frac{1}{27}$

This converts to a percentage of:

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We get a percentage of 3.7%

8 0

3 years ago

RESOLVER LOS SIGUIENTES SISTEMAS DE ECUACIONES APLICANDO EL METODO DE SUSTITUCION

kiruha [24]

Answer:

x = 1/2; y = 1/3

Step-by-step explanation:

2x + 3y = 2 Eq. 1

-6x + 12y = 1 Eq. 2

Eq. 1

2x + 3y = 2

2x = -3y + 2

x = -3/2 y + 1

Eq. 2

-6x + 12y = 1

De Eq. 1 sabemos que x = -3/2 y + 1

-6x + 12y = 1

-6(-3/2 y + 1) + 12y = 1

9y - 6 + 12y = 1

21y - 6 = 1

21y = 7

y = 7/21

y = 1/3

Eq. 1

2x + 3y = 2

2x + 3(1/3) = 2

2x + 1 = 2

2x = 1

x = 1/2

Respuesta: x = 1/2; y = 1/3

3 0

3 years ago