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strojnjashka [21]
3 years ago
10

What is the volume of a rubber ball that has a radius of 1.7 cm

Mathematics
2 answers:
tino4ka555 [31]3 years ago
5 0
I believe the volume of one rubber ball is 20.58780
Genrish500 [490]3 years ago
5 0

Answer:

20.59 cubic centimeters

Step-by-step explanation:

For a rubber ball

radius (r) = 1.7 cm

<u>Volume of a Sphere </u>

<em>= 4/3 * π * r^3</em>

= 4/3 * 22/7 * 1.7 * 1.7 * 1.7 cm

= 20.59 cm^3

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Find negative x when x is negative seven
Free_Kalibri [48]
Thus, we multiply the numbers together as we normally would, and then put a negative sign in front of our answer. So, 4 x -3 = -12. Please note that this also works when the negativenumber comes first and the positive number is second. For example, you may see it written -3 x 4, but don't get confused
7 0
2 years ago
Simplify the square root of 7+2<br> So 7+2 is inside the quare root
serious [3.7K]

Answer:

  3

Step-by-step explanation:

\sqrt{7+2}=\sqrt{9}=\sqrt{3^2}=\boxed{3}

6 0
3 years ago
Which expression is equivalent to log_5(x/4)^2?
viktelen [127]

For this case we must find an expression equivalent to:

log_ {5} (\frac {x} {4}) ^ 2

So:

We expanded log_ {5} ((\frac {x} {4}) ^ 2)by moving 2 out of the logarithm:

2log_ {5} (\frac {x} {4})

By definition of logarithm properties we have to:

The logarithm of a product is equal to the sum of the logarithms of each factor:

log (xy) = log (x) + log (y)

The logarithm of a division is equal to the difference of logarithms of the numerator and denominator.

log (\frac {x} {y}) = log (x) -log (y)

Then, rewriting the expression:

2 (log_ {5} (x) -log_ {5} (4))

We apply distributive property:

2log_ {5} (x) -2log_ {5} (4)

Answer:

An equivalent expression is:

2log_ {5} (x) -2log_ {5} (4)

3 0
3 years ago
A bag of marbles contains 28 red marbles, 30 green marbles, and 24 yellow marbles. What is the ratio of red marbles to yellow ma
Basile [38]

Answer:

The answer to your question is 7:6

Step-by-step explanation:

Data

Number of red marbles = 28

Number of green marbles = 30

Number of yellow marbles = 24

Radio = ?

Process

1.- Write the ratio

                   Red marbles : Yellow marbles

2.- Substitution

                                  28 : 24

3.- Simplification

-Divide both terms by 2

                                  14 : 12

-Divide by two both terms

                                    7 : 6

-It is not possible to simplify more.

4 0
2 years ago
Read 2 more answers
Kyle spend 1/5 of his money on clothing. He had 120 remaining. What was the cost of the clothes Kyle bought
dolphi86 [110]

Answer:

30 is the cost of clothes Kyle bought.

Step-by-step explanation:

Given: Kyle spend 1/5 of his money on clothing.

          Remaining money is 120.

Lets assume the total money Kyle had be "x".

∴ Money spent on clothes = \frac{1}{5}\times x= \frac{x}{5}

Now, putting up value in the equation to find the total amount of money.

We know, money remaining is 120

x-\frac{x}{5} = 120

Taking LCD subtract the fraction.

⇒ \frac{(x\times 5)- x\times 1}{5} = 120

⇒ \frac{5x-x}{5} = 120

⇒\frac{4x}{5} = 120

Multiplying 5 both side

⇒4x= 120\times 5

dividing 4 on both side.

∴x= \frac{120\times 5}{4}

∴ x= 150

Kyle has total 150 money to spend.

Kyle spent \frac{1}{5} of his total money on clothing.

⇒ cost of clothes kyle bought= \frac{1}{5} \times 150= 30

Hence, Kyle spent 30, which was the cost of clothes kyle bought.

6 0
3 years ago
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