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padilas [110]
3 years ago
11

The volume of the spheres is 500/3 pie cubic units What is the value of X?

Mathematics
2 answers:
Vlad [161]3 years ago
7 0

Answer:

x=5 assuming that x is the radius.

x is the radius?

Step-by-step explanation:

V=\frac{4}{3} \pi r^3 is the volume of a sphere.

We are given V=\frac{500}{3} \pi cubic units.

We are asked to find the value of x.  If x is not the radius, please correct me:

V=\frac{4}{3}\pi r^3 with  V=\frac{500}{3} \pi  and the assumption that x is r.

\frac{500}{3}\pi=\frac{4}{3}\pi x^3

If you multiply both sides by 3, then you would have:

500 \pi=4 \pi x^3

If you divide both sides by \pi you will have:

500=4x^3

If you divide both sides by 4, you will have:

125=x^3

The last step would be to take the cube root of both sides:

\sqrt[3]{125}=x

5=x

x=5

Julli [10]3 years ago
3 0

Answer:

125

Step-by-step explanation:

500 ÷ 4 = 125

I think this is the right answer. sorry if I'm wrong.

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g natasha is in a class of 30 students that selects 4 leaders. How many ways are there to select the 4 leaders so that natasha i
Papessa [141]

Answer:

<h2>3,654 different ways.</h2>

Step-by-step explanation:

If there are 30 students in a class with natasha in the class and natasha is to select four leaders in the class of which she is already part of the selection, this means there are 3 more leaders needed to be selected among the remaining 29 students (natasha being an exception).

Using the combination formula since we are selecting and combination has to do with selection, If r object are to selected from n pool of objects, this can be done in nCr number of ways.

nCr = n!/(n-r)!r!

Sinca natasha is to select 3 more leaders from the remaining 29students, this can be done in 29C3 number of ways.

29C3 = 29!/(29-3)!3!

29C3 = 29!/(26!)!3!

29C3 = 29*28*27*26!/26!3*2

29C3 = 29*28*27/6

29C3 = 3,654 different ways.

This means that there are 3,654 different ways to select the 4 leaders so that natasha is one of the leaders

5 0
3 years ago
If there is one-third of a pizza left, and Becky only wants to eat one-half of it, how much of the pizza does she want?
natali 33 [55]
She wants to eat 1/6 of the pizza.
5 0
2 years ago
Read 2 more answers
According to a college survey 32% of all students work fulltime. Find the mean for the number of students who work full time in
VLD [36.1K]

Answer:

mean is equal to 5.12

Step-by-step explanation:

<em>We are given that 32% of college students work fulltime. We have to find the mean for the number of student s who are working full time in a sample of 16</em>

success rate, p = 32% = 0.32

Sample size is denoted as n = 16

The forumla of mean is given as

mean = sample size × success rate

mean = n × p

         = 16 × 0.32

         = 5.12

3 0
2 years ago
Can someone help me with this and show their work and how they found the answer?
Semenov [28]

Answer:

2kg

Step-by-step explanation:

Let the sum of the other 2 bricks be R. Given that the heaviest brick weighs 2/3 times as much as the other 2 bricks in total, then the weight of the heaviest brick H in terms of the weight of the other 2 will be

H = 2/3 * R

= 2R/3

Given that the 3 bricks weigh 5kg in total then,

2R/3 + R = 5

Multiply through the equation by 3

2R + 3R = 15

5R = 15

Divide both sides by 5

R = 15/5

= 3

The weight of the heaviest brick is 2R/3. Since R = 3, the heaviest block weighs

= 2 * 3/3

= 2kg

4 0
3 years ago
Help me please show me step by step how to do this it is due soon
serious [3.7K]

Answer:

9x-2=5x+54

9x-5x=54+2

4x=56

4x/4=56/4

x= 14

180-124=56°

10y+6=56

10y=56-6

10y=50

10y/10=50/10

y=5

5 0
3 years ago
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