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ycow [4]
3 years ago
9

Cube root of 27 what is the closest estimate?

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
8 0

Answer:

dont have options but the cube root of 27 is 3.

Hope this helps plz hit the crown :D

romanna [79]3 years ago
8 0
The cube root of the number 27 is 3
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Item 24 How many blocks do you need to add to Square 6 to get Square 7? To Square 9 to get Square 10? To Square 19 to get Square
kherson [118]

Answer:

You need to add 13 blocks to square 6 to get square 7

You need to add 19 blocks to square 9 to get square 10

You need to add 39 blocks to square 19 to get square 20

Step-by-step explanation:

* Lets explain how to solve the problem

- If we have two consecutive numbers n and (n + 1)

- Their squares are n² and (n + 1)²

- Lets find their difference

∵ Their difference = (n + 1)² - n²

- Solve the bracket (n + 1)²

∵ (n + 1)² = (n)(n) + 2(n)(1) + (1)(1)

∴ (n + 1)² = n² + 2n + 1

∴ Their difference = n² + 2n + 1 - n²

- Add the like terms

∴ Their difference = 2n + 1

- Lets use this rule to find the number of blocks we need to add to:

# square 6 to get square 7

∵ 6 and 7 are two consecutive numbers

∴ n = 6

∴ Their difference = 2(6) + 1 = 12 + 1 = 13

∴ You need to add 13 blocks to square 6 to get square 7

# square 9 to get square 10

∵ 9 and 10 are two consecutive numbers

∴ n = 9

∴ Their difference = 2(9) + 1 = 18 + 1 = 19

∴ You need to add 19 blocks to square 9 to get square 10

# square 19 to get square 20

∵ 19 and 20 are two consecutive numbers

∴ n = 19

∴ Their difference = 2(19) + 1 = 38 + 1 = 39

∴ You need to add 39 blocks to square 19 to get square 20

3 0
4 years ago
Bob and joe have a class together at Kensington college. They leave the class at the same time. Bob goes to the library at 4 mil
galben [10]

Solution

For this case we can create the following schema

We can use the definition of distance:

x= vt

We can find the relative velocity:

V_{\text{rel}}=4-2=2\frac{mi}{hr}

And the distance between both is required to be 2 mi so then we can find the time like this:

t=\frac{x}{v_{\text{rel}}}=\frac{2mi}{\frac{2mi}{hr}}=1hr

Then the answer is:

1 hr

5 0
1 year ago
An office has 150 employees, and 30 of the employees work the night shift. What percentage of the employees work the night shift
Zanzabum
<h2>Answer:</h2>

The percent of employees who work in the night shift are:

                                     20%

<h2>Step-by-step explanation:</h2>

Total number of employee in the office are: 150

Number of employee who work in the night shift are:  30

The percent of the employee who work in the night shift is calculated as follows:

\dfrac{\text{Number\ of\ people\ working\ in\ the\ night\ shift}}{\text{Total\ number\ of\ employees}}\times 100

Hence, on putting the value in the above formula we get:

=\dfrac{30}{150}\times 100\\\\\\=\dfrac{1}{5}\times 100\\\\\\=20\%

            Hence, the answer is:

                          20%

4 0
4 years ago
Read 2 more answers
The time to failure (in hours) for a laser in a cytometry machine is modeled by an exponential distribution with . Round the ans
wariber [46]

Answer:

a)e^-(λ20891)

b)1-e^-(λ30598)

c)1-e^-(λ30598)-e^-(λ20891)

Step-by-step explanation:

The probability density function (pdf) of an exponential distribution is

f(x,λ)=λe^-(λx) for x>0, and 0 for x<0

The cumulative distribution function is given by

F(x,λ)=1-e^-(λx) for x>0, and 0 for x<0

P(X≥20891)=1-P(X≤20891)=1-F(20891,λ)=e^-(λ20891)

P(X≤30598)=F(30598,λ)=1-e^-(λ30598)

P(20891≤X≤30598)=F(30598,λ)-(20891,λ)=1-e^-(λ30598)-e^-(λ20891)

5 0
3 years ago
How many 3/4 can fit into 3?
dolphi86 [110]

Answer:

3

Step-by-step explanation:

6 0
3 years ago
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