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2 years ago

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How to rename 30,000.

2 answers:

Bas_tet [7]2 years ago

7 0

Presuming that you're referring to scientific notation, 30000 would be 3 * 10^4 or 3E4.

Its prime factorization is 2^4×3×5^4, and it is <span>111010100110000 in binary </span>

Airida [17]2 years ago

6 0

Thirty thousand is ure answer

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zavuch27 [327]

2rd one I could be wrong tho

6 0

2 years ago

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The mean time it takes to walk to the bus stop is 8 minutes (with a standard deviation of 2 minutes) and the mean time it takes

kifflom [539]

We have been given for a normal distribution the mean time it takes to walk to the bus stop is 8 minutes with a standard deviation of 2 minutes. And the mean time it takes for the bus to get to school is 20 minutes with a standard deviation of 4 minutes.

(a) Average time that it would take reach school can be obtained by adding the average times.

8+20 = 28 minutes.

(b) Standard deviation of the trip to school can be found as:

$\sigma =\sqrt{2^{2}+4^{2}}=\sqrt{4+16}=\sqrt{20}=4.47$

Therefore, standard deviation of the entire trip is 4.47 minutes.

(c) Let us first find z score corresponding to 30 minutes. $z=\frac{x-\mu }{\sigma }=\frac{30-28}{4.47}=0.447$

We need to find the probability such that $P(x>30)=P(z>0.447)=0.67$

Therefore, the required probability is 0.67.

(d) If average time to walk to school is 10 minutes, then overall average time for the trip will be 10+20 = 30 minutes.

(e) Standard deviation won't change it will remain 4.47

(f) The new probability will be:

$z=\frac{x-\mu }{\sigma }=\frac{30-90}{4.47}=0$

$P(x>30)=P(z>0)=0.5$

Therefore, probability will be 0.50.

6 0

2 years ago

Read 2 more answers

A rectangle width is one fourth it’s length, outs are is 9 square units. The equation I(1/4I)=9 can be used to find I, the lengt

OlgaM077 [116]

Answer:

The length of rectangle is 6 units and the width is 1.5 units

Step-by-step explanation:

Let

L -----> the length of rectangle

W ----> the width of rectangle

we know that

The area of rectangle is equal to

$A=LW$

we have

$A=9\ units^{2}$

so

$9=LW$ -----> equation A

A rectangle width is one fourth it’s length

so

$W=\frac{1}{4}L$ ----> equation B

substitute equation B in equation A and solve for L

$9=L(\frac{1}{4}L)$

$L^{2}=9*4$

$L^{2}=36$

take square root both sides

$L=6\ units$

Find the value of W

$W=\frac{1}{4}(6)$

$W=1.5\ units$

5 0

3 years ago

Julie spent 1/6 of her money on books , 1/3 of the remainder on a dress and saved the rest.

Lana71 [14]

The answers are 5/9 and $234.

6 0

2 years ago

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Simplify the expression 18x^2/3x^6 .

sammy [17]

Answer:

6/x^4

Step-by-step explanation:

7 0

2 years ago