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3 years ago

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The longest rail tunnel, from Hanshu to Hokkaido, Japan, is 18.2 mi longer than the longest road tunnel, from Laerdal to Aurland

, Norway. Express the length of the longest rail tunnel in terms of the length L of the longest road tunnel.

1 answer:

Alexxx [7]3 years ago

4 0

(length of longest rail tunnel) = L +18.2

_____
in miles.

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Kyle received the following course grades for 10 (three-credit) courses during his freshman year:

timofeeve [1]

Answer:

(a) The average grade point is 2.5.

(b) The relative frequency table is show below.

(c) The mean of the relative frequency distribution is 0.3333.

Step-by-step explanation:

The given data set is

4, 4, 4, 3, 3, 3, 1, 1, 1, 1

(a)

The average grade point is

$Average=\frac{\sum x}{n}$

$Average=\frac{4+4+4+3+3+3+1+1+1+1}{10}$

$Average=2.5$

Therefore the average grade point is 2.5.

(b)

$\text{Relative frequency}=\frac{\text{Frequency of number}}{\text{Total frequency}}$

The relative frequency table is show below:

x f Relative frequency

4 3 $\frac{3}{10}=0.3$

3 3 $\frac{3}{10}=0.3$

1 4 $\frac{4}{10}=0.4$

(c)

Mean of the relative frequency distribution is

$Average=\frac{0.3+0.3+0.4}{3}$

$Average=0.3333$

Therefore the mean of the relative frequency distribution is 0.3333.

4 0

3 years ago

Pls help me and thanks

mojhsa [17]

Answer = 5.656854249

Step by step:

This equation is just a simple Pythagorean theorem ( if you were not aware, it’s a2 + b2 = c2. To get c is to find the square root of c)

5 0

3 years ago

Read 2 more answers

Give one real word example for the following: perimeter, area, volume.

stealth61 [152]

Answer:

perimeter of a children's playground, area of a house, volume of a glass of orange juice.

Step-by-step explanation:

7 0

3 years ago

Rita bought some large packets of salt weighing 500grams each and some small packets of salt weighing 200 grams each. If she has

Rama09 [41]

L+S=8, L=8-S

500L+200S=2200, using L from above in this equation gives you:

500(8-S)+200S=2200

4000-500S+200S=2200

4000-300S=2200

-300S=-1800

S=6, and since L=8-S:

L=2

So Rita bought 2 large packets and 6 small packets.

5 0

3 years ago

PLEASE ANSWER ASAP CORRECT ANSWER GETS BRAINLIST

geniusboy [140]

I guess the number 2 is to indicate the question...

Then the equation would be 1/3 - 1/2x = -2/3

1/3 - 1/2x - 1/3 = -2/3 - 1/3

-1/2x = -3/3

-1/2x = -1

-1/2x *2 = - 1*2

-x = -2

-x * -1 = -2 * -1

x = 2

Good luck

5 0

3 years ago