MATHEMATICS HIGH SCHOOL

Why is the sky blue?

Thanks :)

Answers

Answer 1
Answer:

Answer:

Violet and blue light have the shortest wavelengths and red light has the longest. Therefore, blue light is scattered more than red light and the sky appears blue during the day. When the Sun is low in the sky during sunrise and sunset, the light has to travel further through the Earth's atmosphere.

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6 Rearrange the linear equation so that it is in slope interceptform. Identify the slope (m) and the intercept (b). You must show your work for full creditX-4=2(y - 3)

Answers

Answer:

y=(1)/(2)x+1 is in the slope-intercept form.

so the slope will be:

  • m=(1)/(2)x  

and y-intercept will be:

  • b = 1

Step-by-step explanation:

Given the equation

x-4=2(y - 3)

As we know that y = mx+b is the slope-intercept form of a line where m is the slope and b is the y-intercept.

Converting to slope-intercept form

x-4=2(y - 3)

switching sides

2\left(y-3\right)=x-4

2y-6=x-4

2y=x-4+6

2y=x+2

y=(1)/(2)x+1

As  y = mx+b is the slope-intercept form of a line where m is the slope and b is the y-intercept.

Therefore, y=(1)/(2)x+1 is in the slope-intercept form.

so the slope will be:

  • m=(1)/(2)x  

and y-intercept will be:

  • b = 1

Last year a large trucking company delivered 9.0 x 105 tons of goods with an average value of $17,000 per ton. What was the total value of the goods delivered? Write the answer in scientific notation

Answers

So, we have 9×105 tons of goods. Which gives us a total of 945 tons.

These goods have the average value of 17000 per ton. When we turn that into an equation we got: 945 * 17000 = 16065000

When we convert that into scientific notation, we can write that as: 1.6065 * {10}^(7)

A rectangle has a perimeter of 26 cm and one of its sides has a length of 5 cm sketch a rectangle and label all of its sides lengths

Answers

Answer:

Step-by-step explanation:

Perimeter of rectangle given = 26 cm

And measure of a side of the rectangle = 5 cm

Since perimeter of a rectangle = 2(length + width)

By replacing the values of perimeter and length in the formula

26 = 2(5 + width)

5 + width = (26)/(2)=13

width = 13 - 5 = 8 cm

Now we can draw a rectangle of length = 5 cm and width = 8 cm  
im thinking both shorter sides are 5cm, and the 2 longer sides are 8cm each... add them all together and you get 26cm

The probablilty that andreas train is late is 0.05 work out the probablilty that her train isnt late?

Answers

Probability is always out of 1, therefore, you have to subtract 0.05 from 1.
1-0.05= 0.95
Therefore, the probablility that the train isn't late is 0.95 (or 95%)
hope this helps :)

1The diagram below shows the length and width of the wall
that Tara is going to cover with wallpaper.
24 feet
(15 feet
What is the least amount of wall paper Tara will need to
cover the entire area of the wall?
A 39 square feet
C 350 square feet
B 78 square feet
D 360 square feet

Answers

Answer:

D. 360 square feet

Step-by-step explanation:

The area of Tara's wall is 24 times 15 which equals 360 sq. feet. This means she would need the same amount of wallpaper to cover it.

If 1 gallon equals 3.8 liters, how many liters are in 12 gallons? Round your answer to the nearest tenth.

Answers