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kupik [55]
3 years ago
5

Measured in meters the wavelength of red light is about 8 times 10^-7, and the wave Leung violet light is 4 times 10^-7. The wav

elengths red light is how many times longer than the wavelength of violet light?
8 times 10^-7m
4 times 10^-7m

A. 4 times as long
B. 10^2 times as long
C. 2 times as long
D. 10^7 times as long
Mathematics
2 answers:
forsale [732]3 years ago
6 0

Answer:

2 times as long

Step-by-step explanation:

I know because i got it right!

Can you mark me brainlest please!

zubka84 [21]3 years ago
4 0

Answer:

C. 2 times as long

Step-by-step explanation

8 times 10^-7 written in standard form is 0.0000008

4 times 10^-7 written in standard form is 0.0000004

divide both of them:

=2

You might be interested in
Can someone please explain?
AlladinOne [14]
<h2>Hello!</h2>

The answer is:

The correct option is the first option:  

y=-4x+64

<h2>Why?</h2>

To write the equation of the line in slope-interception  form we need to extract all the information that we need from the graphic.

We must remember that the slope-interception form of the lines is:

y=mx+b

Where,

y, is the function

m, is the slope of the line

x, is the variable

b, is the y-axis intercept

We can find the slope using the following formula:

m=\frac{ChangeInY}{ChangeInX}

Which is for this case:

m=\frac{64}{16}=4

As we can see from the graphic, the line is decresing, so the sign of the slope "m" will be negative, so:

m=-4

We can find the value of "b" seeing where the line intercepts the y-axis.

As we can see it intercept the y-axis at:  y=64

Then, now that we already know the value of "m" and "b", we can write the equation of the line:

y=mx+b=-4x+64\\y=-4x+64

So, the correct option is the first option:

y=-4x+64

Have a nice day!

4 0
2 years ago
Simplify the rational expressions. State any excluded values. X^2-4/2-x
tatiyna

Answer:

-x-2;  x\neq2

Step-by-step explanation:

\frac{x^2-4}{2-x}-->

\frac{(x-2)(x+2)}{(2-x)} -->

-(x+2); x CAN'T equal 2, because the denominator of the original fraction would be 0, which would make the term undefined.

4 0
3 years ago
enuity CUBetween which two numbers will you find 5.634 x 102?OA) 0.0562 and 0.0563OB) 0.0563 and 0.0564OC) 562 and 563OD) 563 an
Rudiy27

The number:

5.634\times10^2

is going to be between the numbers 563 and 564; since 10 squared equals 100 and the decimal point will move to places to the right.

Therefore, the answer is D.

8 0
1 year ago
At a lunch stand, each hamburger has 50 more calories than each order of fries. If 2 hamburgers and 3 orders of fries have a tot
Vedmedyk [2.9K]

Answer: 960 calories

Step-by-step explanation:

Given

Each hamburger has 50 more calories than each order of fries

Suppose each order of fries has x calories

so, hamburger has x+50 calories

There are total of 1700 calories available. Thus, we can write

\Rightarrow 2(x+50)+3x=1700\\\Rightarrow 2x+3x=1700-100\\\Rightarrow 5x=1600\\\Rightarrow x=320

So, each order of fries has 320 calories

For 3 orders, it is 320\times 3=960 calories

7 0
2 years ago
A complete graph is defined as what ???
galina1969 [7]

Answer:

A complete graph is a graph in which each pair of graph vertices is connected by an edge. The complete graph with graph vertices is denoted and has (the triangular numbers) undirected edges, where is a binomial coefficient. In older literature, complete graphs are sometimes called universal graphs.

Step-by-step explanation:


3 0
3 years ago
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