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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

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How many different triangles can be constructed with side measurement 6 cm 9 cm and 13 cm
SVETLANKA909090 [29]

Answer:

A. Exactly one triangle

4 0
3 years ago
A analog clock (with hour and minute hands) is set to 5:00 P.M. After 30 min, what will the measure of the major arc formed by h
VikaD [51]

Answer:

180 degrees

Step-by-step explanation:

Given

Time = 5:00pm

Required

The measure of the major arc, 30 minutes after

First, we calculate the time after 30 minutes

Time = 5:00pm +30\ mins

Time = 5:30pm

At 5:30pm, the hour and the minute hand will be directly opposite each other.

In other words, the hands divide the time into two equal parts (180 degrees each)

At this point, there is no major or minor arc as both sides have the same measurement

<em>Hence, the measure of the arcs is 180 degrees</em>

4 0
3 years ago
Which ordered pair in the form(x,y) is a solution of this equation?
Gnom [1K]

The ordered pair is (-2, -3)

Step-by-step explanation:

  • Step 1: To find whether an ordered pair is a solution, substitute values of x and y and see whether it satisfies the equation.

(-3, -2) ⇒ 7 × -3 - 5 × -2 = -21 + 10 = -11 ≠ 1

(-2, -3) ⇒ 7 × -2 - 5 × -3 = -14 + 15 = 1

(0, 4) ⇒ 0 - 5 × 4 = 20 ≠ 1

(4, 0) ⇒ 7 × 4 - 0 = 28 ≠ 1

So the ordered pair is (-2, -3)

8 0
3 years ago
Middle school basketball court is 74 ft long 42ft wide what is perimeter in feet and meters
MAVERICK [17]
The perimeter in feet is 232 feet and in meters it’s roughly 70 meters
4 0
3 years ago
Which expresion represents the perimeter of the rectangle above (3y-5), 2y
Sonbull [250]
(3y-5 + 2y)*2 = (5y-5)*2 = 10y-10
3 0
3 years ago
Read 2 more answers
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