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3 years ago

7

If a material absorbs almost all the light waves that reach it, what color will the human eye see?

2 answers:

Lisa [10]3 years ago

4 0

Answer:

what

Step-by-step explanation:

Vladimir79 [104]3 years ago

3 0

Answer: orange

Step-by-step explanation:

If wavelengths of light from a certain region of the spectrum are absorbed by a material, then the materials will appear to be the complementary color Thus, for instance, if violet light with wavelength of 400nm is absorbed, the material will look yellow. If the material absorbs blue you will see the color <em>orange</em>.

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On a standardized exam, the scores are normally distributed with a mean of 145 and a standard deviation of 25. Find the z-score

Kryger [21]

Answer:

z = 2.6

Step-by-step explanation:

<u>Use the formula for z-score</u>

$z=\frac{x-\mu}{\sigma}\\ \\z=\frac{210-145}{25}\\ \\z=\frac{65}{25}\\ \\z=2.6$

This tells us that this person's score of 210 places them 2.6 standard deviations above the mean

5 0

2 years ago

Two angles are supplementary if their sun is 180. The larger angle measures five degrees more than four times the measures of a

Jet001 [13]

Answer:

The smaller angle is 35 and the larger one is 145.

Step-by-step explanation:

In order to find this, we need to express the larger angle in terms of the smaller angle (x).

4x + 5 = large angle.

Now that we have this, we can add them together and set equal to 180.

x + (4x + 5) = 180

5x + 5 = 180

5x = 175

x = 35

Now that we have the value of the smaller angle, we can plug in to get the larger angle.

y = 4x + 5

y = 4(35) + 5

y = 140 + 5

y = 145

3 0

3 years ago

A scientist reviews her data to find the measures of central tendency using a calculator. She finds the average mass of an adult

pishuonlain [190]

Answer:

Hello

Step-by-step explanation:

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4 0

2 years ago

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

liubo4ka [24]

<u>Answer:</u>

3/5

<u>Step-by-step explanation:</u>

We are to find the similarity ratio of a cube with volume $729 m^3$ to a cube with volume $3375 m^3$ .

We know the formula for the ratio of two cubes:

$\frac{V_1}{V_2} =k^3$

where $k$ is the similarity ratio of the two cubes.

Substituting the given values in the formula to find $k$ :

$k^3 = \frac {729} {3375}$

$k^3 = \frac {27} {125}$

$k^3 = (\frac {27} {125})^3$

$k=\frac{3}{5}$

Therefore, the similarity ratio of the two cubes is 3/5.

8 0

3 years ago

Read 2 more answers

Write the slope-intercept form of the equation of the line.

Semenov [28]

Answer:

y = x + 2

Step-by-step explanation:

First, find the slope.

(y2 - y1 / x2 - x1)

I'm going to use (0,-2) and (2,0) as my points.

Find the slope.

(-2) - 0 / 0 - 2= -2 / -2 = 1

So the slope is 1.

Now find the y-intercept.

Y-intercept is 2.

Now substitute it into the slope-intercept form equation. (y = mx + b)

y = x + 2

8 0

2 years ago