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stiv31 [10]
3 years ago
15

Which of the following values represents an index of refraction of an actual material? A. 1.25 B. 0 C. .25 D. .5

Mathematics
1 answer:
Artist 52 [7]3 years ago
6 0
A is your answer .-.
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Find the value g(-2), where g is defined below.<br> g(x) = 2x^2- 4x – 4
DanielleElmas [232]

Answer:

12

Step-by-step explanation:

For this question, simply plug in -2 for x:

g(-2)=2(-2)^2-4(-2)-4\\g(-2)=2(4)+8-4\\g(-2)=8+8-4\\g(-2)=12

Hope this helps!!

8 0
3 years ago
-5t = -45 please help
gladu [14]

Answer:

t = 9

Step-by-step explanation:

8 0
3 years ago
Drag each tile to the correct box. A group of marine biologists on a marine expedition recorded the elevations at which they fou
yarga [219]

Answer:

Garden eel, Great white shark, sea urchin, Sea turtle

Step-by-step explanation:

Given that:

Animal ____ altitude

Sea turtle __ - 502

Sea urchin __ - 452

Garden eel __ - 396

Great white shark __ - 430

Arranging in decreasing order of elevation :

-396 > - 430 > - 452 > - 502

Hence, the animals can be arranged in decreasing order of elevation thus :

Garden eel, Great white shark, sea urchin, Sea turtle

4 0
3 years ago
Read 2 more answers
Simplify.
Semmy [17]
The answer will be D 15m+2n
7 0
3 years ago
Read 2 more answers
The mean of a normal probability distribution is 500 and the standard deviation is 10. about 95 percent of the observations lie
PIT_PIT [208]

Answer:

So about 95 percent of the observations lie between 480 and 520.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviations of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

The mean is 500 and the standard deviation is 10.

About 95 percent of the observations lie between what two values?

From the Empirical Rule, this is from 500 - 2*10 = 480 to 500 + 2*10 = 520.

So about 95 percent of the observations lie between 480 and 520.

5 0
4 years ago
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