3 years ago

Which of the following Platonic solids is also a cone?

Mathematics

1 answer:

Svet_ta [14]3 years ago

7 0

Answer:

None of these

Step-by-step explanation:

Apex

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A truck that can carry no more than 7100 lb is being used to transport refrigerators and upright pianos. Each refrigerator weigh

pishuonlain [190]

Let x be the number of refrigerators

Y be the number of pianos

So the inequality:

300x + 475y < 7100

So substitute 12 and 8 to the inequality

300(12) + 475(8) < 7100

3600 + 3800 < 7100

7400 < 7100 is not true

So it will overload the truck

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3 years ago

Find the product. (4m^2 – 5)(4m^2 + 5)

aliya0001 [1]

Answer: 16m^4−25

Step-by-step explanation:

(4m^2−5)(4m^2+5)

=(4m^2+−5)(4m^2+5)

=(4m^2)(4m^2)+(4m^2)(5)+(−5)(4m^2)+(−5)(5)

=16m^4+20m^2−20m^2−25

=16m^4−25

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3 years ago

What is the value of g(9)?

ryzh [129]

I think B should be the answer

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3 years ago

Which of the following most commonly influences weather?

astraxan [27]

The answer should be jet streams. :)

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3 years ago

A set of average city temperatures in May are normally distributed with a mean of 20.66 ^\circ \text{C}20.66

Angelina_Jolie [31]

Answer:

0.9962

Step-by-step explanation:

The z score shows the number of standard deviations by which the raw score is above or below the mean. If the raw score is above the mean then the z score is positive but if the raw score is less than the mean then the raw score is negative. The z score is given by:

$z=\frac{x-\mu}{\sigma}\\ \\\mu=mean,\sigma=standard\ deviation, x=raw\ score$

μ = 20.66°C, σ = 2°C

For x < Singapore temperature, i.e. x < 26

$z=\frac{x-\mu}{\sigma} =\frac{26-20.66}{2}=2.67$

From the normal distribution table P(x < 26) = P(z < 2.67) = 0.9962

4 0

3 years ago